Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 236, NWS Shreveport, LA

June 13, 1997Cass County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 13, 1997, 7:02 PM CDT for Cass County, Texas. It was in force for 58 min. 4 reports 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 13, 1997, 7:02 PM CDT (00:02 UTC)
Expired: Jun 13, 1997, 8:00 PM CDT
In force: 58 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Cass County, TX

The radar

The Shreveport radar (KSHV), 84 km from the middle of the area, began a volume at 00:00 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 13, 7:10 PM CDT	Thunderstorm Wind 70	Hughes Spgs, TX
Jun 13, 7:15 PM CDT	Thunderstorm Wind 70	Hughes Spgs, TX	Numerous trees and power lines toppled with power outages to the entire city.
Jun 13, 7:18 PM CDT	Thunderstorm Wind 70	Linden, TX	Severe thunderstorms which produced so much damage across northeast Texas continued to move east into Cass County. Numerous trees and power lines were toppled. A total of 50 telephone poles were broken in the city smashing cars and homes. Plenty of warning
Jun 13, 7:20 PM CDT	Thunderstorm Wind 60	Atlanta, TX

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 13, 4:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 0.0 hours before the alert went out and 87 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: 3531 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1065 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 39 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.9

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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 13, 3:15 PM CDT, 3 hours 47 minutes earlier.

Area forecast discussion, Jun 13, 3:15 PM CDT, 3 hours 47 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
310 PM CDT FRI JUN 13 1997

AN ATMOSPHERE TEMPO STABILIZED BY MRNG CONVECTION ATTM APPEAR TO BE
READY TO UNCORK AS A VORT LOBE INTERACTS WITH FNTL BNDRY ACRS CNTRL-SE
OK AND UPR JET NOSES INTO EAST TX. SRLY WINDS INCREASED MARKEDLY ACRS
NW 2/3 OF CWA DURG PAST COUPLE HOURS. STORMS POPPING ON N-NW LIMITS
OF SHV RADAR AND BLDG CLDS OVHD. VERY HIGH CAPES OVR EAST TX COMBINED
WITH SEASONABLY DECENT LOW LVL SHEAR AND UPR DIV SUGGEST A TORNADIC
POTENTIAL. AFT LOOKING AT FNTL POSN AND STG THETA-E ADV ALL NIGHT OVR
NE TX HAVE TO CONSIDER STORMS MAY LAST WELL INTO NIGHT. WITH 90% BNDRY
LYR RH SPREADING TONIGHT SHOULD SEE RA AND/OR FOG AREAWIDE. AS FNT
WASHES OUT OVR AREA ON SAT...PLENTIFUL 850 MSTR KEEP SOME CLDS IN AND
GIVE US ONE MORE DAY OF SUB-90 WX. PROB WONT BE SO LUCKY ON SUN WITH
STGR SOUTH FLOW AND DRYER AIR EARLY. HOWEVER...70% MEAN RH QUICKLY
SPREADING ACROSS NORTHERN CWA AS TROF DEEPENS OVR HIGH PLAINS.
GIVEN RECENT TRENDS AND CLD CVR...WILL COMPRO ON MODEL HIGH TEMPS.
STICK WITH WARMER FWC LOWS FOR TONIGHT GIVEN DEWPOINTS.
SHV 73/89/70/91  4213        MLU 72/85/70/89  3212

VII

In the hours before

Local storm report, Jun 13, 6:57 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
655 PM CDT FRI JUN 13 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0600 PM    2 SE BOGATA               TX   70 MPH TSTM GUST
06/13/97   RED RIVER                      REPORTED FROM LOCAL S.O.

0630 PM    MT PLEASANT               TX   70 MPH TSTM GUST
06/13/97   TITUS                          UPROOTED TREES WITH DAMAGE TO
                                          SOME ROOFS OF HOMES IN TOWN..

0620 PM    3 N MT VERNON             TX   0.75 INCH HAIL
06/13/97   FRANKLIN

0628 PM    10 NE MT VERNON           TX   WIND DAMAGE
06/13/97   FRANKLIN                 T      POSSIBLE TORNADO REPORTED
                                          FROM LOCAL S.O.
.
13

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 13, 7:16 PM CDT	Severe Thunderstorm Warning	SHV	Marion	44 min
Jun 13, 7:23 PM CDT	Severe Thunderstorm Warning	SHV	Upshur	52 min
Jun 13, 7:53 PM CDT	Severe Thunderstorm Warning	SHV	Harrison	67 min
Jun 13, 8:14 PM CDT	Severe Thunderstorm Warning	SHV	Franklin, Wood	46 min
Jun 13, 9:32 PM CDT	Severe Thunderstorm Warning	SHV	Gregg	28 min
Jun 13, 9:58 PM CDT	Severe Thunderstorm Warning	SHV	Panola	62 min
Jun 13, 10:13 PM CDT	Severe Thunderstorm Warning	SHV	Wood	47 min
Jun 13, 10:33 PM CDT	Severe Thunderstorm Warning	SHV	Upshur	57 min
Jun 13, 11:02 PM CDT	Severe Thunderstorm Warning	SHV	Gregg	28 min
Jun 13, 7:48 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo	57 min
Jun 13, 8:43 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo	62 min
Jun 13, 9:16 PM CDT	Severe Thunderstorm Warning	SHV	De Soto	59 min
Jun 13, 9:20 PM CDT	Severe Thunderstorm Warning	SHV	Bienville	55 min
Jun 13, 9:41 PM CDT	Severe Thunderstorm Warning	SHV	Jackson	64 min
Jun 13, 9:56 PM CDT	Severe Thunderstorm Warning	SHV	Winn	64 min

Nearby

Severe Thunderstorm Warnings in Texas, 1997 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.