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Late June Heavy Rain/Severe Threats


Hoosier
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Totally nailed the winds on the Dyer tornado :P (I estimated 70-80 when I was there)

 

Public Information Statement
National Weather Service Chicago IL
506 PM CDT Sun Jun 27 2021 /606 PM EDT Sun Jun 27 2021/

...NWS Damage Survey for 06/25/2021 and 06/26/2021 Confirms Four
Tornadoes...

NWS storm surveys confirmed four tornadoes from severe
thunderstorms on June 25th and 26th.

June 25th:
1. Danforth: EF-1 (estimated peak winds of 95 mph)

June 26th:
1. Dyer/Schererville: EF-0 (estimated peak winds of 75 mph)
2. Crete: EF-0 (estimated peak winds of 70 mph)
3. Chatsworth: EF-0 (estimated peak winds of 80 mph)

More details on path length and width are forthcoming.

$$

Kluber
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Some big totals in the past few days in central IL

 

...McLean County...
2 ESE Bloomington            10.57 in   Cocorahs
1 E Heyworth                 10.08 in   Cocorahs
4 SSW Central IL Airport     9.96 in    Cocorahs
2 NNE Shirley                9.54 in    Cocorahs
2 WSW Bloomington            9.26 in    Cocorahs
2 SW Bloomington             9.25 in    Cocorahs
1 SE Normal                  8.98 in    Cocorahs
2 SSW Central IL Airport     8.84 in    Cocorahs
Heyworth                     8.60 in    Cocorahs
2 SE Normal                  8.34 in    Cocorahs
2 E Normal                   8.09 in    Cocorahs
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23 minutes ago, Hoosier said:

Flash Flood Watch for about the southeast 2/3 of LOT.

Just realized I posted in the wrong thread. Probably setting up for some 1-3" totals across the metro, especially near/south of 88/290. Starting to get initiation ahead of the central IL MCV now. There are a couple of boundaries to focus on, the lake-enhanced front which is now stalling in southern Cook through Lake Co, IN, and another more elevated boundary across northern Cook left behind by the AM showers.

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KLOT update

UPDATE...
1157 AM CDT

Showers and thunderstorms have begun to expand in coverage across
wester central into north-central Illinois. In collaboration with
DVN, we have expanded the Flash Flood Watch to the remaining
forecast area. Latest radar mosaic shows the corridor of
developing activity to be better focused toward the western
sections of the area. Morning DVN and ILX soundings show
precipitable water values of greater than 1.8 inches with latest
RAP analysis shifting this a bit westward. While far northern and
northwestern areas have seen less rainfall in recent days, the
efficient precip production and potential for multiple rounds of
showers and storms thought that expanding the watch was prudent.
Do not think that the threat has changed much for the original
watch area as high water already exists and showers and
thunderstorms are beginning to develop.

MDB
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1 hour ago, purduewx80 said:

Just realized I posted in the wrong thread. Probably setting up for some 1-3" totals across the metro, especially near/south of 88/290. Starting to get initiation ahead of the central IL MCV now. There are a couple of boundaries to focus on, the lake-enhanced front which is now stalling in southern Cook through Lake Co, IN, and another more elevated boundary across northern Cook left behind by the AM showers.

Said surface boundary is quite plainly visible

chi_sfc.gif.89aec4d7e7e90b6112323ef3e5a3cbcb.gif

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On 6/27/2021 at 6:22 PM, Hoosier said:

 

Public Information Statement
National Weather Service Chicago IL
506 PM CDT Sun Jun 27 2021 /606 PM EDT Sun Jun 27 2021/

...NWS Damage Survey for 06/25/2021 and 06/26/2021 Confirms Four
Tornadoes...

NWS storm surveys confirmed four tornadoes from severe
thunderstorms on June 25th and 26th.

June 25th:
1. Danforth: EF-1 (estimated peak winds of 95 mph)

June 26th:
1. Dyer/Schererville: EF-0 (estimated peak winds of 75 mph)
2. Crete: EF-0 (estimated peak winds of 70 mph)
3. Chatsworth: EF-0 (estimated peak winds of 80 mph)

More details on path length and width are forthcoming.

$$

Kluber

LOT released more detailed info on these.  Interestingly, the Dyer/Schererville, IN tornado occurred first (and was unwarned), which means that the tornado warned cell that we were watching that produced the tornado in Crete, IL was not the one that produced in IN.  

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1 hour ago, Hoosier said:

LOT released more detailed info on these.  Interestingly, the Dyer/Schererville, IN tornado occurred first (and was unwarned), which means that the tornado warned cell that we were watching that produced the tornado in Crete, IL was not the one that produced in IN.  

I was keeping an eye on that one thinking it would go warned and never did. Even had a screenshot trying to figure distance.

 

D84B58E1-CFAF-45B6-B8D2-C5BD1CE6F144.jpeg

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34 minutes ago, btcs31 said:

I was keeping an eye on that one thinking it would go warned and never did. Even had a screenshot trying to figure distance.

 

D84B58E1-CFAF-45B6-B8D2-C5BD1CE6F144.jpeg

So here's something interesting.  I know our county's tornado history like the back of my hand (have read through all the old Storm Data entries for each one as well as old newspaper articles, etc.) and between 1950-2018, there were no recorded tornadoes in Dyer.  There have been 2 since 2019.  That is hard to believe, so possible/likely that things were missed in the past considering that the technology/detection was not that good in early decades and that Dyer used to be a lot smaller than it is now.

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25 minutes ago, CheeselandSkies said:

Well congrats to those of you in IL/IN/MI who got in on some big action in this pattern, but as for me...

5ev2bv.jpg

Caught a nice one driving to the grocery store tonight in MN. Sorry, bud.

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13 hours ago, CheeselandSkies said:

Well congrats to those of you in IL/IN/MI who got in on some big action in this pattern, but as for me...

5ev2bv.jpg

I guess we're in the same miserable club together.

Had a torrential downpour yesterday afternoon at around 2pm, on June 28th, and wasn't a rumble of thunder nor a lightning strike to be found. But in other news, I read that San Antonio observed ( I believe it was) Texas' largest hailstone ever this season.

Apparently, this just isn't our year for strong/severe t'storms..

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3 hours ago, Powerball said:

I guess we're in the same miserable club together.

Had a torrential downpour yesterday afternoon at around 2pm, on June 28th, and wasn't a rumble of thunder nor a lightning strike to be found. But in other news, I read that San Antonio observed ( I believe it was) Texas' largest hailstone ever this season.

Apparently, this just isn't our year for strong/severe t'storms..

Screenshot_20210629-152927_Facebook.thumb.jpg.60015a424ae5be9642b8df09309ce29a.jpg

 

FB_IMG_1624998536845.thumb.jpg.c1cae312eeda0a38bb15c8dd2d3076ea.jpg

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