Showing posts with label holiday. Show all posts
Showing posts with label holiday. Show all posts

Friday, April 15, 2022

Easter weekend starts with overnight storms, continues with periods of showers

Overall, it appears most of the area made it through Wednesday's Level 4 severe weather risk pretty well, thank goodness! Outside of a funnel cloud over West Memphis, stealthily captured on video from a vantage point on Mud Island by Jordan Booth, no there were no tornado sightings or damage locally. 


The biggest problem seemed to be very heavy rainfall that caused minor flooding issues around the area. Thursday was a welcome respite from the storms with clear blue skies and low humidity. Unfortunately, the pattern changes quickly this time of year!

For those hoping for a delightfully warm and sunny Easter weekend, Mother Nature has other plans. The good news is I don't expect a washout of a weekend, and not a lot of severe storms. The tougher news is that many of our activities - including Easter egg hunts, proms, Sunday morning worship services, and Grizzlies playoff parties on the FedExForum plaza - might have to deal with some rain. Let's talk it through....



Friday into Friday Night: storms arrive

Clouds increase today as high pressure has shifted to our east and southerly wind becomes re-established. That also means an increase in moisture and building rain chances, especially by this evening, though a couple spotty showers are possible this afternoon. Look for highs to reach the mid 70s after a cool start to the day.

By tonight, we'll be involved in a "squeeze play" as a warm front pushes north from the deep south and a cold front advances into Arkansas from the north. Once the warm front arrives, showers and thunderstorms will become likely. In addition, some thunderstorms forming ahead of the cold front in northern AR will move southeast into our area. All of this means rain chances increase this evening and it is likely to be a wet overnight period with periods of thunderstorms to wake the kids and dog. I expect the highest probability of some storms will be from around midnight through the wee hours of the morning. 

The HRRR model forecast radar loop from 6pm Friday through 6am Saturday shows showers and thunderstorms moving through the Memphis area much of the night. (WeatherBell)

As for severe weather, we are in a Slight Risk (level 2 of 5) for scattered strong to severe storms. Main threats are large hail, strong wind gusts, and heavy rainfall. I really am not concerned about tornadoes tonight and the better chance of severe storms is to our west in the Ozarks and central AR, however some storms in the wee hours of Saturday morning could produce hail stones and strong wind gusts. Flooding could become a concern in spots as rainfall will likely be "efficient" owing to a very saturated airmass overhead and thunderstorms dropping heavy rain. The sinking cold front will overtake the lifting warm front and push south through the metro by sun-up Saturday, bringing the thunderstorm chances to an end. However, the front looks to stall over central MS, which brings us to the rest of the weekend...

A Level 2 (Slight) Risk of severe storms is forecast for Friday night. (NOAA/SPC)


Saturday: Easter eggs, NBA playoffs, proms, and rain showers

With the cold front to our south, but not too far away, I expect a cloudy day with  mild temperatures and a northeast wind. We should stay in the 60s most of the day. We also will likely be dodging rain showers off and on. Model data has been inconsistent on the most likely timing, even the "good" high-resolution model runs this morning. While lingering showers are possible early in the day behind the front, upper level energy could also prompt some showers throughout the day. The normally reliable HRRR model says more wet than dry hours during the day Saturday, while the also very good NAM3 model thinks most of the daytime will be dry. Take your umbrella. 

Comparison of "future radar" from two well-respected models for noon Saturday. #shrug

The good news here is that with northeast wind and the front to the south, thunderstorms should be few and far between.  Saturday night looks to continue the trend with additional chances for rain showers throughout the night, as well as chilly conditions with lows dropping below 50 by the time any Easter Sunrise services start early Sunday morning, while leads us to Easter Day...

Easter Sunday: rain chances continue

Unfortunately, Easter Sunday may not bring excellent opportunities for family photos in your Sunday best, at least outside with the azaleas. Overnight rain chances will likely continue into the morning hours. If there's a dry period Sunday, it could be late morning through mid-afternoon, because by late afternoon and evening, one more wave of moisture production arrives as a reinforcing cold front moves through. I can't rule out some thunderstorm activity late Sunday afternoon and evening with the front, but severe weather chances look slim to none. All of that activity moves out Sunday night though. As for temperatures, it'll be cool Sunday. Starting in the upper 40s, we'll only see temperatures top out in the lower 60s, or about 10 degrees below average.

