Big Heat (and storms?) Week into July 4th Weekend

[Wxtrix]

MRB airport temp sensor is still down but the local wunderground sites have been 100+ yesterday and today.

currently under a warning for radar-indicated hail and 60mph winds. lots of thunder from 3 directions and lots of lightning.

[Wxtrix]

pouring, windy, constant thunder and lightning, power went off

[yoda]

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Baltimore MD/Washington DC
540 PM EDT Sat Jul 4 2026

The National Weather Service in Sterling Virginia has issued a

* Severe Thunderstorm Warning for...
  West central Charles County in southern Maryland...
  Eastern Stafford County in northern Virginia...
  West central King George County in central Virginia...
  Southeastern Prince William County in northern Virginia...

* Until 615 PM EDT.

* At 539 PM EDT, a severe thunderstorm was located near Aquia Creek,
  moving north at 20 mph.

  THIS IS A DESTRUCTIVE STORM FOR LOCATIONS NEAR STAFFORD QUANTICO
DUMFRIES AND TRIANGLE.

  HAZARD...80 mph wind gusts and half dollar size hail.

  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...
  Stafford, Quantico, Potomac Creek, Aquia Creek, Triangle, Dumfries,
  Cherry Hill, Falmouth, Passapatanzy, Stones Corner, Leeland,
  Widewater, Garrisonville, Arkendale, Spring Valley, Brooke, and
  Aquia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail, 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.

&&

LAT...LON 3833 7748 3858 7743 3855 7719 3838 7725
      3839 7725 3841 7727 3843 7726 3850 7728
      3839 7729 3838 7729 3836 7725 3828 7728
TIME...MOT...LOC 2139Z 192DEG 18KT 3836 7739

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH

$$
Manning

[aldie 22]

Kinda hard to believe but it missed me...temp down to 81 though so there's that 

[alexj7]

I’ve lived in Maryland 4 years and I swear Frederick gets hit 10x for every one storm I get in North Rockville. I’ve yet to have lightning this calendar year besides some distant rumbles. Looks like more of the same.

[MDphotog]

1 minute ago, Wxtrix said:

pouring, windy, constant thunder and lightning, power went off

Yikes, that is one heck of a train of storms for you.   

[Wxtrix]

whiteout of wind-driven rain, and the streetlights all came on. we haven’t had a storm like this in a while.

[AnEndlessMaze]

Haven’t seen any hail but the wind portion of the severe is certainly verifying. Very heavy rains and lots of lightning.

[Kay]

1 minute ago, Wxtrix said:

whiteout of wind-driven rain, and the streetlights all came on. we have had a storm like this in a while.

You're getting the goods. Looking at all that lightning on radarscope.

[Mrs.J]

2 minutes ago, Wxtrix said:

whiteout of wind-driven rain, and the streetlights all came on. we have had a storm like this in a while.

I am refusing to look at radar until it is on me. But getting a lot of thunder and my youngest said she looked at radar and there is a lot of lightning.

[EastCoast NPZ]

And a storm that misses to the north, of course.  Lightning and thunder for the past 45 minutes and not a drop of rain.

[high risk]

WPC heavy rainfall discussion suggests that experimental WoFS guidance really lights up the 95 corridor over the next few hours. 

[Wxtrix]

pea-sized hail.

and the winds shifted to the opposite direction when it began hailing so i think there was some rotation. 

[AnEndlessMaze]

Just now, Wxtrix said:

pea-sized hail.

and the winds shifted to the opposite direction when it began hailing so i think there was some rotation. 

This storm is nuts.

[Wxtrix]

10 minutes ago, MDphotog said:

Yikes, that is one heck of a train of storms for you.   

i will gladly take all the rain.

8 minutes ago, AnEndlessMaze said:

Haven’t seen any hail but the wind portion of the severe is certainly verifying. Very heavy rains and lots of lightning.

the rain power washed the front of our house.

6 minutes ago, Kay said:

You're getting the goods. Looking at all that lightning on radarscope.

just tremendous lightning—constant like an August storm.

6 minutes ago, Mrs.J said:

I am refusing to look at radar until it is on me. But getting a lot of thunder and my youngest said she looked at radar and there is a lot of lightning.

this is the first STW that has verified for my backyard in a good bit. the neighborhood chat is buzzing over it.

[Wxtrix]

1 minute ago, AnEndlessMaze said:

This storm is nuts.

i didn’t expect this. we were out earlier and im glad we got home just before it started.

