Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 106, NWS Austin/San Antonio, TX

February 26, 1998Medina County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 26, 1998, 1:57 AM CST for Medina County, Texas. It was in force for 33 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 26, 1998, 1:57 AM CST (07:57 UTC)
Expired: Feb 26, 1998, 2:30 AM CST
In force: 33 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County Medina County, TX

The radar

The Austin/San Antonio radar (KEWX), 112 km from the middle of the area, began a volume at 07:57 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

Time	Report	Where	Remark
Feb 26, 2:15 AM CST	Hail 1	Castroville, 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.

Issued	Product	Office	Lasted
Feb 25, 8:30 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 8.0 hours before the alert went out and 168 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1064 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 2006 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 260757 RRA
SVRSAT
TXC325-260830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
157 AM CST THU FEB 26 1998
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...MEDINA COUNTY
 
AT 155 AM...NATIONAL WEATHER SERVICE RADAR SHOWD THUNDERSTORMS
OVER MEDINA COUNTY...CAPABLE OF PRODUCING ONE HALF TO ONE INCH
HAIL.  THE THUNDERSTORMS WERE TO THE WEST AND SOUTHWEST OF
CASTROVILLE...MOVING NORTHEAST AT 50 MPH.
 
 
PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY
OF LARGE HAIL AND DAMAGING WINDS.  FREQUENT LIGHTNING AND LOCALLY
HEAVY RAIN CAN ALSO OCCUR WITH SEVERE THUNDERSTORMS...FLOODING SMALL
STREAMS...LOW AREAS...AND LOW WATER CROSSINGS.

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

Local storm report, Feb 25, 8:21 PM CST, 5 hours 36 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

Local storm report, Feb 25, 10:10 PM CST, 3 hours 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1010 PM CST WED FEB 25 1998

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

0555 PM    15 E COMSTOCK             TX   WIND DAMAGE
02/25/98   VAL VERDE                      CAMPGROUND SHELTERS
                                          DESTROYED. ESTIMATED
                                          50-60 MPH GUSTS.

0750 PM    4 N FREDERICKSBURG        TX   1.75 INCH HAIL
02/25/98   GILLESPIE                      DPS REPORTED MARBLE TO
                                          GOLFBALL HAIL.

0805 PM    PRAIRIE MOUNTAIN          TX   .75 INCH HAIL
02/25/98   LLANO                          HAM REPORT

0820 PM    SABINAL                   TX   1 INCH HAIL
02/25/98   UVALDE                         REPORTED BY HWY DEPT

0830 PM    FREDERICKSBURG            TX   WIND DAMAGE
02/25/98   GILLESPIE                      ROOF DAMAGE TO APARTMENT
                                          BUILDING.

0900 PM   BURNET                     TX   TSTM WIND GUST
02/25/98  BURNET                          62 MPH GUST MEASURED BY
                                          SCHOOL NETWORK.

0900 PM   PIPE CREEK                 TX   .75 INCH HAIL
02/25/98  BANDERA                         REPORTED BY A SPOTTER

0907 PM   DEVINE                     TX   1.75 INCH HAIL
02/25/98  MEDINA                          REPORTED BY HAMS

0910 PM   INKS LAKE                  TX   WIND DAMAGE
02/25/98  BURNET                          LCRA REPORTED TREES DOWN.

0912 PM   CASTROVILLE                TX   1.75 INCH HAIL
02/25/98  MEDINA                          REPORTED BY HAMS

0924 PM   FRIO TOWN                  TX   1.75 INCH HAIL
02/25/98  FRIO                            REPORTED BY SPOTTER

0935 PM   ROUND MOUNTAIN             TX   WIND DAMAGE
02/25/98  BLANCO                          NWS EMPLOYEE REPORTED
                                          TREES DOWN.

0950 PM   TAYLOR                     TX   WIND DAMAGE
02/25/98  WILLIAMSON                      TREES DOWN. REPORTED BY
                                          HAMS. 60 MPH ESTIMATE.

Local storm report, Feb 25, 10:10 PM CST, 3 hours 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1010 PM CST WED FEB 25 1998

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

0555 PM    15 E COMSTOCK             TX   WIND DAMAGE
02/25/98   VAL VERDE                      CAMPGROUND SHELTERS
                                          DESTROYED. ESTIMATED
                                          50-60 MPH GUSTS.

