Alert archive / Texas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 30, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 12, 1999, 8:07 PM CST for Uvalde County, Zavala County, Texas. It was in force for 63 min. 2 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, 8:07 PM CST (02:07 UTC)
- Expired
- Mar 12, 1999, 9:10 PM CST
- In force
- 63 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Uvalde County, TX, Zavala County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 12, 8:30 PM CST | Hail 1 | La Pryor, TX | Hail broke windows in the town of LaPryor. |
| Mar 12, 9:05 PM CST | Hail 0.88 | Crystal City, 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 00:00Z, 2.1 hours before the alert went out and 109 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
- 741 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 1309 m above ground
- 0-6 km bulk shear
- 86 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 473 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 11.0
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
Local storm report, Mar 12, 5:33 PM CST, 2 hours 34 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, 5:50 PM CST, 2 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
550 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 2NE TOW TX 1.75 INCH HAIL
03/12/99 LLANO SHERIFF REPORT
0515 PM MARBLE FALLS TX 1.75 INCH HAIL
03/12/99 BURNET PD REPORT
0530 PM KNIPPA TX 1.75 INCH HAIL
03/12/99 UVALDE DPS REPORT
0530 PM UVALDE TX .75 INCH HAIL
03/12/99 UVALDE PD REPORTLocal storm report, Mar 12, 5:50 PM CST, 2 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
550 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 2NE TOW TX 1.75 INCH HAIL
03/12/99 LLANO SHERIFF REPORT
0515 PM MARBLE FALLS TX 1.75 INCH HAIL
03/12/99 BURNET PD REPORT
0530 PM KNIPPA TX 1.75 INCH HAIL
03/12/99 UVALDE DPS REPORT
0530 PM UVALDE TX .75 INCH HAIL
03/12/99 UVALDE PD REPORTLocal storm report, Mar 12, 6:10 PM CST, 1 hour 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
610 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 2NE TOW TX 1.75 INCH HAIL
03/12/99 LLANO SHERIFF REPORT
0515 PM MARBLE FALLS TX 1.75 INCH HAIL
03/12/99 BURNET PD REPORT
0530 PM KNIPPA TX 1.75 INCH HAIL
03/12/99 UVALDE DPS REPORT
0530 PM UVALDE TX .75 INCH HAIL
03/12/99 UVALDE PD REPORT
0540 PM MARBLE FALLS TX TORNADO ON GROUND
03/12/99 BURNET REPORTED BY HAMS
0557 PM MARBLE FALLS TX 2.75 HAIL
03/12/99 BURNET REPORTED BY SPOTTER
0602 PM LAGO VISTA TX 1.75 HAIL
03/12/99 TRAVIS REPORTED BY HAMS
0602 PM SPICEWOOD TX 1.75 HAIL
03/12/99 BURNET REPORTED BY HAMSLocal storm report, Mar 12, 6:10 PM CST, 1 hour 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
610 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 2NE TOW TX 1.75 INCH HAIL
03/12/99 LLANO SHERIFF REPORT
0515 PM MARBLE FALLS TX 1.75 INCH HAIL
03/12/99 BURNET PD REPORT
0530 PM KNIPPA TX 1.75 INCH HAIL
03/12/99 UVALDE DPS REPORT
0530 PM UVALDE TX .75 INCH HAIL
03/12/99 UVALDE PD REPORT
0540 PM MARBLE FALLS TX TORNADO ON GROUND
03/12/99 BURNET REPORTED BY HAMS
0557 PM MARBLE FALLS TX 2.75 HAIL
03/12/99 BURNET REPORTED BY SPOTTER
0602 PM LAGO VISTA TX 1.75 HAIL
03/12/99 TRAVIS REPORTED BY HAMS
0602 PM SPICEWOOD TX 1.75 HAIL
03/12/99 BURNET REPORTED BY HAMSLocal storm report, Mar 12, 6:58 PM CST, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
610 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 2NE TOW TX 1.75 INCH HAIL
03/12/99 LLANO SHERIFF REPORT
0515 PM MARBLE FALLS TX 1.75 INCH HAIL
03/12/99 BURNET PD REPORT
0530 PM KNIPPA TX 1.75 INCH HAIL
03/12/99 UVALDE DPS REPORT
0530 PM UVALDE TX .75 INCH HAIL
03/12/99 UVALDE PD REPORT
0540 PM MARBLE FALLS TX TORNADO ON GROUND
03/12/99 BURNET REPORTED BY HAMS
0557 PM MARBLE FALLS TX 2.75 HAIL
03/12/99 BURNET REPORTED BY SPOTTER
0602 PM LAGO VISTA TX 1.75 HAIL
03/12/99 TRAVIS REPORTED BY HAMS
0602 PM SPICEWOOD TX 1.75 HAIL
03/12/99 BURNET REPORTED BY HAMS
0620 PM CEDAR PARK TX 1.50 HAIL
03/12/99 WILLIAMSON REPORTED BY MEDIA
0625 PM CEDAR PARK 620/.183 TX 1.75 HAIL
03/12/99 WILLIAMSON REPORTED BY SPOTTER
0831 PM BATESVILLE 4E TX 1.75 HAIL
03/12/99 ZAVALA REPORTED BY COOP OBSVRThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 12, 6:13 PM CST | Tornado Warning | EWX | Travis, Williamson | 57 min |
| Mar 12, 6:32 PM CST | Severe Thunderstorm Warning | EWX | Frio, Medina, Zavala | 58 min |
| Mar 12, 6:45 PM CST | Tornado Warning | EWX | Frio | 60 min |
| Mar 12, 7:04 PM CST | Severe Thunderstorm Warning | EWX | Bastrop, Travis | 61 min |
| Mar 12, 7:48 PM CST | Severe Thunderstorm Warning | EWX | Atascosa, Frio | 62 min |
| Mar 12, 8:01 PM CST | Severe Thunderstorm Warning | EWX | Lee | 64 min |
| Mar 12, 8:21 PM CST | Severe Thunderstorm Warning | EWX | Kinney | 64 min |
| Mar 12, 8:44 PM CST | Severe Thunderstorm Warning | EWX | Bandera, Kerr | 61 min |
| Mar 12, 8:49 PM CST | Severe Thunderstorm Warning | EWX | Gillespie | 46 min |
| Mar 12, 9:08 PM CST | Severe Thunderstorm Warning | EWX | Frio, Medina, Zavala | 62 min |
| Mar 12, 10:08 PM CST | Severe Thunderstorm Warning | EWX | Dimmit, Frio | 62 min |
| Mar 12, 10:39 PM CST | Severe Thunderstorm Warning | EWX | Maverick | 66 min |
| Mar 12, 11:10 PM CST | Severe Thunderstorm Warning | EWX | Dimmit | 30 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1999Every severe thunderstorm warning 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.