Alert archive / Texas / Tornado Warnings in 2001
Tornado Warning 12, NWS San Angelo, TX
NWS San Angelo, TX issued this tornado warning at Oct 12, 2001, 5:09 PM CDT for Brown County, Texas. It was in force for 36 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 12, 2001, 5:09 PM CDT (22:09 UTC)
- Expired
- Oct 12, 2001, 5:45 PM CDT
- In force
- 36 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Brown County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 12, 5:15 PM CDT | Hail 1 | Brownwood, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 12, 3:45 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 10.2 hours before the alert went out and 188 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1743 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
654 WFUS54 KSJT 122209 TORSJT TXC049-122245- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 509 PM CDT FRI OCT 12 2001 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * TORNADO WARNING FOR... BROWN COUNTY IN NORTH CENTRAL TEXAS * UNTIL 545 PM CDT * AT 503 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING TORNADO 9 MILES SOUTH OF MAY...OR ABOUT 8 MILES NORTH OF EARLY...MOVING NORTHEAST AT 20 MPH. ALSO...ANOTHER SEVERE THUNDERSTORM WAS LOCATED 5 MILES SOUTHWEST OF BROOKESMITH...MOVING NORTHEAST AT 20 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... MAY AT 515 PM CDT IN ADDITION TO THE THREAT OF A TORNADO...HAIL UP TO THE SIZE OF GOLF BALLS AND DAMAGING WINDS CAN ALSO BE EXPECTED WITH THESE STORMS. LAT...LON 3186 9905 3173 9890 3184 9878 3203 9890
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Oct 12, 3:00 PM CDT, 2 hours 9 minutes earlier.
Area forecast discussion, Oct 12, 3:00 PM CDT, 2 hours 9 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 300 PM CDT FRI OCT 12 2001 POTENT UPPER LEVEL SYSTEM CONTINUES TO DIG SOUTHWARD INTO SOUTHERN PLAINS AS VERY EVIDENT ON LATEST WV LOOP WITH TROUGH AXIS EXTENDING INTO CENTRAL NM. 850MB WINDS BACKING AND GAINING STRENGTH WITH DEW POINTS INCREASING ACROSS THE CWA. DRYLINE HAS MOVED THROUGH MAF AND IS EXPECTED INTO WESTERN CWA LATE THIS AFTERNOON... AT CURRENT PACE EXPECT COLD FRONT TO ENTER THE NORTHERN BIG COUNTRY AT ABOUT THE SAME TIME. WITH CLOUD COVER DELAYING CONVECTIVE DEVELOPMENT WEST OF CWA... EXPECT INITIATION OF CONVECTIVE ACTIVITY AS FRONT OVERTAKES DRY LINE EARLY THIS EVENING EAST OF A SAN ANGELO TO ABILENE LINE. MESOETA QS CONVERGENCE HITS EASTERN COUNTIES HEAVY THIS EVENING ALONG WITH BEST DYNAMICS FOR SEVERE WEATHER POTENTIAL. QS WRAPS BACK INTO BIG COUNTRY AFTER MIDNIGHT IN ACCORDANCE WITH POSITIONING OF UPPER LOW... BUT WITH BEST DYNAMICS EAST OF THE BIG COUNTRY AT THAT TIME... WILL KEEP THUNDER CONFINED TO HEARTLAND AND NORTHWEST HILL COUNTRY. WITH WESTERN CWA BEING DRY SLOTTED... WILL NOT MENTION POPS IN THAT REGION. EXPECT SUPERCELLS EVOLVING INTO A RAPIDLY MOVING NORTH/SOUTH ORIENTED SQUALL LINE THAT WILL BE EAST OF CWA BEFORE TOMORROW MORNING. WITH NORTHWEST FLOW ALOFT PER UPPER LEVEL RIDGING... EXTENDED TEMPS LOOK SEASONABLE WITH NO PRECIP ON THE HORIZON. PRELIM CCF... ABI 050/065/040/075 2000 SJT 053/068/041/078 1000 JCT 055/070/042/078 4000 .SJT...LAKE CAUTION ALL ZONES TONIGHT. 15
In the hours before