0750 PM    4 N FREDERICKSBURG        TX   1.75 INCH HAIL
02/25/98   GILLESPIE                      DPS REPORTED MARBLE TO
                                          GOLFBALL HAIL.

0805 PM    PRAIRIE MOUNTAIN          TX   .75 INCH HAIL
02/25/98   LLANO                          HAM REPORT

0820 PM    SABINAL                   TX   1 INCH HAIL
02/25/98   UVALDE                         REPORTED BY HWY DEPT

0830 PM    FREDERICKSBURG            TX   WIND DAMAGE
02/25/98   GILLESPIE                      ROOF DAMAGE TO APARTMENT
                                          BUILDING.

0900 PM   BURNET                     TX   TSTM WIND GUST
02/25/98  BURNET                          62 MPH GUST MEASURED BY
                                          SCHOOL NETWORK.

0900 PM   PIPE CREEK                 TX   .75 INCH HAIL
02/25/98  BANDERA                         REPORTED BY A SPOTTER

0907 PM   DEVINE                     TX   1.75 INCH HAIL
02/25/98  MEDINA                          REPORTED BY HAMS

0910 PM   INKS LAKE                  TX   WIND DAMAGE
02/25/98  BURNET                          LCRA REPORTED TREES DOWN.

0912 PM   CASTROVILLE                TX   1.75 INCH HAIL
02/25/98  MEDINA                          REPORTED BY HAMS

0924 PM   FRIO TOWN                  TX   1.75 INCH HAIL
02/25/98  FRIO                            REPORTED BY SPOTTER

0935 PM   ROUND MOUNTAIN             TX   WIND DAMAGE
02/25/98  BLANCO                          NWS EMPLOYEE REPORTED
                                          TREES DOWN.

0950 PM   TAYLOR                     TX   WIND DAMAGE
02/25/98  WILLIAMSON                      TREES DOWN. REPORTED BY
                                          HAMS. 60 MPH ESTIMATE.

Local storm report, Feb 25, 11:16 PM CST, 2 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1116 PM CST WED FEB 25 1998

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

0555 PM    15 E COMSTOCK             TX   WIND DAMAGE
02/25/98   VAL VERDE                      CAMPGROUND SHELTERS
                                          DESTROYED. ESTIMATED
                                          50-60 MPH GUSTS.

0750 PM    4 N FREDERICKSBURG        TX   1.75 INCH HAIL
02/25/98   GILLESPIE                      DPS REPORTED MARBLE TO
                                          GOLFBALL HAIL.

0805 PM    PRAIRIE MOUNTAIN          TX   .75 INCH HAIL
02/25/98   LLANO                          HAM REPORT

0820 PM    SABINAL                   TX   1 INCH HAIL
02/25/98   UVALDE                         REPORTED BY HWY DEPT

0830 PM    FREDERICKSBURG            TX   WIND DAMAGE
02/25/98   GILLESPIE                      ROOF DAMAGE TO APARTMENT
                                          BUILDING.

0900 PM   BURNET                     TX   TSTM WIND GUST
02/25/98  BURNET                          62 MPH GUST MEASURED BY
                                          SCHOOL NETWORK.

0900 PM   PIPE CREEK                 TX   .75 INCH HAIL
02/25/98  BANDERA                         REPORTED BY A SPOTTER

0907 PM   DEVINE                     TX   1.75 INCH HAIL
02/25/98  MEDINA                          REPORTED BY HAMS

0910 PM   INKS LAKE                  TX   WIND DAMAGE
02/25/98  BURNET                          LCRA REPORTED TREES DOWN.

0912 PM   CASTROVILLE                TX   1.75 INCH HAIL
02/25/98  MEDINA                          REPORTED BY HAMS

0924 PM   FRIO TOWN                  TX   1.75 INCH HAIL
02/25/98  FRIO                            REPORTED BY SPOTTER

0935 PM   ROUND MOUNTAIN             TX   WIND DAMAGE
02/25/98  BLANCO                          NWS EMPLOYEE REPORTED
                                          TREES DOWN.

0945 PM   WALBURG                    TX   TSTM WIND GUST
02/25/98  WILLIAMSON                      61 MPH GUST MEASURED BY
                                          SCHOOL NETWORK.

0947 PM   2 S JARRELL                TX   WIND DAMAGE
02/25/98  WILLIAMSON                      DAMAGE TO A BARN.

0950 PM   TAYLOR                     TX   WIND DAMAGE
02/25/98  WILLIAMSON                      TREES DOWN. REPORTED BY
                                          HAMS. 60 MPH ESTIMATE.

