Alert archive / Texas / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 366

May 31, 199719 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 31, 1997, 5:00 AM CDT for 19 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 31, 1997, 5:00 AM CDT (10:00 UTC)
Expired
May 31, 1997, 10:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Aransas County, TX, Atascosa County, TX, Bee County, TX, Calhoun County, TX, DeWitt County, TX, Duval County, TX, Goliad County, TX, Jackson County, TX, Jim Wells County, TX, Karnes County, TX, Kleberg County, TX, Lavaca County, TX, Live Oak County, TX, McMullen County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX, Wilson County, TX

The radar

The Corpus Christi radar (KCRP), 88 km from the middle of the area, began a volume at 10:02 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

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

IssuedProductOfficeCountiesLasted
May 31, 5:34 AM CDTSevere Thunderstorm WarningCRPGoliad56 min

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 10.0 hours before the alert went out and 91 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, Corpus Christi, TX at 00:00Z on 1997-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2212 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, Corpus Christi, TX at 00:00Z on 1997-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
2212 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 30, 10:00 PM CDTSevere Thunderstorm WatchSPCAtascosa, Bandera, Bexar, Caldwell, Comal, Frio and 8 more4 hr
May 31, 12:00 AM CDTSevere Thunderstorm WatchSPCAustin, Brazoria, Chambers, Colorado, DeWitt, Fayette and 17 more5 hr
May 31, 2:45 AM CDTSevere Thunderstorm WatchSPCBandera, Coke, Concho, Edwards, Frio, Glasscock and 17 more4 hr

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; radar from the NEXRAD Level II archive.