Rainfall totals for Easter weekend will likely be close to 2" total, more to the east of the city and less to the west. Keep the umbrella handy! (NWS-Memphis)

Next week: mostly dry and warming by mid-week

Behind this weekend's systems, we finally look to catch a multi-day break from rain and storms, though below average temperatures continue. Generally, expect sunny skies Monday and Tuesday with lows in the 40s and highs in the mid 60s. Clouds increase Wednesday leading to a minor chance of rain Thursday, though it looks like it might stay to our west as warmer high pressure builds over the southeast U.S. and temperatures climb back into the 70s for highs mid to late week.

Erik Proseus
MWN Meteorologist

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Follow MWN on Facebook and Twitter for routine updates and the latest info!
Complete MWN Forecast: MemphisWeather.net on the mobile web or via the MWN mobile app
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MWN is a NOAA Weather Ready Nation Ambassador Meteorologist Erik Proseus is an NWA Digital Seal Holder

Friday, November 20, 2020

November warmth continues this weekend, but how does Thanksgiving look?

Gorgeous fall weather has been with us much of this week as temperatures have been above average for a few days with dry conditions since Sunday morning's frontal system and brief downpours. As we look towards Thanksgiving and the remaining days of November, can we expect the unseasonably warm weather to continue? And what about rain chances for the holiday?

This weekend

Out next frontal system is still about 48 hours away, but clouds will begin to move in ahead of it tonight into Saturday, shielding the sunshine we've enjoyed this week. However, warmer and moister air will continue to filter in on a southerly breeze, so expect mild overnight conditions tonight with lows in the 50s and warm weather for Saturday with highs near 70 once again. If you are one of the lucky ones with tickets to the Tigers football game Saturday afternoon, here's your Senior Day forecast:


By Sunday, the front moves through and rain chances increase. We'll see scattered showers during the day. Models are still honing in on most likely timing, but it appears best rain chances may be in the morning to early afternoon hours. By late afternoon and evening, we should be dry, but a north wind will make for good weather for the fire pit! After morning lows in the mid 50s, we'll top out in the low 60s before temperatures fall in the afternoon. Rain chances are in the 50-60% range but could climb a bit more as we draw closer. No major deluges are expected with totals in the quarter-inch range.

An early look at what radar might look like from Saturday night at midnight through 6pm Sunday, based on the NAM3 model. Scattered showers are the most likely form of precipitation, ending by mid afternoon. (WxBell)


Early Thanksgiving week

Once the front clears out Sunday evening, we'll be looking at a mix of sun and clouds to start next week with much cooler air in place. Morning lows Monday will be in the lower 40s and highs only in the mid 50s, a bit below average for this time of year. Tuesday will see a return of some warmer air as the weather pattern becomes more progressive and the next system moves our way Tuesday night. Mostly dry though during the daytime hours Tuesday with highs back into the 60s.  Rain appears likely from a more potent and wetter system Tuesday night into Wednesday. A few thunderstorms are even possible and rainfall will be heavier at times than Sunday, but it should move out by the back half of Wednesday. Temperatures will be similar to Tuesday.

An early look at mid-week precipitation totals from the European model. An inch or more is possible in the Memphis metro. (WxBell)

Thanksgiving forecast

If you are hoping (and planning) to spend time outdoors for Thanksgiving, conditions at this time appear to be fairly good with slightly above average temperatures continuing for Turkey Day and into the following weekend (mid 60s for afternoon highs, upper 40s for early morning lows). Dry weather looks to be on tap with the next frontal system not expected until at least Friday and possibly Saturday. I think it is safe to make your plans accordingly, but keep an eye on the MWN Forecast and our social media feeds (linked below) in case the mid-week system slows down or the late week front speeds up!



Erik Proseus
MWN Meteorologist

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Follow MWN on Facebook and Twitter for routine updates and the latest info!
Complete MWN Forecast: MemphisWeather.net on the mobile web or via the MWN mobile app
Download our iPhone or Android apps, featuring StormWatch+ severe weather alerts!
MWN is a NOAA Weather Ready Nation Ambassador Meteorologist Erik Proseus is an NWA Digital Seal Holder

Monday, December 23, 2019

A warm Christmas week in Memphis, plus a look at your Cotton Bowl forecast!

We're coming around to Christmas week which means lots of parties, food and family. The last week wasn't too "active" but we did have rain and storms December 16th and some rain yesterday. For most of the past week temperatures sat around or above average with some cheering and others jeering.

