Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 107, NWS Midland/Odessa, TX

June 20, 1998Upton County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Jun 20, 1998, 6:21 PM CDT for Upton County, Texas. It was in force for 44 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: Jun 20, 1998, 6:21 PM CDT (23:21 UTC)
Expired: Jun 20, 1998, 7:05 PM CDT
In force: 44 min
Issued by: NWS Midland/Odessa, TX
Area: Whole counties

County Upton County, TX

The radar

The Midland/Odessa radar (KMAF), 65 km from the middle of the area, began a volume at 23:22 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
Jun 20, 6:45 PM CDT	Thunderstorm Wind	Mc Camey, TX	Thunderstorm outflow winds knocked down at least one utility pole as well as some highway signs along Texas 329.

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 nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 11.4 hours before the alert went out and 66 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: 1182 J/kg
Mixed-layer CIN: -303 J/kg
Mixed-layer LCL: 2351 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Jun 20, 2:01 PM CDT, 4 hours 20 minutes earlier.

Area forecast discussion, Jun 20, 2:01 PM CDT, 4 hours 20 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 7:42 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Midland	33 min
Jun 20, 4:09 PM CDT	Severe Thunderstorm Warning	MAF	Pecos	31 min
Jun 20, 5:34 PM CDT	Severe Thunderstorm Warning	MAF	Crane	31 min
Jun 20, 5:53 PM CDT	Severe Thunderstorm Warning	MAF	Upton	32 min
Jun 20, 6:26 PM CDT	Tornado Warning	MAF	Upton	49 min

Nearby

Severe Thunderstorm Warnings in Texas, 1998 Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.