1005 PM   THRALL                     TX   WIND DAMAGE
02/25/98  WILLIAMSON                      POWER POLE DOWN ON HWY 79

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 25, 6:33 PM CST	Severe Thunderstorm Warning	EWX	Edwards	57 min
Feb 25, 6:59 PM CST	Severe Thunderstorm Warning	EWX	Kinney	61 min
Feb 25, 7:28 PM CST	Severe Thunderstorm Warning	EWX	Real	62 min
Feb 25, 7:37 PM CST	Severe Thunderstorm Warning	EWX	Uvalde	68 min
Feb 25, 7:56 PM CST	Severe Thunderstorm Warning	EWX	Bandera, Kerr	64 min
Feb 25, 7:56 PM CST	Severe Thunderstorm Warning	EWX	Gillespie, Llano	64 min
Feb 25, 8:08 PM CST	Severe Thunderstorm Warning	EWX	Medina	67 min
Feb 25, 8:08 PM CST	Severe Thunderstorm Warning	EWX	Kendall	67 min
Feb 25, 8:26 PM CST	Tornado Warning	EWX	Medina, Uvalde	64 min
Feb 25, 8:39 PM CST	Severe Thunderstorm Warning	EWX	Bexar	66 min
Feb 25, 8:39 PM CST	Severe Thunderstorm Warning	EWX	Blanco, Burnet	66 min
Feb 25, 8:39 PM CST	Severe Thunderstorm Warning	EWX	Frio, Zavala	66 min
Feb 25, 8:48 PM CST	Tornado Warning	EWX	Medina	57 min
Feb 25, 8:52 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	38 min
Feb 25, 9:01 PM CST	Severe Thunderstorm Warning	EWX	Comal	59 min
Feb 25, 9:09 PM CST	Tornado Warning	EWX	Atascosa, Bexar	51 min
Feb 25, 9:11 PM CST	Severe Thunderstorm Warning	EWX	Hays, Travis	64 min
Feb 25, 9:11 PM CST	Severe Thunderstorm Warning	EWX	Williamson	64 min
Feb 25, 9:48 PM CST	Severe Thunderstorm Warning	EWX	Guadalupe	57 min
Feb 25, 10:03 PM CST	Severe Thunderstorm Warning	EWX	Bexar	57 min
Feb 25, 10:36 PM CST	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell	69 min
Feb 25, 11:08 PM CST	Severe Thunderstorm Warning	EWX	Frio	52 min
Feb 25, 11:25 PM CST	Severe Thunderstorm Warning	EWX	Fayette	65 min
Feb 25, 11:31 PM CST	Severe Thunderstorm Warning	EWX	Atascosa	29 min
Feb 25, 11:39 PM CST	Severe Thunderstorm Warning	EWX	Bandera	51 min
Feb 26, 12:41 AM CST	Severe Thunderstorm Warning	EWX	Bexar, Comal	64 min
Feb 26, 12:48 AM CST	Severe Thunderstorm Warning	EWX	Caldwell, Guadalupe, Hays	57 min
Feb 26, 12:56 AM CST	Severe Thunderstorm Warning	EWX	Bastrop	64 min
Feb 26, 1:15 AM CST	Severe Thunderstorm Warning	EWX	Lavaca	45 min
Feb 26, 1:15 AM CST	Severe Thunderstorm Warning	EWX	Lee	45 min
Feb 26, 1:41 AM CST	Severe Thunderstorm Warning	EWX	Atascosa, Bexar	34 min
Feb 26, 2:21 AM CST	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Guadalupe, Wilson	69 min
Feb 26, 2:26 AM CST	Severe Thunderstorm Warning	EWX	Comal	64 min
Feb 26, 2:35 AM CST	Flash Flood Warning	EWX	Fayette, Lavaca	4 hr
Feb 26, 2:44 AM CST	Severe Thunderstorm Warning	EWX	Karnes	61 min
Feb 26, 2:49 AM CST	Severe Thunderstorm Warning	EWX	Caldwell, Gonzales	56 min
Feb 26, 3:31 AM CST	Severe Thunderstorm Warning	EWX	DeWitt, Lavaca	59 min

Nearby

Severe Thunderstorm Warnings in Texas, 1998 Every 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.