726 FXUS64 KMEG 161731 AAA AFDMEGArea Forecast Discussion...UPDATED National Weather Service Memphis TN 1231 PM CDT Tue Sep 16 2025
...New AVIATION...
.KEY MESSAGES... Updated at 1222 PM CDT Tue Sep 16 2025
- Isolated afternoon showers and storms will continue into Wednesday.
- Temperatures will return to the upper 80s and lower 90s this weekend.
- Drought conditions are expected to persist or worsen due to a lack of appreciable rainfall and prolonged heat. This also raises wildland fire concerns through Wednesday.
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.DISCUSSION... (This afternoon through next Monday) Issued at 1149 AM CDT Tue Sep 16 2025
The latest HREF guidance indicates potential for isolated shower and thunderstorm development this afternoon, mainly along the TN River south towards the MS/AL state line. Any storm that does form will exist in an environment not conducive for upscale growth. Therefore, severe weather chances are limited. Instead, expect a few spotty downpours.
An upper level blocking pattern will continue to breakdown through Thursday as a low pressure system over the Carolinas retrogrades towards the Mid-South. By Friday, a secondary low located over the northern Plains will eject a shortwave towards Missouri. This system will bring increased rain chances to the Mid-South, though widespread rainfall is not anticipated. Elevated precipitation chances will exist through Saturday with storm total amounts topping out at half an inch.
The extended forecast calls for a large "bowling ball" trough developing over central CONUS by next Tuesday. Both the GFS and ECMWF vary in exact placement of this system, meaning next week`s weather remains hard to pinpoint. Stay tuned.
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.AVIATION... (18Z TAFS) Issued at 1231 PM CDT Tue Sep 16 2025
Ridging aloft will coincide with weak surface winds and VFR through the next 30 hours.
Isolated SHRA/TSRA expected again today, mainly to the east of MEM. With limited organization and coverage potential, NBM hourly thunder probabilities remain at or below below 5 percent at Midsouth TAF sites. Similar scenario expected for Wednesday, with TSRA chances insufficient to warrant a PROB30 mention at this time.
PWB
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.FIRE WEATHER... Issued at 1149 AM CDT Tue Sep 16 2025
MinRH will fall in the 30 to 40 percent range through tomorrow. Spotty thunderstorms remain possible this afternoon, though widespread precipitation is not anticipated. Expect wetting rain chances to return by the end of the week.
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.MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. &&
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PUBLIC FORECAST...PWB AVIATION...SJM
NWS MEG Office Area Forecast Discussion