Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 90, NWS Austin/San Antonio, TX

February 25, 1998Comal County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 25, 1998, 9:01 PM CST for Comal County, Texas. It was in force for 59 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 25, 1998, 9:01 PM CST (03:01 UTC)
Expired
Feb 25, 1998, 10:00 PM CST
In force
59 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Comal County, TX

The radar

The Austin/San Antonio radar (KEWX), 27 km from the middle of the area, began a volume at 03:02 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.

What was reported inside it

TimeReportWhereRemark
Feb 25, 9:30 PM CSTHail 0.75Fischer, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 25, 8:30 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 3.0 hours before the alert went out and 248 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.

833 
WUUS1 KSAT 260300 RRA
SVRSAT
TXC091-260400-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
901 PM CST WED FEB 25 1998
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...COMAL COUNTY
 
AT 858 PM...RADAR INDICATED SEVERE THUNDERSTORMS ENTERING COMAL
COUNTY FROM THE WEST AT 40 MPH. THE STORMS WILL AFFECT BULVERDE
AND SURROUNDING AREAS WITHIN THE NEXT FEW MINUTES...THEN QUICKLY
MOVE INTO NEW BRAUNFELS AND WESTERN PORTIONS OF COMAL COUNTY.
 
SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH.  THESE WINDS
BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES...
SOMETIMES BUILDINGS.  VERY LARGE HAIL CAN INJURE ANYONE CAUGHT
OUTSIDE.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Feb 25, 5:00 PM CST, 4 hours 1 minute before
TXZ171>173-183>194-202>209-217>225-228-261200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 PM CST WED FEB 25 1998

...FLASH FLOOD WATCH IN EFFECT TONIGHT ALONG AND EAST OF AN AUSTIN-
   SAN ANTONIO-BEEVILLE LINE...

THE POTENTIAL FOR SEVERE THUNDERSTORMS EXISTS IN THE TEXAS HILL
COUNTRY AND SOUTH CENTRAL TEXAS TONIGHT AND THURSDAY MORNING.

LARGE HAIL, DAMAGING WINDS, FREQUENT LIGHTNING, LOCALLY HEAVY RAIN
AND FLASH FLOODING, AND POSSIBLE TORNADIC DEVELOPMENT EXISTS WITH
SEVERE THUNDERSTORMS.

ANOTHER UPPER-LEVEL STORM SYSTEM IS TRACKING EASTWARD ACROSS FAR
WEST TEXAS AND WILL MOVE OVER THE MOISTURE-RICH ATMOSPHERE OF
SOUTH CENTRAL TEXAS TONIGHT AND THURSDAY MORNING.

A FLASH FLOOD WATCH IS IN EFFECT TONIGHT AND THURSDAY MORNING FOR
A PORTION OF SOUTH CENTRAL TEXAS ALONG AND EAST OF AN AUSTIN-SAN
ANTONIO-BEEVILLE LINE AND FOR NEARLY ALL OF SOUTHEAST TEXAS.

AS THE STORMS DEVELOP TONIGHT, THEY WILL MOVE QUICKLY EASTWARD
ACROSS SOUTH CENTRAL TEXAS INTO SOUTHEAST TEXAS.

THIS STORM SYSTEM AGAIN HAS THE POTENTIAL TO PRODUCE SEVERE WEATHER.
RESIDENTS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD CONTINUE TO
MONITOR THE VERY LATEST FORECAST AND ADVISORY ISSUED BY SOUTH TEXAS
WEATHER SERVICE OFFICES.  THESE BULLETINS WILL BE BROADCAST OVER TV
AND RADIO, PLUS CABLE TV, AND NOAA WEATHER RADIO STATIONS.

NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE:
FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF
FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT
FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW
FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU
FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS, SHORT TERM FORECASTS, WATCHES, WARNINGS AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED
HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.

ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER
SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET
WORLD WIDE WEB AT www.srh.noaa.gov/ewx OR TUNE TO THE CLOSEST NOAA
WEATHER RADIO STATION OPERATING ON A FREQUENCY BETWEEN 162.400 MHz
AND 162.550 MHz.

