Alert archive / Texas / Tornado Warnings in 1999
Tornado Warning 10, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Mar 12, 1999, 5:35 PM CST for Medina County, Uvalde County, Texas. It was in force for 60 min. 4 reports 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
- Mar 12, 1999, 5:35 PM CST (23:35 UTC)
- Expired
- Mar 12, 1999, 6:35 PM CST
- In force
- 60 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Medina County, TX, Uvalde County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 12, 6:00 PM CST | Hail 0.88 | Uvalde, TX | |
| Mar 12, 6:00 PM CST | Thunderstorm Wind | Concan, TX | |
| Mar 12, 6:45 PM CST | Hail 2.75 | Montell, TX | |
| Mar 12, 6:45 PM CST | Hail 1.75 | Uvalde, 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 12, 3:45 PM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 11.6 hours before the alert went out and 136 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
- 2301 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 550 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 328 m²/s²
- Significant tornado parameter
- 4.5
- Supercell composite
- 17.6
The text
As transmitted, in the capitals the NWS used until 2016.
999 WFUS1 KSAT 122333 RRA TORSAT TXC325-463-130035- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 535 PM CST FRI MAR 12 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * TORNADO WARNING FOR... UVALDE IN TEXAS MEDINA IN TEXAS * UNTIL 635 PM CST * AT 530 PM CST... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO NEAR KNIPPA... MOVING EAST AT 30 MPH. GOLF BALL SIZE HAIL WAS REPORTED IN KNIPPA AND MARBLE SIZE IN UVALDE. * THE TORNADO IS EXPECTED TO BE NEAR... SABINAL AT 545 PM CST DHANIS AT 600 PM CST IF YOU ARE IN A CAR...GO IN A NEARBY STURDY BUILDING AS A LAST RESORT LIE FLAT IN A DITCH AND COVER YOUR HEAD. CP DO NOT USE YOUR CAR TO OUTRUN A TORNADO. CARS ARE EASILY TOSSED AROUND BY TORNADIC WINDS. IF YOU ARE CAUGHT IN THE PATH OF A TORNADO... LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO STRUCTURE IS NEARBY...SEEK SAFETY IN A DITCH OR LOW SPOT. BE MINDFUL OF RISING WATERS.
What forecasters said that day
The local office's own words before this tornado 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, Mar 12, 2:45 PM CST, 2 hours 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
245 PM CST FRI MAR 12 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0200 PM LOMA ALTA TX 1.75 INCH HAIL
03/12/99 VAL VERDE SHERIFF REPORT
LASTED 20 MINUTESLocal storm report, Mar 12, 5:05 PM CST, 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
505 PM CST FRI MAR 12 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0200 PM LOMA ALTA TX 1.75 INCH HAIL
03/12/99 VAL VERDE SHERIFF REPORT
LASTED 20 MINUTES
0410 PM LLANO TX 1.75 INCH HAIL
03/12/99 2 NE TOW SHERIFF REPORTSpecial weather statement, Mar 12, 5:25 PM CST, 10 minutes before
TXZ171>173-183>194-202>209-217>225-228-130300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 525 PM CST FRI MAR 12 1999 ...A TORNADO WATCH IS IN EFFECT TIL 9 PM TONIGHT FOR MOST OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY... ...A FLASH FLOOD WATCH IS IN EFFECT FOR THE EASTERN PORTIONS OF SOUTH CENTRAL TEXAS FOR TONIGHT... SEVERE WEATHER CONTINUED OVER THE WESTERN AND EXTREME EASTERN PORTIONS OF SOUTH CENTRAL TEXAS...AND THE EASTERN PORTIONS OF THE TEXAS HILL COUNTRY. TORNADO WARNINGS ARE IN EFFECT FOR BURNET AND TRAVIS COUNTIES TIL 625 PM SEVERE THUNDERSTORMS WARNINGS ARE IN EFFECT FOR... UVALDE COUNTY TIL 615 PM BURNET COUNTY TIL 545 PM SEVERE THUNDERSTORMS ARE DEVELOPING AHEAD AND ALONG A LINE FROM NEAR EAGLE PASS TO MEDINA TO ROUND ROCK. MOVEMENTS ARE EASTWARD NEAR 20 TO 30 MPH. THERE CONTINUES A RISK OF SEVERE WEATHER...WITH LARGE HAIL AND TORNADOES BEING REPORTED OVER THE PAST FEW HOURS IN UVALDE... EDWARDS...AND VAL VERDE COUNTIES. THESE STORMS WILL CONTINUE TO MOVE EASTWARD THIS EVENING WITH ADDITIONAL SEVERE WEATHER EXPECTED. RAINFALL AMOUNTS HAVE AVERAGED ONE-QUARTER TO ONE INCH AND HOUR... WITH HIGHER TOTALS OF 2 INCHES EAST OF INTERSTATE 35 CORRIDOR EXPECTED TONIGHT. SEVERE WEATHER WILL CONTINUE OVER THE AREA TONIGHT...ADDITIONAL WEATHER STATEMENT WILL BE ISSUED AS NEEDED. RESIDENTS OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY SHOULD MONITOR LATER INFORMATION AND STAY ALERT TO THE THREAT OF SEVERE WEATHER MOVING INTO YOU AREA.
