Alert archive / Texas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 154, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Aug 10, 2003, 6:15 AM CDT for Kendall County, Texas. It was in force for 60 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, 6:15 AM CDT (11:15 UTC)
- Expired
- Aug 10, 2003, 7:15 AM CDT
- In force
- 60 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Kendall County, TX
The radar
The Austin/San Antonio radar (KEWX), 68 km from the middle of the area, began a volume at 11:15 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 00:00Z, 11.3 hours before the alert went out and 216 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
- 3696 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 2205 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 101115 SVRSAT TXC259-101215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 614 AM 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... KENDALL * UNTIL 715 AM CDT * AT 614 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER KENDALIA...OR ABOUT 10 MILES SOUTHWEST OF BLANCO...MOVING SOUTH AT 15 MPH. THE MAIN THREAT WITH THIS STORM WILL BE DAMAGING WINDS IN EXCESS OF 60 MPH...VERY HEAVY RAIN IN A SHORT AMOUNT OF TIME AND INTENSE LIGHTNING. * THE SEVERE THUNDERSTORM WILL BE NEAR... RURAL KENDALL COUNTY AT 630 AM 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 2986 9886 2976 9872 2995 9845 3011 9859 $$
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, 3:55 AM CDT, 2 hours 20 minutes earlier.
Area forecast discussion, Aug 10, 3:55 AM CDT, 2 hours 20 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
355 AM CDT SUN AUG 10 2003
CONVECTION ONGOING OVER SOUTH CENTRAL TEXAS AIDED BY DIFFLUENCE AT
200-250MB AND SURFACE DEWPOINT TEMPS IN THE LOW TO MID 70S. CURRENT
THINKING IS THAT THIS ROUND WILL CONTINUE TO MOVE SOUTH AT 25 MPH
AND DIMINISH LATER THIS MORNING. THEN...AFTER SOME SURFACE HEATING
TODAY...ANOTHER ROUND WILL DEVELOP. LATEST ETA/GFS SOLUTIONS SHOW A
WEAK COLD FRONT PUSHING INTO CENTRAL TEXAS TUESDAY NIGHT. THIS FRONT
WILL SUPPLY ENOUGH CONVERGENCE AT THE SURFACE TO TRIGGER
CONVECTION...WHICH WILL MOVE SOUTH IN THE MEAN FLOW ALOFT...OVER
SOUTH TEXAS.
THE ECMWF/GFS SOLUTIONS CONTINUE TO AGREE ON THE UPPER PATTERN
THROUGH DAY 7...WITH A TREND TO NORMAL OR SLIGHTLY BELOW NORMAL
TEMPS FOR SOUTH CENTRAL TEXAS...AND AN INCREASE IN POPS...ESPECIALLY
ACROSS THE EASTERN HALF OF SOUTH CENTRAL TEXAS...WHERE PWS ARE
FORECAST TO INCREASE TO OVER 2 INCHES BY LATE WED INTO THURSDAY.
11/26
AUS 097/071 097/070 094 073/092 074/092 073/094 072/094
3334444444222
DRT 100/075 098/074 096 075/096 077/096 077/095 077/095
5223332222222
SAT 097/075 097/073 094 075/093 076/093 076/094 075/094
3334444433222
.EWX...NONE.Hazardous weather outlook, Aug 10, 5:40 AM CDT, 35 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.
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.