Tornado Watch 751

Issued

Nov 24, 2010, 8:23 PM CST (02:23 UTC)

Expired

Nov 25, 2010, 4:00 AM CST

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Springfield radar (KSGF), 107 km from the middle of the area, began a volume at 02:23 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

20%

Ten or more severe hail reports

10%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

50%

• Mesoscale Discussion 2076Nov 24, 6:42 PM CST
• Mesoscale Discussion 2077Nov 24, 11:51 PM CST
• Mesoscale Discussion 2078Nov 25, 2:34 AM CST

918 
WWUS20 KWNS 250223
SEL1
SPC WW 250223
ARZ000-MOZ000-OKZ000-251000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 751
NWS STORM PREDICTION CENTER NORMAN OK
825 PM CST WED NOV 24 2010

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

       NORTHWEST ARKANSAS
       SOUTHERN MISSOURI
       EAST CENTRAL AND NORTHEAST OKLAHOMA

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 825 PM
UNTIL 400 AM CST.

TORNADOES...HAIL TO 1 INCH 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 NORTH NORTHWEST OF
MCALESTER OKLAHOMA TO 50 MILES SOUTHEAST OF VICHY MISSOURI.  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 750. WATCH NUMBER 750 WILL NOT BE IN EFFECT AFTER
825 PM CST.

DISCUSSION...A BAND OF OCCASIONALLY SEVERE STORMS WILL PERSIST
OVERNIGHT ALONG A PRE-FRONTAL BOUNDARY FROM NE OK INTO SRN MO.  WEAK
SURFACE-BASED INSTABILITY AND STRONG VERTICAL SHEAR WILL REMAIN
FAVORABLE FOR EMBEDDED SUPERCELLS WITH AN ATTENDANT RISK OF DAMAGING
WINDS AND A COUPLE OF TORNADOES.  CONVECTION SHOULD GRADUALLY BECOME
MORE LINEAR LATER TONIGHT AS THE COLD FRONT OVERTAKES THE
PRE-FRONTAL BAND.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 25040.


...THOMPSON

Tornado Watches in Missouri, 2010Tornado Watches in Oklahoma, 2010Tornado Watches in Arkansas, 2010Every tornado watch in 2010

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.