Alert archive / Texas / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 76, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 5, 1989, 8:35 AM CDT for Gonzales County, Texas. It was in force for 70 min.
The area
The counties it named.
The facts
- Issued
- May 5, 1989, 8:35 AM CDT (13:35 UTC)
- Expired
- May 5, 1989, 9:45 AM CDT
- In force
- 70 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Gonzales County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Victoria Regiona, TX (KVCT), launched 12:00Z, 1.6 hours before the alert went out and 89 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.
- Mixed-layer CAPE
- 1705 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 765 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 5.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 051338
SVRSAT
TXC177-051430-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
835 AM CDT FRI MAY 5 1989
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...GONZALES
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.
WHEN A THUNDERSTORM THREATENS...SEEK SHELTER INSIDE A HOME OR
BUILDING AWAY FROM DOORS AND WINDOWS. REFRAIN FROM USING ELECTRICAL
APPLIANCES.
YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR
SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.
PLEASE LISTEN TO YOUR LOCAL RADIO...TV OR NOAA WEATHER RADIO STATION
FOR LATER STATEMENTS OR WARNINGS REGARDING THIS SEVERE WEATHER EVENT.
REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO WARNING.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, May 5, 2:48 AM CDT, 5 hours 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 250 AM CDT FRI MAY 5 1989 ...TORNADO WATCH IN EFFECT UNTIL 7 AM CDT FRIDAY MORNING FOR MUCH OF OF SOUTH CENTRAL TEXAS... AT 245 AM CDT...WEATHER SERVICE RADAR INDICATED A LARGE AREA OF STRONG THUNDERSTORMS STRETCHING EASTWARD FROM JOHNSON CITY TO HOUSTON. THIS AREA WAS MOVING RAPIDLY SOUTHEAST AT 45 MILES AN HOUR. AT PRESENT...THE GREATEST THREAT FROM THESE STORMS IS THE OCCURRENCE OF STRONG...POSSIBLY DAMAGING...WIND AHEAD OF AND DURING THEIR PASSAGE. EARLIER...COLLEGE STATION HAD REPORTED A WIND GUST TO 50 MILES AN HOUR AS THE STORMS MOVED THROUGH. HOUSTON HAD REPORTED A 45 MILE AN HOUR GUST WITHIN THE PAST FEW MINUTES WITH THE STORMS APPROACHING THE CITY. ALONG WITH THE HIGH PROBABILITY OF STRONG STRAIGHT-LINE WIND...THESE TYPE OF STORMS HAVE BEEN KNOWN TO PRODUCE ISOLATED TORNADOES AND LARGE HAIL. A TORNADO WATCH IS IN EFFECT UNTIL 7 AM FOR MUCH OF SOUTH CENTRAL TEXAS. THIS WATCH INCLUDES THE METROPOLITAN AREAS OF AUSTIN AND SAN ANTONIO. THIS IS A POTENTIALLY DANGEROUS STORM SYSTEM AND RESIDENTS ALL ACROSS SOUTH CENTRAL TEXAS NEED TO MAINTAIN A CLOSE WATCH ON THE WEATHER FOR THE NEXT 'FEW HOURS. ADDITIONAL BULLETINS WILL BE ISSUED AS NECESSARY TO KEEP YOU UPDATED. THESE BULLETINS WILL BE BROADCAST OVER NOAA WEATHER RADIO...YOUR BEST SOURCE OF WEATHER INFORMATION.
Special weather statement, May 5, 3:37 AM CDT, 4 hours 58 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 335 AM CDT FRI MAY 5 1989 ...TORNADO WATCH IN EFFECT UNTIL 7 AM CDT FRIDAY MORNING FOR MUCH OF OF SOUTH CENTRAL TEXAS... AT 330 AM CDT...A LARGE AREA OF STRONG THUNDERSTORMS CONTINUED TO MOVE RAPIDLY ACROSS SOUTH CENTRAL TEXAS. THE STRONGEST STORMS WERE JUST EAST OF NEW BRAUNFELS AND SOUTHEAST OF AUSTIN. MOVEMENT WAS SOUTHEAST AT 45 MILES AN HOUR. THE STORMS HAVE EXHIBITED A CONSTANT CYCLE OF RAPID WEAKENING FOLLOWED BY REGENERATION THROUGHOUT THE NIGHT AND EARLY MORNING HOURS. THESE STORMS HAVE BEEN PROLIFIC STRONG WIND PRODUCERS DURING THEIR TREK ACROSS THE STATE...WITH GUSTS OFTEN REACHING 50 MILES AN HOUR. EARLIER... COLLEGE STATION EXPERIENCED A GUST OF 50 MILES AN HOUR AS THE STORMS ROLLED THROUGH. IN ADDITION...40 TO 45 MILE AN HOUR GUSTS WERE REPORTED AT BOTH AUSTIN AND HOUSTON...WITH A RECENT ESTIMATED REPORT OF 45 MILES AN HOUR IN THE NEW BRAUNFELS AREA. TORNADOES AND LARGE HAIL ALSO MAY ACCOMPANY THESE STORMS THIS MORNING. ACCORDINGLY...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF SOUTH CENTRAL TEXAS. THIS WATCH INCLUDES THE METROPOLITAN AREAS OF AUSTIN AND SAN ANTONIO. STAY TU>NED TO NOAA WEATHER RADIO THROUGHOUT THE MORNING FOR ADDITIONAL INFORMATION REGARDING THESE THUNDERSTORMS.
