|Mesoscale Discussion 1592|
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Mesoscale Discussion 1592
NWS Storm Prediction Center Norman OK
0301 PM CDT Mon Jul 25 2022
Areas affected...Virginia into the Delmarva region
Concerning...Severe Thunderstorm Watch 503...
Valid 252001Z - 252200Z
The severe weather threat for Severe Thunderstorm Watch 503
SUMMARY...The potential for damaging winds and sporadic hail
continues across WW 503. A corridor of higher wind damaging
potential may emerge across eastern Virginia and Maryland.
DISCUSSION...Over the past hour, thunderstorms emerging from the
central/southern Appalachians have intensified and begun to produce
isolated damaging winds with an occasional report of severe
hail/measured severe wind gusts. Most convection has consolidated
into a broken line from the Washington D.C. region southward into
southern VA, but a few isolated cells are beginning to develop ahead
of the line from eastern VA into eastern PA/NJ. Although regional
VWPs and ACARs soundings show minimal change in the kinematic
environment over the past couple of hours, the thermodynamic
environment continues to improve with MLCAPE increasing to 2000-2500
J/kg across the region with steepening low-level lapse rates. This
will maintain the potential for damaging/severe winds through the
remainder of the afternoon and into the evening hours.
A localized corridor of higher damaging wind potential may emerge
across northern VA into eastern VA/MD within the next 1-2 hours.
Latest KLWX imagery shows a somewhat more organized portion of the
line with a consolidated outflow. Low to mid-level winds are
oriented roughly orthogonal to this portion of the line, which
should aid in maintaining storm organization/intensity for the
near-term. Additionally, a measured severe wind gust of 67 mph was
noted with this line, further suggesting that areas ahead of this
line could see a locally higher threat for wind damage.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 37667915 38797787 39467664 39777597 39927531 39787467
39367457 38247526 37427642 37027755 36647882 36717957
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