Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 239, NWS Shreveport, LA

June 13, 1997Bossier Parish, Caddo Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 13, 1997, 7:48 PM CDT for Bossier Parish, Caddo Parish, Louisiana. It was in force for 57 min. 3 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, 7:48 PM CDT (00:48 UTC)
Expired: Jun 13, 1997, 8:45 PM CDT
In force: 57 min
Issued by: NWS Shreveport, LA
Area: Whole counties

Counties Bossier Parish, LA, Caddo Parish, LA

The radar

The Shreveport radar (KSHV), 22 km from the middle of the area, began a volume at 00:50 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, 7:56 PM CDT	Thunderstorm Wind 90	Vivian, LA	Thunderstorms moved across extreme northwest Caddo Parish downing numerous trees and powerlines. The entire town of Vivian was left without power and Highway 1 from Vivian to Rodessa was closed due to tree blockage. One man was injured when a tree fell acros
Jun 13, 8:20 PM CDT	Thunderstorm Wind 65	Plain Dealing, LA	Trees uprooted along Hwy 3.
Jun 13, 8:44 PM CDT	Hail 0.75	Blanchard, LA

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

Shreveport, LA (KSHV), launched 00:00Z, 0.8 hours before the alert went out and 17 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

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

000 
TTAA00 KSHV 140048
SVRSHV
LAC015-017-140145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
748 PM CDT FRI JUN 13 1997
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM CDT
FOR THE FOLLOWING AREAS...
 
IN NORTHWEST LOUISIANA
 
   ...NORTHERN BOSSIER PARISH...NORTHERN CADDO PARISH
 
AT 745 PM CDT...THE SHREVEPORT DOPPLER WEATHER RADAR INDICATES A
SEVERE THUNDERSTORM JUST ENTERING NORTHWEST CADDO PARISH NORTHWEST
OF RODESSA.  THIS THUNDERSTORM IS MOVING SOUTHEASTWARD AT 20 MPH
AND WILL MOVE ACROSS NORTHERN SECTIONS OF CADDO AND BOSSIER
PARISHES BY 845 PM.
 
THIS SEVERE THUNDERSTORM HAS PRODUCED WINDS OF 75 MPH HOUR...HAIL
UP TO AN INCH IN SIZE AND DAMAGE IN SEVERAL NORTHEAST TEXAS COUNTIES.
RESIDENTS OF NORTHERN CADDO AND BOSSIER PARISHES SHOULD BE READY TO
TAKE QUICK ACTION TO PROTECT THEMSELVES AS THIS SEVERE THUNDERSTORM
MOVES THOUGH THE AREA.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND SOMETIMES DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.

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, 4 hours 33 minutes earlier.

Area forecast discussion, Jun 13, 3:15 PM CDT, 4 hours 33 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, 51 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

Local storm report, Jun 13, 7:04 PM CDT, 44 minutes before

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

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

0645 PM    MT PLEASANT               TX   WIND DAMAGE
06/13/97   TITUS                          NUMEROUS REPORTS OF DAMAGE
                                          TO STRUCTURES IN TOWN
                                          INCLUDING THE LOCAL SCHOOL AND
                                          WAREHOUSES IN TOWN.

0700 PM     DANGERFIELD              TX   70 MPH TSTM GUST
06/13/97    MORRIS                        GUSTS REPORTED FROM LOCAL
                                          STORM SPOTTERS
13
.
13

Local storm report, Jun 13, 7:07 PM CDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED SPACING...
NATIONAL WEATHER SERVICE SHREVEPORT LA
705 PM CDT FRI JUN 13 1997

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

0645 PM    MT PLEASANT               TX   WIND DAMAGE
06/13/97   TITUS                          NUMEROUS REPORTS OF DAMAGE
                                          TO STRUCTURES IN TOWN
                                          INCLUDING THE LOCAL SCHOOL AND
                                          WAREHOUSES IN TOWN.

0700 PM    DANGERFIELD               TX   70 MPH TSTM GUST
06/13/97   MORRIS                         GUSTS REPORTED FROM LOCAL
                                          STORM SPOTTERS
13

Local storm report, Jun 13, 7:20 PM CDT, 28 minutes before

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

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

0703 PM    5 SE DANGERFIELD          TX   WIND DAMAGE
06/13/97   MORRIS                         NUMEROUS TREES AND POWERLINES
                                          DOWN ALONG TX HWY 49. REPORT
                                          FROM LOCAL STORM SPOTTERS.

0711 PM    5 S PITTSBURG             TX   0.88 INCH HAIL
06/13/97   CAMP                           REPORT FROM LOCAL COOPERATIVE
                                          OBSERVER.

0714 PM    PINE                      TX   0.75 INCH HAIL.
06/13/97   CAMP

13

Local storm report, Jun 13, 7:46 PM CDT, 2 minutes before

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

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

0710 PM    3 E HUGHES SPRINGS        TX   70 MPH TSTM GUST
06/13/97   CASS

0715 PM    HUGHES SPRINGS            TX   WIND DAMAGE
06/13/97   CASS                           NUMEROUS REPORTS OF TREES AND
                                          POWERLINEzS DOWN.

0720 PM    5 NW ATLANTA              TX   WIND DAMAGE
06/13/97   CASS                           SEVERAL REPORTS OF TREES AND
                                          POWERLINES DOWN.

13

The office that day

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

Issued	Product	Office	Counties	Lasted
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 Louisiana, 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.