Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 46, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 12, 1998, 5:26 PM CST for Caldwell County, Guadalupe County, Texas. It was in force for 64 min. 2 reports 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
- Feb 12, 1998, 5:26 PM CST (23:26 UTC)
- Expired
- Feb 12, 1998, 6:30 PM CST
- In force
- 64 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Caldwell County, TX, Guadalupe County, TX
The radar
The Austin/San Antonio radar (KEWX), 24 km from the middle of the area, began a volume at 23:26 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 12, 5:35 PM CST | Hail 0.75 | Staples, TX | |
| Feb 12, 5:40 PM CST | Hail 0.75 | Martindale, 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
Corpus Christi, TX (KCRP), launched 12:00Z, 11.4 hours before the alert went out and 224 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
- 1486 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
013 WUUS1 KSAT 122332 RRB SVRSAT TXC055-187-130030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 526 PM CST THU FEB 12 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...CALDWELL COUNTY..EASTERN GUADALUPE COUNTY AT 525 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL ENTERING CALDWELL COUNTY NEAR FENTRESS AND STAPLE. MARBLE SIZE HAIL WAS REPORTED IN NEW BRAUNFELS WITH THIS STORM BUT ITS INTENSIFYING AND MAY BE PRODUCING 1 INCH HAIL. FENTRESS... MARTINDALE... PRARIE LEA AND AREAS BETWEEN LULING AND LOCKHART ARE IN THE PATH OF THIS STORM. MOVEMENT WAS EAST AT 30 MPH. PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY OF LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN ALSO OCCUR WITH SEVERE THUNDERSTORMS...FLOODING SMALL STREAMS...LOW AREAS...AND LOW WATER CROSSINGS.
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, Feb 12, 4:32 PM CST, 54 minutes before
TXZ171>173-186>194-203>209-218>225-228-130130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 432 PM CST THU FEB 12 1998 ...SEVERE THUNDERSTORM WARNING FOR LLANO COUNTY EXPIRED AT 4 PM... POLICE REPORTED MARBLE SIZE HAIL WITH THE THUNDERSTORM WHICH MOVED ALONG THE LLANO RIVER WEST OF LLANO. THE STORM HAS DISSIPATED AND NEW STORMS ARE DEVELOPING SOUTH OF THE AREA. STRONG THUNDERSTORMS WILL CONTINUE TO DEVELOP DURING T HE REMAINDER OF THE AFTERNOON WITH MOSTLY PEA OR MARBLE SIZE HAIL WITH STRONGEST STORMS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL OR CABLE TELEVISION STATIONS FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Feb 12, 4:32 PM CST, 54 minutes before
TXZ171>173-186>194-203>209-218>225-228-130130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 432 PM CST THU FEB 12 1998 ...SEVERE THUNDERSTORM WARNING FOR LLANO COUNTY EXPIRED AT 4 PM... POLICE REPORTED MARBLE SIZE HAIL WITH THE THUNDERSTORM WHICH MOVED ALONG THE LLANO RIVER WEST OF LLANO. THE STORM HAS DISSIPATED AND NEW STORMS ARE DEVELOPING SOUTH OF THE AREA. STRONG THUNDERSTORMS WILL CONTINUE TO DEVELOP DURING T HE REMAINDER OF THE AFTERNOON WITH MOSTLY PEA OR MARBLE SIZE HAIL WITH STRONGEST STORMS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL OR CABLE TELEVISION STATIONS FOR THE LATEST WEATHER INFORMATION.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 12, 2:59 PM CST | Severe Thunderstorm Warning | EWX | Llano | 61 min |
| Feb 12, 5:05 PM CST | Severe Thunderstorm Warning | EWX | Zavala | 55 min |
| Feb 12, 5:18 PM CST | Severe Thunderstorm Warning | EWX | Wilson | 57 min |
| Feb 12, 5:40 PM CST | Severe Thunderstorm Warning | EWX | Frio | 50 min |
| Feb 12, 5:48 PM CST | Severe Thunderstorm Warning | EWX | Karnes | 57 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.