Tornado Watch 246

Issued

May 6, 2007, 1:59 PM CDT (18:59 UTC)

Expired

May 6, 2007, 10:00 PM CDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

60 kt

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

70%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 723May 6, 11:41 AM CDT
• Mesoscale Discussion 726May 6, 1:47 PM CDT
• Mesoscale Discussion 729May 6, 5:38 PM CDT
• Mesoscale Discussion 734May 6, 8:55 PM CDT
• Mesoscale Discussion 735May 6, 9:26 PM CDT

000
WWUS20 KWNS 061901
SEL6  
SPC WW 061901
KSZ000-OKZ000-TXZ000-070300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 246
NWS STORM PREDICTION CENTER NORMAN OK
200 PM CDT SUN MAY 6 2007

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

       PARTS OF SOUTHERN KANSAS
       LARGE PART OF WESTERN AND CENTRAL OKLAHOMA
       PARTS OF NORTHWEST TEXAS INCLUDING EASTERN PANHANDLE

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 200 PM UNTIL
1000 PM CDT.

TORNADOES...HAIL TO 3 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 120 STATUTE
MILES EAST AND WEST OF A LINE FROM 70 MILES SOUTHWEST OF WICHITA
FALLS TEXAS TO 30 MILES NORTH NORTHWEST OF WICHITA KANSAS.  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.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 243. WATCH NUMBER 243 WILL NOT BE IN EFFECT AFTER
200 PM CDT. CONTINUE...WW 244...WW 245...

DISCUSSION...SURFACE BOUNDARY IN PROCESS OF RETREATING TOWARD ERN TX
PANHANDLE AND THEN ACROSS SRN KS.  WITH AIR MASS VERY UNSTABLE AND
UNCAPPED...POTENTIAL FOR SUPERCELLS EXPECTED TO RAPIDLY INCREASE
VICINITY BOUNDARY.  ALONG WITH VERY LARGE HAIL...TORNADOES WILL BE
POSSIBLE WITH SUPERCELLS GIVEN THE FAVORABLE LOW LEVEL SHEAR AND
HIGH CAPE.  ACTIVITY WILL DEVELOP EWD ACROSS OK BY EVENING.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
600. MEAN STORM MOTION VECTOR 22025.


...HALES

Tornado Watches in Oklahoma, 2007Tornado Watches in Kansas, 2007Tornado Watches in Texas, 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.