2026 Mid-Atlantic Severe Storm General Discussion

[frd]

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 543
NWS STORM PREDICTION CENTER NORMAN OK
110 PM EDT SAT AUG 8 2026

SEVERE THUNDERSTORM WATCH 543 IS IN EFFECT UNTIL 600 PM EDT
FOR THE FOLLOWING LOCATIONS

DEC001-003-005-082200-
/O.NEW.KWNS.SV.A.0543.260808T1710Z-260808T2200Z/

DE
.    DELAWARE COUNTIES INCLUDED ARE

KENT                 NEW CASTLE          SUSSEX
$$

[vortex95]

Today's set up is almost identical to ydy.  And the SPC outlook looks very similar as well.  So multicellular clusters once again.

We do have the storms nrn areas now, but the clouds should clear out nicely behind it all for plenty of aftn heating.

And VIS currently clearly shows boundaries laid down S of the tstm area.
 

[frd]

Storms seem to be getting stronger in NE Maryland as they move East. 

[CAPE]

In the watch but this is going to be yet another miss to the north.

[AlexD1990]

6 minutes ago, CAPE said:

In the watch but this is going to be yet another miss to the north.

 

6 minutes ago, CAPE said:

In the watch but this is going to be yet another miss to the north.

Yeah doesn't seem necessary 

[CAPE]

3 minutes ago, AlexD1990 said:

 

Yeah doesn't seem necessary 

A repeat of yesterday except that was a closer miss lol. The outflow boundary didn't trigger anything and it doesnt seem to be this time either.

[yoda]

Looks like a lot of svr wind reports and a waterspout report in NE MD

[frd]

 

Machine Learning is very pumped for 8/11 and 8/12 severe potential in our area, then things get eventually drier, cooler and less humid. 

[DanTheMan]

https://www.facebook.com/share/p/191Je7oPD8/?mibextid=WC7FNe

Culpeper County sheriff with Reports of Tornado on the storm that slid just to my south earlier  

[wawarriors4]

Just got home, trees down in a lot of places in Stafford County, including our yard. Talking to neighbors it seems like it was a downburst around 4:45 PM or so on 8/8.

 

[vortex95]

Looks active Mon-Wed here.  HRRR/RRFS suggesting multiple waves of tstms and derecho potential.  Seems like there will be one in the OH Valley Tue, and the 12z RRFS is hitting that very hard.  Attached is the RRFS valid 00z Wed.  Wow.  And you have storms firing on the front WNW to ESE right into the DMV area, like a large warm advection wing seen on many derechoes.  HRRR through 48 hr seems to have the same idea.

Pattern is favorable for derechoes/long-lived bow echoes.

The issue typically is though, can an OH Valley derecho make it over the Appalachians intact?  It's hard to do.  The June 2012 did, but that was the exception.

SPC also has the region outlooked for svr DY4 (Wed).

[mappy]

Nice line of storms moving across southern PA. Can hear the thunder 

[southmdwatcher]

SPC update brings the slight risk down to the southside of DC Beltway and adds a 2% tornado risk for DC up through southeast PA/central NJ.

[toolsheds]

42 minutes ago, mappy said:

Nice line of storms moving across southern PA. Can hear the thunder 

Surprising I could hear them all the way down here by 70.

[yoda]

So are the storms currently in Ohio the ones we should be watching for this afternoon?

[Paleocene]

12z 3k NAM has a line moving thru the DC metro around 21z.