Alert archive / Texas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 97, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at May 15, 2003, 6:58 PM CDT for Nolan County, Texas. It was in force for 47 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
- May 15, 2003, 6:58 PM CDT (23:58 UTC)
- Expired
- May 15, 2003, 7:45 PM CDT
- In force
- 47 min
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County Nolan 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 15, 6:25 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 12.0 hours before the alert went out and 162 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
- 1371 J/kg
- Mixed-layer CIN
- -267 J/kg
- Mixed-layer LCL
- 1738 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 238 m²/s²
- 0-3 km storm-relative helicity
- 275 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
035
WUUS54 KSJT 152358
SVRSJT
TXC353-160045-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
658 PM CDT THU MAY 15 2003
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NOLAN COUNTY IN NORTHWEST TEXAS
* UNTIL 745 PM CDT
* AT 656 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A DEVELOPING SEVERE THUNDERSTORM OVER CHAMPION...OR ABOUT 9 MILES
SOUTHWEST OF ROSCOE...MOVING NORTHEAST AT 40 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
ROSCOE AT 710 PM CDT
SWEETWATER AT 720 PM CDT
HAIL THE SIZE OF QUARTERS AND WIND GUSTS OF 60 MPH CAN BE EXPECTED
WITH THIS STORM. TAKE SHELTER IN A STURDY BUILDING AND STAY AWAY FROM
WINDOWS.
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.
LAT...LON 3233 10095 3218 10083 3239 10014 3251 10016
3251 10033 3252 10057
$$
27/BRAZZELLWhat 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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 15, 2:21 PM CDT, 4 hours 37 minutes earlier.
Area forecast discussion, May 15, 2:21 PM CDT, 4 hours 37 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 221 PM CDT THU MAY 15 2003 SIGNIFICANT SEVERE WEATHER THREAT FOR LATE THIS AFTERNOON AND TONIGHT...ESPECIALLY ACROSS BIG COUNTRY. PLEASE REFER TO LATEST DAY 1 SPC OUTLOOK FOR DETAILS ON SEVERE DISCUSSION. MODERATE SEVERE RISK DEPICTED IN THE OUTLOOK (ACROSS BIG COUNTRY) FROM I-20 NORTHWARD. SOUTHERN EDGE OF HIGH RISK AREA SLIGHTLY TO THE NORTH OF HASKELL/THROCKMORTON COUNTIES. STILL A COMPLEX SCENARIO IN PINPOINTING THE TIMING AND PLACEMENT OF THUNDERSTORMS. WARM FRONT LIFTING NORTH INTO BIG COUNTRY THIS AFTERNOON. FRONT SHOULD BE LOCATED VICINITY OF NORTHERN BIG COUNTRY OR NEAR RED RIVER BY LATE AFTERNOON. POSITION OF FRONT WILL DETERMINE WHERE THUNDERSTORMS DEVELOP THIS EVENING. STORM DEVELOPMENT OR MOVEMENT INTO BIG COUNTRY MAY HOLD OFF UNTIL LATE THIS EVENING. DRYLINE NEAR THE TX/NM BORDER TO MIX EASTWARD THIS AFTERNOON INTO WESTERN TX...STAYING WEST OF OUR COUNTIES. COMPACT UPPER LOW TO TRACK ACROSS NORTHERN NM THIS AFTERNOON INTO TX PANHANDLE TONIGHT...CONTINUING INTO CENTRAL OK FRIDAY. DRYLINE TO BEGIN A WESTWARD RETREAT EARLY TONIGHT BEFORE WEAK PACIFIC FRONT OVERTAKES IT AND MOVES EAST INTO WEST CENTRAL