Alert archive / Texas / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 86, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 1, 1990, 4:09 PM CDT for Hays County, Travis County, Texas. It was in force for 66 min.
The area
The counties it named.
The facts
- Issued
- Sep 1, 1990, 4:09 PM CDT (21:09 UTC)
- Expired
- Sep 1, 1990, 5:15 PM CDT
- In force
- 66 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Hays County, TX, Travis 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
Stephenville/Cla, TX (KSEP), launched 12:00Z, 9.2 hours before the alert went out and 226 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
- 676 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1964 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAUS 012112 SVRAUS TXC209-453-012215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN TX 409 PM CDT SAT SEP 1 1990 THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...HAYS COUNTY...TRAVIS COUNTY AT 410 PM A DANGEROUS THUNDERSTORM WAS LOCATED JUST EAST OF AUSTIN MOVING SOUTHWEST AT 15 MPH. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROMo WINDOWS UNTIL THE STORM HAS PASSED.
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, Sep 1, 1:01 PM CDT, 3 hours 8 minutes before
TXZ054-011900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 101 PM CDT SAT SEP 1 1990 AT 1255 PM CDT RADAR INDICATED STRONG THUNDERSTORMS MOVING INTO EASTERN VAL VERDE COUNTY AND WERE LOCATED FROM 20 MILES NORTHEAST OF DEL RIO TO LOMA ALTA. MOVEMENT WAS TO THE SOUTHWEST AT 20 MPH. HEAVY RAIN...SMALL HAIL...FREQUENT DANGEROUS LIGHTNING AND STRONG GUSTY WINDS ARE LIKELY WITH THESE STORMS. THESE STORMS WERE MOVING TOWARDS LAKE AMISTAD. BOATERS AND FISHERMEN ON LAKE AMISTAD AND SURROUNDING RIVERS SHOULD BE PREPARED TO MOVE QUICKLY TO SHORE AND AWAY FROM THE WATER IF LIGHTNING IS SEEN...THUNDER IS HEARD OR WINDS BEGIN INCREASING. MOTORISTS TRAVELING IN EASTERN VAL VERDE C;OUNTY SHOULD EXERCISE CAUTION AS WET AND SLIPPERY ROADS ALONG WITH REDUCED VISIBILITY IN THE SHOWERS...COULD PRESENT A DRIVING HAZARD.
Special weather statement, Sep 1, 1:41 PM CDT, 2 hours 28 minutes before
TXZ030-034>037-012030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 140 PM CDT SAT SEP 01 1990 ...THUNDERSTORMS DEVELOPING RADIDLY OVER CENTRAL AND SOUTH TEXAS... AT 130 PM RADAR INDICATED THUNDERSTORMS FROM HONDO...SAN ANTONIO... GONZALES TO NORTH OF THE HOUSTON AREA. THE STRONGEST STORMS WERE SOUTH OF SAN ANTONIO AND NEAR WHARTON. OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE FOUND FROM RICHLAND SPRINGS...BROWNWOOD AND STEPHENVILLE. MOVEMENT OF THE RAIN ACTIVITY WAS TO THE SOUTHWEST AT 15 MPH. THUNDERSTORMS WILL BEGIN TO DEVELOP WITH IN THE NEXT FEW HOURS OVER CENTRAL TEXAS. PERSONS CAMPING...BOATING OR PLANNING OUTDOOR ACTIVITIES SHOULD KEEP AN EYE FOR THE SKY. r AS THESE STROMS ARE CAPABLE OF PRODUCING VERY STRONG AND GUSTY WIND...FREQUENT LIGHTNING...HAIL AND BRIEF HEAVY RAIN.
Special weather statement, Sep 1, 1:54 PM CDT, 2 hours 15 minutes before
TXZ054-012200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 155 PM CDT SAT SEP 1 1990 AT 150 PM CDT RADAR INDICATED MODERATE RAINSHOWERS AND ISOLATED THUNDERSTORMS FROM 10 MILES NORTHEAST OF DEL RIO TO JUST SOUTHEAST OF JUNO ON HIGHWAY 163. MOVEMENT WAS TO THE SOUTHWEST AT 15 MPH. HEAVY RAIN...SMALL HAIL...FREQUENT DANGEROUS LIGHTNING AND STRONG GUSTY WINDS ARE LIKELY WITH THESE STORMS. BOATERS AND FISHERMEN ON LAKE AMISTAD AND SURROUNDING RIVERS SHOULD BE PREPARED TO MOVE QUICKLY TO SHORE AND AWAY FROM THE WATER IF LIGHTNING IS SEEN...THUNDER IS HEARD OR WINDS BEGIN INCREASING. MOTORISTS TRAVELING IN EASTERN VAL VERDE COUNTY SHOULD EXERCISE CAUTION AS WET AND SLIPPERY ROADS ALONG WITH REDUCED VISIBILITY IN THE SHOWERS...COULD PRESENT A DRIVING HAZARD.
