Severe Thunderstorm Watch 155

Issued

Apr 27, 2002, 2:00 AM CDT (07:00 UTC)

Expired

Apr 27, 2002, 7:00 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

The Altus AFB radar (KFDR), 134 km from the middle of the area, began a volume at 07:04 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 270649
SEL5  
SPC WW 270643
OKZ000-TXZ000-271200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 155
STORM PREDICTION CENTER NORMAN OK
143 AM CDT SAT APR 27 2002

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

WESTERN OKLAHOMA                           
NORTHWEST TEXAS AND THE EASTERN TEXAS PANHANDLE                   
 
EFFECTIVE THIS SATURDAY MORNING FROM 200 AM UNTIL 700 AM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 65 STATUTE MILES
EAST AND WEST OF A LINE FROM 110 MILES SOUTH SOUTHWEST OF CHILDRESS
TEXAS TO 65 MILES NORTHEAST OF GAGE OKLAHOMA.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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.  SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES
SEVERE THUNDERSTORM WATCH NUMBER 154.  WATCH NUMBER 154 WILL NOT BE
IN EFFECT AFTER 200 AM CDT.

DISCUSSION...CLUSTER OF ELEVATED THUNDERSTORMS WILL SPREAD QUICKLY
NEWD FROM W TX TOWARD WRN OK THROUGH THE EARLY MORNING HOURS. 
MODERATE ELEVATED INSTABILITY...A 40-50 KT LOW-LEVEL JET...AND A
STRONG MID LEVEL TROUGH MOVING NEWD FROM ERN NM WILL SUPPORT A
CONTINUED THREAT OF LARGE HAIL WITH THE STRONGEST STORMS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.  MEAN STORM
MOTION VECTOR 22040.


...THOMPSON

365,0974 325,0995 325,1020 365,1000

Severe Thunderstorm Watches in Texas, 2002Severe Thunderstorm Watches in Oklahoma, 2002Every severe thunderstorm 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.