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Ahead of the cf not on.

66mph gusts at Hume

Um..that's what I and most people do at the beach

Can we call this an official bow echo now? I am in Fairfax and ready to take it on the chin

That outflow boundary racing across Montgomery County is going to lay the tracks for something wicked further east.

Looks - not good here in Aldie

maybe you should've went to the beach.

I sit under an umbrella so as long as it’s warm I’m good

Got my first pds alert ever

Can’t recall the last PDS STW here? Maybe not even the downbursts 2 years ago?

Ouch time BULLETIN - EAS ACTIVATION REQUESTED Severe Thunderstorm Warning National Weather Service Baltimore MD/Washington DC 337 PM EDT Thu Jun 19 2025 The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... Southeastern Loudoun County in northern Virginia... Northwestern Fairfax County in northern Virginia... North central Fauquier County in northern Virginia... Northwestern Prince William County in northern Virginia... * Until 400 PM EDT. * At 336 PM EDT, a severe thunderstorm was located near Middleburg, or 9 miles southwest of Brambleton, moving east at 50 mph. THIS IS A DESTRUCTIVE STORM FOR ALDIE, ARCOLA, DULLES INTERNATONAL AIRPORT, STERLING.... HAZARD...80 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable damage to trees and power lines. Your life is at significant risk if outdoors. In addition to some trees falling into homes, wind damage is possible to roofs, sheds, open garages, and mobile homes. * Locations impacted include... Reston, South Riding, Herndon, Broadlands, Brambleton, Dulles International Airport, Ashburn, Sterling, Chantilly, Countryside, Arcola, Aldie, Halfway, and Sterling Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is an EXTREMELY DANGEROUS SITUATION with tornado like wind speeds expected. Mobile homes and high profile vehicles are especially susceptible to winds of this magnitude and may be overturned. For your protection move to an interior room on the lowest floor of a building. This storm has the potential to cause serious injury and significant property damage. Damaging wind, and continuous cloud to ground lightning are occurring with this storm. Move indoors immediately. Lightning is one of nature`s leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3887 7776 3894 7778 3906 7742 3891 7734 TIME...MOT...LOC 1936Z 255DEG 42KT 3892 7768 THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...OBSERVED MAX WIND GUST...80 MPH

Yeah 6.5 C/KM is respectable. Of course steep lapse rates aren't a requirement for severe weather, they are when you're talking about the potential for widespread and high end severe weather but you can still get severe with weak lapse rates, its just more very localized and typically not high end.

Storm split, northern one fizzled out over me in Dumont. Southern one was the winner. Just drove through. Lots if thunder.

do we think there is actually a second round? Hoping evening pool isn’t in jeopardy - though late afternoon seems screwed

That's basically what the hrrr advertised this morning but we're about an hour ahead of schedule The hrrr is definitely showing alot more storm development along the cf an some of them look quite robust.

Did you hit 100 in July 1995?

Looking at radar looks like storms move in around 5pm

There are zero clouds here and yet we're under a severe thunderstorm warning until 4 pm lol

and I'm sure lapse rates aren't a huge deal TBH, 6C or 6.5C/km very doable 90/70ish. But you'd need slightly more dynamics, forcing, or shear. probably two of those three, to offset not having that bouyancy. Stronger forcing would have at least organized some of this stuff a bit more. Not great timing at all.

But it wasn't in 1966 either and that was our driest year on record, why was NYC cooler? I just think Queens and Nassau (both north and south shore) are hotter than Manhattan on an offshore wind because a westerly wind comes off Hudson River

Headed toward DC metro within the hour

I don't think that first line will expand north quickly enough for the Skook. I'm going to have to rely on, hopefully, some subsequent line(s) later.