Tornado Watch 106

Issued

Apr 17, 2002, 6:00 PM CDT (23:00 UTC)

Expired

Apr 17, 2002, 11:00 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

The Altus AFB radar (KFDR), 89 km from the middle of the area, began a volume at 23:02 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 172238
SEL6  
SPC WW 172234
OKZ000-TXZ000-180400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 106
STORM PREDICTION CENTER NORMAN OK
534 PM CDT WED APR 17 2002

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

WESTERN OKLAHOMA                           
NORTHWEST TEXAS AND THE EASTERN TEXAS PANHANDLE                   

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 600 PM UNTIL
1100 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 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 80 MILES SOUTH SOUTHEAST OF CHILDRESS TEXAS TO 60
MILES NORTH NORTHWEST OF CLINTON 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 104...WW 105...

DISCUSSION...TOWERING CUMULUS ARE DEVELOPING IN SEVERAL CLUSTERS
ALONG THE N-S ORIENTED DRYLINE FROM ABOUT 70 MILES S OF CDS NWD
ACROSS THE ERN TX PANHANDLE.  STRONG INSTABILITY IS PRESENT ALONG
AND E OF THE DRYLINE...AS WELL AS SUFFICIENT DEEP LAYER SHEAR FOR
SUPERCELLS.  THE INTITIAL SEVERE THREATS SHOULD BE VERY LARGE HAIL
AND A FEW STRONG GUSTS.  LATER THIS EVENING...EXPECT LOW-LEVEL
WINDS TO CONTINUE BACKING AND SPREADING RICH MOISTURE WWD... WHICH
WILL TEND TO INCREASE THE THREAT OF A FEW TORNADOES.

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 24030.


...THOMPSON

360,0982 332,0983 332,1005 360,1005

WWUS20 KWNS 172238
SEL6  
SPC WW 172234
OKZ000-TXZ000-180400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 106
STORM PREDICTION CENTER NORMAN OK
534 PM CDT WED APR 17 2002

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

WESTERN OKLAHOMA                           
NORTHWEST TEXAS AND THE EASTERN TEXAS PANHANDLE                   

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 600 PM UNTIL
1100 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 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 80 MILES SOUTH SOUTHEAST OF CHILDRESS TEXAS TO 60
MILES NORTH NORTHWEST OF CLINTON 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 104...WW 105...

DISCUSSION...TOWERING CUMULUS ARE DEVELOPING IN SEVERAL CLUSTERS
ALONG THE N-S ORIENTED DRYLINE FROM ABOUT 70 MILES S OF CDS NWD
ACROSS THE ERN TX PANHANDLE.  STRONG INSTABILITY IS PRESENT ALONG
AND E OF THE DRYLINE...AS WELL AS SUFFICIENT DEEP LAYER SHEAR FOR
SUPERCELLS.  THE INTITIAL SEVERE THREATS SHOULD BE VERY LARGE HAIL
AND A FEW STRONG GUSTS.  LATER THIS EVENING...EXPECT LOW-LEVEL
WINDS TO CONTINUE BACKING AND SPREADING RICH MOISTURE WWD... WHICH
WILL TEND TO INCREASE THE THREAT OF A FEW TORNADOES.

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 24030.


...THOMPSON

360,0982 332,0983 332,1005 360,1005

Tornado Watches in Texas, 2002Tornado Watches in Oklahoma, 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.