Severe WX Midwest Derecho - Aug 10, 2020

[TornadoFan]

Moderate risk incoming for Iowa and Illinois for a potental derecho.

Storm Prediction Center Mesoscale Discussion 1450

Severe weather, tornado, thunderstorm, fire weather, storm report, tornado watch, severe thunderstorm watch, mesoscale discussion, convective outlook products from the Storm Prediction Center.

www.spc.noaa.gov

 

[South AL Wx]

PDS Severe Thunderstorm Watch issued:



URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 426
NWS Storm Prediction Center Norman OK
1125 AM CDT Mon Aug 10 2020

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Eastern Iowa
Northern Illinois
Far northwest Indiana
Far southern Wisconsin
Lake Michigan

* Effective this Monday morning and evening from 1125 AM until
700 PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

* Primary threats include...
Widespread damaging winds and scattered significant gusts to 100
mph likely
Isolated large hail events to 1.5 inches in diameter possible
A couple tornadoes possible

SUMMARY...A derecho will rapidly progress across eastern Iowa and
northern Illinois this afternoon. Widespread severe wind gusts, some
of which should reach 80-100 mph are anticipated along the track of
the bow. Brief tornadoes are also possible.

 

[warneagle]

Second PDS Severe Thunderstorm watch this year already.

 

[warneagle]

Thread of damage photos from near Des Moines. Wind gusts of 90-100 mph reported.

 

[Kory]

This could’ve went high risk and verified across parts of Iowa.

 

[TornadoFan]

Midway, Iowa reported a 112 MPH gust.

 

[akt1985]

This derecho is making a beeline to Chicago. I hope widespread power outages doesn’t make the looting worse.

 

[warneagle]

KLOT is about to take a direct hit, hope it doesn't go down.

 

[warneagle]

Almost 8 million people in this severe warning, yikes.

 

[warneagle]

NWS Des Moines reports 420,000 people without power in Iowa alone (for reference, a little over 3 million people live in Iowa).

 

[WesL]

From my friend in the area. Trying to get her husband Ryan to join us.

 

[Evan]

Secondary impacts in places like Chicago will be interesting to monitor.

 

[Kory]

 

[seasonsofweather]

insane storm was actually at the dentist when it rolled through so they relocated me during my filling to the basement
on a walk this evening took some damage pics from around my neighborhood

 

[akt1985]

Any chance this MCS makes it to north Alabama later tonight?

 

[MichelleH]

Awesome light show going on to our northeast right now!

 

[WesL]

I used to tell people to clear their decks and patios before storm systems move through. Had someone, who is no longer a friend, tell me that it was a waste of time to do so.

 

[Equus]

This will definitely put 'derecho' back in the national dialogue like the 2012 Mid-Atlantic one did. Ridiculous levels of damage there.

 

[warneagle]

Still about 100,000 people without power in Iowa.

 

[CheeselandSkies]

Quite possibly the most extreme thunderstorm wind damage seen in the region since May 30, 1998 (at least on so widespread a scale).