[Roger Ramjet]

Large branches down in my front yard.

[yoda]

102/66 at 6pm at DCA

[CAPE]

8 minutes ago, high risk said:

WPC heavy rainfall discussion suggests that experimental WoFS guidance really lights up the 95 corridor over the next few hours. 

[WxUSAF]

8 minutes ago, high risk said:

WPC heavy rainfall discussion suggests that experimental WoFS guidance really lights up the 95 corridor over the next few hours. 

Going to develop overhead? Radar looks like shit for us

[SnowenOutThere]

My PWS in the backyard has been unable to reach 100 everyday but today. 

[yoda]

1 minute ago, WxUSAF said:

Going to develop overhead? Radar looks like shit for us

https://www.wpc.ncep.noaa.gov/metwatch/metwatch_mpd_multi.php?md=0598&yr=2026

Mesoscale Precipitation Discussion 0598
NWS Weather Prediction Center College Park MD
544 PM EDT Sat Jul 04 2026

Areas affected...Central Mid-Atlantic

Concerning...Heavy rainfall...Flash flooding possible

Valid 042144Z - 050300Z

SUMMARY...Expanding clusters of heavy showers and thunderstorms
will impact the central Mid-Atlantic region this evening,
including the I-95 corridor from central VA through Washington
D.C. and into southeast PA and central NJ. High rainfall rates up
to near 2 inches/hour will foster concerns for urban flash
flooding.

DISCUSSION...The late-afternoon GOES-E visible satellite imagery
along with radar shows expanding clusters of heavy showers and
thunderstorms expanding gradually off to the northeast across
western and central VA, with recent development also noted across
far northern VA, eastern WV and adjacent areas of west-central MD.
The activity is growing upscale as weak shortwave/MCV energy
crossing the central Appalachians ejects out into the very moist
and unstable boundary layer pooled across the central Mid-Atlantic
region.

Surface observations show an elongated trough axis aligned rather
close to the I-95 corridor from north-central VA through central
to northeast MD, and into adjacent areas of southeast PA and
central NJ. Along this boundary, MLCAPE values are as high as 2000
to 3000+ J/kg with PWs near 1.75 inches. This is a strongly
conducive thermodynamic environment for strong to severe
thunderstorms given the steep low and mid-level lapse rates, which
will also be conducive for high rainfall rates.

Regional hires models appear to be struggling somewhat with the
overall convective details and rainfall potential, but radar and
satellite trends along with recent data from the experimental WoFS
suggest a corridor of rather organized thunderstorms capable of
producing rainfall amounts of as much 2 inches per hour, with
perhaps most of this falling in as little as 30 minutes.

The overall convective threat should tend to align itself rather
close to the aforementioned surface trough and generally near the
I-95 corridor from northern VA through central and northeast MD,
and into southeast PA and central NJ going through the mid-evening
hours.

Some localized storm totals of 2 to 3 inches will be possible as
these clusters of thunderstorms advance generally northeastward
this evening, and with the high sub-hourly rainfall rate
potential, some areas of mainly urban flash flooding will be
possible.

Orrison

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

[MN Transplant]

2 minutes ago, WxUSAF said:

Going to develop overhead? Radar looks like shit for us

Nothing but some clouds and American air superiority in my backyard

[stormy]

39 minutes ago, Jrlg1181 said:

3 different showers down here 0.05 is all so far..

Good amount of rain down towards Lyndhurst with pretty good amount of limbs and a few smaller trees down..

.75" so far.  Temp. down to 70.

[pazzo83]

4 minutes ago, WxUSAF said:

Going to develop overhead? Radar looks like shit for us

yeah big ol' split showing up right now.  LOL at least we would preserve the back-to-back 84F lows.

[SnowenOutThere]

1 minute ago, MN Transplant said:

Nothing but some clouds and American air superiority in my backyard

The contrails will cause the storms. Trust the process, the patriots are in control. 

[aldie 22]

Hell of a lightning and thunder show for an hour with some serious wind 0.00"

[Wxtrix]

reports of trees down across roads starting to come in.

 

[87storms]

Judging by radar, Frederick is maintaining its status as a 2026 precip magnet. Good to see. Could have used a storm on top of me while hiking near Lake Mead earlier. Vegas heat is the real deal.

[high risk]

7 minutes ago, WxUSAF said:

Going to develop overhead? Radar looks like shit for us

Yeah, I have doubts too, but we need to let this play out.  Some initiation now in Montgomery County.   Outflow boundaries could explode in this environment.