Alert archive / Texas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 21, NWS Midland/Odessa, TX

April 2, 1999Reagan County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Apr 2, 1999, 10:41 PM CST for Reagan County, Texas. It was in force for 49 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 2, 1999, 10:41 PM CST (04:41 UTC)
Expired: Apr 2, 1999, 11:30 PM CST
In force: 49 min
Issued by: NWS Midland/Odessa, TX
Area: Whole counties

County Reagan County, TX

The radar

The Midland/Odessa radar (KMAF), 90 km from the middle of the area, began a volume at 04:40 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.

Issued	Product	Office	Lasted
Apr 2, 9:00 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 4.7 hours before the alert went out and 91 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 262 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 3070 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMAF 030441
SVRMAF
TXC383-030530-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
1041 PM CST FRI APR 2 1999

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN REAGAN COUNTY IN SOUTHWESTERN TEXAS

* UNTIL 1130 PM CST

* AT 1039 PM CST... MIDLAND DOPPLER RADAR DETECTED A SEVERE
  THUNDERSTORM 9 MILES NORTHWEST OF BIG LAKE OR 7 MILES SOUTH OF
  STILES... MOVING NORTHEAST AT 30 MPH.

THIS STORM IS EXPECTED TO REMAIN IN RURAL AREAS.

GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! A TORNADO
WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

RRF/RSB

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 2, 8:32 PM CST	Severe Thunderstorm Warning	MAF	Ector, Midland	48 min
Apr 2, 8:45 PM CST	Severe Thunderstorm Warning	MAF	Dawson	50 min
Apr 2, 8:48 PM CST	Severe Thunderstorm Warning	MAF	Martin	47 min
Apr 2, 9:08 PM CST	Tornado Warning	MAF	Midland	32 min
Apr 2, 9:19 PM CST	Severe Thunderstorm Warning	MAF	Upton	61 min
Apr 2, 9:34 PM CST	Severe Thunderstorm Warning	MAF	Howard	61 min
Apr 2, 9:38 PM CST	Severe Thunderstorm Warning	MAF	Martin	47 min
Apr 2, 9:46 PM CST	Severe Thunderstorm Warning	MAF	Pecos	49 min
Apr 2, 9:52 PM CST	Tornado Warning	MAF	Reagan, Upton	53 min
Apr 2, 10:49 PM CST	Severe Thunderstorm Warning	MAF	Scurry	31 min

Nearby

Severe Thunderstorm Warnings in Texas, 1999 Every 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.