Special weather statement, Mar 12, 5:25 PM CST, 10 minutes before
TXZ171>173-183>194-202>209-217>225-228-130300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 525 PM CST FRI MAR 12 1999 ...A TORNADO WATCH IS IN EFFECT TIL 9 PM TONIGHT FOR MOST OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY... ...A FLASH FLOOD WATCH IS IN EFFECT FOR THE EASTERN PORTIONS OF SOUTH CENTRAL TEXAS FOR TONIGHT... SEVERE WEATHER CONTINUED OVER THE WESTERN AND EXTREME EASTERN PORTIONS OF SOUTH CENTRAL TEXAS...AND THE EASTERN PORTIONS OF THE TEXAS HILL COUNTRY. TORNADO WARNINGS ARE IN EFFECT FOR BURNET AND TRAVIS COUNTIES TIL 625 PM SEVERE THUNDERSTORMS WARNINGS ARE IN EFFECT FOR... UVALDE COUNTY TIL 615 PM BURNET COUNTY TIL 545 PM SEVERE THUNDERSTORMS ARE DEVELOPING AHEAD AND ALONG A LINE FROM NEAR EAGLE PASS TO MEDINA TO ROUND ROCK. MOVEMENTS ARE EASTWARD NEAR 20 TO 30 MPH. THERE CONTINUES A RISK OF SEVERE WEATHER...WITH LARGE HAIL AND TORNADOES BEING REPORTED OVER THE PAST FEW HOURS IN UVALDE... EDWARDS...AND VAL VERDE COUNTIES. THESE STORMS WILL CONTINUE TO MOVE EASTWARD THIS EVENING WITH ADDITIONAL SEVERE WEATHER EXPECTED. RAINFALL AMOUNTS HAVE AVERAGED ONE-QUARTER TO ONE INCH AND HOUR... WITH HIGHER TOTALS OF 2 INCHES EAST OF INTERSTATE 35 CORRIDOR EXPECTED TONIGHT. SEVERE WEATHER WILL CONTINUE OVER THE AREA TONIGHT...ADDITIONAL WEATHER STATEMENT WILL BE ISSUED AS NEEDED. RESIDENTS OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY SHOULD MONITOR LATER INFORMATION AND STAY ALERT TO THE THREAT OF SEVERE WEATHER MOVING INTO YOU AREA.
Local storm report, Mar 12, 5:33 PM CST, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
533 PM CST FRI MAR 12 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0200 PM LOMA ALTA TX 1.75 INCH HAIL
03/12/99 VAL VERDE SHERIFF REPORT
LASTED 20 MINUTES
0410 PM LLANO TX 1.75 INCH HAIL
03/12/99 2 NE TOW SHERIFF REPORT
0515 PM MARBLE FALLS TX 1.75 INCH HAIL
BURNET PD REPORT
0530 PM KNIPPA TX 1.75 INCH HAIL
UVALDE DPS REPORTLocal storm report, Mar 12, 5:33 PM CST, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
533 PM CST FRI MAR 12 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0200 PM LOMA ALTA TX 1.75 INCH HAIL
03/12/99 VAL VERDE SHERIFF REPORT
LASTED 20 MINUTES
0410 PM LLANO TX 1.75 INCH HAIL
03/12/99 2 NE TOW SHERIFF REPORT
0515 PM MARBLE FALLS TX 1.75 INCH HAIL
BURNET PD REPORT
0530 PM KNIPPA TX 1.75 INCH HAIL
UVALDE DPS REPORTThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 12, 11:09 AM CST | Severe Thunderstorm Warning | EWX | Burnet, Williamson | 41 min |
| Mar 12, 12:34 PM CST | Severe Thunderstorm Warning | EWX | Val Verde | 61 min |
| Mar 12, 12:39 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 46 min |
| Mar 12, 1:15 PM CST | Severe Thunderstorm Warning | EWX | Edwards | 60 min |
| Mar 12, 1:47 PM CST | Tornado Warning | EWX | Edwards, Val Verde | 63 min |
| Mar 12, 2:50 PM CST | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Real, Val Verde | 60 min |
| Mar 12, 3:39 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 61 min |
| Mar 12, 3:53 PM CST | Tornado Warning | EWX | Kinney | 42 min |
| Mar 12, 4:03 PM CST | Severe Thunderstorm Warning | EWX | Llano | 62 min |
| Mar 12, 4:17 PM CST | Severe Thunderstorm Warning | EWX | Uvalde | 58 min |
| Mar 12, 4:45 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 60 min |
| Mar 12, 5:16 PM CST | Severe Thunderstorm Warning | EWX | Uvalde | 59 min |
| Mar 12, 5:21 PM CST | Tornado Warning | EWX | Burnet, Travis | 64 min |
Nearby
Tornado Warnings in Texas, 1999Every tornado warning in 1999Tornadoes in 1999
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.