Tornado Watch 491

Issued

Jun 17, 2004, 2:35 PM MDT (20:35 UTC)

Expired

Jun 17, 2004, 9:00 PM MDT

In force

6 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 1314Jun 17, 12:38 PM MDT
• Mesoscale Discussion 1316Jun 17, 2:01 PM MDT
• Mesoscale Discussion 1322Jun 17, 6:38 PM MDT
• Mesoscale Discussion 1324Jun 17, 8:19 PM MDT

000 
WWUS20 KWNS 172036
SEL1  
SPC WW 172035
NMZ000-OKZ000-TXZ000-180300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 491
NWS STORM PREDICTION CENTER NORMAN OK
235 PM MDT THU JUN 17 2004

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

       EASTERN NEW MEXICO
       OKLAHOMA PANHANDLE
       TEXAS PANHANDLE

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 235 PM UNTIL
900 PM MDT.

TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 135 STATUTE MILES EAST AND
WEST OF A LINE FROM 50 MILES NORTHEAST OF CLAYTON NEW MEXICO TO 45
MILES WEST OF LUBBOCK TEXAS.

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 487...WW 488...WW 489...WW
490...WW 491...

DISCUSSION...VERY UNSTABLE AIRMASS ACROSS PANHANDLE WWD TO ERN NM
MOUNTAINS.  SEVERE THUNDERSTORMS EXPECTED TO DEVELOP RAPIDLY E OF
MOUNTAINS AND OVER PANHANDLE VICINITY NW/SE BOUNDARY VICINITY AMA.
VEERING SHEAR PROFILES SUFFICIENT FOR SUPERCELLS WHICH WILL ENHANCE
SEVERE THREAT INCLUDING TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 23025.


...HALES

365,1000 333,1001 333,1045 365,1045

Tornado Watches in Texas, 2004Tornado Watches in New Mexico, 2004Tornado Watches in Oklahoma, 2004Every tornado watch in 2004

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.