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July 12-15, 2014 Severe Weather Threat


Chicago WX

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Well that line that was in NW IL certainly crapped the bed as it crossed I-39. Right around the time the watch was issued.

 

Very dark to the north of me...I am wondering if the power is out in DeKalb. Wife noticed a sudden change in the lights on the horizon as we were watching the news.

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Fun little chase today considering it's mid-July.  No tornadoes, but decent structure and a brief funnel.

 

Initially targeted Marshalltown Iowa after the HRRR insisted on something blowing up near that area with the morning runs.  Ended up stopping around Toledo/Tama Iowa and watched things for awhile.  Finally things started to pop, but off to the southeast of where I was.  As I approached the cell west of Iowa City it developed a nice couplet, and then a decent hook on radar.  I followed the meso for quite some time near I-80 west of Iowa city, staying just inside the hook between the hook rain and the meso.  The thing really cranked at times, but it refused to put down a 'nader. 

 

Followed the storm east of Iowa City, and it finally threw out a brief funnel between Lone Tree and West Liberty.  After that the storm became fairly messy, and called it a day. 

 

Learned a few lessons on what not to do with the new camera, but overall the pics turned out okay.  Met up with some other local chasers which was cool.

 

291km5g.jpg

2ywsf9u.jpg

mhvbzn.jpg

vrwk78.jpg

35m4c2g.jpg

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Fun little chase today considering it's mid-July.  No tornadoes, but decent structure and a brief funnel.

 

Initially targeted Marshalltown Iowa after the HRRR insisted on something blowing up near that area with the morning runs.  Ended up stopping around Toledo/Tama Iowa and watched things for awhile.  Finally things started to pop, but off to the southeast of where I was.  As I approached the cell west of Iowa City it developed a nice couplet, and then a decent hook on radar.  I followed the meso for quite some time near I-80 west of Iowa city, staying just inside the hook between the hook rain and the meso.  The thing really cranked at times, but it refused to put down a 'nader. 

 

Followed the storm east of Iowa City, and it finally threw out a brief funnel between Lone Tree and West Liberty.  After that the storm became fairly messy, and called it a day. 

 

Learned a few lessons on what not to do with the new camera, but overall the pics turned out okay.  Met up with some other local chasers which was cool.

 

291km5g.jpg

2ywsf9u.jpg

mhvbzn.jpg

vrwk78.jpg

35m4c2g.jpg

 

 

Nice, love the ground level pic

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I'm on the S side--had to have been a tornado. Pics to come

 

Definitely would like to see some. I'll be in that area tomorrow.

 

Noticed a few medium sized limbs knocked down along the state line this morning.

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Kenosha was ruled straight line wind damage

 


While radar indicated rotational signatures aloft, the storm survey team found no evidence of damage caused by rotational winds at the surface. It was concluded that all the damage was caused by straight-line winds, ranging between 80 and 100 mph.

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RELIMINARY LOCAL STORM REPORT  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
110 PM CDT SUN JUL 13 2014  
   
.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON
 
   
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.
 
 
..REMARKS..  
 
0945 PM TSTM WND DMG 4 N ALEDO 41.26N 90.75W  
07/12/2014 MERCER IL PUBLIC  
 
NARROW TORNADO-LIKE DAMAGE PATH NOTED THROUGH CORNFIELDS  
EXTENDING FROM NORTH OF ALEDO AIRPORT EAST TO NORTH OF  
MATHERVILLE. ALSO REPORTED TREE SNAPPED OFF HALF WAY UP  
ON FARM ALONG RIDGE ROAD. FORMER TRAINED SPOTTER. TIME  
ESTIMATED BETWEEN 930 AND 945 PM. DELAYED REPORT.  

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Tomorrow could be a sneaky day for severe weather.

 

If enough CAPE develops, we could have one of those fast moving, low-topped convective squall lines develop, bringing a damaging wind threat tomorrow afternoon/evening.

 

The latest NAM and the GEM in particular hint at this. 

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Tomorrow could be a sneaky day for severe weather.

 

If enough CAPE develops, we could have one of those fast moving, low-topped convective squall lines develop, bringing a damaging wind threat tomorrow afternoon/evening.

 

The latest NAM and the GEM in particular hint at this. 

 

I've noticed the same thing. If we can get that front to slow a little, we've got a chance at some isolated severe.

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Kenosha was ruled straight line wind damage

It's so hard to believe-the damage follows such a path over a pretty good distance. My wife and I -sister as well because she lives about a block away-were upset that not even a watch was issued. Someone dropped the ball BIG time.

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It's so hard to believe-the damage follows such a path over a pretty good distance. My wife and I -sister as well because she lives about a block away-were upset that not even a watch was issued. Someone dropped the ball BIG time.

