Tornado Watch 467

Issued

Jun 5, 2008, 5:50 PM CDT (22:50 UTC)

Expired

Jun 6, 2008, 1:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Particularly dangerous situation

Yes

Largest hail expected

3 in

Strongest gust expected

80 kt

The Sioux Falls radar (KFSD), 106 km from the middle of the area, began a volume at 22:49 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

90%

One or more EF2 to EF5 tornadoes

70%

Ten or more severe wind reports

95%

One or more gusts of 65 knots or more

90%

Ten or more severe hail reports

90%

One or more hailstones of 2 inches or more

80%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 1231Jun 5, 2:01 PM CDT
• Mesoscale Discussion 1232Jun 5, 3:09 PM CDT
• Mesoscale Discussion 1234Jun 5, 4:38 PM CDT
• Mesoscale Discussion 1235Jun 5, 5:10 PM CDT
• Mesoscale Discussion 1237Jun 5, 5:29 PM CDT
• Mesoscale Discussion 1238Jun 5, 6:22 PM CDT
• Mesoscale Discussion 1240Jun 5, 7:44 PM CDT

000
WWUS20 KWNS 052251
SEL7  
SPC WW 052251
IAZ000-KSZ000-MNZ000-NEZ000-SDZ000-060600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 467
NWS STORM PREDICTION CENTER NORMAN OK
550 PM CDT THU JUN 5 2008

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

       MUCH OF WESTERN AND PART OF CENTRAL IOWA
       SMALL PART OF NORTH CENTRAL KANSAS
       PARTS OF SOUTHERN MINNESOTA
       MUCH OF EASTERN NEBRASKA
       PARTS OF SOUTHEASTERN SOUTH DAKOTA

EFFECTIVE THIS THURSDAY AFTERNOON AND FRIDAY MORNING FROM 550 PM
UNTIL 100 AM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 90 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 150 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTH OF ONEILL
NEBRASKA TO 30 MILES EAST OF FORT DODGE IOWA.  FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU7).

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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 461...SEVERE THUNDERSTORM WATCH NUMBER 463. WATCH
NUMBER 461 463 WILL NOT BE IN EFFECT AFTER 550 PM CDT.
CONTINUE...WW 462...WW 464...WW 465...WW 466...

DISCUSSION...WARM FRONT MOVING NWD INTO SERN SD AND WRN MN WITH A
VERY UNSTABLE AND HIGHLY SHEARED WARM SECTOR AHEAD OF SEVERE
THUNDERSTORMS WRN PORTION OF WATCH.  WITH THE APPROACH OF THE
VIGOROUS S/WV TROUGH AND 80-100KT MID LEVEL WIND
MAX...SUPERCELLS/BOW ECHOES WILL CONTINUE TO DEVELOP AND MOVE VERY
RAPIDLY NEWD THRU THE WATCH THIS EVENING.  TORNADOS POSSIBLY STRONG
AND VERY DAMAGING WINDS CAN BE EXPECTED.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 22055.


...HALES

Tornado Watches in Iowa, 2008Tornado Watches in Nebraska, 2008Tornado Watches in South Dakota, 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.