ACUS11 KWNS 150126
SWOMCD
SPC MCD 150125=20
NJZ000-NYZ000-PAZ000-MDZ000-DEZ000-150330-

Mesoscale Discussion 1147
NWS Storm Prediction Center Norman OK
0825 PM CDT Sun Jun 14 2026

Areas affected...Parts of the Mid Atlantic

Concerning...Severe Thunderstorm Watch 335...337...

Valid 150125Z - 150330Z

The severe weather threat for Severe Thunderstorm Watch 335, 337
continues.

SUMMARY...A threat for strong to locally severe storms will continue
into late evening. Damaging wind, isolated hail, and a brief tornado
all remain possible.

DISCUSSION...An increase in semi-discrete storms has recently been
noted from southeast PA into MD and northern VA, with a supercell
ongoing as of 0115Z south of Lancaster, PA. The 00Z IAD sounding
depicted 45 kt of effective shear and MLCAPE in excess of 1000 J/kg,
which will continue to support supercell potential with the
strongest storms through the evening. Damaging wind, isolated hail,
and perhaps a brief tornado could accompany any sustained supercell.
This developing cluster of storms may eventually spread into parts
of DE and NJ with a continued severe risk.=20

Farther west, a line of storms associated with a cold front is
moving eastward across central PA, with occasional wind-damage
reports and observed gusts of generally 50-60 mph. This line may
continue to pose a threat of wind damage in the short term as it
moves eastward, though some continued weakening is expected with
time later through the evening.

..Dean.. 06/15/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5g-aZr5_cf2hwFBBNer8MKXQTg2StmtjKcwrAerbWy-GhYQTQ977p9Sd_mRX_RCXcY9XiuO7s= _AzpTO88rFZxBNry6E$ for graphic product...

ATTN...WFO...OKX...ALY...PHI...BGM...AKQ...CTP...LWX...

LAT...LON 40687422 38097549 38657612 39047701 39727785 40097764
40507742 40827714 41397672 42117596 42107531 42127468
41617425 40687422=20

MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


=3D =3D =3D
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