Alert archive / Texas / Tornado Watches in 1998

Tornado Watch 62

February 25, 199837 counties in Texas

The Storm Prediction Center issued this tornado watch at Feb 25, 1998, 9:30 PM CST for 37 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Feb 25, 1998, 9:30 PM CST (03:30 UTC)
Expired
Feb 26, 1998, 3:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 37 counties

Atascosa County, TX, Austin County, TX, Bastrop County, TX, Bee County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Colorado County, TX, Comal County, TX, DeWitt County, TX, Falls County, TX, Fayette County, TX, Frio County, TX, Goliad County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, La Salle County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Live Oak County, TX, Madison County, TX, McMullen County, TX, Milam County, TX, Refugio County, TX, Robertson County, TX, Travis County, TX, Victoria County, TX, Washington County, TX, Williamson County, TX, Wilson County, TX

The radar

The Austin/San Antonio radar (KEWX), 37 km from the middle of the area, began a volume at 03:32 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Feb 25, 9:36 PM CSTSevere Thunderstorm WarningFWDBell, McLennan69 min
Feb 25, 9:48 PM CSTSevere Thunderstorm WarningEWXGuadalupe57 min
Feb 25, 10:03 PM CSTSevere Thunderstorm WarningEWXBexar57 min
Feb 25, 10:08 PM CSTSevere Thunderstorm WarningFWDFalls67 min
Feb 25, 10:17 PM CSTSevere Thunderstorm WarningFWDMilam58 min
Feb 25, 10:29 PM CSTSevere Thunderstorm WarningHGXBurleson61 min
Feb 25, 10:36 PM CSTSevere Thunderstorm WarningEWXBastrop, Caldwell69 min
Feb 25, 10:38 PM CSTSevere Thunderstorm WarningFWDLimestone, Robertson67 min
Feb 25, 10:49 PM CSTSevere Thunderstorm WarningHGXBrazos61 min
Feb 25, 11:02 PM CSTSevere Thunderstorm WarningCRPLa Salle43 min
Feb 25, 11:08 PM CSTSevere Thunderstorm WarningEWXFrio52 min
Feb 25, 11:13 PM CSTSevere Thunderstorm WarningFWDFreestone, Leon62 min
Feb 25, 11:25 PM CSTSevere Thunderstorm WarningEWXFayette65 min
Feb 25, 11:25 PM CSTSevere Thunderstorm WarningHGXWashington60 min
Feb 25, 11:31 PM CSTSevere Thunderstorm WarningEWXAtascosa29 min
Feb 25, 11:38 PM CSTSevere Thunderstorm WarningHGXGrimes, Madison62 min
Feb 26, 12:41 AM CSTSevere Thunderstorm WarningEWXBexar, Comal64 min
Feb 26, 12:48 AM CSTSevere Thunderstorm WarningEWXCaldwell, Guadalupe, Hays57 min
Feb 26, 12:56 AM CSTSevere Thunderstorm WarningEWXBastrop64 min
Feb 26, 1:15 AM CSTSevere Thunderstorm WarningEWXLavaca45 min
Feb 26, 1:15 AM CSTSevere Thunderstorm WarningEWXLee45 min
Feb 26, 1:25 AM CSTSevere Thunderstorm WarningHGXColorado60 min
Feb 26, 1:41 AM CSTSevere Thunderstorm WarningEWXAtascosa, Bexar34 min
Feb 26, 2:21 AM CSTSevere Thunderstorm WarningEWXAtascosa, Bexar, Guadalupe, Wilson69 min
Feb 26, 2:26 AM CSTSevere Thunderstorm WarningEWXComal64 min
Feb 26, 2:35 AM CSTFlash Flood WarningEWXFayette, Lavaca4 hr
Feb 26, 2:40 AM CSTFlash Flood WarningHGXWashington3 hr
Feb 26, 2:41 AM CSTSevere Thunderstorm WarningCRPLive Oak64 min
Feb 26, 2:44 AM CSTSevere Thunderstorm WarningEWXKarnes61 min
Feb 26, 2:49 AM CSTSevere Thunderstorm WarningEWXCaldwell, Gonzales56 min
Feb 26, 3:00 AM CSTSevere Thunderstorm WarningCRPBee60 min

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 3.5 hours before the alert went out and 193 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, Corpus Christi, TX at 00:00Z on 1998-02-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1002 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, Corpus Christi, TX at 00:00Z on 1998-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
1002 J/kg
Mixed-layer CIN
-324 J/kg
Mixed-layer LCL
828 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

858 
WWUS9 KMKC 260303
SEL2  
MKC WW 260303
TXZ000-260900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 62
STORM PREDICTION CENTER NORMAN OK
903 PM CST WED FEB 25 1998

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

   CENTRAL AND SOUTHEAST TEXAS                              

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 930 PM
UNTIL 300 AM CST.

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 75 STATUTE MILES EAST AND WEST
OF A LINE FROM 50 MILES WEST SOUTHWEST OF BEEVILLE TEXAS TO 50
MILES EAST NORTHEAST OF TEMPLE 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 SEVERE
THUNDERSTORM WATCH NUMBER 61.  WATCH NUMBER 61 WILL NOT BE IN
EFFECT AFTER 930 PM CST.  CONTINUE...WW 59...WW 60...  WW 59 AND WW
60 WILL BE REPLACED BY NEW SEVERE THUNDERSTORM WATCH SHORTLY.

DISCUSSION...SEVERE THUNDERSTORMS ARE MOVING EASTWARD ACROSS
CENTRAL TEXAS AHEAD OF STRONG UPPER TROUGH MOVING ACROSS WEST
TEXAS.  CONVECTION IS MOVING INTO INCREASINGLY MOIST/UNSTABLE AIR
MASS WITH LUFTED INDEX TO -7.  VAD WIND PROFILES SHOW STRONG
SOUTHERLY FLOW JUST ABOVE THE SURFACE...VEERING AND INCREASING IN
SPEED WITH HEIGHT.  PROFILES SUGGEST CONTINUED THREAT FOR SUPERCELL
DEVELOPMENT...ESPECIALLY OVER SOUTH CENTRAL TEXAS.


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 480. 
MEAN STORM MOTION VECTOR 22040.


...WEISS

280,0993 311,0975 311,0951 280,0971

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 25, 8:30 PM CSTSevere Thunderstorm WatchSPCAtascosa, Bastrop, Bexar, Blanco, Burleson, Caldwell and 19 more6 hr
Feb 25, 9:30 PM CSTSevere Thunderstorm WatchSPCAnderson, Bowie, Camp, Cass, Cherokee, Dallas and 24 more6 hr
Feb 26, 12:00 AM CSTSevere Thunderstorm WatchSPCAngelina, Austin, Brazoria, Chambers, Cherokee, Fort Bend and 25 more6 hr
Feb 26, 6:30 AM CSTSevere Thunderstorm WatchSPCChambers, Galveston, Hardin, Jasper, Jefferson, Newton and 3 more6 hr
Feb 26, 5:45 PM CSTSevere Thunderstorm WatchSPCBosque, Brown, Burnet, Comanche, Coryell, Edwards and 23 more4 hr

Nearby

Tornado Watches in Texas, 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; radar from the NEXRAD Level II archive.