Monday, September 17, 2012

Rainy Monday gives way to cool fall weather for much of the week

For the first time in several months, the Mid-South is seeing steady rainfall across the entire area thanks to a stationary front that has been stretched just to the south of the metro. Moisture continues to ride over this boundary, pulled north by an upper-level low over Louisiana, producing widespread light rainfall across the area.

Mid-afternoon surface analysis and radar indicating moisture riding over a stationary front south of the metro
Steady light to moderate rain will continue through the evening rush hour and into the nighttime hours until the front is finally pushed to the east by a strong cold front that will move through the metro towards morning, bringing a end to our rain chances.

Surface analysis at midnight tonight with the cold front approaching from the northwest
On Tuesday, the front will be south of the metro leaving behind cooler conditions with a more fall-like feel! The winds Tuesday will be gusty from the north, pushing the colder air into the area, with lows in the 40s expected Tuesday night outside the urban heat island.

By mid-morning Tuesday, the cold front will be to our east and clouds will begin departing
For the rest of the work week, highs will warm from the mid 70s to the lower 80s with a dry north wind keeping dew points low. Expect overnight lows in the city to drop into the 50s each night with a few more 40s likely in cooler outlying areas on Thursday morning.

Another shot of reinforcing cool air will arrive with a front on Saturday.  Very little rain is expected with this front due to the dry air ahead of it behind tonight's cold front, but it will drop highs back into the 70s next weekend.  With the Mid-South transitioning to a more fall-like pattern, we have likely seen the end of our 90 degree days for the year. View the detailed MWN Forecast here.

--Patrick Luckett, MWN Intern

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