2026 Mid-Atlantic Severe Storm General Discussion

[SnowenOutThere]

29 minutes ago, Kmlwx said:

Not saying it will happen, but every now and then a lower parameter day will surprise and out perform the prior day. Always fun because it just goes to prove microscale stuff sometimes just says F known science and does its own thing!

I want to clarify, it’s not that parameters are even bad. It’s more so a “meh” environment compared to the powderkeg yesterday was. Do agree that outflow boundaries could help out too.   

[Eskimo Joe]

2 hours ago, Kmlwx said:

Not saying it will happen, but every now and then a lower parameter day will surprise and out perform the prior day. Always fun because it just goes to prove microscale stuff sometimes just says F known science and does its own thing!

This evening has all the hallmarks of an overperformer for a select few:

• Less of a cap at 700 mb
• Multiple remnant boundaries
• Pooling of low level moisture (dews have come back up a few degrees)
• Slightly better shear aloft per SPC meso analysis

[frd]

Interesting cell in SW De. Moving North at 15 mph.

 

Severe Weather Statement
National Weather Service Mount Holly NJ
526 PM EDT Sun Jul 5 2026

DEC001-005-052200-
/O.CON.KPHI.SV.W.0146.000000T0000Z-260705T2200Z/
Sussex DE-Kent DE-
526 PM EDT Sun Jul 5 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR NORTHWESTERN SUSSEX AND SOUTHWESTERN KENT COUNTIES...

At 526 PM EDT, a severe thunderstorm was located near Andrewsville,
or 14 miles northwest of Georgetown, moving north at 15 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is
         possible.

Locations impacted include...
Milford, Harrington, Bridgeville, Andrewsville, Greenwood, Houston,
and Farmington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3874 7547 3873 7570 3898 7573 3896 7545
TIME...MOT...LOC 2126Z 176DEG 13KT 3881 7560

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

 

 

[WxUSAF]

STW posted

[Terpeast]

Seeing outflow boundaries from the south and NE, hoping they collide over mby to give me much needed rains

[TSSN+]

Can’t buy a break around here. Missed yesterdays rain and missing everything around my by 2-3 miles. 0” here 3 miles away 1.8” in last hour lol 

[vortex95]

11 hours ago, Kmlwx said:

Really interesting storm movement yesterday too!

When you have light/weak winds 500 mb and below, chaotic storm motion is common.  Mesoscale factors such as storm rotation, outflow boundaries, and cell back-building (discrete propagation) can take front and center, so you get all sorts of odd storm motion.  This is basically what you see almost every day in the summer in the Southeast and Gulf Coast states!

We saw the same thing today, esp. w/ that svr storm W of Columbia.  Hardly moved at first and then started to drift/build S.

I attached a short loop of the W of Columbia svr storm.  Also, the CG LTG was intense w/ this storm (plot attached).

I think this storm was briefly a supercell before it gusted out.  It split as well, indicating rotation.  See the storm to its N moving NE fairly quickly?  That's a left (anticyclonic) supercell split!  You can tell b/c of it flared look NW to SE yet moving NE.  When a supercell splits, the mesocycylonic split slows down and turns more to the right, while the anticyclonic split accelerates and moves more to the left (in the Northern Hemisphere).