Tornado Watch 711

Issued

Oct 17, 2007, 2:25 PM CDT (19:25 UTC)

Expired

Oct 17, 2007, 10:00 PM CDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

70 kt

The Vance AFB radar (KVNX), 87 km from the middle of the area, began a volume at 19:28 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

20%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

40%

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

90%

• Mesoscale Discussion 2093Oct 17, 12:58 PM CDT
• Mesoscale Discussion 2094Oct 17, 1:20 PM CDT
• Mesoscale Discussion 2098Oct 17, 5:44 PM CDT
• Mesoscale Discussion 2099Oct 17, 6:23 PM CDT
• Mesoscale Discussion 2101Oct 17, 8:10 PM CDT
• Mesoscale Discussion 2102Oct 17, 8:38 PM CDT

000
WWUS20 KWNS 171924
SEL1  
SPC WW 171924
KSZ000-OKZ000-180300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 711
NWS STORM PREDICTION CENTER NORMAN OK
225 PM CDT WED OCT 17 2007

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

       PARTS OF SOUTH CENTRAL KANSAS
       MUCH OF OKLAHOMA

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 225 PM UNTIL
1000 PM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 110 STATUTE
MILES EAST AND WEST OF A LINE FROM 60 MILES EAST NORTHEAST OF
MEDICINE LODGE KANSAS TO 15 MILES SOUTHWEST OF DURANT OKLAHOMA. 
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).

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 708. WATCH NUMBER 708 WILL NOT BE IN EFFECT AFTER
225 PM CDT. CONTINUE...WW 709...WW 710...

DISCUSSION...SEVERE THUNDERSTORMS EXPECTED TO REDEVELOP ALONG AND E
OF DRY LINE WRN OK. WITH STRONG SHEAR PROFILES IN PLACE AND AIR MASS
REMAINING MDTLY UNSTABLE...SUPERCELLS INCLUDING TORNADOES ARE
EXPECTED TO DEVELOP AND SPREAD EWD AHEAD OF VIGOROUS UPPER TROUGH.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 23045.


...HALES

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