Tornado Watch 192

Issued

Apr 10, 2008, 4:55 PM CDT (21:55 UTC)

Expired

Apr 10, 2008, 9:51 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Des Moines radar (KDMX), 130 km from the middle of the area, began a volume at 21:57 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

40%

One or more EF2 to EF5 tornadoes

20%

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 623Apr 10, 2:03 PM CDT
• Mesoscale Discussion 626Apr 10, 6:44 PM CDT

000
WWUS20 KWNS 102155
SEL2  
SPC WW 102155
IAZ000-ILZ000-MOZ000-110400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 192
NWS STORM PREDICTION CENTER NORMAN OK
455 PM CDT THU APR 10 2008

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

       SOUTH-CENTRAL AND SOUTHEAST IOWA
       WEST-CENTRAL ILLINOIS
       NORTHERN MISSOURI

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 455 PM UNTIL
1100 PM CDT.

TORNADOES...HAIL TO 1.5 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 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 35 MILES WEST NORTHWEST OF
LAMONI IOWA TO 35 MILES EAST NORTHEAST OF QUINCY 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 190...WW 191...

DISCUSSION...STORMS DEVELOPING ACROSS WARM SECTOR ARE RAPIDLY MOVING
NEWD INTO AN INCREASINGLY SHEARED AND DESTABILIZING ENVIRONMENT
ALONG AND JUST SOUTH OF RETREATING WARM FRONT.  AS SUCH...THE
POTENTIAL WILL EXIST FOR SUPERCELLS CAPABLE OF ISOLATED TORNADOES IN
ADDITION TO LARGE HAIL AND LOCALLY DAMAGING WINDS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
400. MEAN STORM MOTION VECTOR 22040.


...MEAD/HART

Tornado Watches in Iowa, 2008Tornado Watches in Missouri, 2008Tornado Watches in Illinois, 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.