Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 129, NWS San Angelo, TX

June 12, 1997Callahan County, Coleman County, Runnels County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Jun 12, 1997, 11:41 PM CDT for Callahan County, Coleman County, Runnels County, Texas. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 12, 1997, 11:41 PM CDT (04:41 UTC)
Expired
Jun 13, 1997, 12:30 AM CDT
In force
49 min
Issued by
NWS San Angelo, TX
Area
Whole counties

Counties Callahan County, TX, Coleman County, TX, Runnels County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 4.7 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.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 1997-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3593 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 1997-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
3593 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1254 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
1.4
Supercell composite
10.4

Open this sounding in Storm Lab

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, 2 hours 52 minutes earlier.

Area forecast discussion, Jun 12, 8:49 PM CDT, 2 hours 52 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.

IssuedProductOfficeCountiesLasted
Jun 12, 7:04 PM CDTSevere Thunderstorm WarningSJTIrion61 min
Jun 12, 7:48 PM CDTSevere Thunderstorm WarningSJTTom Green62 min
Jun 12, 7:59 PM CDTSevere Thunderstorm WarningSJTCrockett91 min
Jun 12, 9:39 PM CDTSevere Thunderstorm WarningSJTCoke, Sterling, Tom Green66 min
Jun 12, 9:50 PM CDTTornado WarningSJTCoke, Tom Green65 min
Jun 12, 10:16 PM CDTSevere Thunderstorm WarningSJTTom Green44 min
Jun 12, 10:25 PM CDTSevere Thunderstorm WarningSJTNolan65 min
Jun 12, 10:38 PM CDTTornado WarningSJTNolan62 min
Jun 12, 10:57 PM CDTTornado WarningSJTTaylor58 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; the sounding from the Mesonet's radiosonde archive.