Alert archive / Texas / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 539

June 29, 1997Beckham County, Greer County, Harmon County, Oklahoma; 28 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 29, 1997, 5:00 PM CDT for Beckham County, Greer County, Harmon County, Oklahoma; 28 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 29, 1997, 5:00 PM CDT (22:00 UTC)
Expired
Jun 29, 1997, 10:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 31 counties

Beckham County, OK, Greer County, OK, Harmon County, OK, Armstrong County, TX, Borden County, TX, Briscoe County, TX, Carson County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Hockley County, TX, Kent County, TX, King County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Scurry County, TX, Swisher County, TX, Terry County, TX, Wheeler County, TX

The radar

The Lubbock radar (KLBB), 44 km from the middle of the area, began a volume at 22:02 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 29, 5:11 PM CDTSevere Thunderstorm WarningLUBSwisher49 min
Jun 29, 5:12 PM CDTSevere Thunderstorm WarningLUBTerry48 min
Jun 29, 5:23 PM CDTSevere Thunderstorm WarningLUBHale47 min
Jun 29, 5:37 PM CDTSevere Thunderstorm WarningLUBBriscoe48 min
Jun 29, 5:56 PM CDTTornado WarningLUBSwisher34 min
Jun 29, 5:59 PM CDTSevere Thunderstorm WarningLUBHall66 min
Jun 29, 6:11 PM CDTFlash Flood WarningLUBBriscoe, Swisher3 hr
Jun 29, 6:27 PM CDTSevere Thunderstorm WarningLUBBriscoe33 min
Jun 29, 7:07 PM CDTSevere Thunderstorm WarningLUBBriscoe, Motley33 min
Jun 29, 7:28 PM CDTSevere Thunderstorm WarningOUNGreer, Harmon, Jackson47 min
Jun 29, 7:28 PM CDTSevere Thunderstorm WarningOUNHardeman47 min

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 10.0 hours before the alert went out and 161 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, Amarillo Airport, TX at 12:00Z on 1997-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 561 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, Amarillo Airport, TX at 12:00Z on 1997-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 square meters per square second.193958Sfc1 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
561 J/kg
Mixed-layer CIN
-258 J/kg
Mixed-layer LCL
2385 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
186 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 29, 5:30 PM CDTTornado WatchSPCAdair, Cherokee, Craig, Creek, Delaware, Garfield and 22 more6 hr

Nearby

Severe Thunderstorm Watches in Texas, 1997Severe Thunderstorm Watches in Oklahoma, 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; radar from the NEXRAD Level II archive.