Alert archive / Texas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 48, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 27, 1999, 6:55 PM CST for Frio County, Texas. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 27, 1999, 6:55 PM CST (00:55 UTC)
- Expired
- Mar 27, 1999, 8:00 PM CST
- In force
- 65 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Frio County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 0.9 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
- 603 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -190 m²/s²
- 0-3 km storm-relative helicity
- -191 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.5
The text
As transmitted, in the capitals the NWS used until 2016.
999 WUUS1 KSAT 280055 RRA SVRSAT TXC019-163-325-280155- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 655 PM CST SAT MAR 27 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BANDERA COUNTY IN TEXAS MEDINA COUNTY IN TEXAS FRIO COUNTY IN TEXAS * UNTIL 800 PM CST * AT 655 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTHERN UVALDE COUNTY EXTENDING SOUTH INTO THE EXTREME SOUTHWEST PORTIONS OF MEDINA COUNTY...AND THEN TRAILING SOUTHWEST INTO WESTERN ZAVALA COUNTY...MOVING NORTHEAST AT 35 TO 40 MPH.. DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS
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, Mar 27, 6:00 PM CST, 55 minutes before
TXZ171>173-183>194-202>209-217>225-228-281200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CST SAT MAR 27 1999 STRONG THUNDERSTORMS WILL MOVE ACROSS SOUTH CENTRAL TEXAS TONIGHT WITH THE THREAT OF HEAVY RAIN...DEADLY LIGHTNING...AND STRONG WINDS. RAINFALL RATES OF ONE INCH PER HOUR WILL BE WIDESPREAD. 2 INCHES PER HOUR ARE POSSIBLE IN THE STRONGER STORMS. THE LINE OF THUNDERSTORMS WILL MOVE EAST OF SOUTH CENTRAL TEXAS BY MORNING. ADDITIONAL SHOWERS ARE EXPECTED ON SUNDAY WITH RAINFALL AMOUNTS GENERALLY ONE HALF INCH ARE LESS. 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. FOR INFORMATION ON WEATHER THREATS IN AREAS SURROUNDING SOUTH CENTRAL TEXAS, PLEASE REFER TO THE HAZARDOUS WEATHER OUTLOOKS FROM NWS OFFICES IN MIDLAND, SAN ANGELO, FORT WORTH, HOUSTON/GALVESTON AND CORPUS CHRISTI.
Special weather statement, Mar 27, 6:00 PM CST, 55 minutes before
TXZ171>173-183>194-202>209-217>225-228-281200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CST SAT MAR 27 1999 STRONG THUNDERSTORMS WILL MOVE ACROSS SOUTH CENTRAL TEXAS TONIGHT WITH THE THREAT OF HEAVY RAIN...DEADLY LIGHTNING...AND STRONG WINDS. RAINFALL RATES OF ONE INCH PER HOUR WILL BE WIDESPREAD. 2 INCHES PER HOUR ARE POSSIBLE IN THE STRONGER STORMS. THE LINE OF THUNDERSTORMS WILL MOVE EAST OF SOUTH CENTRAL TEXAS BY MORNING. ADDITIONAL SHOWERS ARE EXPECTED ON SUNDAY WITH RAINFALL AMOUNTS GENERALLY ONE HALF INCH ARE LESS. 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. FOR INFORMATION ON WEATHER THREATS IN AREAS SURROUNDING SOUTH CENTRAL TEXAS, PLEASE REFER TO THE HAZARDOUS WEATHER OUTLOOKS FROM NWS OFFICES IN MIDLAND, SAN ANGELO, FORT WORTH, HOUSTON/GALVESTON AND CORPUS CHRISTI.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 6:25 PM CST | Tornado Warning | EWX | Uvalde, Zavala | 60 min |
| Mar 27, 6:55 PM CST | Severe Thunderstorm Warning | EWX | Bandera, Medina | 65 min |
| Mar 27, 7:06 PM CST | Tornado Warning | EWX | Medina | 59 min |
| Mar 27, 7:40 PM CST | Severe Thunderstorm Warning | EWX | Atascosa, Bexar | 80 min |
| Mar 27, 7:40 PM CST | Severe Thunderstorm Warning | EWX | Kendall | 80 min |
| Mar 27, 8:25 PM CST | Severe Thunderstorm Warning | EWX | Comal, Guadalupe, Wilson | 80 min |
| Mar 27, 8:55 PM CST | Severe Thunderstorm Warning | EWX | Hays | 85 min |
| Mar 27, 8:55 PM CST | Severe Thunderstorm Warning | EWX | Karnes, Wilson | 85 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.