SPC MD 1570
[html]MD 1570 CONCERNING SEVERE THUNDERSTORM WATCH 492... FOR PARTS OF CENTRAL AND NORTHERN VIRGINIA INTO MARYLAND AND SOUTH-CENTRAL PENNSYLVANIA
Mesoscale Discussion 1570
NWS Storm Prediction Center Norman OK
0604 PM CDT Sat Jul 23 2022
Areas affected...parts of central and northern Virginia into
Maryland and south-central Pennsylvania
Concerning...Severe Thunderstorm Watch 492...
Valid 232304Z - 240100Z
The severe weather threat for Severe Thunderstorm Watch 492
continues.
SUMMARY...Isolated damaging gusts or marginal hail remains possible
within and just east of the watch area for an hour or two.
DISCUSSION...Storms continue to redevelop along a long-lived outflow
boundary, periodically indicating marginal hail cores as well as
wind gust potential. Multiple observations have recently measured
wind gusts in the 30-40kt range as the line has moved out of WV.
The air mass ahead of the surging outflow remains unstable, with
MLCAPE near 1500 J/kg. While minimal convective inhibition exists,
and heating has been lost, the surging outflow may continue to
support sporadic marginally severe storms, whether hail or gusts.
Given the time of day, and lack of any larger-scale support other
than the outflow, it appears any severe risk will be isolated
through evening, and additional watches are not expected. In the
short term, local extensions may be utilized depending on storm
trends.
..Jewell.. 07/23/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...AKQ...CTP...LWX...RNK...
LAT...LON 38967809 39477777 39977760 40287743 40327708 40147670
39807657 39287658 38827676 38117714 37397785 37267842
37467881 37687892 37877895 38237856 38607829 38967809
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Source: SPC MD 1570 (http://ht**://www.spc.noaa.gov/products/md/md1570.html)
Topic: SPC MD 1570 (Read 36 times)
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