Knowing it's Christmas week, I know many of you want to know whats going to happen this week. Good news is that from now until later this week we should see above average temperatures and little rain chance. That will change heading into the weekend but even then rain amounts aren't expected to be too much.

Image result for christmas

Christmas Eve, Christmas Day and Boxing Day (day after Christmas)

Tomorrow on Christmas Eve you can expect mostly sunny skies, highs in the mid 60s and no real chance of rain. Tomorrow night you can expect temperatures to only drop to the upper 40s. This is due to us expecting some high atmospheric clouds to move in called cirrus clouds. High clouds have been shown to keep some heat from radiating into space, therefore not allowing temperatures to get as low.

On Christmas Day we are again expecting some high atmospheric clouds with no rain chance and highs in the mid 60s. Wednesday night (Christmas Day night) clouds are expected to move in and keep overnight temperatures up. Overnight lows will only drop to the mid 50s. On Boxing Day it will most likely be partly sunny, with highs in the mid 60s and a very small chance of sprinkles. Overnight lows will only get down to the mid 50s due to cloud cover again capping the heat near the Earth's surface. 

Image result for christmas paradise
This is a bit of an exaggeration but temperatures will be unseasonably warm for this time of year around Christmas.


Friday, Saturday and Sunday

Friday will again be much of the same story as Thursday with partly sunny conditions, highs in the mid 60s and a slight chance of rain/showers. Friday night lows are only going to drop to the mid 50s due to cloud cover staying during those hours. Saturday is much of the same story with mostly cloudy conditions, a chance of rain/showers and highs in the mid 60s. Saturday night lows are only going to drop to around 50 with cloud cover overhead and a chance of rain. Sunday you can expect scattered showers and possible thunderstorms, with a high around 60. 

Day 5 image not available
The Quantitative Precipitation forecast (QPF) for Saturday evening through Monday shows that rain totals will probably be around an inch. (NOAA/WPC)

Christmas Weather History

Snow and Memphis don't mix. Some of you may have seen the Christmas Day Weather History Blog posted December 21st. The modern record data for Memphis began in 1875 and only 11 times has a trace amount of snow or more fallen on Christmas Day. Officially, the National Climatic Data Center considers a city to have a “White Christmas” if at least one inch of snowfall is on the ground on Christmas morning, no matter when that snowfall occurred. A "White Christmas" has only occurred eight times since 1875. Last, our historical probability of a White Christmas in Memphis is a whopping 3%! As you can see we don't get very lucky when it comes to White Christmases in the Memphis area. If you wish to read more about the Christmas Weather history click the link here.

Will we cool down after New Years?

Some will moan and groan over this while others will cheer it on, but the Climate Prediction Center (CPC) is predicting above average temperatures and slightly below average precipitation for the week of December 31st to January 6th. We still could see a cool down the weekend after Christmas if the low pressure system bringing a passing cold front comes to fruition for the area. 

Latest 8 to 14 Day Temperature Outlook
CPC temperature outlook for December 31st to January 6th.
Latest 8 to 14 Day Precipitation Outlook
CPC precipitation outlook for December 31st to January 6th.

Cotton Bowl Forecast

As you likely know, the Memphis Tigers football team is chasing down one more win this weekend, this time in a New Year's 6 bowl game - the Cotton Bowl in Dallas, TX! Some of you might be headed that way after Christmas, so here's what to expect.


If you are driving to Dallas on Thursday, expect fall-like conditions with partly sunny skies and dry weather. Temperatures will mainly be in the 60s with a high Thursday afternoon in the Big D near 70 degrees! Friday will bring a chance of showers as the system approaching Memphis this weekend from the west moves closer to Dallas. Rain chances are in the 30-50% range Friday with warm temperatures - morning lows in the lower 50s and a high in the upper 60s.

For gameday, the good news is the AT&T Stadium has a dome! I expect dry conditions and lower 70s inside, but wet conditions out! There's a high likelihood of rain and perhaps a few Texas thunderstorms. Temperatures will peak in the mid 60s after morning tailgate temps in the mid 50s. I also expect the Tigers to heat up the scoreboard and come out with the biggest win in school history!


For your drive home on Sunday, it should be mainly dry, but models diverge by this point so don't be surprised if you encounter some showers, particularly the closer you get to Memphis. Temperatures will be cooler, but mild. Expect Sunday morning lows in the Dallas to be in the mid 40s, with 50s along most of your drive.

