Alert archive / Texas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 54, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this severe thunderstorm warning at Apr 28, 1999, 9:35 PM CDT for Andrews County, Texas. It was in force for 25 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 28, 1999, 9:35 PM CDT (02:35 UTC)
- Expired
- Apr 28, 1999, 10:00 PM CDT
- In force
- 25 min
- Issued by
- NWS Midland/Odessa, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Andrews County, TX
The radar
The Midland/Odessa radar (KMAF), 58 km from the middle of the area, began a volume at 02:35 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 28, 9:43 PM CDT | Hail 1.75 | Andrews, TX | A multicell cluster of thunderstorms moved into Andrews County from Winkler County. A new cell developed on the south end of the cluster and dropped the large hail on parts of Andrews. Numerous cars were damaged along with some roofs. This was the worst hai |
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 28, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Midland Regional, TX (KMAF), launched 00:00Z, 2.6 hours before the alert went out and 57 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
- 1227 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 2480 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
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.
NWS Midland/Odessa, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 28, 7:41 PM CDT, 1 hour 54 minutes earlier.
Area forecast discussion, Apr 28, 7:41 PM CDT, 1 hour 54 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIDLAND TX 741 PM CDT WED APR 28 1999 BECAUSE OF SEVERE WEATHER CONCERNS...THE AREA FORECAST DISCUSSION WILL NOT BE ISSUED. ONGOING FORECAST WILL DO...70.
The office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 7:19 PM CDT | Severe Thunderstorm Warning | MAF | Dawson, Gaines | 26 min |
| Apr 28, 7:31 PM CDT | Severe Thunderstorm Warning | MAF | Andrews | 44 min |
| Apr 28, 7:38 PM CDT | Severe Thunderstorm Warning | MAF | Winkler | 52 min |
| Apr 28, 8:13 PM CDT | Severe Thunderstorm Warning | MAF | Ward | 32 min |
| Apr 28, 8:15 PM CDT | Severe Thunderstorm Warning | MAF | Andrews | 45 min |
| Apr 28, 8:47 PM CDT | Severe Thunderstorm Warning | MAF | Gaines | 43 min |
| Apr 28, 9:58 PM CDT | Tornado Warning | MAF | Andrews, Gaines | 47 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; radar from the NEXRAD Level II archive.