Sunday, January 21, 2024

After a winter week, looking ahead at a milder, but wet week

Happy cold, but optimistic Sunday!

After a wintry week with snow, ice, and re-freezing roads, we're looking ahead at a sort-of "recovery" week on both the road and drought aspects. We've had a cold start today, but we're still on an upward path toward milder temperatures. Along that path, though, will be a very wet week.

A cold Sunday and then gradual warming early/mid week

After a(nother) #StupidCold day yesterday, today continues the trend of cold weather, but our highs stay above freezing and a ridge of high pressure keeping partly sunny skies in the area will help to improve neighborhood roads that have been struggling the past week. Sadly, lows tonight will be low enough to re-freeze areas that are wet and melted. But this leads into Monday's discussion. Southeasterly flow from the Gulf will bring in slightly warmer temps and moisture, which will lead to a few afternoon showers and a rainy night tomorrow. This will do a lot to help melt those roads that are still icy. 

Surface map for Monday at 6pm, with arrows showcasing southeasterly flow and the chance for PM showers. (NWS/WPC)

For those with concerns about freezing rain, by the time showers move to our area tomorrow, we'll be warm enough to not worry about that possibility. By Monday night, most roads should be washed out and ice-less as lows will be in the 40s and showers persist. Similar wet weather is expected for Tuesday and Wednesday with sporadic showers, but temperatures will be gradually warming each day as we return to near-normal levels (highs in the low 50s for Tuesday and near 60° for Wednesday!). The occasional thunderstorm is possible towards mid-week as upper-level disturbances bring more wet weather, but we'll be well below severe thresholds for the week. 

A continued wet pattern with some cooling for the late week

A cold front pushes through Wednesday night which will bring more scattered showers that night and Thursday. The front will lead into a gradual cooling pattern as we dip from highs near 60° on Thursday to lower highs in the 50s on Friday and Saturday. A few showers are possible on Friday, but these will not be as widespread as earlier in the week. Saturday also looks to be rainy and mild as the cold front stalls to our east. 
As the cold front stalls to our east, temps will be near-normal again towards the end of the week. Shown are Friday morning temperatures from the European ensemble. (WeatherBell) 

Thankfully, none of the rainy days this week will involve winter weather! We'll be on break this week in that regard, since temperatures will be in the 50s and near 60° for the middle part of the week and latter half. 

Flash flooding potential and looking at a dry February beginning

Now, due to each day this week featuring a fair bit of rainfall, flash flooding is the primary concern for this week. Totals by the end of the week could accumulate to 3 to 5 inches. 

From NOAA, rainfall totals for this week range from 3 to 5 inches for the metro. 

Flash flooding concerns will mainly be confined to localized, low-lying areas for us. Regardless, always remember to turn around if you see standing water, and don't drown! 

On a different note, unlike this week and the last, the beginning of February looks to be drier and warmer than average! It looks to be a nice break after this upcoming rainy week and the wintry MLK week. See below for the precipitation probability outlook. As forecasts are updated for the following week, stay tuned, and thanks for reading! 

Precipitation outlook for the end of January and beginning of February, showing odds of drier than normal weather for areas along and east of the Mississippi River. (NOAA/CPC)

Lei Naidoo
MWN Intern

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Saturday, January 20, 2024

2023 Yearly Climate Review for Memphis, TN

Climate Recap

2023 will go into the history books as the fourth warmest year on record in Memphis with near average precipitation for the year. However, those overall statistics do now tell the entire story, particularly with respect to precipitation. Below is a summary of monthly temperature and precipitation data. On average, spring and summer were near to cooler than average. However, the cool season from fall to winter was much warmer than average. This resulted in an overall annual departure from normal of +1.7 degrees. There were 16 warm weather records set in 2023 and no cool temperature records.

On the precipitation side, with the exception of a dry May, precipitation ran above to well above average. The back half of the year, though, saw that surplus disappear, resulting in severe to extreme fall and early winter drought across the metro, and exceptional drought in north MS. In 2023, NWS-Memphis issued 372 Severe Thunderstorm Warnings, 83 Tornado Warnings, and 54 Flash Flood Warnings for their 5-county coverage area over the Mid-South. 


Precipitation accumulation graphic for 2023, showing total accumulation (green) versus average. (NOAA Regional Climate Centers)


Drought conditions as of December 26, 2023


Memphis International Airport, Memphis, TN

Temperature 
Average temperature: 65.1 degrees (1.7 degrees above average) 
Average high temperature: 74.5 degrees (1.5 degrees above average) 
Average low temperature: 55.8 degrees (2.0 degrees above average) 
Warmest temperature: 102 degrees (August 25-26) 
Days that reached 100 degrees for a high: 3
Coolest temperature: 25 degrees (January 31, February 1, March 19-20) 
Days that dropped below 25 degrees for a low: 0
Heating Degrees Days: 2250 (625 below average)
Cooling Degree Days: 2426 (112 above average) 
Records set or tiedRecord highs: Feb. 22 (77), April 4 (87 - tied), August 24 (100), August 25 (102), October 24 (86), November 6 (81), November 7 (83), November 8 (84).
Record warm lows: April 4 (68 - tied), June 29 (81 - tied), July 1 (81), August 22 (80 - tied), August 23 (81), August 25 (80), August 26 (80), October 24 (69). No low temperature records were set in 2023.
Comments: January was the 11th warmest on record. February was the 9th warmest on average. December was the 16th warmest on record. December 2022-February 2023 (meteorological winter) was the 7th warmest on record (48.2 degrees). The period September 1-December 31 was the 6th warmest on record. The year 2023 was the 4th warmest on record.

Precipitation 
Yearly total: 55.48" (0.54" below average) 
Days with measurable precipitation: 113 (1.6 days above average) 
Wettest Day: 4.53" (July 21)
Snowfall: 0.2" (2.25" below average)
Records set or tied: June 16 (1.75"), July 21 (4.53").
Comments: January was the 14th wettest on record. March was the 19th wettest on record. July was the 4th wettest on record. The period September 1-December 31 was the 13th driest on record.

Miscellaneous 
Peak wind: Northwest/69 mph (July 5) 
Average wind: 7.5 mph 
Average relative humidity: 67%
Average sky cover: 52%

 Click here for a daily statistical recap for Memphis International Airport.
 

MemphisWeather.net Headquarters, Bartlett, TN

Temperature 
Average temperature: 62.9 degrees 
Average high temperature: 74.6 degrees 
Average low temperature: 53.2 degrees 
Warmest temperature: 99.9 degrees (July 1) 
Days that reached 100 degrees (rounded) for a high: 4
Coolest temperature: 22.4 degrees (December 19) 
Comments: None

Precipitation 
Yearly total: 60.34" (automated rain gauge), 58.92" (CoCoRaHS rain gauge) 
Days with measurable precipitation: 118
Wettest date: 3.78" (January 3) 
Snowfall: 0.3"
Comments: None

Miscellaneous 
Peak wind: Northwest/47 mph (June 2nd)
Average relative humidity: 73% 
Average barometric pressure: 30.03 in.
Comments: None

Click here for a daily statistical recap for Bartlett, TN.
 

MWN Forecast Accuracy

Average temperature error: 2.06 degrees 
Forecast temperatures within 2 degrees of actual: 67% 
Average dewpoint error: 2.23 degrees 
Forecast dewpoints within 2 degrees of actual: 66% 

MWN's forecasts extend out five periods (2.5 days, or roughly 60 hours). Historical accuracy statistics can be found here.

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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