Severe Thunderstorm Warning until 3:15AM CDT for northern Will, southern DuPage, and and southeastern Cook Counties

Update 5:15AM CDT…

…Severe Thunderstorm Warning ends…but

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN WILL...NORTHEASTERN
KANKAKEE...SOUTHEASTERN COOK AND SOUTHERN LAKE COUNTY, INDIANA UNTIL 400 AM
CDT...

At 313 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Richton Park to near Peotone. Movement was east
at 45 mph.

Nickel to Quarter size hail will be possible with these storms.

Locations impacted include...
Tinley Park, Merrillville, Chicago Heights, Schererville, Crown
Point, New Lenox, Park Forest, Matteson, Mokena, Frankfort, St. John,
Cedar Lake, Steger, Flossmoor, Lowell, University Park, Olympia
Fields, Peotone, Lakes Of The Four Seasons and Country Club Hills.

Including the following interstates...
 I-57 between mile markers 326 and 343.
 I-80 between mile markers 148 and 150.
 Indiana I-65 between mile markers 244 and 251.

This includes...  First Midwest Bank Amphitheatre, Governors State
University, Lake County Fairgrounds, and Will County Fairgrounds.

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Update 2:28AM CDT…

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR NORTHERN WILL...SOUTHEASTERN DUPAGE AND SOUTHEASTERN COOK
COUNTIES...

At 255 AM CDT, a severe thunderstorm was located over Crestwood, or
over Alsip, moving east at 40 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Chicago, Bolingbrook, Orland Park, Tinley Park, Oak Lawn, Downers
Grove, Romeoville, Plainfield, Calumet City, Chicago Heights,
Lansing, Lockport, Westmont, Homer Glen, Blue Island, Dolton, Park
Forest, Alsip, Matteson and Mokena.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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Update 2:45AM CDT…

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR NORTHERN WILL...SOUTHERN DUPAGE AND SOUTHEASTERN COOK COUNTIES...

At 244 AM CDT, a severe thunderstorm was located over Palos Hills, or
near Worth, moving east at 35 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Chicago, Aurora, Naperville, Bolingbrook, Orland Park, Tinley Park,
Oak Lawn, Wheaton, Downers Grove, Romeoville, Plainfield, Calumet
City, Chicago Heights, Lansing, Glen Ellyn, West Chicago, Lockport,
Westmont, Homer Glen and Blue Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.
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BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Chicago/Romeoville Il
222 AM CDT MON MAR 20 2017

The National Weather Service in Chicago has issued a

* Severe Thunderstorm Warning for…
Northern Will County in northeastern Illinois…
Southern DuPage County in northeastern Illinois…
Southeastern Cook County in northeastern Illinois…

* Until 315 AM CDT

* At 221 AM CDT, a severe thunderstorm was located over Lisle, moving
east at 40 mph.

HAZARD…Quarter size hail.

SOURCE…Radar indicated.

IMPACT…Damage to vehicles is expected.

* Locations impacted include…
Chicago, Aurora, Naperville, Bolingbrook, Orland Park, Tinley Park,
Oak Lawn, Wheaton, Downers Grove, Romeoville, Plainfield, Calumet
City, Chicago Heights, Lansing, Glen Ellyn, West Chicago, Lockport,
Westmont, Homer Glen and Blue Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

For your protection move to an interior room on the lowest floor of a
building.

Current Metro Weather Radar Mosaic…