Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 5, NWS Midland/Odessa, TX

June 21, 1998Martin County, Texas

NWS Midland/Odessa, TX issued this tornado warning at Jun 21, 1998, 8:11 PM CDT for Martin County, Texas. It was in force for 34 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
Jun 21, 1998, 8:11 PM CDT (01:11 UTC)
Expired
Jun 21, 1998, 8:45 PM CDT
In force
34 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Martin County, TX

The radar

The Midland/Odessa radar (KMAF), 46 km from the middle of the area, began a volume at 01:11 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.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.2 hours before the alert went out and 46 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 1998-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2073 joules per kilogram.LCLEL10008507005003002001001 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 1998-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.193958Sfc1 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
2073 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
3023 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

871 
WFUS1 KMAF 220113 RRA
TORMAF
TXC317-220145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
811 PM CDT SUN JUN 21 1998

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN MARTIN COUNTY IN NORTHWESTERN TEXAS

* UNTIL 845 PM CDT

* AT 809 PM CDT... MIDLAND DOPPLER RADAR INDICATED A DEVELOPING
  TORNADO 21 MILES SOUTH OF LAMESA OR 7 MILES SOUTHWEST OF THREE
  LEAGUES MOVING EAST AT 5 MPH.

* THE TORNADO IS CURRENTLY EXPECTED TO REMAIN OVER RURAL AREAS ALONG
  HWY 349.

IF YOU ARE IN A CAR...GO IN A NEARBY STURDY BUILDING AS A LAST
RESORT LIE FLAT IN A DITCH AND COVER YOUR HEAD.

RSB/SVG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 7:12 PM CDTSevere Thunderstorm WarningMAFDawson, Martin48 min
Jun 21, 7:33 PM CDTFlash Flood WarningMAFDawson, Martin2 hr
Jun 21, 7:33 PM CDTFlash Flood WarningMAFDawson, Martin117 min
Jun 21, 7:59 PM CDTSevere Thunderstorm WarningMAFMartin46 min
Jun 21, 9:00 PM CDTTornado WarningMAFDawson35 min
Jun 21, 9:20 PM CDTSevere Thunderstorm WarningMAFHoward35 min
Jun 22, 5:01 PM CDTSevere Thunderstorm WarningMAFWard34 min
Jun 22, 5:36 PM CDTSevere Thunderstorm WarningMAFPecos34 min

Nearby

Tornado Warnings in Texas, 1998Every tornado warning in 1998Tornadoes in 1998

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.