Alert archive / Louisiana / Tornado Warnings in 1987

Tornado Warning 4, NWS Shreveport, LA

November 15, 1987Bossier Parish, Caddo Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Nov 15, 1987, 6:25 PM CST for Bossier Parish, Caddo Parish, Louisiana. It was in force for 65 min. 2 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
Nov 15, 1987, 6:25 PM CST (00:25 UTC)
Expired
Nov 15, 1987, 7:30 PM CST
In force
65 min
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Bossier Parish, LA, Caddo Parish, LA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Nov 15, 7:00 PM CSTTornado F3Caddo, LA
Nov 15, 7:40 PM CSTTornado F1Bossier, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 0.4 hours before the alert went out and 86 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, Longview/Gregg, TX at 00:00Z on 1987-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1248 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, Longview/Gregg, TX at 00:00Z on 1987-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 287 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
1248 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
287 m²/s²
0-3 km storm-relative helicity
316 m²/s²
Significant tornado parameter
2.5
Supercell composite
9.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 160031 RRA
TORSHV
TXC315-067-419-365-LAC031-015-017-160130-

BULLETIN...EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
625 PM CST SUN NOV 15 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE
UNTIL 7:30 PM CST   FOR PEOPLE IN THE FOLLOWING COUNTIES/PARISHES IN

NORTHEAST TEXAS...MARION...CASS...NORTHEAST HALF OF SHELBY AND THE
                   SOUTHEAST HALF OF PANOLA.

NORTHWEST LOUISIANA...DE SOTO...SOUTHERN HALF OF CADDO AND THE SOUTHERN
                      HALF OF BOSSIER.

AT 6:23 PM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED
POSSIBLE TORNADOES LOCATED NEAR LOGANSPORT LOUISIANA AND ANOTHER NEAR
THE NORTHWEST SHORE OF LAKE OF THE PINES...NORTHEAST OF CEDAR SPRINGS.
.
PERSONS IN THE PATH OF THIS TORNADO SHOULD SEEK SHELTER IN A PERMANENT
STRUCTURE ON THE LOWEST FLOOR IN AN INTERIOR SMALL ROOM.  GET UNDER A
PIECE OF HEAVY FURNITURE OR COVER YOURSELF WITH SOME=THING TO PROTECT
AGAINST FLYING OR FALLING DEBRIS.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Nov 15, 1:29 PM CST, 4 hours 56 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
125 PM CST SUN NOV 15 1987

TORNADO WATCH IS IN EFFECT FOR PORTIONS OF NORTHEAST TEXAS
UNTIL 8:00 PM.

AT 1:20 PM THE SHREVEPORT WEATHER RADAR AN AREA OF SHOWERS AND
VERY HEAVY THUNDERSTORMS FROM JUST SOUTHEAST OF THE DALLAS-FORT
WORTH AREA EXTENDING THROUGH JUST WEST OF PARIS TEXAS TO 25 EAST
OF MC ALESTER OKLAHOMA.  HEAVIEST ACTIVITY WAS LOCATED JUST
WEST OF PARIS.

ANOTHER VERY HEAVY THUNDERSTORM WAS LOCATED ABOUT 15 MILES NORTH
NORTHEAST OF COLLEGE STATION TEXAS...WITH SCATTERED LIGHT TO
MODERATE SHOWERS DEVELOPING OVER NORTHWEST LOUISIANA AROUND THE
SHREVEPORT AREA AND EXTEDNING SOUTHWARD TO AROUND LEESVILLE AND
DERIDDER.

SHOWERS AND VERY HEAVY THUNDERSTORMS WILL CONTINUE TO INCREASE
OVER PORTIONS OF NORTHEAST TEXAS AND SPREAD ACROSS EXTREME
NORTHEAST TEXAS AND EXTREME SOUTHEAST OKLAHOMA THIS AFTERNOON...
THEN MOVING INTO SOUTHWEST ARKANSAGS AND NORTHWEST LOUISIANA
LATER THIS AFTERNOON INTO THIS EVENING.