Special weather statement, Oct 12, 2:30 PM CDT, 2 hours 39 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-122330- WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 230 PM CDT FRI OCT 12 2001 ...SEVERE THUNDERSTORMS WILL LIKELY DEVELOP ACROSS WEST CENTRAL TEXAS LATE THIS AFTERNOON AND EVENING... A MOIST AND UNSTABLE AIR MASS WILL REMAIN IN PLACE ACROSS WEST CENTRAL TEXAS THROUGH THIS EVENING. AS AN APPROACHING COLD FRONT AND A SURFACE DRYLINE INTERSECT THIS AIR MASS...SCATTERED THUNDERSTORMS WILL DEVELOP DURING THE LATE AFTERNOON HOURS. THE STORMS WILL LIKELY DEVELOP ALONG A LINE FROM NEAR SWEETWATER TO SAN ANGELO...WITH THE STORMS BECOMING MORE WIDESPREAD AS THEY MOVE EAST. GIVEN THE AMOUNT OF INSTABILITY PRESENT...ANY STORM THAT DOES DEVELOP WILL HAVE THE POTENTIAL OF RAPIDLY BECOMING SEVERE. ALTHOUGH VERY LARGE HAIL AND DAMAGING WIND WILL BE IN THE PRIMARY THREATS ...THERE DOES APPEAR TO BE ENOUGH WIND SHEAR TO ALLOW THE DEVELOPMENT OF ISOLATED TORNADOES AS WELL. THE AREA MOST LIKELY TO SEE SEVERE STORMS IS ACROSS THE HEARTLAND AND NORTHWEST HILL COUNTRY...WHERE A MODERATE RISK OF SEVERE WEATHER EXISTS ALONG AND EAST OF A BROWNWOOD TO BRADY TO JUNCTION LINE. THE STORMS SHOULD RACE QUICKLY EAST...CLEARING ALL OF WEST CENTRAL TEXAS BY MIDNIGHT. SPOTTER ACTIVATION WILL LIKELY BE NEEDED. 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. 07
Special weather statement, Oct 12, 2:35 PM CDT, 2 hours 34 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-122330- WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE SAN ANGELO TX 235 PM CDT FRI OCT 12 2001 ...SEVERE THUNDERSTORMS WILL LIKELY DEVELOP ACROSS WEST CENTRAL TEXAS LATE THIS AFTERNOON AND EVENING... A MOIST AND UNSTABLE AIR MASS WILL REMAIN IN PLACE ACROSS WEST CENTRAL TEXAS THROUGH THIS EVENING. AS AN APPROACHING COLD FRONT AND A SURFACE DRYLINE INTERSECT THIS AIR MASS...SCATTERED THUNDERSTORMS WILL DEVELOP DURING THE LATE AFTERNOON HOURS. THE STORMS WILL LIKELY DEVELOP ALONG A LINE A LINE FROM NEAR ABILENE TO SAN ANGELO... WITH THE STORMS BECOMING MORE WIDESPREAD AS THEY MOVE EAST. GIVEN THE AMOUNT OF INSTABILITY PRESENT...ANY STORM THAT DOES DEVELOP WILL HAVE THE POTENTIAL OF RAPIDLY BECOMING SEVERE. ALTHOUGH VERY LARGE HAIL AND DAMAGING WIND WILL BE IN THE PRIMARY THREATS ...THERE DOES APPEAR TO BE ENOUGH WIND SHEAR TO ALLOW THE DEVELOPMENT OF ISOLATED TORNADOES AS WELL. THE AREA MOST LIKELY TO SEE SEVERE STORMS IS ACROSS THE HEARTLAND AND NORTHWEST HILL COUNTRY...WHERE A MODERATE RISK OF SEVERE WEATHER EXISTS ALONG AND EAST OF A BROWNWOOD TO BRADY TO JUNCTION LINE. GIVEN THE POTENTIALLY DANGEROUS SITUATION...RESIDENTS OF WEST CENTRAL TEXAS ARE ENCOURAGED TO BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. THE STORMS SHOULD RACE QUICKLY EAST...CLEARING ALL OF WEST CENTRAL TEXAS BY MIDNIGHT. SPOTTER ACTIVATION WILL LIKELY BE NEEDED. 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. 07
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 3:54 PM CDT | Severe Thunderstorm Warning | SJT | Brown | 66 min |
| Oct 12, 4:15 PM CDT | Severe Thunderstorm Warning | SJT | Concho | 60 min |
| Oct 12, 4:19 PM CDT | Severe Thunderstorm Warning | SJT | Callahan | 26 min |
| Oct 12, 4:21 PM CDT | Severe Thunderstorm Warning | SJT | Coleman | 54 min |
| Oct 12, 4:29 PM CDT | Tornado Warning | SJT | Brown | 46 min |
| Oct 12, 4:34 PM CDT | Severe Thunderstorm Warning | SJT | McCulloch | 71 min |
| Oct 12, 5:27 PM CDT | Severe Thunderstorm Warning | SJT | Concho | 63 min |
| Oct 12, 5:44 PM CDT | Severe Thunderstorm Warning | SJT | Brown, McCulloch | 61 min |
Nearby
Tornado Warnings in Texas, 2001Every tornado warning in 2001Tornadoes 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.