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SPC MD 1651

SPC MD 1651

[html]MD 1651 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR EASTERN PA INTO SOUTHERN NEW ENGLAND
       
MD 1651 Image


Mesoscale Discussion 1651
NWS Storm Prediction Center Norman OK
0227 PM CDT Thu Aug 04 2022

Areas affected...Eastern PA into southern New England

Concerning...Severe potential...Watch unlikely

Valid 041927Z - 042130Z

Probability of Watch Issuance...20 percent

SUMMARY...The threat for primarily isolated damaging gusts will
spread northeastward this afternoon.

DISCUSSION...Sporadic damaging winds and observed gusts up to 40-45
mph have been noted recently when convection spreading northeastward
across northeast PA into central/southern NY. Deep-layer shear
remains weak across the region, but unidirectional southwesterly
flow will continue to support occasionally vigorous redevelopment
along a northeastward-propagating cold pool. Moderate downstream
instability (MLCAPE of 1500-2000 J/kg) and steep low-level lapse
rates will continue to support a threat of localized damaging wind
gusts as storms spread toward southern New England through the
afternoon. With the threat still expected to be relatively
disorganized, watch issuance remains unlikely.

..Dean/Grams.. 08/04/2022

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

ATTN...WFO...GYX...BOX...BTV...OKX...ALY...PHI...BGM...CTP...

LAT...LON   43067470 43447409 43567356 43607288 43487249 42997245
            42627273 42337327 41667438 41197506 40517590 40047653
            39867703 39907755 40167770 41067696 41617636 42247569
            42707524 43067470


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Source: SPC MD 1651 (http://ht**://www.spc.noaa.gov/products/md/md1651.html)