Tornado Watch 419

Issued

Jun 12, 2002, 4:00 PM CDT (21:00 UTC)

Expired

Jun 12, 2002, 9:00 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

The Vance AFB radar (KVNX), 49 km from the middle of the area, began a volume at 21:04 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 
WWUS20 KWNS 122037
SEL9  
SPC WW 122033
KSZ000-OKZ000-130200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 419
STORM PREDICTION CENTER NORMAN OK
333 PM CDT WED JUN 12 2002

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

   SOUTHERN KANSAS                             
   NORTHWEST OKLAHOMA                           

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

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 20 MILES NORTHWEST OF GAGE OKLAHOMA TO 55
MILES NORTHEAST OF PONCA CITY OKLAHOMA.

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 417...WW 418...

DISCUSSION...WITH EXTREME INSTABILITY IN PLACE AND WELL DEFINED
CONVERGENCE ALONG E/W BOUNDARY...RAPID DEVELOPMENT OF SEVERE
THUNDERSTORMS EXPECTED.  WITH VEERING SHEAR PROFILES SUPERCELLS ARE
LIKELY WITH VERY LARGE HAIL AND DAMAGING DOWNBURST WINDS. 
ADDITIONALLY ISOLATED TORNADOES WILL BE ASSOCIATED WITH SUPERCELLS.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. 
MEAN STORM MOTION VECTOR 25025.


...HALES

372,1000 380,0962 362,0962 353,1000

Tornado Watches in Oklahoma, 2002Tornado Watches in Kansas, 2002Every tornado watch in 2002

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.