Alert archive / Texas / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 69, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 5, 1989, 2:14 AM CDT for Blanco County, Texas. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- May 5, 1989, 2:14 AM CDT (07:14 UTC)
- Expired
- May 5, 1989, 3:15 AM CDT
- In force
- 61 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Blanco 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 00:00Z, 7.2 hours before the alert went out and 214 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
- 1991 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 845 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 240 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.5
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 4, 9:51 PM CDT, 4 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 950 PM CDT THU MAY 4 1989 ...STRONG WINDS AND THUNDERSTORMS POSSIBLE OVER PORTIONS OF SOUTH TEXAS LATE TONIGHT... VERY INTENSE AND SEVERE THUNDERSTORMS HAD ERUPTED OVER PORTIONS OF NORTH TEXAS THIS EVENING. VERY STRONG WINDS...AT TIMES GUSTING IN EXCESS OF 50 MPH...HAD DEVELOPED WELL AHEAD OF THESE THUNDERSTORMS AND WAS MOVING RAPIDLY SOUTHWARD. THE BOUNDARY OF STRONG WINDS MOVED THROUGH ABILENE TEXAS DURING THE PAST HOUR...AND IF THESE STRONG WINDS CONTINUE MOVING SOUTH...COULD REACH THE NORTH PORTIONS OF SOUTH TEXAS LATER TONIGHT...LIKELY AFTER MIDNIGHT. AN UPPER DISTURBANCE MOVING SOUTHEAST THROUGH NORTH TEXAS WAS PRODUCING THE SEVERE THUNDERSTORMS TO THE NORTH. AS THE DISTUBANCE MOVES SOUTHEAST...STRONG THUNDERSTORMS COULD DEVELOP OVER PORTIONS OF SOUTH CENTRAL AND SOUTHEAST TEXAS LATE TONIGHT AND DURING THE PREDAWN HOURS. PERSONS IN SOUTH CENTRAL AND SOUTHEAST TEXAS SHOULD LISTEN TO LATER WEATHER DEVELOPMENTS AND BE ALERT FOR THE POSSIBLITY OF STRONG WINDS AND RAPIDLY DEVELOPING THUNDERSTORMS.
Special weather statement, May 4, 11:23 PM CDT, 2 hours 51 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1123 PM CDT THU MAY 4 1989 ...LINE OF VERY INTENSE THUNDERSTORMS MOVING TOWARD SOUTH TEXAS... VERY DANGEROUS AND FAST MOVING THUNDERSTORMS WERE ACROSS CENTRAL TEXAS FROM NEAR WACO TO NEAR SAN SABA...MOVING TO THE SOUTHEAST AT NEAR 70 MPH. A TORNADO WATCH IS IN EFFECT FOR PORTIONS OF SOUTH CENTRAL AND SOUTHEAST TEXAS UNTIL 5 AM CDT FRIDAY MORNING. ALTHOUGH THE TORNADO WATCH DOES NOT INCLUDE THE SAN ANTONIO METRO AREA AND SURROUNDING HILL COUNTRY AT THE PRESENT TIME...THE LINE OF THUNDERSTORMS WAS DEVELOPING WEST AS IT MOVED RAPIDLY SOUTHEAST. THESE STORMS HAVE PRODUCED WINDS IN EXCESS OF 60 MPH WITHIN AND AHEADu OF THE LINE OF STORMS...ALONG WITH LARGE HAIL AND TORNADOES IN NORTH AND CENTRAL TEXAS THIS EVENING. PERSONS IN SOUTH CENTRAL TEXAS SHOULD REMAIN TUNED TO LOCAL NEWS SOURCES OR NOAA WEATHER RADIO FOR LATER WEATHER DEVELOPMENTS.
Special weather statement, May 4, 11:34 PM CDT, 2 hours 40 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1135 PM CDT THU MAY 4 1989 ...A TORNADO WATCH IS IN EFFECT UNTIL 5AM FOR PORTIONS OF EAST CENTRAL TEXAS... IN THIS AREA THE WATCH INCLUDES THE COUNTIES OF MILAN AND BURLESON... BOTH ARE TO THE EAST AND NORTHEAST OF AUSTIN. AT 1135...RADAR SHOWED A SEVERE LINE OF THUNDERSTORMS FROM NEAR SAN SABA EAST TO THE WACO AREA. THESE STORMS ARE MOVING TOWARD THE SOUTHEAST AT 60 MPH. LARGE HAIL, HIGH WINDS AND TORNADO SIGHTINGS HAVE BEEN REPORTED WITH THOSE STORMS IN THE WACO VICINITY. REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. CONTINUE TO BE ON THE ALERT AND LISTEN FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, May 5, 2:02 AM CDT, 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 200 AM CDT FRI MAY 5 1989 ...TORNADO WATCH IN EFFECT UNTIL 7 AM CDT FRIDAY MORNING FOR MUCH OF OF SOUTH CENTRAL TEXAS... AT 155 AM CDT...WEATHER SERVICE RADAR INDICATED A 20 MILE WIDE LINE OF VERY INTENSE THUNDERSTORMS FROM NORTHWEST OF LLANO TO NORTHEAST OF GEORGETOWN TO EAST OF COLLEGE STATION. OTHER THUNDERSTORMS WERE DEVELOPING FROM NEAR JUNCTION TO NEAR AUSTIN. MOVEMENT WAS TO THE SOUTHEAST AT 45 MPH. WIND GUSTS TO 50 MILES PER HOUR OCCURRED AT COLLEGE STATION AS THE THUNDERSTORMS MOVED THROUGH DURING THE PAST HOUR. IN ADDITION... THESE STORMS HAVE PRODUCED LARGE HAIL AND SOME TORNADOES IN NORTH CENTRAL TEXAS EARLIER TONIGHT. PERSONS IN SOUTH CENTRAL TEXAS SHOULD STAY TUNED TO LATER WEATHER DEVELOPMENTS AND BE PREPARED TO SEEK SAFE SHELTER IF THREATENING WEATHER IS OBSERVED OR A WARNING IS ISSUED FOR YOUR AREA.
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, 2:25 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, 8:35 AM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 70 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.