BBS:      TELESC.NET.BR
Assunto:  MESO: Nws Weather Prediction Center College Park Md
De:       COD Weather Processor
Data:     Wed, 27 May 2026 20:43:35 +0000
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AWUS01 KWNH 272043
FFGMPD
VAZ000-NCZ000-280230-

Mesoscale Precipitation Discussion 0262
NWS Weather Prediction Center College Park MD
442 PM EDT Wed May 27 2026

Areas affected...south-central to southeastern VA into far
northern NC

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

Valid 272040Z - 280230Z

SUMMARY...Flash flooding will be possible over south-central to
southeastern VA into far northern NC through ~02Z. Rain rates of
1-2 in/hr and total rainfall of 1 to 3 inches are expected, with
possible overlap with locations that have picked up heavy rain
over the past couple of days.

DISCUSSION...GOES-E visible satellite imagery at 2030Z showed a
southward sinking outflow boundary from the southern DelMarVa
Peninsula into central VA and a second outflow boundary from
south-central VA into northwestern NC. The environment south of
the northern outflow was estimated to contain 1000-2000 J/kg
MLCAPE and PWs near 2 inches per 20Z SPC mesoanalysis data. As the
northern outflow boundary continues to advance toward the south
into the evening, additional convective development is expected
along/ahead of the boundary with cells containing a mean west to
east motion at 20-30 kt. Due to the similarly oriented low to
mid-level flow and the boundary orientation, some brief training
of heavy rain will be possible over the next 3-6 hours, with
clearing occurring from north to south over time.

Portions of southern/southeastern VA have received 3 to 6+ inches
of rain over the past 48 hours and have limited capacity for
additional infiltration of water. Therefore, hourly rainfall of 1
to 2 inches and the potential for isolated totals near 3 inches
could support areas of flash flooding through 02Z to 03Z.

Otto

...Please see https://urldefense.com/v3/__http://www.wpc.ncep.noaa.gov__;!!=
DZ3fjg!64TL9NajwaPmIhCwxLrlTX0gRhZ9C9--NwtEw9gRsuGJf2vclY7WDfZHD47F1XLCAgTF=
1lTxXfMamkO_dzvK5qGIqIM$  for graphic product...

ATTN...WFO...AKQ...LWX...RAH...RNK...

ATTN...RFC...ALR...RHA...TIR...NWC...

LAT...LON   37907655 37537567 37037545 36507571 36417673=20
            36437775 36437906 36528003 37148017 37757815=20
=20=20=20=20=20=20=20=20=20=20=20=20

=3D =3D =3D
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