Alert archive / Texas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 155, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Aug 10, 2003, 8:04 PM CDT for Val Verde County, Texas. It was in force for 56 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 10, 2003, 8:04 PM CDT (01:04 UTC)
- Expired
- Aug 10, 2003, 9:00 PM CDT
- In force
- 56 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Val Verde County, TX
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 00:00Z, 1.1 hours before the alert went out and 27 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
- 4713 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1475 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 110104 SVRSAT TXC465-110200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 803 PM CDT SUN AUG 10 2003 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... VAL VERDE * UNTIL 900 PM CDT * AT 803 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER VAL VERDE COUNTY...OR ABOUT 9 MILES NORTH OF DEL RIO...MOVING WEST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE... OVER LAKE AMISTAD AT 820 PM IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. LAT...LON 2941 10087 2959 10089 2959 10144 2932 10141 $$
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 10, 3:15 PM CDT, 4 hours 49 minutes earlier.
Area forecast discussion, Aug 10, 3:15 PM CDT, 4 hours 49 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
315 PM CDT SUN AUG 10 2003
ATMOSPHERE HAS BECOME A LITTLE MORE MOIST IN THE MID LEVELS (AND
COOLER) MAKING FOR LESS OF A RUN UP IN TEMPERATURE THAN IN RECENT
DAYS AND PROBABLY RESULT IN FAR LESS (IF ANY) DOWNBURST TYPE
THUNDERSTORM EVENTS. WILL GO SCATTERED ACTVITY THIS EVENING BECOMING
WIDELY SCATTERED TO ISOLATED OVERNIGHT. SIMILAR DAY ON TAP TOMORROW
WITH A LITTLE MORE ACTIVITY AS WEAK DISTURBANCE MOVES THROUGH.
MIGRANT UPPER TROUGH WILL BEGIN MOVING WEST ON TUESDAY WITH
MODERATING DAYTIME TEMPERATURES AND MILD AT NIGHT WITH AIRMASS TYPE
SHOWERS AND THUNDERSTORMS MOSTLY DURING THE AFTERNOON..EVENING HOURS
NEXT WEEK.
PRELIMS...
AUS BE 073/097 072/094 072 02333 0000/0000/0000
EBBBB 091/074 092/073 094/072 094/072 094 33443322222
DRT BB 075/098 076/096 074 02222 0000/0000/0000
BBBBB 095/077 096/077 095/077 095/077 095 22222222222
SAT BE 075/097 074/093 074 02333 0000/0000/0000
EBBBB 092/076 093/076 094/075 094/075 094 33442222222
02/18
.EWX...NONE.Hazardous weather outlook, Aug 10, 5:40 AM CDT, 14 hours 24 minutes before
TXZ171>173-183>194-202>209-217>225-228-111100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 540 AM CDT SUN AUG 10 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY A STALLED OUTFLOW BOUNDARY...MOIST GULF AIR...AND THE JET STREAM WILL COMBINE TO PRODUCE MORE ROUNDS OF SHOWERS AND THUNDERSTORMS TODAY. THERE IS AN ISOLATED RISK OF LARGE HAIL OR DAMAGING WINDS...ESPECIALLY WITH STORMS FROM MID AFTERNOON THROUGH THIS EVENING. A FEW LOCATIONS MAY ALSO PICK UP LOCALLY HEAVY RAIN OF 1 TO 2 INCHES IN LESS THAN TWO HOURS. .DAYS TWO THROUGH SEVEN... DAILY CHANCES OF SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE COMING WEEK. ITS TOO FAR IN ADVANCE TO PREDICT WHICH DAYS WOULD HAVE A HIGHER RISK FOR SEVERE STORMS OR HEAVY RAIN. CHECK THIS PRODUCT EACH DAY FOR THE LATEST INFORMATION. .SPOTTER INFORMATION STATEMENT... SPOTTERS 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 11, 2:11 PM CDT | Severe Thunderstorm Warning | EWX | Hays | 64 min |
| Aug 11, 2:12 PM CDT | Severe Thunderstorm Warning | EWX | Hays | 63 min |
| Aug 11, 2:18 PM CDT | Severe Thunderstorm Warning | EWX | Comal | 57 min |
| Aug 11, 2:36 PM CDT | Severe Thunderstorm Warning | EWX | Fayette, Lee | 54 min |
| Aug 11, 3:00 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 60 min |
| Aug 11, 3:08 PM CDT | Severe Thunderstorm Warning | EWX | Guadalupe | 52 min |
| Aug 11, 3:32 PM CDT | Severe Thunderstorm Warning | EWX | Medina | 58 min |
| Aug 11, 3:41 PM CDT | Tornado Warning | EWX | Medina | 34 min |
| Aug 11, 3:45 PM CDT | Severe Thunderstorm Warning | EWX | Fayette, Lavaca | 60 min |
| Aug 11, 3:58 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 62 min |
| Aug 11, 4:05 PM CDT | Severe Thunderstorm Warning | EWX | Fayette, Lavaca | 40 min |
| Aug 11, 4:13 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt | 62 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.