Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 152, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Sep 18, 2001, 8:18 PM CDT for Brown County, Texas. It was in force for 57 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 18, 2001, 8:18 PM CDT (01:18 UTC)
- Expired
- Sep 18, 2001, 9:15 PM CDT
- In force
- 57 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 |
|---|---|---|---|
| Sep 18, 8:25 PM CDT | Hail 1 | May, 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, 1.3 hours before the alert went out and 199 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
- 1787 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1487 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.9
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 18, 6:17 PM CDT, 2 hours 1 minute earlier.
Area forecast discussion, Sep 18, 6:17 PM CDT, 2 hours 1 minute before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 617 PM CDT TUE SEP 18 2001 QUICK ZONE UPDATE TO ACCOUNT FOR ONGOING CONVECTION. INCREASED POPS SLIGHTLY ACROSS THE CONCHO VALLEY AND ADDED POPS TO THE NORTHERN EDWARDS PLATEAU. 07
In the hours before
Local storm report, Sep 18, 7:07 PM CDT, 1 hour 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO, TX
707 PM CDT TUE SEP 18 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0630 PM 2 E BLACKWELL TX 1.75 INCH HAIL
09/18/01 NOLANThe office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 7:18 PM CDT | Severe Thunderstorm Warning | SJT | Runnels | 57 min |
| Sep 18, 7:34 PM CDT | Severe Thunderstorm Warning | SJT | Taylor | 56 min |
| Sep 18, 7:54 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 66 min |
| Sep 18, 8:04 PM CDT | Severe Thunderstorm Warning | SJT | Concho | 56 min |
| Sep 18, 8:58 PM CDT | Severe Thunderstorm Warning | SJT | Concho | 62 min |
| Sep 18, 9:18 PM CDT | Severe Thunderstorm Warning | SJT | Brown | 57 min |
| Sep 18, 10:43 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 62 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.