Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 1, NWS Midland/Odessa, TX

February 19, 1997Pecos County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Feb 19, 1997, 7:03 PM CST for Pecos County, Texas. It was in force for 32 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
Feb 19, 1997, 7:03 PM CST (01:03 UTC)
Expired
Feb 19, 1997, 7:35 PM CST
In force
32 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Pecos County, TX

The radar

The Midland/Odessa radar (KMAF), 139 km from the middle of the area, began a volume at 01:07 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, 1.1 hours before the alert went out and 139 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 1997-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 319 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 1997-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.1939587897Sfc1 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
319 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
963 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 200105 RRA
SVRMAF
TXC371-200135-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
703 PM CST WED FEB 19 1997

THE NATIONAL WEATHER SERVICE IN MIDLAND TX HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 735 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WESTERN TEXAS

   ...CENTRAL PECOS COUNTY
 
AT 702 PM CST...A SEVERE THUNDERSTORM WAS INDICATED BY MIDLAND
DOPPLER RADAR 14 MILES EAST OF FORT STOCKTON MOVING WEST AT 20 MPH.

THIS STORM IS EXPECTED TO REMAIN IN RURAL AREAS.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN A.N EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

$$

BOYD/FAGAN/YOUNG

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 Feb 19, 6:26 PM CST, 37 minutes earlier.

Area forecast discussion, Feb 19, 6:26 PM CST, 37 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND TX
624 PM CST (524 PM MST) WED FEB 19 1997

QUICK ANALYSIS OF 6 PM MAF SOUNDING INDICATES LIFTED INDEX OF
-3...WET BULB ZERO OF 6500 FT AND TROPOPAUSE AT 29400 FT. STEEP LAPSE
RATES ARE INDICATED WITH 0C TEMPS AT 11K FT AND -20C TEMPS AT 20K FT.
KMAF 88D AND LIGHTNING DATA AT 6 PM INDICATES MAIN THUNDERSTORM
ACTIVITY OVER SOUTHERN LEA COUNTY AND OVER THE BIG BEND REGION...WITH
SMALL HAIL POSSIBLE WITH THE STRONGER STORMS AND STEEP LAPSE RATES.
EXPECT THUNDERSTORM ACTIVITY TO CONTINUE FOR THE NEXT TWO HOURS OVER
SE NM AND SW TX...BUT REMAINING BELOW SEVERE LIMITS.

FAGEN/BOYD

Nearby

Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997

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.