Alert archive / Texas / Tornado Warnings in 1999
Tornado Warning 5, NWS Lubbock, TX
NWS Lubbock, TX issued this tornado warning at Apr 30, 1999, 6:07 PM CDT for Yoakum County, Texas. It was in force for 33 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
- Apr 30, 1999, 6:07 PM CDT (23:07 UTC)
- Expired
- Apr 30, 1999, 6:40 PM CDT
- In force
- 33 min
- Issued by
- NWS Lubbock, TX
- Area
- Whole counties
County Yoakum County, TX
The radar
The Lubbock radar (KLBB), 108 km from the middle of the area, began a volume at 23:11 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 30, 6:38 PM CDT | Tornado F0 | Plains, TX | A brief tornado in open country was reported by a storm spotter. No survey was conducted. |
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 |
|---|---|---|---|
| Apr 30, 5:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 11.1 hours before the alert went out and 148 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
- 21 J/kg
- Mixed-layer CIN
- -289 J/kg
- Mixed-layer LCL
- 1062 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 216 m²/s²
- 0-3 km storm-relative helicity
- 296 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLBB 302307 RRA TORLBB TXC501-302340- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LUBBOCK TX 607 PM CDT FRI APR 30 1999 THE NATIONAL WEATHER SERVICE IN LUBBOCK HAS ISSUED A * TORNADO WARNING FOR... YOAKUM COUNTY IN NORTHWESTERN TEXAS * UNTIL 640 PM CDT * AT 604 PM CDT... LAW ENFORCEMENT PERSONNEL REPORTED A TORNADO 6 MILES EAST OF PLAINS...JUST SOUTH OF HIGHWAY 82. THIS TORNADIC THUNDERSTORM IS EXPECTED TO REMAIN OVER RURAL AREAS. GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR! &
The office that day
Everything else NWS Lubbock, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 4:42 PM CDT | Tornado Warning | LUB | Yoakum | 33 min |
| Apr 30, 5:27 PM CDT | Severe Thunderstorm Warning | LUB | Yoakum | 48 min |
| Apr 30, 5:43 PM CDT | Flash Flood Warning | LUB | Yoakum | 3 hr |
| Apr 30, 6:23 PM CDT | Flash Flood Warning | LUB | Castro | 4 hr |
| Apr 30, 6:40 PM CDT | Tornado Warning | LUB | Yoakum | 30 min |
| Apr 30, 6:48 PM CDT | Flash Flood Warning | LUB | Cochran, Lamb | 4 hr |
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; radar from the NEXRAD Level II archive.