Max Magness
MWN Meteorologist Intern

Erik Proseus
MWN Meteorologist

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Follow MWN on Facebook and Twitter for routine updates and the latest info!
Complete MWN Forecast: MemphisWeather.net on the mobile web or via the MWN mobile app
Download our iPhone or Android apps, featuring StormWatch+ severe weather alerts!
MWN is a NOAA Weather Ready Nation Ambassador Meteorologist Erik Proseus is an NWA Digital Seal Holder

Thursday, December 20, 2018

A look ahead to your Christmas forecast

Weekend Before Christmas

The weather looks to cooperate for all your weekend Holiday parties and festivities! A cold front will pass through overnight tonight (Thursday night – Friday morning). Friday morning some drizzle will still be possible, but as the front moves out, the moisture will move out as well, allowing skies to gradually clear by late in the day. Drier, colder air will be moving in Friday after the frontal passage, keeping temperatures in the lower 40s and dropping to near freezing at night. All in favor of Friday’s forecast being our Christmas forecast? I wish!

Decent weather is expected Saturday and Sunday with high temperatures in the mid 50s and lows in the mid 40s. There is a chance of some showers late Saturday night into Sunday morning as another cold front pushes through Sunday. The GFS model (shown below) for 6pm Saturday through 6pm Sunday has only 0.02 inches of rain falling and most of it remaining in north MS. Other models have rain occurring further west and north, but the most significant precipitation occurring east of I-40.

GFS model showing most most measurable rainfall remaining in north MS early Sunday, though other models are a little more bullish for the metro. (WxBell)

Christmas Eve (Monday)

Christmas Eve looks to be just an average December day! The high temperature is forecast to be slightly above average (mid 50s) and the low right near average (mid 30s). Some sun is likely to peek out on Christmas Eve, but at least we’ll be waking up to 30 degree temperatures on Christmas morning!



Christmas Day Outlook

Christmas Day is when the forecasting challenge arrives. One reliable model is hinting at scattered showers throughout the day as moisture returns to the area. Changes to this forecast are likely with 5 days still to go before the holiday, but prepare for the possibility.

The big Christmas Day question: Will it be cold enough to “feel” like Christmas? The average is high for Christmas Day in Memphis is 48 and the average low is 33. The forecasted high is in the mid 50s, which puts us above average, but not necessarily warm. It’ll be cool enough to keep on that tacky Christmas sweater and still be comfortable!


Christmas Climatology

The charts below show Christmas Day climatology for the Memphis area. The warmest December 25th on record occurred in 1889 with a high of 76°. The coldest December 25th on record occurred in 1983 when the temperature reached 0° and didn’t climb above 16°. Anyone remember this Christmas Day?

The warmest Christmas Days in Memphis recorded history. 

The coldest Christmases in Memphis history.

Be sure to follow us throughout the upcoming weekend as we fine-tune the forecast for Christmas Day! Hopefully the rain chances disappear, though don't count on a White Christmas this year! You can find the latest forecast on our mobile app or website with links posted below.

Lauren Pounds, Guest Blogger
MWN Social Media Intern

Editor's Note: Lauren has been a dedicated social media intern for MWN for 2 years and is about to depart #TeamMWN as she prepares for a busy last semester at Mississippi State and graduation in May. It was only fitting that she have the opportunity to write a blog "in her own words" before moving on, since she has completed her first real forecasting class. My deepest appreciation and thanks to Lauren for the amazing job she has done for me, and all of you, the past two years! We wish her the best this spring, and in the future, as she achieves her dream of becoming a meteorologist! 
--Erik ]

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Follow MWN on Facebook and Twitter for routine updates and the latest info!
Complete MWN Forecast: MemphisWeather.net on the mobile web or via the MWN mobile app
Download our iPhone or Android apps, featuring StormWatch+ severe weather alerts!
MWN is a NOAA Weather Ready Nation Ambassador Meteorologist Erik Proseus is an NWA Digital Seal Holder

Saturday, November 17, 2018

Recap of the November 14 snow event and a look at Thanksgiving week

The first winter weather event of the 2018-2019 season occurred on Wednesday as a potent upper level low moved over the Mid-South. Snowfall totals pretty well lined up with projections, as shown by the graphic and snow totals list below. The heaviest precipitation occurred over northwest TN and northeast AR, while the immediate metro saw amounts from 1/4-3/4" of snow that melted away on Thursday. The 0.6" at Memphis International Airport was the greatest November snow total since November 7, 1991.


PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
753 AM CST THU NOV 15 2018

THE FOLLOWING ARE UNOFFICIAL OBSERVATIONS REPRESENTING THE TOTAL
AMOUNTS AMOUNTS FOR THE STORM THAT HAS BEEN AFFECTING OUR REGION.
APPRECIATION IS EXTENDED TO COUNTY, STATE, AND LOCAL OFFICIALS,
COOPERATIVE OBSERVERS, SKYWARN SPOTTERS AND MEDIA FOR THESE REPORTS.
THIS SUMMARY ALSO IS AVAILABLE ON OUR HOME PAGE AT
WEATHER.GOV/MEMPHIS

********************STORM TOTAL SNOWFALL********************

LOCATION          STORM TOTAL     TIME/DATE   COMMENTS                   
                     SNOWFALL           OF 
                     /INCHES/   MEASUREMENT

ARKANSAS

...CRAIGHEAD COUNTY...
   JONESBORO              2.0  1100 PM 11/14  911 CALL CENTER         
   4 N JONESBORO          1.8   600 AM 11/15  CO-OP OBSERVER          
   LAKE CITY              1.5  1045 PM 11/14  SOCIAL MEDIA            

...GREENE COUNTY...
   6 W PARAGOULD          1.5   947 PM 11/14  SOCIAL MEDIA            
   2 SSE PARAGOULD        1.0   700 AM 11/15  CO-OP OBSERVER          

...POINSETT COUNTY...
   HARRISBURG             2.0   717 PM 11/14  SOCIAL MEDIA            

MISSISSIPPI

...BENTON COUNTY...
   1 NE ASHLAND           0.3   700 AM 11/15  CO-OP OBSERVER          

...COAHOMA COUNTY...
   3 SW CLARKSDALE        0.6   700 AM 11/15  COCORAHS                

TENNESSEE

...BENTON COUNTY...
   1 NNE BIG SANDY        1.5   816 PM 11/14  TRAINED SPOTTER         
   10 S CAMDEN            1.5   710 PM 11/14  SOCIAL MEDIA            
   CAMDEN                 1.3   744 PM 11/14  SOCIAL MEDIA            

...CARROLL COUNTY...
   BRUCETON               1.5   736 PM 11/14  AMATEUR RADIO           
   4 SE CLARKSBURG        1.3   800 PM 11/14  SOCIAL MEDIA            
   CEDAR GROVE            1.0   500 PM 11/14  TRAINED SPOTTER         
   ATWOOD                 1.0  1000 PM 11/14  SOCIAL MEDIA            

...CHESTER COUNTY...
   4 W HENDERSON          1.0   548 AM 11/15  CO-OP OBSERVER          

...DYER COUNTY...
   DYERSBURG              1.0   628 PM 11/14  PUBLIC                  

...FAYETTE COUNTY...
   6 NW WHITEVILLE        2.0   200 PM 11/14  SOCIAL MEDIA            
   10 N SOMERVILLE        1.1   630 AM 11/15  CO-OP OBSERVER          
   3 W CENTER POINT       0.5   655 AM 11/15  CO-OP OBSERVER          

...GIBSON COUNTY...
   MEDINA                 1.5   747 PM 11/14  SOCIAL MEDIA            
   TRENTON                0.8   819 PM 11/14  SOCIAL MEDIA            

...HARDEMAN COUNTY...
   WHITEVILLE             0.8   411 PM 11/14  TRAINED SPOTTER         

...HENRY COUNTY...
   PARIS                  1.5   745 PM 11/14  TRAINED SPOTTER         

...MADISON COUNTY...
   10 NE JACKSON          2.5   508 PM 11/14  PUBLIC                  
   5 N JACKSON            1.5   650 AM 11/15  CO-OP OBSERVER          
   6 SSE JACKSON          1.3   730 PM 11/14  COCORAHS                
   JACKSON                1.0   422 PM 11/14  BROADCAST MEDIA         
   BEMIS                  0.8   919 PM 11/14  SOCIAL MEDIA            

...OBION COUNTY...
   UNION CITY             1.8   837 PM 11/14  PUBLIC                  

...SHELBY COUNTY...
   3 ENE WHITEHAVEN       0.6   600 PM 11/14  OFFICIAL NWS OBS        
   3 NE BARTLETT          0.5   600 PM 11/14  NWS EMPLOYEE            
   3 N BARTLETT           0.3   512 PM 11/14  TRAINED SPOTTER         
   4 SE GERMANTOWN        0.3   502 AM 11/15  CO-OP OBSERVER          
   2 SW CORDOVA           0.3   800 PM 11/14  OFFICIAL NWS OBS        

...WEAKLEY COUNTY...
   MARTIN                 1.2   915 PM 11/14  PUBLIC                  


...PRELIMINARY SNOW AND SLEET TOTALS SORTED BY MAGNITUDE...

