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SPC MD 492

MD 0492 CONCERNING SEVERE THUNDERSTORM WATCH 128… FOR EASTERN OH…WV PANHANDLE…WESTERN PA

MD 0492 Image


Mesoscale Discussion 0492
NWS Storm Prediction Center Norman OK
0546 PM CDT Wed Apr 05 2023

Areas affected...Eastern OH...WV Panhandle...Western PA

Concerning...Severe Thunderstorm Watch 128...

Valid 052246Z - 060015Z

The severe weather threat for Severe Thunderstorm Watch 128
continues.

SUMMARY...Gusty winds will continue to be observed with convection
this evening.

DISCUSSION...Seasonally warm surface temperatures (low-mid 80s) have
contributed to very steep low-level lapse rates across the upper OH
Valley. Thermodynamic profiles continue to favor gusty downdrafts
given the 30F surface temp/dew point spreads. While SBCAPE is
somewhat marginal, strong shear and PWs in excess of 1 inch suggest
locally strong downbursts may continue into the early evening hours
before temperatures begin to cool. Some of this activity may spread
into western PA before weakening.

..Darrow.. 04/05/2023

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...PBZ...CLE...

LAT...LON   41188206 41637965 40587899 39877995 39798207 41188206 

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