Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 197, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Oct 23, 1997, 9:10 AM CDT for Brown County, Texas. It was in force for 50 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
- Oct 23, 1997, 9:10 AM CDT (14:10 UTC)
- Expired
- Oct 23, 1997, 10:00 AM CDT
- In force
- 50 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
County Brown County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 23, 9:15 AM CDT | Thunderstorm Wind 52 | Brookesmith, 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 12:00Z, 2.2 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 219 m²/s²
- 0-3 km storm-relative helicity
- 269 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Oct 23, 2:37 AM CDT, 6 hours 33 minutes earlier.
Area forecast discussion, Oct 23, 2:37 AM CDT, 6 hours 33 minutes before
AREA FORECAST DISCUSSION...CORRECTED LAST LINE 1ST PRGPH NATIONAL WEATHER SERVICE SAN ANGELO TX 237 AM CDT THU OCT 23 1997 MAIN ITEM OF CONCERN IN THE NEAR TERM IS A VIGOROUS SHORTWAVE TROF THAT WILL MOVE FROM WESTERN NEW MEXICO TO NORTH CENTRAL TX BY THIS EVENING. THUNDERSTORMS OVER THE PERMIAN BASIN ASSOCIATED WITH THIS FEATURE WILL LIKELY AFFECT THE NORTHERN CWA GIVEN PRESENT RADAR TRENDS. THE MODELS HAVE TRENDED THE TRACK OF THE SHORTWAVE SLIGHTLY NORTH WITH SUCCESSIVE RUNS. AT THIS TIME...COMBO OF FAN/FWC POPS LOOKS BEST FOR THE NORTHERN CWA. NGM POPS NOT FAR OFF FOR CENTRAL AND SOUTHERN AREAS...FINAL POPS SHOULD BE ADJUSTED TO RADAR TRENDS THROUGH 0930Z. BROAD 850 MB TROF WILL MOVE TO THE CENTRAL CWA BY 18Z...WITH DOWNSLOPE AND DRYING OCCURING OVER THE WEST. DECREASING AFTERNOON POPS/PARTIAL CLEARING FROM PREVIOUS FORECAST LOOKS ON TARGET FOR ALL BUT THE FAR EASTERN COUNTIES. NEARLY UNIDIRECTIONAL WEST FLOW AND SUBSIDENCE INTO FRIDAY SHOULD ALLOW GOOD MOMENTUM TRANSPORT TO THE SURFACE. FWC WINDS/TEMPS APPEAR REASONABLE. FAN GUIDANCE SHOWS ITS COOL BIAS IN THE DOWNSLOPE CONDITIONS. ABI 075/058 6- SJT 079/057 30 JCT 080/054 2- 14
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 4:26 AM CDT | Tornado Warning | SJT | Mitchell, Nolan | 49 min |
| Oct 23, 5:08 AM CDT | Tornado Warning | SJT | Fisher | 32 min |
| Oct 23, 5:18 AM CDT | Severe Thunderstorm Warning | SJT | Nolan | 32 min |
| Oct 23, 5:25 AM CDT | Severe Thunderstorm Warning | SJT | Jones, Taylor | 60 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997
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.