Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 145, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Sep 9, 2001, 12:29 AM CDT for Coleman County, Texas. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 9, 2001, 12:29 AM CDT (05:29 UTC)
- Expired
- Sep 9, 2001, 1:15 AM CDT
- In force
- 46 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Coleman County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 9, 1:15 AM CDT | Hail 0.75 | Leaday, 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
Fort Worth, TX (KFWD), launched 00:00Z, 5.5 hours before the alert went out and 235 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
- 3809 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1100 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Sep 8, 2:54 PM CDT, 9 hours 35 minutes earlier.
Area forecast discussion, Sep 8, 2:54 PM CDT, 9 hours 35 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 254 PM CDT SAT SEP 8 2001 SPC PONDERING WATCH IN VICINITY OF STALLED FRONT ACROSS THE BIG COUNTRY. CAPES IN EXCESS OF 4000 J/KG ACROSS THE EASTERN HALF OF THE SJT CWFA. SAVING GRACE STRONG CAP. BUT CAP SOON TO ERODE AS LARGE SCALE VERTICAL MOTION ASSOCIATED WITH POTENT SHORTWAVE TROUGH ARRIVES. STAY TUNED. WITH EXTREME INSTABILITY...COPIOUS MOISTURE AND FAVORABLE DYNAMICS...OPTED FOR LIKELY OR CATEGORICAL POPS ACROSS MOST OF THE CWFA. GOING TO MENTION POSSIBILITY OF LARGE HAIL...DAMAGING WINDS AND LOCALLY HEAVY RAINFALL TONIGHT AS STRONG COLD FRONT PLOWS SOUTHWARD. LINGERING SHOWERS AND THUNDERSTORMS EXPECTED SUNDAY OVER THE SOUTHERN HALF. GRADUAL CLEARING SUNDAY NIGHT AND MONDAY AS HIGH PRESSURE BUILDS AT THE SURFACE. TUESDAY THROUGH SATURDAY BENIGN WITH AMPLE SUNSHINE AND SEASONAL TEMPERATURES. PRELIMS... ABI 063/076/057/082 7000 SJT 065/075/059/085 6200 JCT 068/074/062/084 8400 .SJT...NONE. 17
In the hours before
Local storm report, Sep 8, 11:05 PM CDT, 1 hour 24 minutes before
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</html>The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 7:38 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 37 min |
| Sep 8, 8:04 PM CDT | Severe Thunderstorm Warning | SJT | Callahan | 41 min |
| Sep 8, 8:27 PM CDT | Flash Flood Warning | SJT | Shackelford | 3 hr |
| Sep 8, 8:30 PM CDT | Tornado Warning | SJT | Callahan | 30 min |
| Sep 8, 9:01 PM CDT | Tornado Warning | SJT | Callahan | 44 min |
| Sep 8, 9:18 PM CDT | Severe Thunderstorm Warning | SJT | Brown, Coleman | 57 min |
| Sep 8, 9:33 PM CDT | Tornado Warning | SJT | Brown, Coleman | 42 min |
| Sep 8, 10:12 PM CDT | Tornado Warning | SJT | Brown | 33 min |
| Sep 8, 10:47 PM CDT | Severe Thunderstorm Warning | SJT | Brown | 43 min |
| Sep 8, 10:51 PM CDT | Severe Thunderstorm Warning | SJT | Coleman | 54 min |
| Sep 9, 1:16 AM CDT | Severe Thunderstorm Warning | SJT | Coleman | 29 min |
| Sep 9, 1:45 AM CDT | Severe Thunderstorm Warning | SJT | Coleman | 60 min |
| Sep 9, 7:08 AM CDT | Flash Flood Warning | SJT | Menard | 3 hr |
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.