 

Yeah I was thinking that this morning. Kenosha and Racine County should have had a warning last night!

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RELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE QUAD CITIES IA IL

110 PM CDT SUN JUL 13 2014

.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON

.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.

..REMARKS..

0945 PM TSTM WND DMG 4 N ALEDO 41.26N 90.75W

07/12/2014 MERCER IL PUBLIC

NARROW TORNADO-LIKE DAMAGE PATH NOTED THROUGH CORNFIELDS

EXTENDING FROM NORTH OF ALEDO AIRPORT EAST TO NORTH OF

MATHERVILLE. ALSO REPORTED TREE SNAPPED OFF HALF WAY UP

ON FARM ALONG RIDGE ROAD. FORMER TRAINED SPOTTER. TIME

ESTIMATED BETWEEN 930 AND 945 PM. DELAYED REPORT.

Right where the couplet was

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PUBLIC INFORMATION STATEMENT  

NATIONAL WEATHER SERVICE QUAD CITIES IA IL  

305 PM CDT MON JUL 14 2014  

   

..NWS DAMAGE SURVEY FOR 07/12/14 TORNADO EVENT  

 

   

TORNADO 1  

 

RATING: EF-0  

ESTIMATED PEAK WIND: 75 MPH  

PATH LENGTH /STATUTE/: 0.33 MILES  

PATH WIDTH /MAXIMUM/: 50 YARDS  

FATALITIES: 0  

INJURIES: 0  

 

START DATE: JUL 12 2014  

START TIME: 920 PM CDT  

START LOCATION: 4 MILES N ALEDO / MERCER COUNTY / IL  

START LAT/LON: 41.2591 / -90.7367  

 

END DATE: JUL 12 2014  

END TIME: 921 PM CDT  

END LOCATION: 4 MILES N ALEDO / MERCER COUNTY / IL  

END LAT/LON: 41.2604 / -90.7305  

 

SURVEY SUMMARY: DAMAGE PRIMARILY TO CORN CROPS.  

   

TORNADO 2  

 

RATING: EF-1  

ESTIMATED PEAK WIND: 105 MPH  

PATH LENGTH /STATUTE/: 3.6 MILES  

PATH WIDTH /MAXIMUM/: 100 YARDS  

FATALITIES: 0  

INJURIES: 0  

 

START DATE: JUL 12 2014  

START TIME: 930 PM CDT  

START LOCATION: 3 MILES WNW MATHERVILLE / MERCER COUNTY / IL  

START LAT/LON: 41.2674 / -90.6664  

 

END DATE: JUL 12 2014  

END TIME: 940 PM CDT  

END LOCATION: 1 MILE NE MATHERVILLE / MERCER COUNTY / IL  

END LAT/LON: 41.2731 / -90.5956  

 

SURVEY SUMMARY: DAMAGE ALONG RIDGE ROAD MAINLY TO TREES...CROPS...AND POWER  

POLES.  

   

TORNADO 3  

 

RATING: EF-1  

ESTIMATED PEAK WIND: 100 MPH  

PATH LENGTH /STATUTE/: 2.75 MILES  

PATH WIDTH /MAXIMUM/: 50 YARDS  

FATALITIES: 0  

INJURIES: 0  

 

START DATE: JUL 12 2014  

START TIME: 946 PM CDT  

START LOCATION: 4.25 MILES SE MATHERVILLE / MERCER COUNTY / IL  

START LAT/LON: 41.2387 / -90.5289  

 

END DATE: JUL 12 2014  

END TIME: 955 PM CDT  

END LOCATION: 4.4 MILES NW NEW WINDSOR / MERCER COUNTY / IL  

END LAT/LON: 41.2588 / -90.4826  

 

SURVEY SUMMARY: DAMAGE PRIMARILY TO TREES AND CROPS.  

   

TORNADO 4  

 

RATING: EF-1  

ESTIMATED PEAK WIND: 105 MPH  

PATH LENGTH /STATUTE/: 0.7 MILES  

PATH WIDTH /MAXIMUM/: 50 YARDS  

FATALITIES: 0  

INJURIES: 0  

 

START DATE: JUL 12 2014  

START TIME: 10 PM CDT  

START LOCATION: 2.5 MILES NW ALPHA / HENRY COUNTY / IL  

START LAT/LON: 41.2141 / -90.4256  

 

END DATE: JUL 12 2014  

END TIME: 1001 PM CDT  

END LOCATION: 2.8 MILES NW ALPHA / HENRY COUNTY / IL  

END LAT/LON: 41.2185 / -90.4143  

 

SURVEY SUMMARY: DAMAGE TO CROPS AND LARGE TREES.  

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