LOCATION                      SNOWFALL    COMMENTS                   
                               IN/S/

10 NE JACKSON TN                2.5        508 PM 11/14/2018         
HARRISBURG AR                   2.0        717 PM 11/14/2018         
JONESBORO AR                    2.0       1100 PM 11/14/2018         
6 NW WHITEVILLE TN              2.0        200 PM 11/14/2018         
4 N JONESBORO AR                1.8        600 AM 11/15/2018         
UNION CITY TN                   1.8        837 PM 11/14/2018         
BRUCETON TN                     1.5        736 PM 11/14/2018         
1 NNE BIG SANDY TN              1.5        816 PM 11/14/2018         
PARIS TN                        1.5        745 PM 11/14/2018         
LAKE CITY AR                    1.5       1045 PM 11/14/2018         
5 N JACKSON TN                  1.5        650 AM 11/15/2018         
MEDINA TN                       1.5        747 PM 11/14/2018         
10 S CAMDEN TN                  1.5        710 PM 11/14/2018         
6 W PARAGOULD AR                1.5        947 PM 11/14/2018         
CAMDEN TN                       1.3        744 PM 11/14/2018         
4 SE CLARKSBURG TN              1.3        800 PM 11/14/2018         
6 SSE JACKSON TN                1.3        730 PM 11/14/2018         
MARTIN TN                       1.2        915 PM 11/14/2018         
10 N SOMERVILLE TN              1.1        630 AM 11/15/2018         
4 W HENDERSON TN                1.0        548 AM 11/15/2018         
CEDAR GROVE TN                  1.0        500 PM 11/14/2018         
2 SSE PARAGOULD AR              1.0        700 AM 11/15/2018         
DYERSBURG TN                    1.0        628 PM 11/14/2018         
JACKSON TN                      1.0        422 PM 11/14/2018         
ATWOOD TN                       1.0       1000 PM 11/14/2018         
TRENTON TN                      0.8        819 PM 11/14/2018         
BEMIS TN                        0.8        919 PM 11/14/2018         
WHITEVILLE TN                   0.8        411 PM 11/14/2018         
3 ENE WHITEHAVEN TN             0.6        600 PM 11/14/2018         
3 SW CLARKSDALE MS              0.6        700 AM 11/15/2018         
3 W CENTER POINT TN             0.5        655 AM 11/15/2018         
3 NE BARTLETT TN                0.5        600 PM 11/14/2018         
3 N BARTLETT TN                 0.3        512 PM 11/14/2018         
4 SE GERMANTOWN TN              0.3        502 AM 11/15/2018         
2 SW CORDOVA TN                 0.3        800 PM 11/14/2018         
1 NE ASHLAND MS                 0.3        700 AM 11/15/2018         

Looking ahead to Thanksgiving week, a generally drier and more seasonal pattern takes over. The main precipitation concern is scattered showers mainly during the night on Sunday into Monday. Thanksgiving should be dry and pleasant for walking off all those calories! Black Friday shoppers won't freeze at Friday morning doorbusters, with moderate temperatures into the holiday weekend. The dry pattern could slip away though with rain projected next weekend.


The National Blend of Models temperature output for Memphis for the coming 10 days features generally seasonal conditions.
Erik Proseus
MWN Meteorologist

----
Follow MWN on Facebook and Twitter for routine updates and the latest info!
Complete MWN Forecast: MemphisWeather.net on the mobile web or via the MWN mobile app
Download our iPhone or Android apps, featuring StormWatch+ severe weather alerts!
MWN is a NOAA Weather Ready Nation Ambassador Meteorologist Erik Proseus is an NWA Digital Seal Holder

Monday, October 29, 2018

6 Things You Need to Know about the Halloween Forecast

Above average temperatures look to continue through the first half of this week before an anticipated cold front brings cool temps in for the second half of the week and into the weekend. Unfortunately, this cold front and rain will likely move through Wednesday evening, during the peak of Halloween festivities. Lots of events will be ongoing, but you should go ahead and prepare for rain that night.

