Subj : MESO: Nws Weather Prediction Center College Park Md
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Wed Jul 16 2025 22:55:28

AWUS01 KWNH 162255
FFGMPD
NJZ000-PAZ000-DEZ000-MDZ000-VAZ000-DCZ000-WVZ000-OHZ000-KYZ000-170445-

Mesoscale Precipitation Discussion 0712
NWS Weather Prediction Center College Park MD
654 PM EDT Wed Jul 16 2025

Areas affected...Central Appalachians and Central Mid-Atlantic

Concerning...Heavy rainfall...Flash flooding likely

Valid 162253Z - 170445Z

Summary...Scattered thunderstorms should increase in coverage
through the evening in a very unstable and high moisture
environment. Flash flooding is likely.

Discussion...Regional radar depicts a steady increase in
convective coverage over the upper Ohio Valley through the central
Mid-Atlantic. Convective training/repeating activity can be
expected to continue with westerly deep layer steering flow around
20kt. 2"/hr rates should become more common as extreme instability
of 3000-4000 J/kg and PW of 2 to 2.2" at lower elevation and 1.8"
over the central Appalachians.

Recent rains (including from today) and urbanized areas makes for
large areas with lower FFG. Flash flooding is expected through
this evening. Overnight convection is likely, so further MPDs are
possible.

Jackson.

....Please see https://urldefense.com/v3/__http://www.wpc.ncep.noaa.gov__;!!=
DZ3fjg!7GSWLT9F_i3353BWK14kdoPgUmnTClFX2wNo9wz7H23Y6h2SFvy0BQBonn0MSm9fSbt3=
9KhMxZgGSHDpSr42dKQn1HU$  for graphic product...

ATTN...WFO...AKQ...CTP...JKL...LWX...PBZ...PHI...RLX...RNK...

ATTN...RFC...ORN...RHA...TIR...NWC...

LAT...LON   41007759 40887604 39937540 39187541 38637620=20
            38347800 37727973 37098119 37428227 38598206=20
            39068184 40368100 40798001 40857932=20

=3D =3D =3D
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