Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 47, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 12, 1998, 5:40 PM CST for Frio County, Texas. It was in force for 50 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
- Feb 12, 1998, 5:40 PM CST (23:40 UTC)
- Expired
- Feb 12, 1998, 6:30 PM CST
- In force
- 50 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Frio County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 12, 6:20 PM CST | Hail 0.75 | Dilley, 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, 11.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1761 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 278 m²/s²
- 0-3 km storm-relative helicity
- 259 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
059 WUUS1 KSAT 122342 RRA SVRSAT TXC163-130030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 540 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 LOCATION... IN SOUTH CENTRAL TEXAS ...FRIO COUNTY RADAR INDICATED A SEVERE THUNDERSTORM MOVING INTO WESTERN FRIO COUNTY. THIS STORM WAS MOVING SOUTHEAST AT 25 TO 30 MPH AND WILL AFFECT THE TOWN OF DILLEY IN THE NEXT HALF HOUR. RESIDENTS OF SOUTHWESTERN FRIO COUNTY SHOULD MOVE INDOORS NOW. SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH. THESE WINDS BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES... SOMETIMES BUILDINGS. VERY LARGE HAIL CAN INJURE ANYONE CAUGHT OUTSIDE.
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, 1 hour 8 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, 1 hour 8 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, 5:30 PM CST, 10 minutes before
TXZ171>173-183>194-202>209-217>225-228-131200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 PM CST THU FEB 12 1998 SCATTERED THUNDERTORMS THIS EVENING..OVER EASTERN SECTIONS OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS..COULD BECOME SEVERE PRODUCING LARGE HAIL AND DAMAGING WINDS. RAINFALL IN THIS AREA WILL AVERAGE 1/4 TO 1/2 INCH. THE CLEARING SKIES AND LIGHT WINDS WILL ALLOW AREAS OF DENSE FOG TO FORM OVER THE HILL COUNTRY TOWARD MORNING. RETURNING CLOUDS AND MOIST SOUTHERLY WINDS FRIDAY WILL GENERATE DRIZZLE WEST OF THE SABINAL RIVER. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT: HTTP://WWW.SRH.NOAA.GOV/EWX
Special weather statement, Feb 12, 5:30 PM CST, 10 minutes before
TXZ171>173-183>194-202>209-217>225-228-131200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 PM CST THU FEB 12 1998 SCATTERED THUNDERTORMS THIS EVENING..OVER EASTERN SECTIONS OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS..COULD BECOME SEVERE PRODUCING LARGE HAIL AND DAMAGING WINDS. RAINFALL IN THIS AREA WILL AVERAGE 1/4 TO 1/2 INCH. THE CLEARING SKIES AND LIGHT WINDS WILL ALLOW AREAS OF DENSE FOG TO FORM OVER THE HILL COUNTRY TOWARD MORNING. RETURNING CLOUDS AND MOIST SOUTHERLY WINDS FRIDAY WILL GENERATE DRIZZLE WEST OF THE SABINAL RIVER. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT: HTTP://WWW.SRH.NOAA.GOV/EWX
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, 5:26 PM CST | Severe Thunderstorm Warning | EWX | Caldwell, Guadalupe | 64 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.