MARCH 1 THROUGH MARCH 7 HAS BEEN PROCLAIMED SEVERE WEATHER AWARENESS
WEEK IN TEXAS.  BUT SEVERE WEATHER KNOWS NO CALENDAR BONDS, AND CAN
OCCUR ANYTIME OF THE YEAR, AND ANYTIME OF THE DAY OR NIGHT.  THANKS
TO THE EFFECTS OF EL NINO IN THE PACIFIC OCEAN, JANUARY AND FEBRUARY
HAVE BEEN PARTICULARLY ACTIVE, AND ALL INDICATIONS MARCH, APRIL, MAY
AND EARLY JUNE WILL CONTINUE THIS TREND.
Special weather statement, Feb 25, 5:00 PM CST, 4 hours 1 minute before
TXZ171>173-183>194-202>209-217>225-228-261200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 PM CST WED FEB 25 1998

...FLASH FLOOD WATCH IN EFFECT TONIGHT ALONG AND EAST OF AN AUSTIN-
   SAN ANTONIO-BEEVILLE LINE...

THE POTENTIAL FOR SEVERE THUNDERSTORMS EXISTS IN THE TEXAS HILL
COUNTRY AND SOUTH CENTRAL TEXAS TONIGHT AND THURSDAY MORNING.

LARGE HAIL, DAMAGING WINDS, FREQUENT LIGHTNING, LOCALLY HEAVY RAIN
AND FLASH FLOODING, AND POSSIBLE TORNADIC DEVELOPMENT EXISTS WITH
SEVERE THUNDERSTORMS.

ANOTHER UPPER-LEVEL STORM SYSTEM IS TRACKING EASTWARD ACROSS FAR
WEST TEXAS AND WILL MOVE OVER THE MOISTURE-RICH ATMOSPHERE OF
SOUTH CENTRAL TEXAS TONIGHT AND THURSDAY MORNING.

A FLASH FLOOD WATCH IS IN EFFECT TONIGHT AND THURSDAY MORNING FOR
A PORTION OF SOUTH CENTRAL TEXAS ALONG AND EAST OF AN AUSTIN-SAN
ANTONIO-BEEVILLE LINE AND FOR NEARLY ALL OF SOUTHEAST TEXAS.

AS THE STORMS DEVELOP TONIGHT, THEY WILL MOVE QUICKLY EASTWARD
ACROSS SOUTH CENTRAL TEXAS INTO SOUTHEAST TEXAS.

THIS STORM SYSTEM AGAIN HAS THE POTENTIAL TO PRODUCE SEVERE WEATHER.
RESIDENTS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD CONTINUE TO
MONITOR THE VERY LATEST FORECAST AND ADVISORY ISSUED BY SOUTH TEXAS
WEATHER SERVICE OFFICES.  THESE BULLETINS WILL BE BROADCAST OVER TV
AND RADIO, PLUS CABLE TV, AND NOAA WEATHER RADIO STATIONS.

NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE:
FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF
FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT
FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW
FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU
FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS, SHORT TERM FORECASTS, WATCHES, WARNINGS AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED
HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.

ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER
SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET
WORLD WIDE WEB AT www.srh.noaa.gov/ewx OR TUNE TO THE CLOSEST NOAA
WEATHER RADIO STATION OPERATING ON A FREQUENCY BETWEEN 162.400 MHz
AND 162.550 MHz.

