ACUS11 KWNS 262256

SWOMCD

SPC MCD 262255 

NJZ000-PAZ000-MDZ000-DEZ000-VAZ000-270030-



Mesoscale Discussion 1464

NWS Storm Prediction Center Norman OK

0555 PM CDT Thu Jun 26 2025



Areas affected...portions of southeastern Pennsylvania to the

DelMarVa and southern New Jersey



Concerning...Severe Thunderstorm Watch 464...



Valid 262255Z - 270030Z



The severe weather threat for Severe Thunderstorm Watch 464

continues.



SUMMARY...Damaging gusts will remain possible across the Mid

Atlantic this evening.



DISCUSSION...Across northeastern portions of WW464, a cluster of

thunderstorms has gradually taken on a more linear appearance early

this evening. The environment ahead of these storms is largely

pristine with moderate to large buoyancy and modestly steep

low-level lapse rates amid weak vertical shear. This will continue

to support strong updrafts with this convection through the early

evening hours. Additional storm development/intensification into a

loose QLCS appears likely as storms propagate east/southeastward

along a remnant coastal boundary. Locally greater forcing along this

boundary, and a strengthening cold pool should allow for increased

forward  propagation of the entire linear cluster. This suggests a

continued damaging gust threat is likely, particularly from southern

NJ, to eastern MD/PA and DE this evening.



..Lyons.. 06/26/2025



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



ATTN...WFO...PHI...AKQ...CTP...LWX...



LAT...LON   39667675 40077642 40337565 39927492 39507447 39067474

            37947534 38077621 38507651 38937679 39367685 39667675 



MOST PROBABLE PEAK WIND GUST...55-70 MPH



