Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 5, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Feb 20, 1997, 1:15 PM CST for Concho County, Texas. It was in force for 60 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
- Feb 20, 1997, 1:15 PM CST (19:15 UTC)
- Expired
- Feb 20, 1997, 2:15 PM CST
- In force
- 60 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
County Concho County, TX
The radar
The San Angelo radar (KSJT), 60 km from the middle of the area, began a volume at 19:16 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 20, 1:30 PM CST | Thunderstorm Wind 52 | Eden, 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
Del Rio, TX (KDRT), launched 12:00Z, 7.3 hours before the alert went out and 237 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
- 5 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 526 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- -27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
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 Feb 20, 10:08 AM CST, 3 hours 7 minutes earlier.
Area forecast discussion, Feb 20, 10:08 AM CST, 3 hours 7 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 1006 AM CST THU FEB 20 1997 WIDESPREAD THUNDERSTORMS WERE ALONG AND WEST OF AN ABILENE...EDEN...JUNCTION LINE AT 16Z. ADDITIONAL THUNDERSTORMS DEVELOPMENT WAS OCCURRING NORTHWEST OF DEL RIO...WHICH SHOULD IMPACT WESTERN PORTIONS THE NORTHERN EDWARDS PLATEAU AND CONCHO VALLEY WHICH HAD UP TO 5 INCHES OF RAIN THIS MORNING AND OVERNIGHT. SOME PROBLEMS WITH FLOODING MAY AGAIN OCCUR...AND FLASH FLOOD WATCH MAY NEED TO BE EXTENDED THROUGH THIS AFTERNOON. DECKER
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 10:28 PM CST | Severe Thunderstorm Warning | SJT | Crockett | 62 min |
| Feb 20, 12:10 AM CST | Severe Thunderstorm Warning | SJT | Schleicher | 45 min |
| Feb 20, 1:52 AM CST | Flash Flood Warning | SJT | Tom Green | 2 hr |
| Feb 20, 3:42 AM CST | Severe Thunderstorm Warning | SJT | Tom Green | 33 min |
| Feb 20, 4:04 AM CST | Severe Thunderstorm Warning | SJT | Coke | 26 min |
| Feb 20, 9:05 AM CST | Flash Flood Warning | SJT | San Saba | 3 hr |
| Feb 20, 9:15 AM CST | Flash Flood Warning | SJT | Mason | 3 hr |
| Feb 20, 9:53 AM CST | Flash Flood Warning | SJT | Callahan | 3 hr |
| Feb 20, 12:03 PM CST | Flash Flood Warning | SJT | San Saba | 4 hr |
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; radar from the NEXRAD Level II archive.