Tornado Watch 704

Issued

Oct 14, 2007, 3:47 PM CDT (20:47 UTC)

Expired

Oct 14, 2007, 10:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Altus AFB radar (KFDR), 88 km from the middle of the area, began a volume at 20:48 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

30%

One or more EF2 to EF5 tornadoes

10%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

40%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 2077Oct 14, 3:18 PM CDT
• Mesoscale Discussion 2079Oct 14, 5:28 PM CDT
• Mesoscale Discussion 2080Oct 14, 7:28 PM CDT

000
WWUS20 KWNS 142048
SEL4  
SPC WW 142048
OKZ000-TXZ000-150300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 704
NWS STORM PREDICTION CENTER NORMAN OK
345 PM CDT SUN OCT 14 2007

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

       PARTS OF WESTERN OKLAHOMA
       PARTS OF NORTHWEST TEXAS

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 345 PM UNTIL
1000 PM CDT.

TORNADOES...HAIL TO 2.5 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 55 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES WEST OF ENID OKLAHOMA
TO 60 MILES SOUTHWEST OF WICHITA FALLS TEXAS.  FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU4).

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...CONTINUE...WW 703...

DISCUSSION...WITH A MDT AIR MASS IN PLACE E OF DRY LINE/COLD FRONT
WRN OK AND CINH RAPIDLY WEAKENING...SEVERE THUNDERSTORMS EXPECTED TO
DEVELOP RAPIDLY WRN PORTION OF WATCH.  STRONG DEEP LAYER SHEAR AND
FORECASTED LOW LEVEL SHEAR  TO INCREASE...CONDITIONS ARE FAVORABLE
FOR SUPERCELL DEVELOPMENT.  PRIMARY THREAT WILL BE LARGE HAIL...BUT
WITH FAVORABLE LOW LCLS AND SHEAR PROFILES THERE IS A TORNADO THREAT
WITH ANY DISCRETE SUPERCELL THAT FORMS.  ACTIVITY WILL GRADUALLY
DEVELOP EWD THIS EVENING AS STORMS MOVE RAPIDLY NEWD IN STRONG
STEERING FLOW.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 22035.


...HALES

Tornado Watches in Oklahoma, 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; radar from the NEXRAD Level II archive.