Alert archive / Texas / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 285

May 15, 199724 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 15, 1997, 8:15 PM CDT for 24 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 15, 1997, 8:15 PM CDT (01:15 UTC)
Expired
May 16, 1997, 1:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 24 counties

Aransas County, TX, Bee County, TX, Brazoria County, TX, Brooks County, TX, Calhoun County, TX, DeWitt County, TX, Duval County, TX, Goliad County, TX, Jackson County, TX, Jim Hogg County, TX, Jim Wells County, TX, Karnes County, TX, Kenedy County, TX, Kleberg County, TX, Live Oak County, TX, Matagorda County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Starr County, TX, Victoria County, TX, Wharton County, TX, Willacy County, TX, Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 52 km from the middle of the area, began a volume at 01:19 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

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

IssuedProductOfficeCountiesLasted
May 15, 8:40 PM CDTSevere Thunderstorm WarningCRPBee, Live Oak, San Patricio65 min
May 15, 9:38 PM CDTSevere Thunderstorm WarningBROJim Hogg62 min
May 16, 12:11 AM CDTSevere Thunderstorm WarningBROHidalgo, Kenedy, Willacy59 min

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 1.3 hours before the alert went out and 66 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 1997-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3057 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 1997-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 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
3057 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
-0.3
Supercell composite
-1.5

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; radar from the NEXRAD Level II archive.