Alert archive / Texas / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 30, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 11, 1991, 4:08 AM CDT for Goliad County, Victoria County, Texas. It was in force for 67 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 11, 1991, 4:08 AM CDT (09:08 UTC)
- Expired
- Apr 11, 1991, 5:15 AM CDT
- In force
- 67 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Goliad County, TX, Victoria County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 11, 5:00 AM CDT | Hail 0.88 | Victoria, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 9.1 hours before the alert went out and 361 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.
- Mixed-layer CAPE
- 725 J/kg
- Mixed-layer CIN
- -155 J/kg
- Mixed-layer LCL
- 1292 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
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, Apr 10, 11:35 PM CDT, 4 hours 33 minutes before
TXZ038-039-110600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1130 PM CDT WED APR 10 1991 AT 11:30 PM CDT...HONDO RADAR REPORTED A THUNDERSTORM ABOUT 8 TO 10 MILES NORTH OF HONDO. MOVEMENT WAS TOWARD THE EAST AT 30 TO 35 MPH. THIS SHOULD MOVE THE STORM ACROSS THE MEDINA LAKE AREA OF NORTHERN MEDINA COUNTY AND INTO THE NORTHERN PART OF BEXAR COUNTY IN ABOUT AN HOUR OR LESS. FREQUENT LIGHTNING...GUSTY WINDS...MODERATE TO BRIEF LOCALLY HEAVY RAINFALL PLUS SMALL HAIL COULD ACCOMPANY THIS THUNDERSTORM. RESIDENTS IN THE VICINITY OF MEDINA LAKE...BEXAR COUNTY AND THE SAN ANTONIO METROPOLITAN AREA SHOULD STAY TUNED TO LATER BULLETINS OR POSSIBLE WARNINGS THE REST OF THIS& WEDNESDAY EVENING AND THURSDAY MORNING.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 10:45 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Maverick, Webb | 60 min |
| Apr 11, 12:16 AM CDT | Tornado Warning | EWX | Dimmit, La Salle | 59 min |
| Apr 11, 1:20 AM CDT | Severe Thunderstorm Warning | EWX | McMullen | 55 min |
| Apr 11, 2:15 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Karnes, Wilson | 60 min |
| Apr 11, 3:16 AM CDT | Severe Thunderstorm Warning | EWX | Goliad | 59 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1991Every severe thunderstorm warning in 1991
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.