MARCH 1 THROUGH MARCH 7 HAS BEEN PROCLAIMED SEVERE WEATHER AWARENESS
WEEK IN TEXAS.  BUT SEVERE WEATHER KNOWS NO CALENDAR BONDS, AND CAN
OCCUR ANYTIME OF THE YEAR, AND ANYTIME OF THE DAY OR NIGHT.  THANKS
TO THE EFFECTS OF EL NINO IN THE PACIFIC OCEAN, JANUARY AND FEBRUARY
HAVE BEEN PARTICULARLY ACTIVE, AND ALL INDICATIONS MARCH, APRIL, MAY
AND EARLY JUNE WILL CONTINUE THIS TREND.
Local storm report, Feb 25, 8:21 PM CST, 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
820 PM CST WED FEB 26 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0555 PM    15 E COMSTOCK             TX   WIND DAMAGE
02/26/98   VAL VERDE                      CAMPGROUND SHELTERS DESTROYED.
                                          ESTIMATED 50-60 MPH GUSTS

0750 PM    4 N FREDERICKSBURG        TX   1.75 INCH HAIL
02/26/98   GILLESPIE                      DPS REPORTED MARBLE TO
                                          GOLFBALL HAIL.

0805 PM    PRAIRIE MOUNTAIN          TX   .75 INCH HAIL
02/26/98   LLANO                          HAM REPORT

0820 PM    SABINAL                   TX   1 INCH HAIL
02/26/98   UVALDE                         REPORTED BY HWY DEPT

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 25, 6:33 PM CSTSevere Thunderstorm WarningEWXEdwards57 min
Feb 25, 6:59 PM CSTSevere Thunderstorm WarningEWXKinney61 min
Feb 25, 7:28 PM CSTSevere Thunderstorm WarningEWXReal62 min
Feb 25, 7:37 PM CSTSevere Thunderstorm WarningEWXUvalde68 min
Feb 25, 7:56 PM CSTSevere Thunderstorm WarningEWXBandera, Kerr64 min
Feb 25, 7:56 PM CSTSevere Thunderstorm WarningEWXGillespie, Llano64 min
Feb 25, 8:08 PM CSTSevere Thunderstorm WarningEWXMedina67 min
Feb 25, 8:08 PM CSTSevere Thunderstorm WarningEWXKendall67 min
Feb 25, 8:26 PM CSTTornado WarningEWXMedina, Uvalde64 min
Feb 25, 8:39 PM CSTSevere Thunderstorm WarningEWXBexar66 min
Feb 25, 8:39 PM CSTSevere Thunderstorm WarningEWXBlanco, Burnet66 min
Feb 25, 8:39 PM CSTSevere Thunderstorm WarningEWXFrio, Zavala66 min
Feb 25, 8:48 PM CSTTornado WarningEWXMedina57 min
Feb 25, 8:52 PM CSTSevere Thunderstorm WarningEWXVal Verde38 min
Feb 25, 9:09 PM CSTTornado WarningEWXAtascosa, Bexar51 min
Feb 25, 9:11 PM CSTSevere Thunderstorm WarningEWXHays, Travis64 min
Feb 25, 9:11 PM CSTSevere Thunderstorm WarningEWXWilliamson64 min
Feb 25, 9:48 PM CSTSevere Thunderstorm WarningEWXGuadalupe57 min
Feb 25, 10:03 PM CSTSevere Thunderstorm WarningEWXBexar57 min
Feb 25, 10:36 PM CSTSevere Thunderstorm WarningEWXBastrop, Caldwell69 min
Feb 25, 11:08 PM CSTSevere Thunderstorm WarningEWXFrio52 min
Feb 25, 11:25 PM CSTSevere Thunderstorm WarningEWXFayette65 min
Feb 25, 11:31 PM CSTSevere Thunderstorm WarningEWXAtascosa29 min
Feb 25, 11:39 PM CSTSevere Thunderstorm WarningEWXBandera51 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, 1:41 AM CSTSevere Thunderstorm WarningEWXAtascosa, Bexar34 min
Feb 26, 1:57 AM CSTSevere Thunderstorm WarningEWXMedina33 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, 2:44 AM CSTSevere Thunderstorm WarningEWXKarnes61 min
Feb 26, 2:49 AM CSTSevere Thunderstorm WarningEWXCaldwell, Gonzales56 min
Feb 26, 3:31 AM CSTSevere Thunderstorm WarningEWXDeWitt, Lavaca59 min

Nearby

Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.