Huge thunderstorm complex with possible tornadoes-Chicago area

{This is a nonprofit individual blog. Anything I link to has no connection to me, nor has approved of anything I say. As an EF5 tornado survivor, I put this weather information on-line as a public service to alert anyone who might benefit in real time. I am a trained weather spotter, so I do send info to the National Weather Service.}

A monster thunderstorm complex with bow echo front line heading toward all Chicagoland. Leading edge of this event has possible funnels spinning up. The front line may have winds over hurricane force, likely leading to widespread power outages. 7:40pmCDT 8-4-08 this post time.

Tornado warnings now into northern Cook Co.

Update Aug 5

Here is Tom Skillings analysis of this storm complex as it came into Chicagoland. You all in Chicago are lucky to have such great weather coverage. This video, naturally after a 10 sec or so commercial, shows some of the array of weather products and considerations that go into forecasting extreme weather situations such as last night.

Click on video box to start (hopefully)

Tom Skilling’s Before the Forecast

Tom Skilling's Before the Forecast

Join Tom inside the Weather Center as he prepares the forecast and tells you what you can’t see on TV.

Here from the CBS network link


CBS News

Windy City: Tornadoes Rip Through Chicago
CBS News, NY – Aug 5, 2008
The scoreboard at Wrigley Field displays a severeweather warning from the National Weather Service as strong wind and rain arrive during the sixth inning
Violent storms spawn tornadoes in Chicago area The Associated Press
National Weather Service: 4 tornadoes struck Monday Rockford Register Star
Tornadoes and Storms Ravage Chicago ToTheCenter.com
Disaster News NetworkChicago Public Radio
all 1,201 news articles »

My own Chicagoland tornado story is here; TORNADO***CHASEE

Here are some YouTube links from this event

00:44 From: toucansamurai
Views: 215
WIcked chicago thunderstorm

01:21 From: nezedge
Views: 2,724
02:11 From: Turieb

Views:

Update to this event on the Weather Underground Page below.

Local Storm Report

08/04/2008 0812 PM

Evergreen Park, Cook County.

Thunderstorm wind gust m68 mph, reported by trained spotter.

1-2 inch tree limbs down across neighborhood.

08/04/2008 0800 PM

Franklin Park, Cook County.

Thunderstorm wind damage, reported by trained spotter.

Numerous trees down on Mannheim Road between Belmont and
Addison roads.

08/04/2008 0818 PM

Lansing, Cook County.

Thunderstorm wind damage, reported by trained spotter.

Six inch tree branch down on Route 394 a half mile north
of Glenwood Dyer Road.

08/04/2008 0804 PM

Midway Airport, Cook County.

Thunderstorm wind gust M59 mph, reported by ASOS.

08/04/2008 0807 PM

Midlothian, Cook County.

Thunderstorm wind damage, reported by trained spotter.

Half dozen 18-24 inch trees snapped near 147th and
Cicero.

08/04/2008 0810 PM

2 miles NE of Tinley Park, Cook County.

Thunderstorm wind gust e70 mph, reported by trained spotter.

At 167th and Cicero.

08/04/2008 0805 PM

Franklin Park, Cook County.

Funnel cloud, reported by law enforcement.

08/04/2008 0810 PM

Midlothian, Cook County.

Thunderstorm wind gust e60.00 mph, reported by trained spotter.

Near 147th street and Cicero.

08/04/2008 0813 PM

Tinley Park, Cook County.

Flood, reported by trained spotter.

Flooded streets at 171st street and Harlem.

08/04/2008 0815 PM

Broadview, Cook County.

Thunderstorm wind damage, reported by trained spotter.

Eight to ten inch trees down on 21st two blocks north of
Roosevelt.

08/04/2008 0812 PM

Evergreen Park, Cook County.

Thunderstorm wind gust m68 mph, reported by trained spotter.

1-2 inch tree limbs down across neighborhood.

08/04/2008 0818 PM

Lansing, Cook County.

Thunderstorm wind damage, reported by trained spotter.

Six inch tree branch down on Route 394 a half mile north
of Glenwood Dyer Road.

08/04/2008 0804 PM

Midway Airport, Cook County.

Thunderstorm wind gust M59 mph, reported by ASOS.

08/04/2008 0807 PM

Midlothian, Cook County.

Thunderstorm wind damage, reported by trained spotter.

Half dozen 18-24 inch trees snapped near 147th and
Cicero.

08/04/2008 0810 PM

2 miles NE of Tinley Park, Cook County.

Thunderstorm wind gust e70 mph, reported by trained spotter.

At 167th and Cicero.

08/04/2008 0805 PM

Franklin Park, Cook County.

