Alert archive / Texas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 52, NWS Midland/Odessa, TX

April 28, 1999Andrews County, Texas; Lea County, New Mexico

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Apr 28, 1999, 8:15 PM CDT for Andrews County, Texas; Lea County, New Mexico. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 28, 1999, 8:15 PM CDT (01:15 UTC)
Expired
Apr 28, 1999, 9:00 PM CDT
In force
45 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Lea County, NM, Andrews County, TX

The radar

The Midland/Odessa radar (KMAF), 103 km from the middle of the area, began a volume at 01:14 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 28, 6:30 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.3 hours before the alert went out and 102 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.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 1999-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1227 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 00:00Z on 1999-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

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, 34 minutes earlier.

Area forecast discussion, Apr 28, 7:41 PM CDT, 34 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.

IssuedProductOfficeCountiesLasted
Apr 28, 7:19 PM CDTSevere Thunderstorm WarningMAFDawson, Gaines26 min
Apr 28, 7:31 PM CDTSevere Thunderstorm WarningMAFAndrews44 min
Apr 28, 7:38 PM CDTSevere Thunderstorm WarningMAFWinkler52 min
Apr 28, 8:13 PM CDTSevere Thunderstorm WarningMAFWard32 min
Apr 28, 8:47 PM CDTSevere Thunderstorm WarningMAFGaines43 min
Apr 28, 9:35 PM CDTSevere Thunderstorm WarningMAFAndrews25 min
Apr 28, 9:58 PM CDTTornado WarningMAFAndrews, Gaines47 min

Nearby

Severe Thunderstorm Warnings in Texas, 1999Severe Thunderstorm Warnings in New Mexico, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.