Severe Weather Thread - 7/18 - 7/21/2026

[akt1985]

As far as the United States, there is currently a Severe Thunderstorm east of Rochester, New York and a Tornado Warning southeast of Johnstown, Pennsylvania.

 

[WeathermanLeprechaun]

there was a a random 1 frame cc drop in the hook for some reason.

View attachment 54171

That looks more associated with the big cluster of CC than a seperate CC drop to me. A tornado did touch down though from this supercell a few minutes after.

 

[SmokeEater]

Uh yea.... SPC very bullish for this area in the new meso discussion.

Additionally, low-level shear will
remain locally enhanced in the vicinity of a warm front across
southeast PA/southern NJ. Deep-layer shear will be supportive of
supercell structures, and the risk for tornadoes, potentially
strong, will be maximized in this area.

 

[akt1985]

Three Severe Thunderstorm Watches are out now stretching from Chicago to Central New York/Pennsylvania.

 

[Kds86z]

Tornado watch potentially?

 

[SmokeEater]

Tornado watch issued.

 

[joshoctober16]

rotating wall cloud on a live cam

 

[ThatGuy;P]

Now enhanced for day 3. Only mentions wind and isolated hail.

 

[warneagle]

We've still got a tornado watch here but we just had a strong sub-severe storm come through that I suspect used up most of our instability. still absolutely pouring with the sun out, you should see the look people up here give you when you tell them the devil's beating his wife lol

 

[joshoctober16]

looks like there is a tornado on the ground right now

 

[WeathermanLeprechaun]

View attachment 54174
Now enhanced for day 3. Only mentions wind and isolated hail.

This confused me that nothing was even mentioned about tornadoes. LLJ is fairly supportive of such. Next discussion will probably have it.

 

[Kds86z]

thankful for the storms here dropping the high of 170 plus AQI from smoke to 70.

 

[WeathermanLeprechaun]

GFS suggesting 80+ kt effective shear with near 5k SBCAPE. Volatile environment for long lived supercells, tornado threat will definitely be there but not seeing a extreme degree of low level shear to suggest anything significant (for now). Very evident all hazards threat exists for Monday. Question is capping. But I've seen QPF signals on different models in the same area of question (SW WI/NE IA @CheeselandSkies) so we'll see. Let's see what hi res models have tonight. HRRR gets into range very soon in like 3 hours.