Alert archive / Texas / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 34, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 9, 1992, 2:28 AM CST for Llano County, Texas. It was in force for 47 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
- Mar 9, 1992, 2:28 AM CST (08:28 UTC)
- Expired
- Mar 9, 1992, 3:15 AM CST
- In force
- 47 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Llano County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 9, 2:50 AM CST | Hail 1.25 | Llano, 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, 8.5 hours before the alert went out and 177 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
- 1010 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 997 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAUS 090828 SVRAUS TXC299-090915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN TX 228 AM CST MON MAR 9 1992 THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 AM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...SOUTHERN LLANO COUNTY AT 224 AM RADAR SHOWED A SEVERE TUNDERSTORM 20 MILES SOUTHWEST OF THE CITY OF LLANO MOVING TO THE NORTHEAST AT 30 MPH. THIS STORM WILL BE AFFECTING THE TOWNS OF OXFORD AND KINGSLAND BETWEEN 240 AND 310 AM. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 8, 6:08 PM CST | Severe Thunderstorm Warning | EWX | Kinney | 67 min |
| Mar 8, 7:55 PM CST | Severe Thunderstorm Warning | EWX | Kinney | 65 min |
| Mar 9, 1:56 AM CST | Severe Thunderstorm Warning | EWX | Gillespie | 34 min |
| Mar 9, 4:42 AM CST | Tornado Warning | EWX | Gillespie | 48 min |
| Mar 9, 5:13 AM CST | Tornado Warning | EWX | Llano | 32 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1992Every severe thunderstorm warning in 1992
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.