Alert archive / Texas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 107, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 17, 1999, 7:17 PM CDT for Burnet County, Texas. It was in force for 58 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
- May 17, 1999, 7:17 PM CDT (00:17 UTC)
- Expired
- May 17, 1999, 8:15 PM CDT
- In force
- 58 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Burnet County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 17, 7:45 PM CDT | Thunderstorm Wind | Granite Mtn, 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 |
|---|---|---|---|
| May 17, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 17, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 0.3 hours before the alert went out and 242 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
- 455 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 1233 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 7:24 PM CDT | Tornado Warning | EWX | Val Verde | 36 min |
| May 17, 8:01 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 59 min |
| May 17, 8:13 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 32 min |
| May 17, 8:29 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Gillespie | 61 min |
| May 17, 8:42 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 63 min |
| May 17, 8:59 PM CDT | Tornado Warning | EWX | Val Verde | 31 min |
| May 17, 9:29 PM CDT | Tornado Warning | EWX | Kinney, Val Verde | 31 min |
| May 17, 9:58 PM CDT | Tornado Warning | EWX | Val Verde | 17 min |
| May 17, 10:41 PM CDT | Flash Flood Warning | EWX | Travis | 79 min |
| May 17, 10:41 PM CDT | Severe Thunderstorm Warning | EWX | Travis | 79 min |
| May 17, 10:49 PM CDT | Flash Flood Warning | EWX | Gillespie | 101 min |
| May 17, 11:06 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell, Gonzales | 54 min |
| May 17, 11:26 PM CDT | Severe Thunderstorm Warning | EWX | Guadalupe | 64 min |
| May 17, 11:34 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt, Gonzales, Lavaca | 86 min |
| May 17, 11:34 PM CDT | Severe Thunderstorm Warning | EWX | Karnes, Wilson | 86 min |
| May 17, 11:39 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 66 min |
| May 17, 11:51 PM CDT | Flash Flood Warning | EWX | Bandera | 54 min |
| May 18, 12:30 AM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 60 min |
| May 18, 12:56 AM CDT | Severe Thunderstorm Warning | EWX | Frio | 64 min |
| May 18, 2:16 AM CDT | Severe Thunderstorm Warning | EWX | Maverick, Zavala | 64 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.