Alert archive / Texas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 63, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 25, 1999, 9:18 AM CDT for Edwards County, Texas. It was in force for 62 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
- Apr 25, 1999, 9:18 AM CDT (14:18 UTC)
- Expired
- Apr 25, 1999, 10:20 AM CDT
- In force
- 62 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Edwards County, TX
The radar
The Laughlin AFB radar (KDFX), 79 km from the middle of the area, began a volume at 14:18 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.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 2.3 hours before the alert went out and 86 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
- 1820 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 528 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 14.5
The text
As transmitted, in the capitals the NWS used until 2016.
999 WUUS1 KSAT 251417 RRA SVRSAT TXC137-251520- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 918 AM CDT SUN APR 25 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EDWARDS COUNTY IN TEXAS * UNTIL 1020 AM CDT * AT 915 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR CARTA VALLEY OR 30 MILES SOUTHWEST OF ROCKSPRINGS... MOVING NORTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ROCKSPRINGS AT 1000 AM CDT DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS STAY OUT OF LOW WATER CROSSINGS. PASHOS
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, Apr 25, 6:00 AM CDT, 3 hours 18 minutes before
TXZ171>173-183>194-202>209-217>225-228-260000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 AM CDT SUN APR 25 1999 A FEW LINGERING THUNDERSTORMS MOVING ACROSS SOUTH CENTRAL TEXAS THIS MORNING WILL PRODUCE A SLIGHT RISK OF SEVERE WEATHER...MAINLY IN THE FORM OF HIGH WINDS. THIS AFTERNOON...THE ADDED MOISTURE OF THIS MORNINGS RAIN WILL COUPLE WITH AN UNSTABLE AIRMASS TO PRODUCE ADDITIONAL SCATTERED SHOWERS AND THUNDERSTORMS THIS AFTERNOON INTO THIS EVENING. AGAIN THE RISK OF SEVERE THUNDERSTORMS WILL BE SLIGHT AND MAINLY FROM HIGH WINDS. 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, Apr 25, 6:00 AM CDT, 3 hours 18 minutes before
TXZ171>173-183>194-202>209-217>225-228-260000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 AM CDT SUN APR 25 1999 A FEW LINGERING THUNDERSTORMS MOVING ACROSS SOUTH CENTRAL TEXAS THIS MORNING WILL PRODUCE A SLIGHT RISK OF SEVERE WEATHER...MAINLY IN THE FORM OF HIGH WINDS. THIS AFTERNOON...THE ADDED MOISTURE OF THIS MORNINGS RAIN WILL COUPLE WITH AN UNSTABLE AIRMASS TO PRODUCE ADDITIONAL SCATTERED SHOWERS AND THUNDERSTORMS THIS AFTERNOON INTO THIS EVENING. AGAIN THE RISK OF SEVERE THUNDERSTORMS WILL BE SLIGHT AND MAINLY FROM HIGH WINDS. 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 |
|---|---|---|---|---|
| Apr 24, 9:00 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 40 min |
| Apr 25, 2:21 AM CDT | Severe Thunderstorm Warning | EWX | Maverick | 64 min |
| Apr 25, 2:54 AM CDT | Severe Thunderstorm Warning | EWX | Kinney | 61 min |
| Apr 25, 3:11 AM CDT | Severe Thunderstorm Warning | EWX | Uvalde, Zavala | 79 min |
| Apr 25, 5:03 AM CDT | Severe Thunderstorm Warning | EWX | Bexar | 62 min |
| Apr 25, 7:56 AM CDT | Severe Thunderstorm Warning | EWX | Edwards | 64 min |
| Apr 25, 9:46 AM CDT | Flash Flood Warning | EWX | Edwards, Real | 59 min |
| Apr 25, 10:40 AM CDT | Flash Flood Warning | EWX | Edwards, Real | 2 hr |
| Apr 25, 11:11 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Uvalde | 49 min |
| Apr 25, 11:40 AM CDT | Flash Flood Warning | EWX | Kerr | 3 hr |
| Apr 25, 12:41 PM CDT | Flash Flood Warning | EWX | Real | 2 hr |
| Apr 25, 2:03 PM CDT | Severe Thunderstorm Warning | EWX | Bandera | 47 min |
| Apr 25, 2:45 PM CDT | Severe Thunderstorm Warning | EWX | Medina | 60 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; radar from the NEXRAD Level II archive.