2026 Mid-Atlantic Severe Storm General Discussion

[yoda]

URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 335
   NWS Storm Prediction Center Norman OK
   415 PM EDT Sun Jun 14 2026

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     District Of Columbia
     Western and Central Maryland
     Central and Northern Virginia
     Eastern Panhandle of West Virginia
     Coastal Waters

   * Effective this Sunday afternoon and evening from 415 PM until
     1100 PM EDT.

   * Primary threats include...
     Scattered damaging wind gusts to 70 mph likely
     Isolated large hail events to 1.5 inches in diameter possible

   SUMMARY...Thunderstorm coverage is expected to increase this
   afternoon and evening within the warm, moist, and unstable
   environment in place across the region. Recent 18Z sounding at IAD
   sampled 42 kt of 0-6 km shear, which is more than sufficient for
   updraft organization. General expectation is for multiple rounds of
   occasionally severe storms, with damaging gusts as the primary
   severe hazard. Isolated instances of large hail could occur as well.

   The severe thunderstorm watch area is approximately along and 70
   statute miles east and west of a line from 25 miles northeast of
   Martinsburg WV to 40 miles southeast of Lynchburg VA. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU5).

 

[Kmlwx]

Well per the TBWI radar, the bay breeze has made it west of me here in Odenton and it continues to push west a bit. So if that will be the dividing line/focal point for severe storms vs more garden variety stuff - then a good chunk of the area will be east of that. 

[Eskimo Joe]

33 minutes ago, WxUSAF said:

2550 j/kg surface based cape on the 18z iad sounding. Seems good

Wow 

 

[yoda]

Per LWX, on the 12z KIAD sounding, PWAT was 1.05.  On the 18z, it was 1.52

[Eskimo Joe]

Hahaha Yinzer Alley go brrrrr

[Mrs.J]

So usually I have seen SKYWARN spotters activated at the bottom of the watch itself. This time they put up a special statement. Is that a new way they are doing it? Also I have the Baltimore/Washington number. Is it the same one for Sterling? 

[WVclimo]

STW for my yard until 6:15.  Storm looks good on radar and continuing to grow.

Already hearing thunder well in advance of the cell

[SnowenOutThere]

Hell of a Tornado outbreak looks to be occurring in PA. 7 active warnings right now 

[Eskimo Joe]

14 minutes ago, SnowenOutThere said:

Hell of a Tornado outbreak looks to be occurring in PA. 7 active warnings right now 

Yup. Surprised there isn't a downstream tornado watch for at least northern PA.

[yoda]

8 minutes ago, Eskimo Joe said:

Yup. Surprised there isn't a downstream tornado watch for at least northern PA.

Came out 15 minutes ago

[Kmlwx]

Minimum of activity for the DC region so far 

[yoda]

2 minutes ago, Kmlwx said:

Minimum of activity for the DC region so far 

EZF storm went severe quick

[SolidIcewx]

New MD

 

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...

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

[paxpatriot]

Second warned storm of the week here. This one was legit. Crazy gusts and small hail. Nice little show.

[H2O]

Unless it fills in, radar has huge DC split to the SW. Hard to see a good line forming in time 

[SolidIcewx]

16 minutes ago, H2O said:

Unless it fills in, radar has huge DC split to the SW. Hard to see a good line forming in time 

Weather control tech because of UFC fight

[Kmlwx]

19 minutes ago, H2O said:

Unless it fills in, radar has huge DC split to the SW. Hard to see a good line forming in time 

The cell NE of CHO might try to get into your area - not sure about me though. 

[Eskimo Joe]

Two areas of interest locally: 

1.) Bay press pressed up somewhere between US 29 and I-95 west of the bay.

2.) Looks like a decent outflow boundary settling along I-66. 

Wonder if these serve as a focus for later in the evening?

[wxmeddler]

Heck of a hail-filled updraft near LaPlata

[Eskimo Joe]

2 minutes ago, wxmeddler said:

Heck of a hail-filled updraft near LaPlata

M1.25" hail Ripley, MD according to the LSR just reported by Sterling!

[Eskimo Joe]

Some cells firing up along the western slopes of Catoctin Mts.