Subj : MESO: Nws Weather Prediction Center College Park Md
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Mon May 26 2025 03:59:25

AWUS01 KWNH 260359
FFGMPD
GAZ000-ALZ000-260758-

Mesoscale Precipitation Discussion 0318
NWS Weather Prediction Center College Park MD
1158 PM EDT Sun May 25 2025

Areas affected...east-central Alabama and west-central Georgia

Concerning...Heavy rainfall...Flash flooding possible

Valid 260358Z - 260758Z

Summary...Spotty/isolated flash flood potential exists for another
2-4 hours or so.

Discussion...Latest radar/observations depict a focused axis of
convection very near an old outflow extending from near Gadsden,
AL to just south of Atlanta, GA.  These cells were moving
relatively slowly while ingesting sufficient moisture and
instability (1.5-1.6 inch PW/1000 J/kg SBCAPE) to produce spots of
1-2.5 inch/hr rain rates (estimated per MRMS).  These cells were
also located along and ahead of an eastward-moving MCS over
central Alabama.  At the current rate of motion, the central AL
MCS should overtake the preceding convection and reduce rainfall
potential substantially after it's moved through (in the 04-08Z
timeframe - latest with eastward extent).  Until this happens,
rain rates should approach FFG thresholds on at least an isolated
basis, and local amounts of 3-3.5 inches cannot be completely
ruled out.

Cook

....Please see https://urldefense.com/v3/__http://www.wpc.ncep.noaa.gov__;!!=
DZ3fjg!6S4bFJHSPQWZ3wikte43bjEYHYtq1mdRThnnFQdLZsYqRHq7XP_kfpREswfrJDqtahTG=
Fo5IKS1fLCTMW0UO45Mft7o$  for graphic product...

ATTN...WFO...BMX...FFC...

ATTN...RFC...ALR...ORN...NWC...

LAT...LON   34178605 33938485 33558380 32708374 32488537=20
            33098676=20

=3D =3D =3D
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