Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 5, NWS Austin/San Antonio, TX

January 6, 1998Frio County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jan 6, 1998, 11:51 AM CST for Frio County, Texas. It was in force for 69 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 6, 1998, 11:51 AM CST (17:51 UTC)
Expired
Jan 6, 1998, 1:00 PM CST
In force
69 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Frio County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 5.9 hours before the alert went out and 177 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 12:00Z on 1998-01-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1357 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 12:00Z on 1998-01-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 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
1357 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
514 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.3

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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jan 6, 11:13 AM CST, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1113 AM CST TUE JAN 06 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....
 1010 AM    COUPLAND                  TX   1.75 INCH HAIL
01/06/98   WILLIAMSON
Local storm report, Jan 6, 11:13 AM CST, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1113 AM CST TUE JAN 06 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....
 1010 AM    COUPLAND                  TX   1.75 INCH HAIL
01/06/98   WILLIAMSON

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 5, 10:40 PM CSTSevere Thunderstorm WarningEWXBurnet50 min
Jan 6, 6:56 AM CSTFlash Flood WarningEWXBandera, Gillespie, Kerr5 hr
Jan 6, 8:11 AM CSTFlash Flood WarningEWXLlano4 hr
Jan 6, 8:45 AM CSTSevere Thunderstorm WarningEWXGillespie60 min
Jan 6, 9:52 AM CSTSevere Thunderstorm WarningEWXWilliamson68 min
Jan 6, 11:02 AM CSTSevere Thunderstorm WarningEWXFrio43 min
Jan 6, 11:51 AM CSTFlash Flood WarningEWXFrio69 min
Jan 6, 12:17 PM CSTFlash Flood WarningEWXMedina3 hr
Jan 6, 12:41 PM CSTFlash Flood WarningEWXBexar2 hr
Jan 6, 12:55 PM CSTFlash Flood WarningEWXFrio2 hr
Jan 6, 1:31 PM CSTSevere Thunderstorm WarningEWXAtascosa59 min
Jan 6, 2:08 PM CSTFlash Flood WarningEWXAtascosa2 hr
Jan 6, 2:32 PM CSTFlash Flood WarningEWXBexar, Comal118 min
Jan 6, 4:13 PM CSTFlash Flood WarningEWXDeWitt, Gonzales, Lavaca3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998

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.