Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 235, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Jul 28, 2002, 6:09 PM CDT for Irion County, Texas. It was in force for 66 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
- Jul 28, 2002, 6:09 PM CDT (23:09 UTC)
- Expired
- Jul 28, 2002, 7:15 PM CDT
- In force
- 66 min
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County Irion County, TX
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 11.2 hours before the alert went out and 136 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
- 717 J/kg
- Mixed-layer CIN
- -267 J/kg
- Mixed-layer LCL
- 1704 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 28, 1:45 PM CDT, 4 hours 24 minutes earlier.
Area forecast discussion, Jul 28, 1:45 PM CDT, 4 hours 24 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 145 PM CDT SUN JUL 28 2002 ...FORECAST CHALLENGE WILL BE THUNDERSTORM CHANCES THROUGH TUESDAY... .CURRENT...LATEST RADAR TRENDS INDICATE SHOWERS AND THUNDERSTORMS DEVELOPING OVER THE WESTERN PORTIONS OF THE FORECAST AREA EARLY THIS AFTERNOON AS SHORT WAVE BEGINS TO WORK ITS WAY INTO THE AREA. MOISTURE IS STILL HERE WITH DEWPOINTS AT 1 PM REMAINING IN THE UPPER 60S TO LOWER 70S WITH WELL MIXED ATMOSPHERE. .SHORT TERM...SHORT WAVE TROUGH WORKS INTO THE AREA. THUS EXPECT THUNDERSTORMS CURRENTLY FORM TO INCREASE IN AREAL COVERAGE THROUGH THE AFTERNOON AND EARLY EVENING. THUNDERSTORMS MAY DISSIPATE SOME AFTER SUNSET...HOWEVER WITH THE LOW LEVEL JET IN PLACE AGAIN TONIGHT CANT RULE OUT THUNDERSTORMS SURVIVING THROUGH THE NIGHT. THINK THE BEST COVERAGE OF SCATTERED VARIETY WILL BE FROM THE CONCHO VALLEY NORTHWARD INTO THE BIG COUNTRY. WITH ISOLATED COVERAGE AT BEST ELSEWHERE. THE WINDS HAVE BEEN RATHER BREEZY ACROSS THE AREA TODAY AND EXPECT THIS TO CONTINUE INTO THE EVENING HOURS...THUS WILL ADD CAUTION ON AREA LAKES TO THE ZONES. .MONDAY THROUGH TUESDAY...AS THE SHORTWAVE TROUGH PASSES BY THE SOUTHERN END IS FORECAST TO GET LEFT BEHIND...THUS LEAVING A WEAKNESS IN THE RIDGE THROUGH TUESDAY. PLAN ON LEAVING SCATTERED POPS ACROSS THE NORTH TAPERING TO ISOLATED BY TUESDAY. ACROSS THE SOUTH...CURRENT ISOLATED MENTION LOOKS TO BE GOOD AND WILL KEEP. TEMPERATURES WILL BE A LITTLE COOLER DUE TO THE CLOUDS AND SOME PRECIP AROUND. .WEDNESDAY THROUGH SUNDAY...LOOKS LIKE THE RIDGE WILL TAKE OVER ON WEDNESDAY...THUS WILL PULL THE CURRENT SLIGHT CHANCE IN FORECAST. HOWEVER THURSDAY THROUGH SUNDAY...THE RIDGE GRADUALLY BUILDS INTO THE CENTRAL PLAINS LEAVING WEST CENTRAL TEXAS ON THE SOUTHERN PERIPHERY OF THIS FEATURE AND GIVING US HOPE FOR AN EASTERLY WAVE. MODELS ALSO INDICATE A FAIRLY WEAK CAP STRENGTH WITH 700MB TEMPERATURES ONLY RUNNING 8C OR BELOW THURSDAY THROUGH SUNDAY. WITH ALL THAT SAID WILL NOT PUT RAIN CHANCES IN JUST YET THAT FAR OUT...BUT MAY HAVE TO IN LATER FORECASTS. ABI 075/093/073/093 3332 SJT 076/094/072/094 3332 JCT 075/093/073/093 2222 .SJT...CAUTION ON AREA LAKES THIS EVENING. 27/BRAZZELL
In the hours before
Special weather statement, Jul 28, 2:21 PM CDT, 3 hours 48 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-282300- WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 221 PM CDT SUN JUL 28 2002 ...ISOLATED NON SEVERE THUNDERSTORMS POSSIBLE TONIGHT... WARM TEMPERATURES IN THE MID LEVELS OF THE ATMOSPHERE WILL SUPPRESS THUNDERSTORM DEVELOPMENT OVER MOST OF WEST CENTRAL TEXAS TONIGHT. A FEW THUNDERSTORMS ARE EXPECTED NEAR AN UPPER DISTURBANCE....NEAR THE WESTERN CONCHO VALLEY AND WESTERN BIG COUNTRY. INSTABILITY SHOULD BE INSUFFICIENT TO SUPPORT SUSTAINED SEVERE THUNDERSTORM DEVELOPMENT. SPOTTER ACTIVATION IS NOT ANTICIPATED. FOR ADDITIONAL INFORMATION PLEASE SEE STATEMENTS AND OUTLOOKS FROM NATIONAL WEATHER SERVICE OFFICES ACROSS TEXAS...OKLAHOMA...AND NEW MEXICO. 14
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 5:21 PM CDT | Severe Thunderstorm Warning | SJT | Haskell, Throckmorton | 54 min |
| Jul 28, 6:03 PM CDT | Tornado Warning | SJT | Throckmorton | 42 min |
| Jul 28, 6:58 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Runnels, Tom Green | 62 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002
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.