Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 245, NWS Midland/Odessa, TX

June 12, 1997Terrell County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Jun 12, 1997, 4:50 PM CDT for Terrell County, Texas. It was in force for 50 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 12, 1997, 4:50 PM CDT (21:50 UTC)
Expired
Jun 12, 1997, 5:40 PM CDT
In force
50 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Terrell County, TX

The radar

The Midland/Odessa radar (KMAF), 191 km from the middle of the area, began a volume at 21:54 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

Del Rio, TX (KDRT), launched 12:00Z, 9.8 hours before the alert went out and 153 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, Del Rio, TX at 12:00Z on 1997-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2139 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, Del Rio, TX at 12:00Z on 1997-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.19395878Sfc1 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
2139 J/kg
Mixed-layer CIN
-182 J/kg
Mixed-layer LCL
981 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 122152 RRA
SVRMAF
TXC443-122240-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
450 PM CDT THU JUN 12 1997

THE NATIONAL WEATHER SERVICE IN MIDLAND TX HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 540 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WESTERN TEXAS

   ...NORTHEASTERN TERRELL COUNTY
 
AT 449 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY MIDLAND
DOPPLER RADAR 33 MILES NORTHEAST OF SANDERSON OR 25 MILES NORTHEAST
OF DRYDEN MOVING EAST AT 10 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 AN EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.


EARLE

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 12, 3:03 PM CDT, 1 hour 47 minutes earlier.

Area forecast discussion, Jun 12, 3:03 PM CDT, 1 hour 47 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND TX
301 PM CDT (201 PM MDT) THU JUN 12 1997

SURFACE OBSERVATIONS AT 18Z INDICATE A WEAK TROUGH/DRYLINE EXTENDING
FROM EAST OF AMA THROUGH JUST WEST OF LBB...THROUGH BGS TO EAST OF
P07.  TEMPERATURES ARE WARMING NICELY DUE TO DOWNSLOPE WINDS WEST OF
THE EASTWARD MOVING DRYLINE WITH CNM AT 97F AT 1PM MDT. INSTABILITIES
AND CAP VALUES LOWER WEST TO EAST...WITH LIS -6 AT MAF INCREASING TO
-10 EAST OF BGS.  SURFACE DEW POINT VALUES AT MAF RAPIDLY DROPPED
FROM 19C TO 09C IN LESS THAN TWO HOURS AS THE DRYLINE PASSED
THROUGH...AND WESTERLY WINDS AT KGDP ARE STEADILY ON THE INCREASE.

WATER VAPOR IMAGERY INDICATES AN UPSTREAM MID/UPPER LEVEL IMPULSE
OVER NEW MEXICO WHICH SHOULD MOVE ACROSS WEST TEXAS TONIGHT.  CURRENT
INDICATIONS ARE FOR THUNDERSTORMS TO DEVELOP ALONG DRYLINE OVER OR
EAST OF THE FAR EASTERN PERMIAN BASIN IN RESPONSE TO LOW LEVEL
MOISTURE CONVERGENCE ALONG THE DRYLINE...INSTABILITIES AND INCREASING
WINDS ALOFT.  OTHERWISE...DRY AND WINDY CONDITIONS WILL PERSIST INTO
FRIDAY.  ALL POPS BELOW ARE ZERO.

MAF  66/97
CNM  66/93
MRF  58/84
P07  69/98

FAGEN/MATHEWS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:07 PM CDTSevere Thunderstorm WarningMAFPecos48 min
Jun 11, 7:12 PM CDTSevere Thunderstorm WarningMAFAndrews48 min
Jun 11, 7:14 PM CDTSevere Thunderstorm WarningMAFDawson, Gaines51 min
Jun 11, 7:21 PM CDTSevere Thunderstorm WarningMAFDawson49 min
Jun 11, 7:38 PM CDTSevere Thunderstorm WarningMAFBorden47 min
Jun 11, 7:44 PM CDTSevere Thunderstorm WarningMAFMidland51 min
Jun 11, 7:56 PM CDTSevere Thunderstorm WarningMAFPecos49 min
Jun 11, 8:00 PM CDTSevere Thunderstorm WarningMAFEctor50 min
Jun 11, 8:21 PM CDTSevere Thunderstorm WarningMAFPecos49 min
Jun 11, 9:01 PM CDTSevere Thunderstorm WarningMAFUpton34 min
Jun 11, 9:14 PM CDTSevere Thunderstorm WarningMAFBrewster, Pecos51 min
Jun 11, 10:01 PM CDTTornado WarningMAFBrewster, Pecos34 min
Jun 11, 10:23 PM CDTTornado WarningMAFTerrell47 min
Jun 11, 10:34 PM CDTTornado WarningMAFBrewster, Pecos51 min
Jun 12, 12:38 AM CDTSevere Thunderstorm WarningMAFTerrell47 min
Jun 12, 6:39 PM CDTSevere Thunderstorm WarningMAFReeves41 min
Jun 12, 6:41 PM CDTSevere Thunderstorm WarningMAFPecos49 min

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.