Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 66, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Apr 24, 2002, 8:01 PM CDT for Menard County, Texas. It was in force for 44 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
- Apr 24, 2002, 8:01 PM CDT (01:01 UTC)
- Expired
- Apr 24, 2002, 8:45 PM CDT
- In force
- 44 min
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County Menard 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, 1.0 hours before the alert went out and 181 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
- 1229 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 2210 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- -20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KSJT 250101 SVRSJT TXC327-250145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 801 PM CDT WED APR 24 2002 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MENARD COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 845 PM CDT * AT 756 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES EAST OF FORT MCKAVETT...OR ABOUT 17 MILES SOUTHWEST OF MENARD...MOVING SOUTHEAST AT 15 MPH. SEVERE THUNDERSTORMS PRODUCE LARGE HAIL...DAMAGING WINDS...DANGEROUS LIGHTNING...AND VERY HEAVY RAINFALL. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. LAT...LON 3092 10000 3084 10012 3071 10007 3072 9981
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 Apr 24, 2:41 PM CDT, 5 hours 20 minutes earlier.
Area forecast discussion, Apr 24, 2:41 PM CDT, 5 hours 20 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION...CORRECTED CCF FOR JCT NATIONAL WEATHER SERVICE SAN ANGELO TX 241 PM CDT WED APR 24 2002 MAIN CHALLENGE FOR THIS FORECAST PACKAGE WILL BE RAIN CHANCES AND TIMING IN THE NEXT 48-72 HOURS. ETA AND AVN MODELS SHOW DIFFERENCES IN TIMING AND PLACEMENT OF QPF ACROSS OUR CWFA...AND HAVE LOW CONFIDENCE IN A SPECIFIC SOLUTION. DECENT COLD FRONT FOR THIS TIME OF YEAR WAS MOVING SOUTHWARD INTO OUR CENTRAL COUNTIES EARLY THIS AFTERNOON. THIS FRONT TO MOVE THROUGH OUR SOUTHERN COUNTIES DURING THE EVENING/EARLY TONIGHT BEFORE STALLING IN SOUTH TX THURSDAY. FRONT TO LIFT BACK NORTH AS A WARM FRONT LATE THURSDAY NIGHT/FRIDAY. EMBEDDED SHORTWAVE IMPULSES ALOFT TO EJECT ENE ACROSS NORTHERN MEXICO INTO TX/SOUTHERN PLAINS THURSDAY INTO FRI. UPPER LOW TO MOVE ONTO SOUTHERN CA COAST THURSDAY NIGHT BEFORE OPENING INTO THE FLOW AND EJECTING ENE FRIDAY...REACHING SOUTHERN/CENTRAL PLAINS BY EARLY SATURDAY. WILL MONITOR WIND TRENDS BEHIND THE COLD FRONT THIS AFTERNOON...AND WILL PROBABLY CARRY AN EVENING OR NIGHTTIME MENTION OF BREEZY CONDITIONS FOR AT LEAST THE BIG COUNTRY. AFTER COLD FRONTAL PASSAGE TONIGHT...ISENTROPIC LIFT TO BEGIN AND INCREASE LATE THURSDAY INTO THURSDAY NIGHT. AS LOWER LEVELS SATURATE...EXPECT WIDESPREAD LOW CLOUD FORMATION OVERNIGHT WITH LOW CLOUD PERSISTENCE INTO FRIDAY. TIMING AND STRENGTH UNCERTAINTY WITH EMBEDDED IMPULSES ALOFT MAKE POP SPECIFICATION DIFFICULT FOR OUR AREA. WILL CONTINUE WITH A LOW POP OVERNIGHT FOR CENTRAL AND SOUTHERN COUNTIES. AT THIS TIME APPEARS THE BETTER CHANCE FOR ELEVATED SHOWERS/STORMS WILL BE THURSDAY AND THURSDAY NIGHT...AS SHORTWAVE ENERGY AFFECTS OUR REGION AND LOW LEVEL JET DEVELOPS