Tornado Watch 313

Issued

May 8, 1998, 8:00 PM CDT (01:00 UTC)

Expired

May 9, 1998, 2:00 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

The Dallas/Ft Worth radar (KFWS), 94 km from the middle of the area, began a volume at 01:04 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.

611 
WWUS9 KMKC 090027
SEL3  
MKC WW 090027
TXZ000-090700-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 313
STORM PREDICTION CENTER NORMAN OK
727 PM CDT FRI MAY 8 1998

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

   NORTHERN TEXAS                              

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 800 PM UNTIL
200 AM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 110 STATUTE MILES EAST AND WEST
OF A LINE FROM 10 MILES SOUTH SOUTHWEST OF STEPHENVILLE TEXAS TO 70
MILES NORTH OF FORT WORTH TEXAS.

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...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 310.  WATCH NUMBER 310 WILL NOT BE IN EFFECT AFTER 800 PM
CDT.  CONTINUE...WW 311...WW 312...

DISCUSSION...SEVERAL SEVERE STORMS ARE MOVING EASTWARD INTO NORTH
CENTRAL TEXAS AHEAD OF STRONG UPPER LOW OVER NEW MEXICO.  DYNAMIC
FORCING IS EXPECTED TO INCREASE TONIGHT AS JET STREAK SPREADS INTO
CENTRAL TEXAS.  INCREASING SOUTHERLY LOW LEVEL WINDS SHOULD ALLOW
NORTHWARD TRANSPORT OF MOISTURE INTO NORTHERN TEXAS...RESULTING IN
DESTABILIZATION OF AIR MASS.  VAD WINDS AND 00Z SOUNDINGS SHOW
STRONG WINDS THAT VEER STRONGLY WITH HEIGHT CREATING VERY FAVORABLE
SHEAR AND HELICITY FOR TORNADIC SUPERCELL DEVELOPMENT.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 570. 
MEAN STORM MOTION VECTOR 24055.


...WEISS

320,1000 335,0991 335,0952 320,0962

Tornado 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; radar from the NEXRAD Level II archive.