Tornado Watch 862

Issued

Oct 4, 1998, 4:15 PM CDT (21:15 UTC)

Expired

Oct 4, 1998, 9:00 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

581 
WWUS9 KMKC 042043
SEL2  
MKC WW 042043
OKZ000-050200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 862
STORM PREDICTION CENTER NORMAN OK
343 PM CDT SUN OCT 4 1998

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

   CENTRAL AND SOUTHWEST OKLAHOMA                           

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 415 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 90 STATUTE MILES EAST AND WEST
OF A LINE FROM 45 MILES SOUTH SOUTHEAST OF FORT SILL OKLAHOMA TO 20
MILES NORTH NORTHWEST OF OKLAHOMA 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 860...WW 861...

DISCUSSION...THUNDERSTORMS ARE BEGINNING TO DEVELOP SWWD ALONG THE
DRYLINE OVER WRN OKLAHOMA. A FEW SEVERE STORMS...INCLUDING
SUPERCELLS ARE POSSIBLE GIVEN THE MAGNITUDE OF VERTICAL SHEAR AND
INSTABILITY.


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 550. 
MEAN STORM MOTION VECTOR 24035.


...VESCIO

340,0994 354,0992 354,0960 340,0963

Tornado Watches in Oklahoma, 1998Tornado Watches in Texas, 1998Every tornado watch in 1998

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.