THURSDAY NIGHT. MUCH COOLER TEMPERATURES EXPECTED THURSDAY (ESPECIALLY WITH CLOUDCOVER)...AND WILL LEAN CLOSER TO AVN NUMBERS FOR HIGHS. LARGE DIFFERENCE SHOWN IN GUIDANCE HIGHS FOR FRIDAY. DESPITE RETREATING WARM FRONT...SHOULD SEE CONSIDERABLE CLOUDCOVER. HIGHS CLOSER TO WARMER FWC LOOK MORE REASONABLE AT THIS POINT. CHANCE FOR SHOWERS/THUNDERSTORMS CONTINUES FRIDAY AND FRIDAY NIGHT. WARM FRONT TO RETREAT NORTH ACROSS TX FRIDAY. SHOULD SEE ADDITIONAL STORMS DEVELOP ALONG DRYLINE VICINITY OF TX/NM BORDER BY LATE FRI AFTERNOON...WITH APPROACH OF MAIN UPPER SHORTWAVE. WITH A LOW LEVEL JET AND THETA E RIDGE PROGGED ACROSS OUR REGION FRIDAY NIGHT...MAY SEE STORMS EVOLVE INTO A SQUALL LINE ALONG THE DRYLINE AS IT PUSHES EAST INTO OUR CWFA. IF THE SYSTEM IS SLOWER MOVING THAN PROGGED... WOULD NEED TO ADD A RESIDUAL POP FOR OUR EASTERN COUNTIES SATURDAY MORNING. DRIER AND WARMER FOR SATURDAY AS SHORTWAVE QUICKLY MOVES AWAY TO THE NORTHEAST. AVN TRIES TO INCREASE MOISTURE IN RETURN FLOW BY SUNDAY...BUT NOT ANTICIPATING MORE THAN SOME CLOUDS AT THIS POINT. NO CHANGES PLANNED FURTHER INTO THE EXTENDED...WITH WARM AND DRY CONDITIONS ANTICIPATED FOR WEST CENTRAL TX. ABI 053/059/053/073 0332 SJT 057/063/056/077 1332 JCT 062/068/058/079 2332 .SJT...CAUTION ON AREA LAKES FOR BIG COUNTRY...CONCHO VALLEY AND HEARTLAND TONIGHT. 19
In the hours before
Special weather statement, Apr 24, 2:29 PM CDT, 5 hours 32 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-242315- WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 229 PM CDT WED APR 24 2002 ...HAZARDOUS WEATHER IS NOT EXPECTED ACROSS WEST CENTRAL TEXAS TONIGHT... A WARM AND UNSTABLE AIR MASS WILL REMAIN IN PLACE ACROSS WEST CENTRAL TEXAS THROUGH TONIGHT. A WARM LAYER OF AIR ALOFT HAS ACTED AS A CAP AND PREVENTED THUNDERSTORM DEVELOPMENT SO FAR TODAY. THIS CAP IS EXPECTED TO REMAIN STRONG...AND PREVENT THUNDERSTORM DEVELOPMENT ACROSS MOST AREAS. HOWEVER...CONVERGENCE ALONG A COLD FRONT MOVING THROUGH WEST CENTRAL TEXAS THIS AFTERNOON AND EVENING MAY PROVIDE ENOUGH SUPPORT TO BREAK THROUGH THE CAP OVER THE EASTERN SECTIONS OF THE AREA...WHERE THE CAP WILL BE THE WEAKEST. THE MOST LIKELY AREA TO SEE ANY OF THESE STORMS WILL BE EAST OF AN ABILENE TO SAN ANGELO LINE. ANY STORM THAT DOES DEVELOP WILL HAVE THE POTENTIAL OF BECOMING QUITE STRONG..PRODUCING SMALL HAIL...AND DANGEROUS LIGHTNING. SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT. FOR ADDITIONAL INFORMATION PLEASE SEE STATEMENTS AND OUTLOOKS FROM NATIONAL WEATHER SERVICE OFFICES ACROSS TEXAS...OKLAHOMA...AND NEW MEXICO.
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 11:58 AM CDT | Flash Flood Warning | SJT | Shackelford | 2 hr |
| Apr 25, 12:04 PM CDT | Flash Flood Warning | SJT | Shackelford | 116 min |
| Apr 25, 12:52 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 38 min |
| Apr 25, 1:14 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 16 min |
| Apr 25, 2:00 PM CDT | Flash Flood Warning | SJT | Shackelford | 3 hr |
| Apr 25, 2:35 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 55 min |
| Apr 25, 5:01 PM CDT | Flash Flood Warning | SJT | Shackelford | 3 hr |
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.