Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 7, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Mar 1, 1997, 11:18 PM CST for San Saba County, Texas. It was in force for 47 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
- Mar 1, 1997, 11:18 PM CST (05:18 UTC)
- Expired
- Mar 2, 1997, 12:05 AM CST
- In force
- 47 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
County San Saba County, TX
The radar
The Ft Hood radar (KGRK), 145 km from the middle of the area, began a volume at 05:20 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 |
|---|---|---|---|
| Mar 1, 11:40 PM CST | Hail 1 | San Saba, 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, 5.3 hours before the alert went out and 236 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
- 434 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 959 m above ground
- 0-6 km bulk shear
- 86 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
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 Mar 1, 8:39 PM CST, 2 hours 39 minutes earlier.
Area forecast discussion, Mar 1, 8:39 PM CST, 2 hours 39 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 838 PM CST SAT MAR 1 1997 FORECAST LOOKS ON TRACK TONIGHT. STRONG THUNDERSTORMS HAD DEVELOPED IN SOUTHEAST SECTIONS ALONG STRONG COLD FRONT THAT MOVED THROUGH JUNCTION AT 2Z. WIND ADVISORY IS IN EFFECT UNTIL MIDNIGHT FOR NORTHWEST HILL COUNTY AS STRONG GRADIENT EXISTED BETWEEN COLD FRONT AND SURFACE LOW PRESSURE TROUGH FROM SOUTHCENTRAL TO NORTHEAST TEXAS. MORE EXTENSIVE AREA OF LIGHT RAIN WAS DEVELOPING OVER SOUTH AND WESTERN SECTIONS OF FORECAST AREA...THEREFORE RAIN CHANCES SHOULD NOT BE REDUCED. DECKER
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 10:07 PM CST | Tornado Warning | SJT | Kimble | 63 min |
| Mar 1, 10:56 PM CST | Severe Thunderstorm Warning | SJT | McCulloch, Mason, Menard | 64 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; radar from the NEXRAD Level II archive.