Alert archive / Texas / Tornado Watches in 1998

Tornado Watch 535

June 9, 199813 counties in Oklahoma; 22 counties in Texas

The Storm Prediction Center issued this tornado watch at Jun 9, 1998, 3:15 PM CDT for 13 counties in Oklahoma; 22 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 9, 1998, 3:15 PM CDT (20:15 UTC)
Expired
Jun 9, 1998, 9:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 35 counties

Carter County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Jefferson County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pontotoc County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Cooke County, TX, Fisher County, TX, Foard County, TX, Haskell County, TX, Jack County, TX, Jones County, TX, Knox County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Scurry County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Wise County, TX, Young County, TX

Warnings issued inside it

36 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 9, 3:18 PM CDTSevere Thunderstorm WarningOUNBaylor, Wilbarger42 min
Jun 9, 3:32 PM CDTSevere Thunderstorm WarningOUNFoard, Knox43 min
Jun 9, 3:54 PM CDTSevere Thunderstorm WarningOUNFoard, Knox66 min
Jun 9, 4:00 PM CDTSevere Thunderstorm WarningOUNBaylor, Wichita, Wilbarger60 min
Jun 9, 4:45 PM CDTSevere Thunderstorm WarningOUNCotton, Tillman45 min
Jun 9, 4:57 PM CDTSevere Thunderstorm WarningOUNBaylor, Foard, Knox48 min
Jun 9, 4:57 PM CDTSevere Thunderstorm WarningOUNArcher, Wichita, Wilbarger48 min
Jun 9, 5:08 PM CDTSevere Thunderstorm WarningOUNClay52 min
Jun 9, 5:25 PM CDTSevere Thunderstorm WarningOUNCotton50 min
Jun 9, 5:35 PM CDTTornado WarningOUNClay30 min
Jun 9, 5:43 PM CDTTornado WarningOUNArcher47 min
Jun 9, 5:46 PM CDTSevere Thunderstorm WarningOUNBaylor, Wichita, Wilbarger44 min
Jun 9, 5:59 PM CDTSevere Thunderstorm WarningOUNJefferson46 min
Jun 9, 5:59 PM CDTSevere Thunderstorm WarningOUNArcher, Clay, Wichita46 min
Jun 9, 6:10 PM CDTFlash Flood WarningOUNClay, Wichita3 hr
Jun 9, 6:26 PM CDTSevere Thunderstorm WarningOUNGarvin, Murray34 min
Jun 9, 6:30 PM CDTSevere Thunderstorm WarningFWDMontague60 min
Jun 9, 6:36 PM CDTSevere Thunderstorm WarningOUNFoard, Hardeman, Wilbarger39 min
Jun 9, 6:45 PM CDTSevere Thunderstorm WarningOUNCarter, Jefferson, Stephens45 min
Jun 9, 6:45 PM CDTSevere Thunderstorm WarningOUNLove45 min
Jun 9, 6:50 PM CDTSevere Thunderstorm WarningOUNArcher, Clay40 min
Jun 9, 6:56 PM CDTSevere Thunderstorm WarningOUNCarter, Murray49 min
Jun 9, 7:06 PM CDTSevere Thunderstorm WarningFWDCooke64 min
Jun 9, 7:09 PM CDTFlash Flood WarningOUNMurray2 hr
Jun 9, 7:15 PM CDTSevere Thunderstorm WarningOUNTillman45 min
Jun 9, 7:25 PM CDTSevere Thunderstorm WarningFWDMontague65 min
Jun 9, 7:25 PM CDTSevere Thunderstorm WarningOUNClay35 min
Jun 9, 7:31 PM CDTSevere Thunderstorm WarningOUNCarter, Johnston, Love, Marshall44 min
Jun 9, 7:31 PM CDTSevere Thunderstorm WarningOUNPontotoc44 min
Jun 9, 7:58 PM CDTSevere Thunderstorm WarningOUNCoal47 min
Jun 9, 8:09 PM CDTSevere Thunderstorm WarningOUNLove51 min
Jun 9, 8:09 PM CDTSevere Thunderstorm WarningFWDCooke66 min
Jun 9, 8:35 PM CDTTornado WarningFWDCooke25 min
Jun 9, 8:43 PM CDTSevere Thunderstorm WarningOUNAtoka, Coal47 min
Jun 9, 8:44 PM CDTSevere Thunderstorm WarningOUNTillman46 min
Jun 9, 8:55 PM CDTSevere Thunderstorm WarningOUNComanche, Cotton, Tillman50 min

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 8.3 hours before the alert went out and 179 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 1998-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 633 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 1998-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 207 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
633 J/kg
Mixed-layer CIN
-434 J/kg
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
207 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

477 
WWUS9 KMKC 091954
SEL5  
MKC WW 091954
OKZ000-TXZ000-100200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 535
STORM PREDICTION CENTER NORMAN OK
254 PM CDT TUE JUN 9 1998

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

   SOUTHWESTERN AND SOUTH CENTRAL OKLAHOMA                        
   NORTHWESTERN TEXAS                              

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 315 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 ABILENE TEXAS TO 55 MILES EAST NORTHEAST OF FORT
SILL 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.


DISCUSSION...THUNDERSTORMS WILL RAPIDLY INCREASE ALONG SURFACE
FRONT AND DRY LINE AS AIR MASS EXTREMELY UNSTABLE WITH MUCAPES NEAR
6000 J/KG. 40 TO 50 KT MID LEVEL FLOW WILL PROVIDE FAVORABLE SHEAR
FOR A FEW TORNADIC SUPERCELLS WITH HIGH CAPES AND DRY AIR AT MID
LEVELS RESULTING IN ENHANCED HAIL AND DOWNBURST POTENTIAL.

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.

...ROGASH

322,1011 344,0990 344,0955 322,0980

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 8:45 PM CDTTornado WatchSPCCanadian, Cleveland, Coal, Garvin, Grady, Haskell and 12 more5 hr
Jun 8, 11:00 PM CDTSevere Thunderstorm WatchSPCAdair, Cherokee, Craig, Creek, Delaware, Mayes and 9 more5 hr

Nearby

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

Sources

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.