Mesoscale Discussion 1146
NWS Storm Prediction Center Norman OK
0522 PM CDT Sun Jun 14 2026

Areas affected...Parts of the Mid Atlantic

Concerning...Severe Thunderstorm Watch 335...

Valid 142222Z - 150015Z

The severe weather threat for Severe Thunderstorm Watch 335
continues.

SUMMARY...The damaging-wind threat may increase into this evening.
Additional watch issuance is probable.

DISCUSSION...Widely scattered strong storms are ongoing early this
evening from south-central VA into western MD and eastern PA.
Moderate buoyancy resides across parts of VA/MD, within a very
warm/moist environment, while continued low-level moisture transport
may allow for some additional destabilization with time into NJ and
eastern PA. Effective shear of 30-40 kt will continue to support
potential for organized convection, and an increase in storm
coverage is expected as a midlevel shortwave trough approaches the
region from the Ohio Valley. 

Ongoing semi-discrete convection will pose a threat of damaging wind
and perhaps marginal hail, and a brief tornado cannot be ruled out.
The anticipated increase in storm coverage could lead to modest
upscale growth and one or more localized swaths of damaging wind
through the evening. Additional watch issuance is probable to the
northeast of WW 335 in response to these threats.

..Dean/Gleason.. 06/14/2026

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

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

LAT...LON   41637443 40007441 37837547 37177643 37267874 37967839
            39237784 41247674 41727642 42257591 42117514 41637443 

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