BBS:      TELESC.NET.BR
Assunto:  MESO: Nws Weather Prediction Center College Park Md
De:       COD Weather Processor
Data:     Wed, 27 May 2026 16:59:41 +0000
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AWUS01 KWNH 271659
FFGMPD
ARZ000-TXZ000-OKZ000-272258-

Mesoscale Precipitation Discussion 0260
NWS Weather Prediction Center College Park MD
1258 PM EDT Wed May 27 2026

Areas affected...portions of southern, central, eastern Oklahoma,
far north Texas, and far western Arkansas

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

Valid 271658Z - 272258Z

Summary...A convective complex over north-central Texas is
drifting northward and should spread areas of 1-2 inch/hr rain
rates into the discussion area over the next 2-4 hours.  Flash
flooding is possible with this activity.

Discussion...A focused band of convection near east Dallas metro
has gained mesoscale organization over the past hour while
drifting northward and producing 6-8 inches of rainfall (estimated
per MRMS/radar).  That convection continues to remain organized,
but has exhibited some weakening/lessening of rain rates over the
past 30 minutes.  Easterly low-level inflow and strong confluence
near the convection continues to pose a heavy rain risk in the
near term - especially in/near Sherman, McKinney, and Rockwall.

The downstream airmass feeding convection continues to be plenty
moist (1.5+ inch PW) and unstable (2000 J/kg MUCAPE), with plenty
of sunshine/destabilization noted across eastern Oklahoma and
Arkansas.  The north Texas complex was already beginning to prompt
heavier rain rates in far southern Oklahoma near Durant, and
additional convection is expected over time across the entire
discussion area given the combination of destabilization/ascent
and weak inhibition.

FFG thresholds are higher with northward extent from the Red River
into southern/central Oklahoma (around 2 inch/hr).  Flash flooding
will remain possible, but will likely be tied to areas of training
and cell mergers that can boost local rainfall totals.  This flash
flood threat will persist through at least 22Z/5p central.

Cook

...Please see https://urldefense.com/v3/__http://www.wpc.ncep.noaa.gov__;!!=
DZ3fjg!7sT6f42c4FNkoyxiNGcy0JWPUWfetRgT33hrOll18s3b1UMrfG--Y3rQu4CdMPRZoPty=
YygrexNHvG-j56b1fWs_Kwk$  for graphic product...

ATTN...WFO...FWD...LZK...OUN...SHV...TSA...

ATTN...RFC...FWR...ORN...TUA...NWC...

LAT...LON   36439509 35749396 34129398 33699460 33569555=20
            33349645 33819735 35599735 36349658=20

=3D =3D =3D
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