Severe Thunderstorm Warning: Northwestern Cook County, N. DuPage, Central Kane

UPDATE: The National Weather Service has extended the Severe Thunderstorm Warning to 5:00 p.m. However, the radar image appears to show that the trailing edge of storms is leaving Arlington Heights and heading east. There is a line of thunderstorms from Muskegon to Peoria that is moving east. The trailing edge is over Arlington Heights and moving away from Arlington Heights at 4:35 p.m. Monday.

An air raid siren and tornado warning siren was sounded somewhere east of Arlington Heights, but as far as we know there was no tornado warning issued for our area. A tornado may have hit McHenry County near Rockford with a report of a school bus overturned with children with minor injuries.

See The Cardinal Tornado Touchdown in Boone, Winnebago Counties Near Rockford, School Bus Tipped

See The Cardinal Weather Radar Image at Time of Tornado Touchdown Near Caledonia, Illinois Near Rockford

Northwest Central Dispatch (9-1-1 Center) received several calls inquiring about the activated warning siren, which was wailing for up and down (air raid) and then steady (tornado) The activation occurred about 4:05 p.m. Monday.


FIRST SEVERE THUNDERSTORM WARNING
UPDATE BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
349 PM CST MON NOV 22 2010

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
NORTHWESTERN COOK COUNTY…
NORTHERN DUPAGE COUNTY…
CENTRAL KANE COUNTY…

* UNTIL 415 PM CST

* AT 346 PM CST…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL…AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
ELBURN…OR 8 MILES WEST OF GENEVA…AND MOVING NORTHEAST AT 45
MPH.

* LOCATIONS IMPACTED INCLUDE…
GENEVA…ST. CHARLES…DUPAGE AIRPORT…WEST CHICAGO…ELGIN…
CAROL STREAM…ROSELLE…HOFFMAN ESTATES…SCHAUMBURG…ADDISON…
WAYNE…BARTLETT…STREAMWOOD…HANOVER PARK…MEDINAH…SOUTH
ELGIN…GLENDALE HEIGHTS…BLOOMINGDALE AND SOUTH BARRINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA

LATER UPDATE SEVERE THUNDERSTORM WARNING AT 4:32 CST
432 PM CST MON NOV 22 2010

…A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
LA SALLE…NORTHWESTERN WILL…SOUTHEASTERN KENDALL…NORTHERN
GRUNDY…DUPAGE…SOUTHEASTERN KANE…CENTRAL COOK AND SOUTHEASTERN
LAKE COUNTIES UNTIL 500 PM CST…

AT 427 PM CST…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL…AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM WILMETTE TO SENECA…MOVING EAST
AT 40 MPH.

LOCATIONS IMPACTED INCLUDE…
EVANSTON…WESTMONT…BOLINGBROOK…MORRIS…WESTCHESTER…
MAYWOOD…HINSDALE…RIVER FOREST…ROMEOVILLE…FOREST PARK…OAK
PARK…LA GRANGE…MINOOKA…BROOKFIELD…BURR RIDGE…RIVERSIDE…
LEMONT…BERWYN…LYONS AND JOLIET.

Later 4:46 PM SEVERE THUNDERSTORM WARNING UPDATE
446 PM CST MON NOV 22 2010

…A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR DUPAGE…
NORTHERN COOK AND SOUTHEASTERN LAKE COUNTIES UNTIL 500 PM CST…

AT 441 PM CST…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL…AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM MORTON GROVE TO ROMEOVILLE…
MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE…
GLENCOE…WESTCHESTER…EVANSTON…HINSDALE…MAYWOOD…RIVER
FOREST…FOREST PARK…LA GRANGE…OAK PARK…BROOKFIELD…
RIVERSIDE…BERWYN…LYONS…SUMMIT…CICERO…STICKNEY…MIDWAY
AIRPORT…MELROSE PARK…CLARENDON HILLS AND BELLWOOD.