516
FXUS64 KMEG 222356
AFDMEG

Area Forecast Discussion
National Weather Service Memphis TN
656 PM CDT Wed May 22 2024

...New AVIATION...

.SYNOPSIS...
Issued at 359 PM CDT Wed May 22 2024

An unsettled period of weather will continue across the Mid-South
tonight through next Tuesday. This will bring a potential for
showers and thunderstorms each day across the Mid-South. Some of
these thunderstorms have the potential to become strong to severe
each day through at least Sunday night. Drier weather will begin
to return by next Tuesday.

&&

.DISCUSSION...
(This evening through next Tuesday)
Issued at 359 PM CDT Wed May 22 2024

An active afternoon across the Mid-South as a moderate to strong
instability combined with 40-50 kts shear, and favorable upper-
level divergence to produce severe thunderstorms and heavy
rainfall across the Mid-South. Latest surface analysis places a
surface low near Duluth, MN with a cold front extending south into
Indiana, the Missouri Bootheel, and back into Western Arkansas and
the Red River Valley. As of 3 PM CDT, temperatures are in the
upper 70s to lower 80s even where convective activity has occurred
over the past 2 to 3 hours.

Short-term models including the latest CAMs indicate the potential
for strong to severe thunderstorms to continue across portions of
the Mid-South, mainly for areas in West Tennessee near the
Tennessee River and most of north Mississippi except for areas
along and east of a line from Tutwiler to Aberdeen, Ms. Otherwise,
there may be a bit of a minimum in convective coverage this
evening as the MCS departs.

Subtle shortwave troughs embedded in nearly zonal flow aloft will
move across the Lower Mississippi Valley into the upcoming
Memorial Day weekend. Moderate to strong instability combined
with 0-6 km Bulk Shear values between 30-40 kts suggest the
potential for strong to severe thunderstorms Thursday especially
during peak heating and again during the day on Friday. Damaging
winds and large hail will remain the primary severe weather
threats along with a potential for heavy rainfall.

Long-term model trends suggest the potential for a better threat
of severe thunderstorms Sunday afternoon into Sunday night as a
stronger mid-level trough moves through the region. High pressure
will bring a gradual end to rain chances on Tuesday.

CJC

&&

.AVIATION...
(00Z TAFS)
Issued at 644 PM CDT Wed May 22 2024

Mainly VFR conditions through the period. In the short term, a
complex of SHRAs and TSRAs will move near MEM over the next couple
of hours. This complex may hold together and affect TUP through
06Z. Thereafter, a lull in convective activity is expected at all
sites for several hours overnight, with redevelopment near
sunrise. Most SHRAs and TSRAs should be out of the area by early
afternoon. TUP may see additional convection late in the TAF
period, but confidence remains low at this time.

AC3

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...None.
MO...None.
MS...None.
TN...None.
&&

$$

PUBLIC FORECAST...CJC
AVIATION...AC3