TX OVERNIGHT. AS UPPER LOW APPROACHES...STRONG LIFT AND INSTABILITY ALONG WITH VERTICAL SHEAR OVER BIG COUNTRY INDICATE POTENTIAL FOR SIGNIFICANT SEVERE EVENT WITH ISOLATED TORNADOES...VERY LARGE HAIL AND DAMAGING WINDS. STRONG CAP FARTHER SOUTH TO INHIBIT ANY STORM DEVELOPMENT THIS AFTERNOON AND EARLY EVENING. STORMS ALSO EXPECTED TO DEVELOP LATE AFTERNOON/EVENING ALONG NORTHERN PART OF DRYLINE TO THE NW OF OUR COUNTIES. FOR TONIGHT... GIVEN THE AMOUNT OF INSTABILITY... IMPRESSIVE LIFT...AND LOW LEVEL JET SETUP ALONG WITH THETA E RIDGE...COULD SEE SOUTHWARD DEVELOPMENT AS PACIFIC FRONT OVERTAKES DRYLINE. COULD HAVE SQUALL LINE MOVE ACROSS BIG COUNTRY...POSSIBLY EXTENDING OR DEVELOPING FARTHER SOUTH. WILL CARRY THE GOING POPS AND SEVERE WORDING IN NEXT SCHEDULED ZONE PACKAGE. WILL RETAIN POPS IN OUR EASTERN COUNTIES FRIDAY. FRONT TO MOVE INTO THAT AREA LATE MORNING OR EARLY AFTERNOON. DRY AND A LITTLE COOLER SATURDAY AS UPPER LOW MOVES AWAY FROM OUR REGION. UPPER RIDGE TO BUILD INTO SOUTHERN/CENTRAL PLAINS OVER WEEKEND INTO MONDAY BEFORE FLATTENING TUESDAY. DRY WITH TEMPERATURES WARMING TO WELL ABOVE NORMAL AGAIN DURING THIS TIME FRAME. AN UPPER TROUGH IS PROGGED TO MOVE FROM NORTHERN PLAINS INTO UPPER MIDWEST AND GREAT LAKES TUESDAY INTO WEDNESDAY. TRAILING PORTION OF ASSOCIATED COLD FRONT PROGGED TO DROP SOUTH ACROSS WEST CENTRAL TX BY TUESDAY. LATEST GFS IS STRONGER WITH THIS FRONT. GFS ALSO HAS WEAK SHORTWAVES MOVING INTO REGION..SUGGESTS ISENTROPIC LIFT AND GENERATES PRECIPITATION INTO NORTHERN HALF OF OUR COUNTIES TUESDAY INTO WEDNESDAY. WILL LOWER TEMPERATURES MIDWEEK AND CARRY MORE CLOUDCOVER...BUT PREFER TO HOLD OFF POPS AND AWAIT ANOTHER MODEL RUN TO CHECK FOR CONSISTENCY. PRELIMINARY CCF ABI 068/092/059/086/062 51000 SJT 071/095/060/088/062 30000 JCT 072/092/062/089/061 32000 .SJT...CAUTION ADVISED ON AREA LAKES BIG COUNTRY ZONES TONIGHT 19
Hazardous weather outlook, May 15, 2:30 PM CDT, 4 hours 28 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-161930- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 230 PM CDT THU MAY 15 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS. .DAY ONE... A MODERATE RISK OF SEVERE WEATHER IS EXPECTED ACROSS THE BIG COUNTRY...WITH ONLY A SLIGHT RISK FOR THE REST OF THE AREA. THE FURTHER NORTH THE BETTER THE CHANCE OF SEVERE WEATHER. VERY LARGE HAIL...DAMAGING WINDS AND ISOLATED TORNADOES ARE EXPECTED WITH THESE STORMS. EXPECT AN AREA OF STORMS TO DEVELOP ACROSS THE PANHANDLE TO NEAR MIDLAND LATE THIS AFTERNOON BEFORE SLIDING EAST THROUGH THE BIG COUNTRY THIS EVENING. .DAYS TWO THROUGH SEVEN... ISOLATED STORMS WILL CONTINUE TO LINGER INTO FRIDAY MORNING IN THE EAST...WITH A FEW OF THOSE POSSIBLY SEVERE. OTHERWISE...NO OTHER SEVERE WEATHER IS EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE LIKELY FOR THE BIG COUNTRY AND MAY BE NECESSARY FOR THE REST OF WEST CENTRAL TEXAS TONIGHT. 24
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 6:39 PM CDT | Tornado Warning | SJT | Fisher | 66 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.