Tornado Watch 82

Issued

Mar 28, 2007, 3:14 PM CDT (20:14 UTC)

Expired

Mar 28, 2007, 11:29 PM CDT

In force

8 hr

Issued by

the Storm Prediction Center

Particularly dangerous situation

Yes

Largest hail expected

3 in

Strongest gust expected

60 kt

The Amarillo radar (KAMA), 18 km from the middle of the area, began a volume at 20:16 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

80%

One or more EF2 to EF5 tornadoes

60%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

95%

One or more hailstones of 2 inches or more

80%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 358Mar 28, 1:22 PM CDT
• Mesoscale Discussion 363Mar 28, 6:29 PM CDT
• Mesoscale Discussion 364Mar 28, 7:08 PM CDT
• Mesoscale Discussion 365Mar 28, 8:52 PM CDT
• Mesoscale Discussion 367Mar 28, 10:58 PM CDT

000
WWUS20 KWNS 282022
SEL2  
SPC WW 282022
OKZ000-TXZ000-290500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 82
NWS STORM PREDICTION CENTER NORMAN OK
315 PM CDT WED MAR 28 2007

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

       THE WESTERN OKLAHOMA PANHANDLE
       THE TEXAS PANHANDLE AND THE SOUTH PLAINS OF WEST TEXAS

EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 315 PM UNTIL MIDNIGHT CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE 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 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH OF GUYMON
OKLAHOMA TO 50 MILES SOUTH SOUTHEAST OF LUBBOCK TEXAS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU2).

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 80...WW 81...

DISCUSSION...THE LOW LEVELS CONTINUE TO MOISTEN AS BOUNDARY LAYER
DEWPOINTS OF 60-64 F SPREAD NWD/NWWD ON STRENGTHENING LOW-LEVEL
FLOW.  ALSO...SURFACE TEMPERATURES HAVE WARMED INTO THE 70S ACROSS
MUCH OF THE AREA...RESULTING IN WEAKENING CONVECTIVE INHIBITION. 
THE DRYLINE IS BECOMING BETTER DEFINED NEAR THE TX/NM BORDER...AND
SHOULD PROVIDE A FOCUS FOR CONVECTIVE INITIATION IN THE NEXT COUPLE
OF HOURS.  ALSO...A SUBTLE MID-UPPER SHORTWAVE TROUGH IS ROTATING
NEWD TOWARD W/NW TX...AND AT LEAST ISOLATED STORM DEVELOPMENT IS
POSSIBLE THIS AFTERNOON INVOF THE E CENTRAL AND SE TX PANHANDLE. 
GIVEN THE INCREASING LOW-LEVEL MOISTURE AND STRENGTHENING WIND
FIELDS IN AREA PROFILERS AND VWP/S...AS WELL AS SHORT TERM MODEL
FORECASTS...THE ENVIRONMENT WILL BECOME INCREASINGLY FAVORABLE FOR
SUPERCELLS THROUGH THE AFTERNOON/EVENING.  THE INITIAL ACTIVITY
SHOULD BE DISCRETE SUPERCELLS WITH THE POTENTIAL FOR A FEW STRONG
TORNADOES AND VERY LARGE HAIL.  BY EARLY TONIGHT...CONVECTION MAY
GROW UPSCALE INTO ONE OR MORE LINE SEGMENTS WITH MORE OF A LARGE
HAIL AND DAMAGING WIND THREAT.

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
500. MEAN STORM MOTION VECTOR 24035.


...THOMPSON

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