783 
FXUS64 KMEG 242020
AFDMEG

Area Forecast Discussion
National Weather Service Memphis TN
320 PM CDT Sat Jul 24 2021

.DISCUSSION...

A HOT afternoon for the Mid-South with current temperatures in the
upper 80s to near 90. Scattered storms can be seen on radar with 
lightning as the main threat. Expect heavy downpours as well 
inside thunderstorms. Expect showers to diminish by this evening. 

Patchy fog is expected again late tonight, still some areas of 
haze in place. Really just a rinse and repeat of today and 
yesterday. Tonight lows will be in the mid to upper 70s. As for 
tomorrow, temperatures will be the main concern. Highs will be 
low 90s but heat indices could approach 107. Thus a Heat Advisory
will be in effect tomorrow afternoon.

Through the extended forecast high pressure over the Plains will 
begin to build and strengthen. In conjunction a ridge will extend
to our east. This will continue our summertime pattern. 
Convection should be limited throughout the week with the 
potential for a stray shower or two. Any development will be short
lived. 

As for temperatures, expect a slow warming trend with 
humidity levels rising. Highs will begin to approach the upper 
90s by the end of the week, looks like mid 90s for the most part. 
The warmest days will be Wednesday and Thursday with that 
strengthening ridge. Thursday and Friday have the potential to be
some of the hottest days of the year. Stay tuned.

SWB


&&

.AVIATION...
18Z TAFs

Similar to the past several days, agitated cumulus had developed
by 17Z. GOES Daytime Microphysics imagery showed cloud top ice 
and developing lightning potential in a few isolated towering 
cumulus over northeast MS. Proximity to TUP was sufficient to 
warrant a VCTS mention. 

Outside of north MS, deep convection less organized and persistent,
under ridging aloft.

PWB

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...Heat Advisory until 7 PM CDT this evening for Crittenden-Lee AR-
     Phillips-St. Francis.

     Heat Advisory from 10 AM to 7 PM CDT Sunday for Clay-Craighead-
     Crittenden-Cross-Greene-Lee AR-Mississippi-Phillips-
     Poinsett-St. Francis.

MO...Heat Advisory from 10 AM to 7 PM CDT Sunday for Dunklin-Pemiscot.

MS...Heat Advisory until 7 PM CDT this evening for Coahoma-DeSoto-
     Panola-Quitman-Tallahatchie-Tate-Tunica.

     Heat Advisory from 10 AM to 7 PM CDT Sunday for Coahoma-DeSoto-
     Panola-Quitman-Tallahatchie-Tate-Tunica-Yalobusha.

TN...Heat Advisory until 7 PM CDT this evening for Shelby.

     Heat Advisory from 10 AM to 7 PM CDT Sunday for Dyer-Lake-
     Lauderdale-Obion-Shelby-Tipton.

&&

$$