Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 79, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at May 7, 2001, 5:59 PM CDT for McCulloch County, Texas. It was in force for 31 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- May 7, 2001, 5:59 PM CDT (22:59 UTC)
- Expired
- May 7, 2001, 6:30 PM CDT
- In force
- 31 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County McCulloch County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 7, 6:25 PM CDT | Hail 2.5 | Doole, TX | An isolated severe storm dropped hail up to tennis ball size across extreme northwest McCulloch County. The hail broke all of the double pane windows and a skylight on one side of a house, allowing rain water to enter. |
| May 7, 6:35 PM CDT | Hail 1 | Pear Vly, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 11.0 hours before the alert went out and 256 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
- 1636 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 644 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KSJT 072301 SVRSJT TXC307-072330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 559 PM CDT MON MAY 7 2001 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MCCULLOCH COUNTY IN NORTH CENTRAL TEXAS * UNTIL 630 PM CDT * AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHWEST OF PEAR VALLEY...OR ABOUT 20 MILES NORTHWEST OF BRADY...MOVING NORTHEAST AT 20 MPH. HAILSTONES AS LARGE AS NICKELS ARE LIKELY WITH THIS STORM. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING AND STAY AWAY FROM WINDOWS. LAT...LON 3140 9957 3123 9957 3142 9928 3144 9952
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 May 7, 3:15 PM CDT, 2 hours 44 minutes earlier.
Area forecast discussion, May 7, 3:15 PM CDT, 2 hours 44 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 315 PM CDT MON MAY 7 2001 COLD FRONT EXTENDED FROM SOUTH OF MIDLAND....TO SAN ANGELO...THEN NORTHEAST TO ABILENE AND WICHITA FALLS AT 20Z. SOME BOUNDARIES WERE INDICATED MOVING WEST ACROSS THE CONCHO VALLEY...FROM OUTFLOW OF STORMS THAT INITIATED EARLIER THIS MORNING OVER NORTH AND CENTRAL TEXAS. SATELLITE BASED CAPES WERE 3000 J/KG TO 3800 J/KG AT 17Z OVER SOUTHERN HALF OF CWA...WITH SLIGHTLY LOWER OVER NORTHERN SECTIONS (BIG COUNTRY). VERY LITTLE CIN PRESENT...AND A FEW STORMS WERE DEVELOPING NEAR MENARD AND ABILENE. SEVERE STORMS POSSIBLE THROUGH EARLY EVENING. ANOTHER POTENTIAL AREA OF CONCERN IS FLASH FLOOD POTENTIAL...AS STORMS WILL BE VERY SLOW MOVING...AND LOCALIZED AREAS COULD SEE LOCALLIZE HEAVY RAINFALL AMOUNTS...PARTICULARLY AREAS SOUTH OF THE BIG COUNTY. WILL HOLD OFF ON FLASH FLOOD WATCH AS THERE DOES NOT LOOK LIKE A PROCESS FOR SUSTAINED INFLOW...LIKE A STRONG 850 MB JET OVER THE STALLED FRONT. STILL...WILL MONITOR THE POTENTIAL FLOOD SITUATION. FORWARD MOVEMENT FRONT HAS SLOWED DOWN...AN IT APPEARS AREAS SOUTH OF INTERSTATE 20 WILL HAVE THE BEST CHANCE OF CONVECTION THIS AFTERNOON AND EVENING...AS FRONT SLOWLY PUSHES SOUTH AND WASHES OUT IN THE INTERSTATE 10 AREA LATER TONIGHT AND TUESDAY. WILL KEEP FORECAST AREA DRY WEDNESDAY AND THURSDAY...THOUGH WOULD NOT BE SURPRISED TO SEE AN ISOLATED THUNDERSTORM OR TWO. KEEP A SLIGHT CHANCE OF STORMS FRIDAY AND SATURDAY...AS MRF MODELS INDICATES A WEAK SHORTWAVE OVER FRIDAY...AND WEAK FRONT SATURDAY. ABI 058/078/060/080 221- SJT 060/080/060/082 4211 JCT 062/080/060/082 4321 .SJT...NONE. 04
In the hours before
Special weather statement, May 7, 2:30 PM CDT, 3 hours 29 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-072230- WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE SAN ANGELO TX 230 PM CDT MON MAY 7 2001 ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN WEST CENTRAL TEXAS THROUGH THIS EVENING... A COLD FRONT WILL MOVE SLOWLY SOUTH INTO WEST CENTRAL TEXAS THIS AFTERNOON. WITH WARM AND UNSTABLE AIR IN PLACE...SCATTERED THUNDERSTORMS WILL DEVELOP AS THE FRONT APPROACHES AND INTERSECTS WITH OUTFLOW BOUNDARIES WHICH MOVED INTO THE REGION LAST NIGHT. THERE IS A SLIGHT RISK THAT SOME OF THESE STORMS WILL BE SEVERE. THE PRIMARY THREAT FROM THESE STORMS WILL BE LARGE HAIL AND DAMAGING WINDS. WITH FAIRLY WEAK STEERING CURRENTS ALOFT...HEAVY RAIN WILL BE POSSIBLE FROM SLOW MOVING STORMS. SPOTTER ACTIVATION MAY BE REQUIRED. FOR THE SOUTHWEST TEXAS AND SOUTHEAST NEW MEXICO OUTLOOK SEE PRODUCT LBBSPSMAF. FOR THE SOUTH PLAINS OUTLOOK SEE PRODUCT LBBSPSLBB. FOR THE CENTRAL OKLAHOMA OUTLOOK SEE PRODUCT OKCSPSOKC. FOR THE NORTH TEXAS OUTLOOK SEE PRODUCT FTWSPSFTW. FOR THE SOUTH CENTRAL TEXAS OUTLOOK SEE PRODUCT SATSPSSAT. 15
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 2:41 PM CDT | Severe Thunderstorm Warning | SJT | Menard | 49 min |
| May 7, 6:26 PM CDT | Severe Thunderstorm Warning | SJT | McCulloch | 34 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.