Tornado Watch 36

Issued

Feb 28, 2007, 5:07 PM CST (23:07 UTC)

Expired

Mar 1, 2007, 1:36 AM CST

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Wichita radar (KICT), 115 km from the middle of the area, began a volume at 23:08 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

60%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 218Feb 28, 3:05 PM CST
• Mesoscale Discussion 221Feb 28, 7:46 PM CST
• Mesoscale Discussion 222Feb 28, 9:48 PM CST
• Mesoscale Discussion 224Feb 28, 10:57 PM CST

000
WWUS20 KWNS 282311
SEL6  
SPC WW 282311
KSZ000-OKZ000-010800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 36
NWS STORM PREDICTION CENTER NORMAN OK
510 PM CST WED FEB 28 2007

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

       SOUTHEAST AND EAST CENTRAL KANSAS
       NORTHEAST OKLAHOMA

EFFECTIVE THIS WEDNESDAY AFTERNOON AND THURSDAY MORNING FROM 510
PM UNTIL 200 AM 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 50 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHEAST OF
EMPORIA KANSAS TO 20 MILES SOUTH OF TULSA OKLAHOMA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU6).

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.

DISCUSSION...DEEPENING CUMULUS ALONG RETREATING MOISTURE BOUNDARY IN
SE KS SUGGESTS THAT CONVECTIVE INITIATION IS LIKELY IN THE NEXT 1-2
HOURS...WITH MORE ISOLATED STORM DEVELOPMENT ALSO POSSIBLE SWD ALONG
THE DRYLINE INTO NE OK.  THE ENVIRONMENT INITIALLY WILL SUPPORT A
THREAT FOR LARGE HAIL AND ISOLATED DAMAGING WINDS WITH SUPERCELLS. 
BY LATE EVENING AND OVERNIGHT...THE THREAT FOR TORNADOES WILL
INCREASE IN CONJUNCTION WITH ADDITIONAL LOW-LEVEL MOISTENING AND
STRENGTHENING VERTICAL SHEAR IN ADVANCE OF A DEEPENING SURFACE LOW
AND STRONG MID-UPPER JET STREAK.

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 24035.


...THOMPSON

Tornado Watches in Kansas, 2007Tornado Watches in Oklahoma, 2007Every tornado watch in 2007

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.