Special weather statement, Sep 1, 2:43 PM CDT, 1 hour 26 minutes before
TXZ054-012200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 250 PM CDT SAT SEP 1 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM CDT FOR PERSONS IN VAL VERDE COUNTY... AT 245 PM CDT RADAR INDICATED MODERATE RAINSHOWERS AND ISOLATED THUNDERSTORMS FROM 10 MILES NORTHEAST OF DEL RIO TO JUST SOUTHEAST OF JUNO ON HIGHWAY 163. MOVEMENT WAS TO THE SOUTHWEST AT 15 MPH. HEAVY RAIN...SMALL HAIL...FREQUENT DANGEROUS LIGHTNING AND STRONG GUSTY WINDS ARE LIKELY WITH THESE STORMS. BOATERS AND FISHERMEN ON LAKE AMISTAD AND SURROUNDING RIVERS SHOULD BE PREPARED TO MOVE QUICKLY TO SHORE AND AWAY FROM THE WATER IF LIGHTNING IS SEEN...THUNDER IS HEARD OR WINDS BEGIN INCREASING. MOTORISTS TRAVELING IN EASTERN VAL VERDE COUNTY SHOULD EXERCISE CAUTION AS WET AND SLIPPERY ROADS ALONG WITH REDUCED VISIBILITY IN THE SHOWERS...COULD PRESENT A DRIVING HAZARD.
Special weather statement, Sep 1, 3:11 PM CDT, 58 minutes before
TXZ030-034>037-012130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 310 PM CDT SAT SEP 01 1990 ...THUNDERSTORMS INCREASING IN AREAL COVERAGE OVER SOUTH CENTRAL TEXAS... AT 3 PM...NUMEROUS SHOWERS AND THUNDERSTORMS EXTENDED OVER MUCH OF THE HILL COUNTRY WEST OF AUSTIN...FROM NORTH OF LAKE BUCHANAN THROUGH MARBLE FALLS TO NEAR BLANCO. OTHER THUNDERSTORMS WERE MASSING OVER THE INTERIOR COASTAL PLAINS FROM COLLEGE STATION PAST LA GRANGE AND SCHULENBURG TO EAST AND SOUTHEAST OF SAN ANTONIO. ALL SHOWERS AND THUNDERSTORMS WERE MOVING TO THE SOUTHWEST AT 15 MPH. PERSONS AROUND CENTRAL AND SOUTH CENTRAL TEXAS SHOULD KEEP A CLOSE CHECK ON THE SKIES AND BE PREPARED FOR GUSTY WIN:DS AND POSSIBLE HAIL. GOLF BALL SIZE HAIL WAS REPORTED AT SPICEWOOD...ON THE WEST SIDE OF LAKE TRAVIS BETWEEN 130 AND 145 PM. THE SEVERE THUNDERSTORM WATCH REMAINS OUT FOR SAN SABA...LLANO...GILLESPIE AND BLANCO COUNTIES UNTIL 9 PM CDT.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 7:47 PM CDT | Severe Thunderstorm Warning | EWX | Jackson, Victoria | 58 min |
| Aug 31, 8:05 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt | 55 min |
| Aug 31, 8:06 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales, Karnes | 69 min |
| Aug 31, 8:42 PM CDT | Severe Thunderstorm Warning | EWX | Wilson | 48 min |
| Aug 31, 9:41 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 49 min |
| Sep 1, 1:29 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 46 min |
| Sep 1, 2:12 PM CDT | Severe Thunderstorm Warning | EWX | Travis | 48 min |
| Sep 1, 2:14 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales, Karnes | 61 min |
| Sep 1, 2:41 PM CDT | Severe Thunderstorm Warning | EWX | Wilson | 64 min |
| Sep 1, 3:14 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 46 min |
| Sep 1, 3:17 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 58 min |
| Sep 1, 3:25 PM CDT | Tornado Warning | EWX | Bexar | 50 min |
| Sep 1, 3:47 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa | 43 min |
| Sep 1, 4:34 PM CDT | Severe Thunderstorm Warning | EWX | Lampasas | 41 min |
| Sep 1, 5:00 PM CDT | Severe Thunderstorm Warning | EWX | Medina, Uvalde | 45 min |
| Sep 1, 5:20 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 40 min |
| Sep 1, 5:47 PM CDT | Severe Thunderstorm Warning | EWX | Medina | 43 min |
| Sep 1, 6:11 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 49 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.