Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 7, NWS Midland/Odessa, TX

July 12, 1998Howard County, Texas

NWS Midland/Odessa, TX issued this tornado warning at Jul 12, 1998, 4:02 PM CDT for Howard County, Texas. It was in force for 13 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
Jul 12, 1998, 4:02 PM CDT (21:02 UTC)
Expired
Jul 12, 1998, 4:15 PM CDT
In force
13 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Howard County, TX

The radar

The Midland/Odessa radar (KMAF), 82 km from the middle of the area, began a volume at 21:06 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 12:00Z, 9.0 hours before the alert went out and 82 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 12:00Z on 1998-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 123 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 12:00Z on 1998-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 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
123 J/kg
Mixed-layer CIN
-425 J/kg
Mixed-layer LCL
2695 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

343 
WFUS1 KMAF 122104 RRA
TORMAF
TXC227-122115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
402 PM CDT SUN JUL 12 1998

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL HOWARD COUNTY IN NORTHWESTERN TEXAS

* UNTIL 415 PM CDT

* AT 357 PM CDT... LAW ENFORCEMENT INDICATED A TORNADO 12 MILES EAST
  OF BIG SPRING OR 3 MILES SOUTHEAST OF COAHOMA MOVING SOUTH AT 25
  MPH. THE HOWARD COUNTY SHERIFFS OFFICE REPORTED 100 MPH WINDS IN
  COAHOMA.

* THE TORNADO IS CURRENTLY EXPECTED TO AFFECT THE COAHOMA AREA
  WITH HIGH WINDS.

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

TJT/JCP


&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 4:03 PM CDTSevere Thunderstorm WarningMAFDawson32 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.