Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 148, NWS Austin/San Antonio, TX

April 27, 1998Dimmit County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 27, 1998, 3:29 AM CDT for Dimmit County, Texas. It was in force for 31 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: Apr 27, 1998, 3:29 AM CDT (08:29 UTC)
Expired: Apr 27, 1998, 4:00 AM CDT
In force: 31 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County Dimmit County, TX

What was reported inside it

Time	Report	Where	Remark
Apr 27, 3:50 AM CDT	Hail 1.5	Asherton, 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 nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 8.5 hours before the alert went out and 149 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: 530 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 3149 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

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

652 
WUUS1 KSAT 270830 RRA
SVRSAT
TXC127-270900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
329 AM CDT MON APR 27 1998

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DIMMIT COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 400 AM CDT


* AT 325 AM CDT... A SEVERE THUNDERSTORM WAS INDICATED 15 MILES
  SOUTHWEST OF CARRIZO SPRINGS... BY NATIONAL WEATHER SERVICE
RADAR..
  . MOVING EAST 20 MPH.

* THE SEVERE THUNDERSTORM IS EXPECTED TO BE NEAR-
  CARRIZO SPRINGS AT 345 AM CDT

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL... DEADLY LIGHTNING... AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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, Apr 27, 12:07 AM CDT, 3 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1159 PM CST SUN APR 26 1998

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

0714 PM    BLUFFTON                  TX   .88 INCH HAIL
04/26/98   LLANO                          REPORTED BY SHERIFF.

0735 PM    LAKE BUCHANAN             TX   60+ MPH TSTM GUST
04/26/98   BURNET                         SUSTAINED WIND REPORTED BY
                                          LCRA.

0840 PM    JOHNSON CITY              TX   60+ MPH TSTM GUST
04/26/98   BLANCO                         REPORTED BY SHERIFF.

0840 PM    JOHNSON CITY              TX   .75 INCH HAIL
04/26/98   BLANCO                         REPORTED BY SHERIFF.

0910 PM    BEE CAVE                  TX   TORNADO
04/26/98   TRAVIS                         PUBLIC REPORT.

0920 PM    BRIARCLIFF                TX   TORNADO
04/26/98   TRAVIS                z         PUBLIC REPORT.

Local storm report, Apr 27, 12:59 AM CDT, 2 hours 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1159 PM CST SUN APR 26 1998

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

0714 PM    BLUFFTON                  TX   .88 INCH HAIL
04/26/98   LLANO                          REPORTED BY SHERIFF.

0735 PM    LAKE BUCHANAN             TX   60+ MPH TSTM GUST
04/26/98   BURNET                         SUSTAINED WIND REPORTED BY
                                          LCRA.

0840 PM    JOHNSON CITY              TX   60+ MPH TSTM GUST
04/26/98   BLANCO                         REPORTED BY SHERIFF.

0840 PM    JOHNSON CITY              TX   .75 INCH HAIL
04/26/98   BLANCO                         REPORTED BY SHERIFF.

0910 PM    BEE CAVE                  TX   TORNADO
04/26/98   TRAVIS                         PUBLIC REPORT.

0920 PM    BRIARCLIFF                TX   TORNADO
04/26/98   TRAVIS                         PUBLIC REPORT.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 7:12 PM CDT	Severe Thunderstorm Warning	EWX	Burnet	58 min
Apr 26, 8:03 PM CDT	Severe Thunderstorm Warning	EWX	Blanco	62 min
Apr 26, 8:30 PM CDT	Severe Thunderstorm Warning	EWX	Travis	90 min
Apr 26, 8:40 PM CDT	Tornado Warning	EWX	Travis	90 min
Apr 26, 9:49 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop	61 min
Apr 27, 3:56 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit	34 min
Apr 27, 5:49 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit	61 min
Apr 27, 4:47 PM CDT	Severe Thunderstorm Warning	EWX	Fayette, Lee	63 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.