Special weather statement, May 5, 7:10 AM CDT, 1 hour 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 710 AM CDT FRI MAY 5 1989 ...THE TORNADO WATCH FOR MUCH OF SOUTH CENTRAL TEXAS HAS EXPIRED... AT 705 AM CDT...SCATTERED THUNDERSTORMS...SOME WITH HEAVY RAIN... PERSISTED OVER AN AREA FROM LAMPASAS TO GONZALES TO HALLETSVILLE TO AUSTIN AND BACK TO LAMPASAS. STORM MOVEMENT WAS SOUTHEAST AT 45 MPH. THESE STORMS CONTINUED TO MOVE THROUGH CYCLES OF RAPID WEAKENING WITH DECREASING COVERAGE...FOLLOWED BY STRENGTHENING AND INCREASING COVERAGE. AT 705 AM THE GREATEST THREAT FROM THE STORMS APPEARED TO BE ASSOCIATED WITH THE LIGHTNING. HOWEVER...ISOLATED SEVERE STORMS COULD STILL PRODUCE LARGE HAIL OR DAMAGING WIND..AND PERSONS IN THE PATH OF THE MORE INTENSE STORMS SHOULD BE AWARE OF THIS POSSIBILITY.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 12:03 AM CDT | Severe Thunderstorm Warning | EWX | Burnet, Lampasas, San Saba | 57 min |
| May 5, 12:23 AM CDT | Tornado Warning | EWX | San Saba | 52 min |
| May 5, 1:11 AM CDT | Severe Thunderstorm Warning | EWX | Williamson | 64 min |
| May 5, 2:01 AM CDT | Severe Thunderstorm Warning | EWX | Burnet | 44 min |
| May 5, 2:14 AM CDT | Severe Thunderstorm Warning | EWX | Blanco | 61 min |
| May 5, 2:25 AM CDT | Severe Thunderstorm Warning | EWX | Travis | 50 min |
| May 5, 4:11 AM CDT | Tornado Warning | EWX | Hays | 34 min |
| May 5, 4:13 AM CDT | Tornado Warning | EWX | Guadalupe | 32 min |
| May 5, 4:25 AM CDT | Tornado Warning | EWX | Caldwell | 35 min |
| May 5, 4:37 AM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 53 min |
| May 5, 5:03 AM CDT | Tornado Warning | EWX | Caldwell | 27 min |
| May 5, 5:23 AM CDT | Severe Thunderstorm Warning | EWX | Hays | 67 min |
| May 5, 6:12 AM CDT | Severe Thunderstorm Warning | EWX | Caldwell, Travis | 63 min |
| May 5, 6:12 AM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet | 63 min |
| May 5, 7:30 AM CDT | Severe Thunderstorm Warning | EWX | Fayette | 45 min |
| May 5, 7:42 AM CDT | Tornado Warning | EWX | Caldwell, Hays | 63 min |
| May 5, 8:38 AM CDT | Tornado Warning | EWX | Caldwell, Fayette | 32 min |
| May 5, 8:44 AM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 61 min |
| May 5, 8:47 AM CDT | Severe Thunderstorm Warning | EWX | Lavaca | 58 min |
| May 5, 9:13 AM CDT | Severe Thunderstorm Warning | EWX | DeWitt | 62 min |
| May 5, 10:09 AM CDT | Severe Thunderstorm Warning | EWX | DeWitt, Lavaca | 66 min |
| May 5, 10:23 AM CDT | Severe Thunderstorm Warning | EWX | Victoria | 67 min |
| May 5, 10:54 AM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 51 min |
| May 5, 11:10 AM CDT | Severe Thunderstorm Warning | EWX | DeWitt | 65 min |
| May 5, 12:09 PM CDT | Severe Thunderstorm Warning | EWX | Karnes | 66 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1989Every severe thunderstorm warning in 1989
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.