Monday through Wednesday

Our brief period of "warming up" will continue through the first half of this week. A high pressure systems remains situated over the southeastern portion of the U.S., but that is expected to change in the coming days. As our anticipated low pressure system (bringing us the cold front on Wednesday) moves closer to our area, this high pressure will continue to get pushed farther to the east. For the remainder of today and into tomorrow, skies will remain mostly clear. Although, we will begin to see a slight increase in cloud cover tomorrow. 

Weather Prediction Center (WPC) frontal analysis for this afternoon shows high pressure dominating the Mid-South region. (NOAA/WPC)
WPC frontal analysis for Tuesday evening shows our high pressure pushed to the east with an incoming cold front from our west. (NOAA/WPC)
Something interesting to note is as this high pressure gets moved to the east, with the decreasing pressure to our west, we will see a noticeable difference in our winds on Tuesday and Wednesday. Both days, winds could reach 15 mph with gusts upwards of 25 mph. 

NAM1winds and mean sea level pressure analysis from this afternoon through Wednesday morning display this increase of surface wind speeds Tuesday and Wednesday across our area. (TropicalTidbits)
If you have Halloween decorations out, you may want to ensure that they are secure as gusts could make some loose decorations go flying.


As for our temperatures through the first half of the week, we will stay pretty warm if you ask me. Highs will reach near 81 on Tuesday and near 76 on Wednesday, both of these are considered above average for late October. Temps will stay fairly mild tonight and tomorrow night with lows near 56 tonight and near 66 Tuesday night. 

Wednesday will be when we really begin to notice things changing in our weather pattern thanks to a cold front that will pass through the area. We know that Wednesday is Halloween and a lot of you likely have plans of some kind. For that reason, we decided to include a Q&A that will hopefully answer any questions you may have about trick or treating! 


6 Things You Need to Know about the Halloween Forecast:

1. What time will the rain arrive?
We are expecting for the majority of the showers/thunderstorms to move through Wednesday afternoon into Wednesday night. A scattered shower or two will be possible earlier in the day, but the majority will hold off until later in the day, with rain most likely after 4pm and well into the nighttime hours.

NAM model displays showers beginning by Wednesday afternoon with rain continuing into the overnight hours. Showers will begin to move out sometime on Thursday. (TropicalTidbits)
For those with afternoon/evening Halloween plans, I would have the rain plan ready to go. Bring the umbrella if you are planning to go outside and rain boots would be advised. However, there are a couple more complicating factors...

2. How much rain are we talking?
Pretty much everyone will see rainfall on Wednesday, but amounts will likely vary depending where the heaviest bands of precipitation move through. Generally speaking, anywhere from an inch to potentially even three inches will be possible. Locally higher amounts could be possible as well. 

WPC shows the Mid-South potentially receiving some of the highest rainfall amounts Wednesday through early Thursday morning (NOAA/WPC)
While widespread severe weather is not expected (more on this later), heavy rainfall could become an issue on Wednesday evening. The Weather Prediction Center has included us in their "slight" risk for excessive rainfall for Wednesday. Essentially, this highlights our area for having a lot of rainfall over a short amount of time, which could lead to some ponding of water and localized flooding issues. This will be something to keep an eye on as we get closer to Wednesday evening. but that will make for some VERY wet children and chaperones if this pans out!

WPC has included much of the Mid-South in a slight risk for excessive rainfall on Wednesday (NOAA/WPC)

3. Thunderstorms too? Could any be severe?
Thunderstorms will certainly be possible, especially Wednesday evening, as the main line pushes through the area. In general, heavy rain and lightning appear to be the main concerns, but an occasional strong wind gust can't be completely ruled out. At this time, there does not appear to be a widespread severe weather threat. The Storm Prediction Center keeps the severe threat to our southwest, with only a "general thunder" risk over our area. But that still means a chance of thunder and lightning, and we definitely wouldn't want any of you becoming a lightning rod for Halloween!

SPC keeps the main severe weather threat area to our southwest with Memphis and the majority of the Mid-South only included in the general thunderstorm risk. (NOAA/SPC)
4. How about the temperatures?
Assuming the rain and thunder forecast becomes a bit more favorable, will it be cold, or sweaty? Temps will generally be in the lower 70s/upper 60s through the early evening hours before dipping into the mid 60s through the remainder of the evening. The persistent showers will likely make it feel a bit cooler than this throughout the evening. 


