Alert archive / Texas / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 109, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 15, 1989, 12:33 AM CDT for Gillespie County, Llano County, Texas. It was in force for 57 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
- May 15, 1989, 12:33 AM CDT (05:33 UTC)
- Expired
- May 15, 1989, 1:30 AM CDT
- In force
- 57 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Gillespie County, TX, Llano County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 15, 12:46 AM CDT | Hail 1.75 | Gillespie, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Stephenville/Cla, TX (KSEP), launched 00:00Z, 5.6 hours before the alert went out and 202 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
- 1876 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 779 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 14, 7:32 PM CDT, 5 hours 1 minute before
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</html>Special weather statement, May 14, 8:49 PM CDT, 3 hours 44 minutes before
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</html>Special weather statement, May 15, 12:05 AM CDT, 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1155 PM CDT SUN MAY 14 1989 ...A SEVERE THUNDERSTORM WITH A HISTORY OF TORNADIC ACTIVITY AND LARGE HAIL WAS LOCATED 25 MILES NORTHWEST OF LLANO...JUST WEST OF THE SMALL TOWN OF PONTOTOC AND JUST NORTH OF MASON. IT WAS MOVING TOWARDS THE SOUTHEAST AT 15 MPH. ON ITS PRESENT MOVEMENT...IT SHOULD PASS VERY CLOSE TO PONTOTOC AND MAY CLOSE TO NEAR LLANO BEFORE 2 AM. REMEMBER...A TORNADO WATCH REMAINS OUT UNTIL 3 AM CDT FOR A LARGE PART OF CENTRAL TEXAS. PERSONS IN THE HILL COUNTRY...ESPECIALLY ALONG THE UPPER HIGHLAND LAKES SHOULD BE PREPARED FOR SEVERE THUNDERSTORMS WITH POSSIBLE TORNADOES... LARGE HAIL AND DANGEROUS LIGHTNING. DUE TO THE SIZE AND SLOW MOVEMENT OF THESE STORMS...LOCALIZED FLASH FLOODING WILL BE A DISTINCT LIKELI- HOOD AS THESE STORMS PASS OVER THE HILL COUNTRY SECTIONS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 7:45 PM CDT | Severe Thunderstorm Warning | EWX | Maverick | 60 min |
| May 14, 8:54 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 66 min |
| May 14, 10:10 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 50 min |
| May 14, 10:55 PM CDT | Severe Thunderstorm Warning | EWX | La Salle | 65 min |
| May 15, 1:32 AM CDT | Severe Thunderstorm Warning | EWX | Kendall | 58 min |
| May 15, 2:02 AM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Hays, Travis | 58 min |
| May 15, 3:46 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Hays, Travis | 59 min |
| May 15, 4:20 AM CDT | Flash Flood Warning | EWX | Bastrop, Caldwell, Travis | 115 min |
| May 15, 4:55 AM CDT | Flash Flood Warning | EWX | Fayette, Lee | 2 hr |
| May 15, 7:37 AM CDT | Tornado Warning | EWX | Jackson | 38 min |
| May 15, 8:14 AM CDT | Tornado Warning | EWX | Victoria | 46 min |
| May 15, 6:43 PM CDT | Severe Thunderstorm Warning | EWX | Gillespie | 62 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.