Alert archive / Texas / Tornado Warnings in 1998
Tornado Warning 16, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Mar 7, 1998, 4:39 PM CST for Llano County, Texas. It was in force for 51 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 7, 1998, 4:39 PM CST (22:39 UTC)
- Expired
- Mar 7, 1998, 5:30 PM CST
- In force
- 51 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 7, 4:40 PM CST | Hail 1.75 | 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.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 10.7 hours before the alert went out and 255 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
- 28 J/kg
- Mixed-layer CIN
- -414 J/kg
- Mixed-layer LCL
- 527 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 254 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
720 WFUS1 KSAT 072238 RRA TORSAT TXC299-072330- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 439 PM CST SAT MAR 7 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 530 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...LLANO COUNTY AT 440 PM NATIONAL WEATHER SERVICE RADAR INDICATED A DEVELOPING TORNADO 5 MILES EAST OF LLANO. THE STORM IS MOVING EAST AT 30 MILES AN HOUR. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER YOUR HEAD.
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, Mar 7, 4:27 PM CST, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
427 PM CST SAT MAR 07 1998
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0415 PM LLANO TX 1.75 INCH HAIL
03/07/98 LLANO 8 TO 9 MILES WEWT OF
LLANO NEAR HWY 152The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 4:04 PM CST | Severe Thunderstorm Warning | EWX | Llano | 56 min |
| Mar 7, 4:13 PM CST | Severe Thunderstorm Warning | EWX | Gillespie | 62 min |
| Mar 7, 4:51 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 69 min |
| Mar 7, 5:01 PM CST | Severe Thunderstorm Warning | EWX | Blanco | 44 min |
| Mar 7, 5:08 PM CST | Tornado Warning | EWX | Blanco | 52 min |
| Mar 7, 5:35 PM CST | Severe Thunderstorm Warning | EWX | Hays, Travis | 40 min |
Nearby
Tornado Warnings in Texas, 1998Every tornado warning in 1998Tornadoes in 1998
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.