Tornado Watch 442

Issued

May 30, 2003, 3:45 PM CDT (20:45 UTC)

Expired

May 30, 2003, 9:00 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

The Quad Cities radar (KDVN), 63 km from the middle of the area, began a volume at 20:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

• Mesoscale Discussion 1151May 30, 2:06 PM CDT
• Mesoscale Discussion 1152May 30, 2:08 PM CDT
• Mesoscale Discussion 1158May 30, 6:55 PM CDT

000 
WWUS20 KWNS 302044
SEL2  
SPC WW 302045
ILZ000-WIZ000-310200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 442 
NWS STORM PREDICTION CENTER NORMAN OK 
345 PM CDT FRI MAY 30 2003

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       NORTHERN AND CENTRAL ILLINOIS
       SOUTHERN WISCONSIN

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 345 PM UNTIL 900
PM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES NORTH NORTHEAST OF MADISON WISCONSIN TO 35
MILES SOUTH SOUTHWEST OF PEORIA ILLINOIS.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.


OTHER WATCH INFORMATION...CONTINUE...WW 441...


DISCUSSION...VIGOROUS UPPER TROUGH AND ASSOCIATED STRONG SURFACE LOW
DROPPING SEWD ACROSS UPR MS VALLEY . AIRMASS AHEAD OF SYSTEM IS
RAPIDLY DESTABILIZING WITH A WELL DEFINED DRY LINE/COLD FRONT MOVING
EWD ACROSS ERN IA.  SEVERE THUNDERSTORMS EXPECTED TO DEVELOP RAPIDLY
ALONG DRY LINE/COLD FRONT WITH FAVORABLE SHEAR PROFILES FOR TORNADIC
SUPERCELLS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 28040.


...HALES

433,0875 401,0884 401,0910 433,0901

Tornado Watches in Illinois, 2003Tornado Watches in Wisconsin, 2003Tornado Watches in Iowa, 2003Every tornado watch in 2003

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.