Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 178, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Oct 10, 2001, 8:16 PM CDT for Callahan County, Taylor County, Texas. It was in force for 29 min. 1 report 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
- Oct 10, 2001, 8:16 PM CDT (01:16 UTC)
- Expired
- Oct 10, 2001, 8:45 PM CDT
- In force
- 29 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Callahan County, TX, Taylor County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 10, 8:30 PM CDT | Hail 1.75 | Abilene, TX | Golf ball size hail reported south of Abilene in central Taylor County. |
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
Midland Regional, TX (KMAF), launched 00:00Z, 1.3 hours before the alert went out and 244 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
- 757 J/kg
- Mixed-layer CIN
- -144 J/kg
- Mixed-layer LCL
- 1372 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
268 WUUS54 KSJT 110117 SVRSJT TXC059-441-110145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 816 PM CDT WED OCT 10 2001 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... TAYLOR COUNTY IN NORTH CENTRAL TEXAS CALLAHAN COUNTY IN NORTH CENTRAL TEXAS * UNTIL 845 PM CDT * AT 814 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER POTOSI...OR ABOUT 7 MILES SOUTH OF ABILENE...MOVING NORTHEAST AT 20 MPH. ONE INCH DIAMETER HAIL WAS REPORTED IN POTOSIE AT 815 PM. * THE SEVERE THUNDERSTORM WILL BE NEAR... EULA AT 825 PM CDT CLYDE AT 840 PM CDT THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. MOVE INTO A STURDY BUILDING AND STAY AWAY FROM WINDOWS. LAT...LON 3235 9983 3223 9968 3247 9936 3252 9961
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 Oct 10, 7:10 PM CDT, 1 hour 6 minutes earlier.
Area forecast discussion, Oct 10, 7:10 PM CDT, 1 hour 6 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 710 PM CDT WED OCT 10 2001 ...SEVERE THUNDERSTORM WATCH NUMBER 769 HAS EXPIRED... AFTER COORDINATING WITH THE STORM PREDICTION CENTER...HAVE ALLOWED SEVERE THUNDERSTORM WATCH NUMBER 769 TO EXPIRE AS OF 7 PM CDT THIS EVENING. ELEVATED CONVECTION CONTINUES BEHIND THE FRONT. HOWEVER...BASED ON LATEST WSR-88D AND SATELLITE DATA APPEARS THUNDERSTORMS ARE PULSING. THUS FAR...WE HAVE NOT VERIFIED OUR WARNING FOR RUNNELS COUNTY...WHICH EXPIRED AT 630 PM CDT. THE WINTERS POLICE REPORTED HEAVY RAIN FROM THE THUNDERSTORM BUT NO HAIL. WE EXPECT MOST THUNDERSTORMS WHICH MAY DEVELOP DURING THE NEXT FEW HOURS TO REMAIN BELOW SEVERE LIMITS WITH ONLY A FEW POSSIBLY PRODUCING HAIL SLIGHTLY EXCEEDING SEVERE LIMITS. WE BELIEVE THE POTENTIAL FOR WIDESPREAD SEVERE WEATHER HAS DIMINISHED TO THE POINT WHERE CONTINUING THE SEVERE WEATHER WATCH IS UNNECESSARY. HOWEVER...WE WILL CONTINUE TO MONITOR THIS SITUATION CLOSELY...AND IF NECESSARY...WE WILL COORDINATE WITH THE STORM PREDICTION CENTER AGAIN FOR THE POSSIBILITY OF ANOTHER WATCH. WILL UPDATE CURRENT PACKAGE TO REMOVE WATCH WORDING AND REDUCE POPS AS APPROPRIATE. THANKS TO SPC FOR THE GREAT SUPPORT...AS USUAL...AND FOR THE COORDINATION. .SJT...NONE. 23/HUBER **** 310 PM CDT WED OCT 10 2001 DISCUSSION FOLLOWS **** AFTER A BUSY MORNING...STORMS HAVE REDEVELOPED AGAIN THIS AFTERNOON. THUS...WILL KEEP THIS SHORT. COLD FRONT MOVING THROUGH WEST CENTRAL TEXAS...WITH SHOWERS AND STORMS WIDESPREAD ALONG AND NORTH OF THE FRONT. LAST LOOK AT RADAR SHOWED THE FRONT PROGRESSING FROM ABOUT ABILENE TO MIDLAND AT 1945Z. VERY UNSTABLE AIR MASS SOUTH OF THE FRONT SO CONVECTION SHOULD GRADUALLY BUILD SOUTH WITH THE FRONT. SHORTWAVE EVIDENT ON WATER VAPOR IMAGERY ACROSS THE SOUTHWEST US WILL ALSO PULL ACROSS... ENHANCING LIFT EVEN MORE. WILL CONTINUE WITH LIKELY POPS. GIVEN HIGH PRECIPITABLE WATER VALUES AND SOME TRAINING OF CELLS ...WENT AHEAD AND MENTIONED LOCALLY HEAVY RAINFALL AS WELL. SHORTWAVE PULLS ACROSS EARLY THURSDAY SO A FEW SHOWERS OR STORMS MAY LINGER INTO THE MORNING HOURS. DRY AND SLIGHTLY COOLER CONDITIONS THROUGH EARLY FRIDAY...BEFORE ANOTHER POTENT SHORTWAVE AND COLD FRONT DIVES INTO THE SOUTHERN PLAINS BY LATE FRIDAY. WILL CONTINUE CHANCE POPS. PRELIM CCF... ABI 054/073/058/075 7200 SJT 056/074/058/076 6200 JCT 060/076/057/077 6300 .SJT...NONE. 07
In the hours before
Local storm report, Oct 10, 2:57 PM CDT, 5 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO, TX
257 PM CDT WED OCT 10 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0252 PM ANSON TX 1.75 INCH HAIL
10/10/01 JONES GOLF BALL SIZE HAIL
07Local storm report, Oct 10, 3:29 PM CDT, 4 hours 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO, TX
329 PM CDT WED OCT 10 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0305 PM 2W AVOCA TX .88 INCH HAIL
10/10/01 JONES NICKEL SIZE HAIL
07Local storm report, Oct 10, 4:00 PM CDT, 4 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO, TX
400 PM CDT WED OCT 10 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0345 PM ALBANY TX 1.75 INCH HAIL
10/10/01 SHACKELFORD GOLF BALL SIZE HAIL
07Local storm report, Oct 10, 8:02 PM CDT, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO, TX
802 PM CDT WED OCT 10 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0515 PM MORAN TX .75 INCH HAIL
10/10/01 SHACKELFORD DIME SIZE HAIL
04The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 10, 9:55 PM CDT | Severe Thunderstorm Warning | SJT | Irion | 65 min |
| Oct 10, 10:02 PM CDT | Severe Thunderstorm Warning | SJT | Sterling | 43 min |
| Oct 10, 10:58 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 62 min |
| Oct 10, 11:44 PM CDT | Severe Thunderstorm Warning | SJT | Jones | 61 min |
| Oct 10, 11:59 PM CDT | Severe Thunderstorm Warning | SJT | Concho | 61 min |
| Oct 11, 12:19 AM CDT | Severe Thunderstorm Warning | SJT | Haskell | 56 min |
| Oct 11, 12:27 AM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 63 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.