Alert archive / Texas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 176, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Aug 25, 2003, 4:48 PM CDT for Gillespie County, Texas. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 25, 2003, 4:48 PM CDT (21:48 UTC)
- Expired
- Aug 25, 2003, 5:30 PM CDT
- In force
- 42 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Gillespie County, TX
The radar
The Austin/San Antonio radar (KEWX), 124 km from the middle of the area, began a volume at 21:52 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 9.8 hours before the alert went out and 204 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
- 2069 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 704 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 252148 SVRSAT TXC171-252230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 448 PM CDT MON AUG 25 2003 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... GILLESPIE * UNTIL 530 PM CDT * AT 448 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER GILLESPIE COUNTY...OR ABOUT 9 MILES WEST OF FREDERICKSBURG...MOVING NORTHWEST AT 10 MPH. * THIS WARNING INCLUDES LOCATIONS IN AND AROUND... DOSS CHERRY SPRING THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 3019 9902 3039 9874 3063 9915 3044 9937 $$
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.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 25, 2:00 PM CDT, 2 hours 48 minutes earlier.
Area forecast discussion, Aug 25, 2:00 PM CDT, 2 hours 48 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 200 PM CDT MON AUG 25 2003 ONLY MINOR CHANGES TO FORECAST WITH CURRENT SCENARIO OF MOIST FLOW FROM IGNACIO...DAILY HEATING AND WEAK DISTURBANCES TO PRODUCE CHANCE POPS MAINLY AFTERNOON AND EVENING TUESDAY AND WEDNESDAY. POPS LOWER JUST A BIT STARTING THURSDAY. LATEST GFS RUN WEAKENED THE LATE SUMMER COLD FRONT WHICH LAST NIGHTS RUN HAD STRENGTHENED. NOW LOOKS LIKE IT WILL WASH OUT JUST AS APPROACHING OUR CWA. PREVIOUS FORECAST MAINTAINED CLOSE TO NORMAL TRENDS SO FEW ADJUSTMENTS NEEDED. NEXT TROPICAL SYSTEM MAY BE ENTERING THE GULF AROUND NEXT TUESDAY. PRELIMS... AUS 071 092 072 092 2313 DRT 074 093 074 094 4323 SAT 073 092 073 093 2313 .EWX...NONE. 03/6/PM
Hazardous weather outlook, Aug 25, 5:48 AM CDT, 11 hours before
TXZ171>173-183>194-202>209-217>225-228-251100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 548 AM CDT MON AUG 25 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO PRODUCE LOCALLY HEAVY RAINS OVER WESTERN PORTIONS OF SOUTH CENTRAL TEXAS. OTHERWISE NO HAZARDOUS IS EXPECTED. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 5:04 PM CDT | Flash Flood Warning | EWX | Gillespie | 116 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2003Every severe thunderstorm warning in 2003
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.