Tornado Watch 329

Issued

May 30, 2001, 4:00 PM CDT (21:00 UTC)

Expired

May 30, 2001, 9:00 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

The Norman radar (KTLX), 150 km from the middle of the area, began a volume at 21:00 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.

000 
WWUS9 KMKC 302029
SEL9  

SEL9  
MKC WW 302024
ARZ000-OKZ000-TXZ000-310200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 329
STORM PREDICTION CENTER NORMAN OK
324 PM CDT WED MAY 30 2001

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

   SOUTHWEST ARKANSAS                           
   SOUTHERN OKLAHOMA                           
   NORTHERN TEXAS                              

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 400 PM UNTIL
900 PM CDT.

TORNADOES...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 ALONG AND 50 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 60 MILES WEST OF ARDMORE OKLAHOMA TO 20 MILES
SOUTH OF HOT SPRINGS ARKANSAS.

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 328...

DISCUSSION...AIRMASS VERY UNSTABLES S OF E/W BOUNDARY SRN OK INTO
SWRN AR...WITH CAPES IN EXCESS OF 4000 J/KG.  CONVERGENCE ALONG
BOUNDARY ALONG WITH BACK FLOW WILL ENHANCE OTHERWISE MARGINAL DEEP
LAYER SHEAR TO SUPPORT SUPERCELLS.  PRIMARY THREAT WILL BE VERY
LARGE HAIL...HOWEVER GIVEN INSTABILITY TORNADOES ARE LIKELY AS
WELL.


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 600. 
MEAN STORM MOTION VECTOR 28c020.


...HALES

;350,0980 345,0930 332,0930 333,0980;

Tornado Watches in Oklahoma, 2001Tornado Watches in Arkansas, 2001Tornado Watches in Texas, 2001Every tornado watch in 2001

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.