Subj : MESO: Nws Weather Prediction Center College Park Md
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sat Jul 08 2023 23:18:31

AWUS01 KWNH 082318
FFGMPD
ALZ000-MSZ000-LAZ000-ARZ000-TXZ000-090400-

Mesoscale Precipitation Discussion 0667
NWS Weather Prediction Center College Park MD
717 PM EDT Sat Jul 08 2023

Areas affected...Northeastern Texas...Northern LA...Central
MS...Central AL

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

Valid 082316Z - 090400Z

SUMMARY...Numerous thunderstorms are expected to continue over the
next few hours from the ArkLaTex region eastward to central
Mississippi and southwestern Alabama.  Rainfall rates of 1-2
inches in 30 minutes can be expected with the strongest cells, and
this may lead to some instances of flooding.

DISCUSSION...There will be two main areas of focus across the
outlook area.  The first will be an ongoing complex of storms that
developed over the past few hours near the Red River, and this
will continue to slowly settle towards the southeast across
portions of northeast Texas and northwestern Louisiana.  The
second area of concern will be across south-central portions of
Mississippi and into adjacent portions of Alabama where a slow
moving MCS is nearly anchored in place with multiple instances of
back-building cells noted on recent Doppler radar scans.  There
are also some slow moving cells farther south closer to the
Interstate 20 corridor that could eventually merge with the main
complex to the north.=20

Parts of this region had significant rainfall over the past couple
of days, with the majority of this happening on Friday where a
broken swath of 2-4 inch rainfall totals was observed from the
greater Shreveport area towards Natchez, and those areas will be
slightly more prone to flooding.  The ARW2 and the latest HRRR
appear to have the best overall depiction compared to ongoing
radar trends, and this guidance suggests the potential for patchy
rainfall maxima of 2-4 inches by 11 pm local time, with much of
this falling within a two hour period in any given location.=20

Hamrick

....Please see https://urldefense.com/v3/__http://www.wpc.ncep.noaa.gov__;!!=
DZ3fjg!_rwJvng4eLpzulxtbih9gNY2WU-jkg-Gx8OlChxfH2igWz97PsxB-LxNF1IbKR1rVXff=
UwnC7LVLeK4rTy--R-vaGtQ$  for graphic product...

ATTN...WFO...BMX...FWD...JAN...LCH...MOB...SHV...

ATTN...RFC...LMRFC...SERFC...WGRFC...NWC...

LAT...LON   33368889 33068830 32608774 32028738 31658719=20
            31188755 31108810 31288882 31428988 31469106=20
            31449211 31529361 31849469 32239549 32599579=20
            32839590 33009587 33179573 33249542 33289490=20
            33229444 33049392 32799333 32649233 32749135=20
            32909055 33258972=20

=3D =3D =3D
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