Funnel cloud, reported by law enforcement.

08/04/2008 0810 PM

Midlothian, Cook County.

Thunderstorm wind gust e60.00 mph, reported by trained spotter.

Near 147th street and Cicero.

08/04/2008 0813 PM

Tinley Park, Cook County.

Flood, reported by trained spotter.

Flooded streets at 171st street and Harlem.

08/04/2008 0815 PM

Broadview, Cook County.

Thunderstorm wind damage, reported by trained spotter.

Eight to ten inch trees down on 21st two blocks north of
Roosevelt.

08/04/2008 0813 PM

Tinley Park, Cook County.

Flood, reported by trained spotter.

Flooded streets at 171st street and Harlem.

08/04/2008 0815 PM

Broadview, Cook County.

Thunderstorm wind damage, reported by trained spotter.

Eight to ten inch trees down on 21st two blocks north of
Roosevelt.

08/04/2008 0810 PM

Midlothian, Cook County.

Thunderstorm wind gust e60 mph, reported by trained spotter.

Near 147th street and Cicero.

08/04/2008 0805 PM

Franklin Park, Cook County.

Funnel cloud, reported by law enforcement.

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Weather Underground Severe Weather link:

Forecasts for Illinois — Return to U.S. Severe Weather
Current Severe Weather

Tornado Warning
Sponsored by State Farm

<!–

Expires 9:00 PM EDT on August 04, 2008

–>

Statement as of 7:33 PM CDT on August 04, 2008

… A Tornado Warning remains in effect until 745 PM CDT for
northeastern Kane County…

At 728 PM… National Weather Service Doppler radar continued to
indicate a tornado. This tornado was located near Pingree Grove…
moving east at 45 mph.

The tornado will be near…
West Dundee… Sleepy Hollow… and Elgin by 740 PM…

In addition to the tornado… this storm is capable of producing
destructive straight line winds.

Lat… Lon 4215 8829 4201 8827 4202 8851 4213 8852
time… Mot… loc 0033z 258deg 39kt 4209 8838

Halbach

729 PM CDT Mon Aug 4 2008

The National Weather Service in Chicago has issued a

* Tornado Warning for…
northwestern Cook County in northeast Illinois…
northwestern DuPage County in northeast Illinois…
central Kane County in northeast Illinois…

* until 800 PM CDT…

* at 724 PM… National Weather Service radar indicated strong
rotation in a severe thunderstorm near Elburn… moving east at 53
mph.

* The tornado will be near…
Wayne… DuPage Airport… and West Chicago by 735 PM…
Bartlett… and 6 miles south of Streamwood by 740 PM…

Take cover now! If no basement is available… move to an interior
room on the lowest floor. Mobile homes and vehicles should be
abandoned for more substantial shelter. Avoid windows!

Lat… Lon 4203 8818 4186 8817 4187 8848 4202 8849
time… Mot… loc 0029z 271deg 46kt 4194 8835

Halbach

Severe Thunderstorm Warning
Sponsored by State Farm

<!–

Expires 8:45 PM EDT on August 04, 2008

–>

Statement as of 7:24 PM CDT on August 04, 2008

… A Severe Thunderstorm Warning remains in effect until 745 PM CDT
for northern Kendall… eastern Lee… DeKalb… Kane and extreme
southeastern Ogle counties…

At 724 PM… National Weather Service Doppler radar continued to
indicate a line of severe thunderstorms capable of producing nickel
size hail… and destructive winds in excess of 80 mph. These storms
were located along a line extending from Genoa to 6 miles south of
Burlington to Sugar Grove to 7 miles south of Sandwich… moving east
at 63 mph.

Severe thunderstorms will be near…
St. Charles… Oswego… North Aurora… and Montgomery by 730 PM…
Gilberts… South Elgin… and Pingree Grove by 735 PM…
Gilberts… West Dundee… and Sleepy Hollow by 740 PM…

This is an extremely dangerous and potentially life threatening
situation. Seek shelter in a basement or interior room of a sturdy
building. Stay away from windows.

Very heavy rainfall may cause localized flooding.

Lat… Lon 4214 8827 4164 8828 4164 8872 4163 8919
4192 8898 4215 8895
time… Mot… loc 0024z 287deg 55kt 4215 8863 4195 8843
4175 8844 4153 8858

Marsili/cms

2 thoughts on “Huge thunderstorm complex with possible tornadoes-Chicago area

  1. Coming in as a CA native it was hard not to stand by a window and watch the spinning rainstorm & listen to the siren…although I knew I should be downstairs in case a funnel touched down. 🙂 Yes, I ended up going in the basement as to not be stupid about it.

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