Alert archive / Texas / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 312

May 23, 199711 counties in Oklahoma; 28 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 23, 1997, 4:15 PM CDT for 11 counties in Oklahoma; 28 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 23, 1997, 4:15 PM CDT (21:15 UTC)
Expired
May 23, 1997, 10:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 39 counties

Beaver County, OK, Beckham County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK, Armstrong County, TX, Borden County, TX, Briscoe County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Donley County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Gray County, TX, Hall County, TX, Hardeman County, TX, Hemphill County, TX, Kent County, TX, King County, TX, Lipscomb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Roberts County, TX, Scurry County, TX, Stonewall County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 126 km from the middle of the area, began a volume at 21:14 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

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

IssuedProductOfficeCountiesLasted
May 23, 4:20 PM CDTSevere Thunderstorm WarningLUBHall65 min
May 23, 5:00 PM CDTFlash Flood WarningOUNEllis3 hr
May 23, 5:08 PM CDTSevere Thunderstorm WarningLUBBriscoe37 min
May 23, 5:47 PM CDTSevere Thunderstorm WarningLUBBriscoe, Hall48 min
May 23, 6:16 PM CDTSevere Thunderstorm WarningMAFScurry49 min
May 23, 6:19 PM CDTFlash Flood WarningLUBBriscoe, Hall2 hr
May 23, 8:11 PM CDTSevere Thunderstorm WarningAMARoberts49 min
May 23, 8:17 PM CDTFlash Flood WarningLUBMotley118 min

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.3 hours before the alert went out and 126 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 1997-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 245 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 1997-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 square meters per square second.19395878Sfc1 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
245 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
917 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
173 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, 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.