463 FXUS64 KMEG 241111 AFDMEGArea Forecast Discussion National Weather Service Memphis TN 611 AM CDT Wed Sep 24 2025
...New AVIATION...
.KEY MESSAGES... Updated at 608 AM CDT Wed Sep 24 2025
- Another round of strong to severe storms is forecast for this afternoon, mainly along and east of the Mississippi River, ahead of an approaching cold front.
- A cold front will bring drier and much cooler air for the end of the week, with pleasant conditions expected for the weekend.
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.DISCUSSION... (Tonight through next Tuesday) Issued at 1123 PM CDT Tue Sep 23 2025
The latest surface analysis places a weak surface low near the AR/OK border with several remnant outflow boundaries scattered amongst the Mid-South. Radar analysis shows a weak MCV driving the ongoing convection along and south of I-40. Severity of storms should remain nil and heavy rainfall will be the star of the show during the overnight hours. Luckily, the Mid-South is deep in drought conditions, but torrential rain rates will just lead to quick runoff. The main concern of flooding will be in urbanized areas or areas of poor drainage.
This MCV and aforementioned low will bring yet another messy, shower and thunderstorm pattern for Wednesday as it begins a northeast traverse. Saturated soils and abundant cloud coverage should minimize severe weather threats north of I-40. However, south of I-40 and ahead of a cold front, HREF guidance continues to advertise moderate instability developing by early to mid afternoon across most of north Mississippi and portions of west Tennessee near the TN River. Forecast soundings show only up to 20 knots of deep layer shear, which would limit overall storm organization. Nonetheless, a Marginal Risk (1/5) for strong to severe thunderstorms remains in effect for tomorrow afternoon with damaging winds as the main threat.
The cold front will sweep through the entire Mid-South by Thursday morning with scattered post-frontal showers during most of the day. Conditions will dry out Friday as the upper-level trough pushes to our east. The weekend will feature dry conditions and highs in the mid 80s and lows in the upper 50s and lower 60s.
DNM
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.AVIATION... (12Z TAFS) Issued at 608 AM CDT Wed Sep 24 2025
Additional showers and thunderstorms are expected today as a highly amplified longwave trough approaches the Mississippi River. Showers and the threat for thunderstorms should diminish across most of the region before midnight followed by a period of IFR to LIFR cigs. A cold front will move across the airspace tomorrow morning resulting in north winds before midday. IFR or LIFR cigs will likely linger through midday.
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.FIRE WEATHER... Issued at 1123 PM CDT Tue Sep 23 2025
Widespread wetting rainfall chances will maximize today as a cold front sweeps across the area. Lingering scattered rain will occur on Thursday as an upper level low slowly lifts out of the area. Dry and warm conditions will return this weekend with minimum relative humidity above 40% each day.
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.MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. &&
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PUBLIC FORECAST...DNM AVIATION...JDS
NWS MEG Office Area Forecast Discussion