Alert archive / Texas / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 8, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 21, 1989, 7:29 AM CST for Milam County, Texas. It was in force for 46 min.
The area
The counties it named.
The facts
- Issued
- Mar 21, 1989, 7:29 AM CST (13:29 UTC)
- Expired
- Mar 21, 1989, 8:15 AM CST
- In force
- 46 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Milam 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
Stephenville/Cla, TX (KSEP), launched 12:00Z, 1.5 hours before the alert went out and 192 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 516 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KAUS 211333
SVRAUS
TXC021-287-331-453-491-211415-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
729 AM CST TUE MAR 21 1989
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH CENTRAL TEXAS
...BASTROP...LEE...MILAM...TRAVIS...WILLIAMSON
AT 730 AM...THUNDERSTORMS WITH PEA TO MARBLE SIZE HAIL SPOTTED
PORTIONS OF WESTERN TRAVIS...NEAR LAKE TRAVIS...EASTERN WILLIAMSON
BETWEEN GEORGETOWN...ROUND ROCK HUTTO AND THRALL. ALSO FROM
THORNDALE TO EAST OF ELGIN AND WEST OF LEXINGTON.
NEWLY DEVELOPING THUNDERSTORMS WERE ALSO FORMING SOUTH OF BASTROP.
ALL WERE MOVING TOWARDS THE NORTHEAST AT NEAR 30 MPH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
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
DON'T 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
Special weather statement, Mar 21, 6:27 AM CST, 1 hour 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 630 AM CST TUE MAR 21 1989 ...DON'T PACK THOSE WINTER CLOTHS AWAY YET...THE FIRST FULL DAY OF SPRING LOOKS ALOT MORE LIKE THE DEAD OF WINTER... AN UNUSALLY STRONG COLD FRONT FOR THIS TIME OF YEAR HAS PUSHED THROUGH SOUTH TEXAS DROPPING TEMPERATURES INTO THE 30S IN THE HILL COUNTRY AND 40S AND 50S OVER MUCH OF THE REST OF SOUTH TEXAS. IN ADDITION THE STRONG WINDS HAVE DROPPED WIND CHILLS TO BETWEEN 10 TO 20 DEGREES IN THE HILL COUNTRY. TO MAKE MATTERS WORSE...AN UPPER LEVEL DISTURBANCE OVER WEST TEXAS IS PRODUCING SCATTERED SHOWERS AND A FEW THUNDERSTORMS RESULTING IN A COLD...WET...AND WINDY MORNING FOR SOUTH TEXANS. EVEN THOUGH TEMPERATURES REMAIN JUST ABOVE FREEZING IN THE HILL COUNTRY... SOME SLEET OR EVEN SNOW FLURRIES COULD BE MIXED IN WITH THE RAIN OVER THE HILL COUNTRY...HOWEVER NO ACCUMULATIONS ARE EXPECTED. BECAUSE OF THE COMBINATION OF COLD...WIND...AND RAIN...ANY OUTDOOR ACTIVITY WILL BE QUITE UNCOMFORTABLE TODAY. PERSONS WITH PETS OR LIVESTOCK ARE URGED TO PROVIDE ADEQUATE SHELTER AND EXTRA FOOD UNTIL THE WEATHER WARMS UP. WARMER WEATHER IS EXPECTED BY WEDNESDAY AFTERNOON AS SKIES CLEAR AND TEMPERATURES CLIMB BACK IN TO THE 60S.
Special weather statement, Mar 21, 6:37 AM CST, 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 630 AM CST TUE MAR 21 1989 ...THUNDERSTORMS MOVING THROUGH THE CAPITAL AREA... AT 630 AM...RADAR SHOWED A LINE OF THUNDERSTORMS EXTENDING FROM JUST WEST OF WACO INTO THE HILL COUNTRY WEST AND NORTHWEST OF AUSTIN. STRONG THUNDERSTORMS ALSO DOTTED AREAS TO THE SOUTH AND EAST OF AUSTIN. NUMEROUS INDICATIONS OF SMALL HAIL...MOSTLY PEA TO MARBLE SIZE...AND BRIEF BUT HEAVY RAINS ACCOMPANIED STORMS OVER BURNET... HAYS...AND BASTROP COUNTIES. JUST AFTER 5AM...BASTROP REPORTED A SIGNIFICANT HAIL STORM JUST NORTH OF THAT CITY. AT 615...THE DPS AT LOMETTA...67 MILES NORTHWEST OF AUSTIN...REPORTED PEA SIZE HAIL 11/2 INCHES DEEP. THE THUNDERSTORMS WERE MOVING TOWARDS THE EAST AT NEAR 30 MPH.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 6:46 PM CST | Severe Thunderstorm Warning | EWX | Hays, Travis | 34 min |
| Mar 20, 7:02 PM CST | Severe Thunderstorm Warning | EWX | Lee | 58 min |
| Mar 20, 8:37 PM CST | Severe Thunderstorm Warning | EWX | Guadalupe | 53 min |
| Mar 20, 10:38 PM CST | Severe Thunderstorm Warning | EWX | Karnes | 52 min |
| Mar 21, 6:45 AM CST | Severe Thunderstorm Warning | EWX | Travis | 60 min |
| Mar 21, 7:29 AM CST | Severe Thunderstorm Warning | EWX | Bastrop, Lee, Travis, Williamson | 46 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.