Alert archive / Texas / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 490

June 20, 199738 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 20, 1997, 4:00 PM CDT for 38 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 20, 1997, 4:00 PM CDT (21:00 UTC)
Expired
Jun 20, 1997, 10:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 38 counties

Andrews County, TX, Bailey County, TX, Borden County, TX, Briscoe County, TX, Castro County, TX, Cochran County, TX, Coke County, TX, Crane County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Ector County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Glasscock County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Howard County, TX, Irion County, TX, Kent County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Parmer County, TX, Reagan County, TX, Scurry County, TX, Sterling County, TX, Swisher County, TX, Terry County, TX, Upton County, TX, Winkler County, TX, Yoakum County, TX

Warnings issued inside it

15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 20, 4:14 PM CDTSevere Thunderstorm WarningMAFMidland66 min
Jun 20, 4:14 PM CDTSevere Thunderstorm WarningMAFCrane66 min
Jun 20, 4:31 PM CDTSevere Thunderstorm WarningMAFEctor64 min
Jun 20, 4:53 PM CDTSevere Thunderstorm WarningMAFMidland62 min
Jun 20, 5:37 PM CDTSevere Thunderstorm WarningMAFDawson, Gaines63 min
Jun 20, 6:07 PM CDTSevere Thunderstorm WarningLUBLynn18 min
Jun 20, 6:13 PM CDTSevere Thunderstorm WarningMAFDawson47 min
Jun 20, 6:47 PM CDTSevere Thunderstorm WarningLUBLubbock48 min
Jun 20, 7:04 PM CDTSevere Thunderstorm WarningMAFBorden, Dawson26 min
Jun 20, 7:30 PM CDTFlash Flood WarningMAFDawson3 hr
Jun 20, 7:55 PM CDTSevere Thunderstorm WarningMAFHoward50 min
Jun 20, 8:36 PM CDTSevere Thunderstorm WarningMAFScurry34 min
Jun 20, 8:46 PM CDTFlash Flood WarningMAFHoward3 hr
Jun 20, 8:53 PM CDTSevere Thunderstorm WarningSJTMitchell92 min
Jun 20, 9:24 PM CDTFlash Flood WarningSJTMitchell3 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 9.0 hours before the alert went out and 72 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, Midland Regional, TX at 12:00Z on 1997-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2079 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 1997-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 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
2079 J/kg
Mixed-layer CIN
-242 J/kg
Mixed-layer LCL
1643 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
-14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

Nearby

Severe Thunderstorm Watches in Texas, 1997Every severe thunderstorm watch 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.