Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 94, NWS Austin/San Antonio, TX

October 9, 1990Gonzales County, Karnes County, Wilson County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Oct 9, 1990, 5:31 AM CDT for Gonzales County, Karnes County, Wilson County, Texas. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Oct 9, 1990, 5:31 AM CDT (10:31 UTC)
Expired
Oct 9, 1990, 6:30 AM CDT
In force
59 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Gonzales County, TX, Karnes County, TX, Wilson County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 10.5 hours before the alert went out and 168 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 1990-10-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 637 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 1990-10-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939Sfc1 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
637 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1311 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

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

Special weather statement, Oct 8, 11:56 PM CDT, 5 hours 35 minutes before
TXZ034>039-054-090800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1155 PM CDT MON OCT 8 1990

AT 1150 PM...WEATHER SERVICE RADAR INDICATED AN AREA OF SCATTERED SHOWERS
AND A FEW THUNDERSTORMS ALONG A COLD FRONT THAT STRETCHED FROM JUST NORTH
OF AUSTIN TO JUNCTION AND WESTWARD TO NEAR OZONA.  BRIEF HEAVY RAIN AND
GUSTY WINDS CAN BE EXPECTED WITH THE THUNDERSTORMS.  IN ADDITION TO THE
RAIN...NORTH WINDS OF 15 TO 20 MPH AND TEMPERATURES FALLING INTO THE 50S
AND 60S HAD ACCOMPANIED THE FRONT.  THE FRONT WAS MOVING TO THE SOUTH AT
15 MPH...INDICATING IT WOULD MOVE ACROSS THE REMAINDER OF THE HILL COUNTRY
IN THE EARLY MORNING HOURS.  THE FRONT WILL MOVE THROUGH THE AUSTIN AREA
IN THE NEXT HOUR OR TWO AND INTO THE SAN ANTONIO METROPOLITAN AREA
BETWEEN 3 AND 4 AM THIS MORNING.

COLD...WINDY AND OCCASIONALLY RAIN CONDITIONS ARE EXPECTED TO PREVAIL
THROUGH TUESDAY AND TUESDAY NIGHT...A DRAMATIC CHANGE FROM THE WARM AND
SUNNY PAST FEW DAYS.
Special weather statement, Oct 9, 2:56 AM CDT, 2 hours 35 minutes before
TXZ034>039-054-090800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
245 AM CDT TUE OCT 9 1990

...FLOOD AND FLASH FLOOD WATCH IS IN EFFECT FOR PORTIONS OF SOUTH AND
SOUTHEAST TEXAS...

THE WATCH IS FOR THAT PART OF SOUTH TEXAS NEAR AND NORTH OF A LINE FROM
PALACIOS TO SAN ANTONIO...INCLUDING THE SAN ANTONIO METROPOLITAN AREA.
AT 240 AM...WEATHER SERVICE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS
WITH VERY HEAVY RAIN WAS LOCATED FROM WEST OF KERRVILLE TO CRYSTAL CITY.
BRIEF HEAVY RAIN AND GUSTY WINDS CAN BE EXPECTED WITH THE THUNDERSTORMS
ALONG WITH POSSIBLE FLOODING OF STREET DURNING THE RUSH HOUR TRAFFIC THIS
MORNING.

NORTH WINDS OF 15 TO 20 MPH AND TEMPERATURES FALLING INTO THE 50S AND 60S.
SHOULD ACCOMPANIED THE FRONT.  THE FRONT WAS MOVING TO THE SOUTH AT 15 MPH...
INDICATING IT WOULD MOVE THROUGH SAN ANTONIO DURNING THE EARLY MORNING HOURS.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 9, 4:16 AM CDTFlash Flood WarningEWXBexar, Guadalupe74 min
Oct 9, 4:16 AM CDTSevere Thunderstorm WarningEWXBexar, Guadalupe74 min
Oct 9, 5:31 AM CDTFlash Flood WarningEWXGonzales, Karnes, Wilson119 min
Oct 9, 8:48 AM CDTFlash Flood WarningEWXWebb57 min
Oct 9, 9:42 AM CDTFlash Flood WarningEWXWebb63 min

Nearby

Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning in 1990

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.