Alert archive / Texas / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 158, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Oct 29, 1991, 2:42 PM CST for Frio County, Texas. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Oct 29, 1991, 2:42 PM CST (20:42 UTC)
- Expired
- Oct 29, 1991, 3:15 PM CST
- In force
- 33 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, 8.7 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.
- Mixed-layer CAPE
- 1990 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 790 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 5.8
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 29, 8:55 AM CST, 5 hours 47 minutes before
TXZ030-034>037-291600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 900 AM CST TUE OCT 29 1991 ...COLD FRONTAL THUNDERSTORMS NOW 50 MILES NORTHWEST OF AUSTIN... JUST BEFORE 9 AM...RADAR INDICATED A NEARLY SOLID LINE OF THUNDERSTORMS FROM TEMPLE TO BURNET...LAKE BUCHANAN AND TO JUST WEST OF FREDERICKSBURG. THE LINE HAS PICKED UP SPEED AND WAS MOVING TO THE SOUTHEAST AT 20 MPH. IT SHOULD REACH THE CAPITAL CITY AROUND THE NOON HOUR. THE STRONGEST STORM WAS LOCATED OVER WESTERN GILLESPIE COUNTYBETWEEN HARPER AND FREDERICKSBURG. RAINFALL RATES WERE ESTIMATED NEAR TWO INCHES PER HOUR IN A 10 MILE DIAMETER SPOT. PERSONS IN SOUTH CENTRAL TEXAS SHOULD BE PREPARED FOR A MAJOR WEATHER CHANGE AS THESE THUNDERSTORMS PUSH THROUGH AND MUCH COLDER AIR FILLS IN BEHIND THEM. SOME OF THESE STORMS COULD PRODUCE LARGE HAIL...DAMAGING WINDS AND NEARLY CONTINUOUS LIGHTNING STRIKES. ...JVD...
Special weather statement, Oct 29, 9:20 AM CST, 5 hours 22 minutes before
TXZ054-291625- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 925 AM CST TUE OCT 29 1991 AT 920 AM RADAR INICATED A LINE OF THUNDERSTORMS EXTENDING FROM FORT WORTH SOUTHWEST TO ROCKSPRINGS TO 30 MILES EAST OF DEL RIO TO EAGLE PASS. THE STRONGEST STORMS WERE LOCATED EAST OF ROCKSPRINGS. MOVEMENT WAS TO THE EAST-SOUTHEAST AT 10 MPH. VERY HEAVY RAIN AND BRIEF STRONG GUSTY WINDS CAN BE EXPECTED FROM THESE STORMS. BOATERS ON LAKE AMISTAD SHOULD BE PREPARED TO SEEK SAFE HARBOR IF THREATENING WEATHER IS OBSERVED. MOTORISTS...DO NOT TRY TO CROSS LOW WATER CROSSING THAT HAVE WATER RUNNING OVER THE TOP OF THE ROADWAY. DRIVING INTO HEAVY RAIN CAN ALSO REDUCE YOUR VISIBILITIES.
Special weather statement, Oct 29, 9:50 AM CST, 4 hours 52 minutes before
TXZ030-034>037-291645- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 945 AM CST TUE OCT 29 1991 ...COLD FRONTAL THUNDERSTORMS NOW 25 MILES NORTHWEST OF AUSTIN... AT 940 AM...RADAR SHOWED PRE-FRONTAL THUNDERSTORMS ALONG A LINE FROM CAMERON...GEORGETOWN...LAKE TRAVIS...JOHNSON CITY AND BLANCO LINE. THE LINE OF SHOWERS AND THUNDERSTORMS WAS MOVING TO THE SOUTHEAST AT 25 MPH. IT SHOULD REACH THE CAPITAL CITY AROUND 11 AM. RAINFALL RATES...NEAR ONE INCH PER HOUR...WERE LOCATED IN SMALL SPOTS AROUND HARPER...ROUND MOUNTAIN...LIBERTY HILL AND JARRELL. PERSONS IN SOUTH CENTRAL TEXAS SHOULD BE PREPARED FOR A MAJOR WEATHER CHANGE AS THESE THUNDERSTORMS PUSH THROUGH AND MUCH COLDER AIR FILLS IN BEHIND THEM. SOME OF THESE STORMS COULD PRODUCE LARGE HAIL...DAMAGING WINDS AND NEARLY CONTINUOUS LIGHTNING STRIKES. DUE TO PREVIOUS RAINS SOME SPOTS MAY EXPERIENCE BRIEF LOCALIZED RAINS AND FLASH FLOODING. JVD
Special weather statement, Oct 29, 10:02 AM CST, 4 hours 40 minutes before
TXZ030-034>037-291645- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 945 AM CST TUE OCT 29 1991 ...COLD FRONTAL THUNDERSTORMS NOW 25 MILES NORTHWEST OF AUSTIN... AT 940 AM...RADAR SHOWED PRE-FRONTAL THUNDERSTORMS ALONG A LINE FROM CAMERON...GEORGETOWN...LAKE TRAVIS...JOHNSON CITY AND BLANCO LINE. THE LINE OF SHOWERS AND THUNDERSTORMS WAS MOVING TO THE SOUTHEAST AT 25 MPH. IT SHOULD REACH THE CAPITAL CITY AROUND 11 AM. RAINFALL RATES...NEAR ONE INCH PER HOUR...WERE LOCATED IN SMALL SPOTS AROUND HARPER...ROUND MOUNTAIN...LIBERTY HILL AND JARRELL. PERSONS IN SOUTH CENTRAL TEXAS SHOULD BE PREPARED FOR A MAJOR WEATHER CHANGE AS THESE THUNDERSTORMS PUSH THROUGH AND MUCH COLDER AIR FILLS IN BEHIND THEM. SOME OF THESE STORMS COULD PRODUCE HAIL...DAMAGING WINDS AND NEARLY CONTINUOUS LIGHTNING STRIKES. DUE TO PREVIOUS RAINS SOME SPOTS MAY EXPERIENCE BRIEF LOCALIZED HEAVY RAINS AND FLASH FLOODING. JVD
Special weather statement, Oct 29, 2:10 PM CST, 32 minutes before
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</html>The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 10:13 AM CST | Flash Flood Warning | EWX | Real | 3 hr |
| Oct 29, 11:13 AM CST | Flash Flood Warning | EWX | Kerr | 3 hr |
| Oct 29, 1:52 PM CST | Severe Thunderstorm Warning | EWX | Frio | 53 min |
| Oct 29, 2:05 PM CST | Severe Thunderstorm Warning | EWX | Medina | 40 min |
| Oct 29, 2:13 PM CST | Severe Thunderstorm Warning | EWX | Bexar | 62 min |
| Oct 29, 2:27 PM CST | Severe Thunderstorm Warning | EWX | Atascosa | 63 min |
| Oct 29, 3:03 PM CST | Tornado Warning | EWX | Atascosa | 42 min |
| Oct 29, 3:31 PM CST | Severe Thunderstorm Warning | EWX | McMullen | 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; the sounding from the Mesonet's radiosonde archive.