Tornado Watch 25

Issued

Feb 3, 2012, 12:26 PM CST (18:26 UTC)

Expired

Feb 3, 2012, 8:00 PM CST

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Dallas/Ft Worth radar (KFWS), 118 km from the middle of the area, began a volume at 18:25 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

10%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

20%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 100Feb 3, 9:42 AM CST
• Mesoscale Discussion 101Feb 3, 11:59 AM CST
• Mesoscale Discussion 103Feb 3, 3:17 PM CST
• Mesoscale Discussion 104Feb 3, 5:41 PM CST
• Mesoscale Discussion 106Feb 3, 6:40 PM CST

539 
WWUS20 KWNS 031828
SEL5
SPC WW 031828
OKZ000-TXZ000-040200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 25
NWS STORM PREDICTION CENTER NORMAN OK
1230 PM CST FRI FEB 3 2012

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

       SOUTHERN OKLAHOMA
       WESTERN NORTH/NORTH CENTRAL TEXAS

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1230 PM UNTIL
800 PM CST.

TORNADOES...HAIL TO 1.5 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 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTH SOUTHEAST OF
MINERAL WELLS TEXAS TO 45 MILES NORTHWEST OF ARDMORE OKLAHOMA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU5).

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...CONVECTION HAS INITIATED ALONG THE DRYLINE AND COLD
FRONT DRYLINE INTERSECTION FROM SWRN OK INTO WRN N TX.  STORMS
SHOULD CONTINUE TO INTENSIFY AS THEY MOVE ENE INTO AN INSTABILITY
AXIS CHARACTERIZED BY MLCAPE TO 1200 J/KG AND 50-60 KTS OF 0-6KM
SHEAR.  ACTIVITY WILL LIKELY EVOLVE INTO NE-SW ORIENTED BANDS AND
CLUSTERS WITH DMGG WINDS AND HAIL.  ALTHOUGH THE O-2KM WIND FIELDS
WERE BEGINNING TO VEER OVER FAR SWRN OK...SUFFICIENT 0-1KM SHEAR WAS
NOTED ON THE TLX/PURCELL PROFILERS TO INCLUDE POSSIBILITY OF A
COUPLE TORNADOES...ESPECIALLY WITH THE MORE DISCRETE STORMS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 24030.


...RACY

Tornado Watches in Oklahoma, 2012Tornado Watches in Texas, 2012Every tornado watch in 2012

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.