Tornado Watch 2

Issued

Jan 7, 2008, 2:35 PM CST (20:35 UTC)

Expired

Jan 7, 2008, 9:00 PM CST

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Quad Cities radar (KDVN), 99 km from the middle of the area, began a volume at 20:37 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.

Two or more tornadoes

30%

One or more EF2 to EF5 tornadoes

10%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 15Jan 7, 1:47 PM CST
• Mesoscale Discussion 16Jan 7, 4:34 PM CST
• Mesoscale Discussion 20Jan 7, 7:03 PM CST

940 
WWUS20 KWNS 072036
SEL2  
SPC WW 072036
IAZ000-ILZ000-INZ000-LMZ000-080300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 2
NWS STORM PREDICTION CENTER NORMAN OK
235 PM CST MON JAN 7 2008

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

       PARTS OF SOUTHEAST IOWA
       MUCH OF NORTHERN ILLINOIS
       SMALL PART OF NORTHWEST INDIANA
       LAKE MICHIGAN

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 235 PM UNTIL 900
PM CST.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE
MILES EAST AND WEST OF A LINE FROM 20 MILES SOUTHWEST OF PEORIA
ILLINOIS TO 40 MILES NORTH NORTHWEST OF MEIGS FIELD ILLINOIS. 
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).

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 1...

DISCUSSION...WITH THE UNSEASONABLY WARM AND MDTLY UNSTABLE AIR MASS
AHEAD OF COLD FRONT ACROSS WATCH AREA AND THE VERY STRONG SHEAR
ENVIRONMENT...SEVERE THUNDERSTORMS ARE LIKELY NRN IL.  IN ADDITION
TO THE LARGE HAIL AND DAMAGING WINDS THREAT...A COUPLE OF TORNADOES
ARE LIKELY ASSOCIATED WITH THE MORE DISCRETE UPDRAFTS NOW DEVELOPING
NERN MO AND NWRN IL.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 23045.


...HALES

Tornado Watches in Illinois, 2008Tornado Watches in Indiana, 2008Tornado Watches in Iowa, 2008Every tornado watch in 2008

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.