5. A lot of wind too?
As discussed in the previous section, winds will become fairly gusty on Wednesday and into Wednesday evening. Winds will remain from the southwest around 10 to 15 mph with gusts upwards of 25 mph. Having a way to secure any Halloween decorations and/or a hat to go with your costume would be advised. 

6. Tell it to me straight. Are you confident all this will occur?
We are confident that it is going to rain on Wednesday night unfortunately. Umbrellas would be advised if you are planning to embrace the rain. What we are "less" confident about would be thunderstorms and their severity. This is something to keep an eye on over the next few days, but at this time heavy rain, lightning, and a couple of strong wind gusts appear to be the main concerns. Honestly, it's not really looking that great. The hope is that it is all delayed a couple hours and maybe some early candy-grabbing can take place!


Thursday and Beyond

We will begin to shift back into a cooler temperature and hopefully somewhat dry pattern starting on Thursday. Leftover showers from Wednesday's frontal passage could remain Thursday morning, but should begin to clear out by the afternoon. Enough moisture Friday into the weekend causing scattered showers to remain possible, but coverage should not be widespread and I expect most weekend activities to be quite pleasant actually. Highs look to stay in the 60s through the weekend with overnight lows in the 40s.


Caroline MacDonald
MWN Meteorologist

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Saturday, October 27, 2018

An awesome fall weekend, but Halloween could be ghoulish..

We have a great weekend ahead! This is what fall feels like!


In the wake of rain and dreariness the past couple of days, skies have cleared out nicely this morning and high pressure will be moving by to our north, resulting in a fantastic weekend if you have outdoor plans. Highs today rise into the mid 60s following a crisp autumn morning. Sunday will be even better as wind shifts to the south briefly, helping to push temperatures into the mid 70s by afternoon. A dry, cloud-less cold front is expected mid-day which will turn those winds around to the northwest, but won't have an effect on temperatures. Expect a decent breeze all day.


The pleasant trend continues as we start the week with sunny skies Monday and slightly cooler temperatures behind Sunday's front, but still eclipsing the 70° mark. On Tuesday, south wind picks up again with high clouds increasing as temperatures push well into the 70s, with an outside shot at a few locations seeing 80°! The increase in clouds may be the only thing that keeps most of us from seeing a temperature that starts with an '8' for the first time in nearly three weeks.

Unfortunately, the wettest system in some time looks like it will choose Wednesday, Halloween Day, to move across the region. There will also be some decent upper level support with the approaching cold front, so some thunderstorms are also expected. It's too early to know if there could be some strong storms, but the NWS has signaled the possibility, with low confidence. Rainfall amounts on Wednesday could easily eclipse an inch and a couple of inches is not out of the question. If you have the opportunity to try out those costumes this weekend at a local fall festival, we strongly recommend it!

NWS-Memphis is indicating a few strong storms are possible for Halloween. Confidence for now is low (1/5). (NWS-Memphis)

The overnight run of the European model is bullish on precipitation totals for the mid-week system with perhaps 2"+ in the metro region. The development of a low pressure area along the front and potential storms will drive rainfall totals. (WxBell) 

Model trends the last few days have been varying for trick-or-treat hours Wednesday night with some solutions indicating that the rain might move through more quickly, while others paint a very ghoulish forecast that would likely preempt all but the most dedicated of sugary-treat gatherers. The latest runs of the American GFS, European, and Canadian models all indicate that the front itself could move through by the evening hours, but lots of things could change that forecast. Halloween fans should hope for a quick frontal passage, which could mean just light rain and cool temperatures Wednesday evening. We'll hopefully have a more solid forecast by early in the week, which we'll post to the blog. Our best guess at temperatures Wednesday evening is about 60°, plus or minus 5°.

Behind the mid-week front, trends show fairly decent improvement by Thursday into the end of the week. It will definitely be back to cooler weather, and we'll be watching for the potential of upper level systems to produce a chance of rain here or there. For now, we're sticking with cool for the period about a week from now.


Erik Proseus
MWN Meteorologist

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Follow MWN on Facebook and Twitter for routine updates and the latest info!
Complete MWN Forecast: MemphisWeather.net on the mobile web or via the MWN mobile app
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MWN is a NOAA Weather Ready Nation Ambassador Meteorologist Erik Proseus is an NWA Digital Seal Holder