Alert archive / Texas / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 199

April 26, 199736 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 26, 1997, 1:15 AM CDT for 36 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 26, 1997, 1:15 AM CDT (06:15 UTC)
Expired
Apr 26, 1997, 7:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 36 counties

Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bee County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Duval County, TX, Frio County, TX, Gillespie County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Jim Wells County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, La Salle County, TX, Live Oak County, TX, Llano County, TX, Mason County, TX, McMullen County, TX, Medina County, TX, Milam County, TX, Real County, TX, Travis County, TX, Uvalde County, TX, Webb County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 26, 1:25 AM CDTFlash Flood WarningEWXGillespie, Kerr65 min
Apr 26, 1:25 AM CDTSevere Thunderstorm WarningEWXGillespie, Kerr65 min
Apr 26, 2:00 AM CDTFlash Flood WarningCRPWebb4 hr
Apr 26, 2:40 AM CDTSevere Thunderstorm WarningCRPMcMullen65 min
Apr 26, 2:53 AM CDTSevere Thunderstorm WarningCRPDuval67 min
Apr 26, 2:55 AM CDTSevere Thunderstorm WarningEWXAtascosa65 min
Apr 26, 3:12 AM CDTFlash Flood WarningEWXBandera3 hr
Apr 26, 3:37 AM CDTTornado WarningCRPDuval38 min
Apr 26, 4:29 AM CDTSevere Thunderstorm WarningCRPJim Wells31 min
Apr 26, 4:43 AM CDTSevere Thunderstorm WarningCRPLive Oak32 min
Apr 26, 4:59 AM CDTSevere Thunderstorm WarningCRPBee46 min
Apr 26, 5:03 AM CDTFlash Flood WarningEWXHays, Travis3 hr
Apr 26, 5:43 AM CDTFlash Flood WarningEWXWilliamson3 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 6.3 hours before the alert went out and 181 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, Del Rio, TX at 00:00Z on 1997-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 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, Del Rio, TX at 00:00Z on 1997-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.1939587897Sfc1 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
22 J/kg
Mixed-layer CIN
-210 J/kg
Mixed-layer LCL
1669 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
379 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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
Apr 25, 8:00 PM CDTSevere Thunderstorm WatchSPCAransas, Austin, Brazoria, Calhoun, Chambers, Colorado and 20 more6 hr
Apr 26, 4:00 AM CDTSevere Thunderstorm WatchSPCAransas, Bee, Bexar, Brooks, Caldwell, Calhoun and 22 more6 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.