Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 128, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Jun 12, 1997, 10:25 PM CDT for Nolan County, Texas. It was in force for 65 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
- Jun 12, 1997, 10:25 PM CDT (03:25 UTC)
- Expired
- Jun 12, 1997, 11:30 PM CDT
- In force
- 65 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
County Nolan County, TX
The radar
The San Angelo radar (KSJT), 104 km from the middle of the area, began a volume at 03:27 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 |
|---|---|---|---|
| Jun 12, 11:00 PM CDT | Thunderstorm Wind 75 | Blackwell, TX | An intense swift moving thunderstorm from the Conco Valley to the Big Country, packing wind gusts to near 90 mph, the night of the 12th wreaked most of its havoc on the community of Blackwell. The storm felled large trees, damaged roofs, and destroyed at leas |
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
Midland Regional, TX (KMAF), launched 00:00Z, 3.4 hours before the alert went out and 173 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
- 651 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 3203 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
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 Jun 12, 8:49 PM CDT, 1 hour 36 minutes earlier.
Area forecast discussion, Jun 12, 8:49 PM CDT, 1 hour 36 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 849 PM CDT THU JUN 12 1997 BUSY NIGHT AROUND HERE AS STORM MOVING THROUGH SAN ANGELO SHOWED CLEAR ANTICYCLONIC ROTATION...BOTH VISUALLY AND ON KSJT. ANOTHER LINE OF STORMS MOVING INTO CROCKETT COUNTY CONTINUES TO INCREASE AS IT MOVES INTO THE NORTHERN EDWARDS PLATEAU. WITH THE 21Z RUC ONCE AGAIN FORECASTING A LOW LEVEL JET TO INCREASE TO 40 TO 45 KNOTS ACROSS WEST CENTRAL TEXAS...EXPECT THE STORMS TO CONTINUE MOVING EASTWARD ACROSS THE AREA. THEREFORE...FAVOR BUMPING PRECIPITATION CHANCES UP ACROSS THE AREA...WITH BEST CHANCES ACROSS THE SOUTHERN SECTIONS WHERE STORMS ARE IMMINENT. OTHERWISE...REMAINDER OF FORECAST BASICALLY IN GOOD SHAPE. OTHER THAN TWEAKS TO PRECIPITATION...NO OTHER CHANGES SUGGESTED. PMCCULLOUGH
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 7:04 PM CDT | Severe Thunderstorm Warning | SJT | Irion | 61 min |
| Jun 12, 7:48 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 62 min |
| Jun 12, 7:59 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 91 min |
| Jun 12, 9:39 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Sterling, Tom Green | 66 min |
| Jun 12, 9:50 PM CDT | Tornado Warning | SJT | Coke, Tom Green | 65 min |
| Jun 12, 10:16 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 44 min |
| Jun 12, 10:38 PM CDT | Tornado Warning | SJT | Nolan | 62 min |
| Jun 12, 10:57 PM CDT | Tornado Warning | SJT | Taylor | 58 min |
| Jun 12, 11:41 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman, Runnels | 49 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.