PERSONS IN OR CLOSE TO THE TORNADO WATCH AREA ARE ADVISED TO
REMAIN ALERT FOR RAPID LOCAL WEATHER DEVELOPMENTS AND TO
LISTEN FOR LATER STATEMENTS OR WARNINGS.
Special weather statement, Nov 15, 2:45 PM CST, 3 hours 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
245 PM CST SUN NOV 15 1987

...TORNADO WATCH IS IN EFFECT FOR PORTIONS OF NORTHEAST TEXAS
UNTIL 800 PM..STRONG THUNDERSTORMS MOVING INTO SOUTHWEST MCCURTAIN
COUNTY OKLAHOMA..ISOLATED THUNDERSTORMS DEVELOPING OVER WEST
CENTRAL LOUISIANA AND EAST CENTRAL TEXAS...

WEATHER SEVICE RADAR SHOWED A BAND OF SHOWERS AND THUNDERSTORMS
EXTENDING FROM EXTREME SOUTHEAST OKLAHOMA IN NORTHWEST MCCURTAIN
COUNTY SOUTH INTO CENTRAL TEXAS. STRONGEST ACTIVITY WAS IN RED RIVER
VALLEY BETWEEN HUGO AND WRIGHT CITY. THE BAND OF SHOWERS AND
THUNDERSTORMS WAS MOVING SOUTHEAST AT 15 MPH AND INDIVIDUAL CELLS
WERE MOVING NORTHEAST AT 30 TvO 35 MPH.

RADAR ALSO SHOWED SCATTERED SHOWERS AND THUNDERSTORMS FROM EAST TEXAS
NEAR LUFKIN EAST INTO WEST CENTRAL LOUISIANA. STRONGER THUNDERSTORMS
WERE LOCATED NEAR CONVERSE AND ZWOLLE LOUISIANA. MOVEMENT WAS TO THE
NORTH AT 30 MPH.
Special weather statement, Nov 15, 4:11 PM CST, 2 hours 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
410 PM CST SUN NOV 15 1987

...TORNADO WATCH IS IN EFFECT FOR PORTIONS OF NORTHEAST TEXAS
UNTIL 800 PM...
...FLASH FLOOD WATCH IN EFFECT FOR NORTH CENTRAL AND NORTHEAST
TEXAS FOR THIS AFTERNOON..TONIGHT AND MONDAY..AND SOUTHWEST
ARKANSAS TONIGHT...

WEATHER SERVICE RADAR AT 400 PM SHOWED A BAND OF SHOWERS AND THUNDER-
STORMS EXTENDING FROM EXTREME SOUTHEAST OKLAHOMA IN NORTHEAST MCCURTAIN
COUNTY SOUTH INTO CENTRAL AND EAST TEXAS. STRONGEST ACTIVITY WAS
LOCATED IN NORTHEAST MCCURTAIN COUNTY OKLAHOMA AND EAST RED RIVER
COUNTY TEXAS. ANOTHER AREA OF STRONG THUNDERSTORMS WAS LOCATED
IN ANDERSON..HENDERSON AND CHEROKEE COUNTIES TEXAS. THE BAND WAS
MOVING TO THE SOUTHEAST AT 15 MPH WHILE THE INDIVIDUAL CELLS WERE
MOVING TO THE NORTHEAST AT 30 TO 35 MPH. THE STRONG THUNDERSTORMS
IN ANDERSON AND CHEROKEE COUNTIES TEXAS HAVE PRODUCED TORNADOES WITH
INJURIES REPORTED. CITIZENS IN LONGVIEW AND TYLER AREAS SHOULD KEEP
POSTED TO LATEST DEVELOPMENTS..ESPECIALLY PERSONS IN RUSK AND GREGG
COUNTIES.

ANOTHER BAND OF SHOWERS AND THUNDERSTORMS WERE LOCATED IN NORTHWEST
LOUISIANA EXTENDING FROM JUST NORTHEAST OF RUSTON TO MANY. MOVEMENT
WAS TO THE NORTH AT ABOUT 30 MPH. STRONGEST ACTIVITY WAS LOCATED IN
SOUTHERN NATCHITOCHES AND SABINE PARISHES.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 15, 6:20 PM CSTSevere Thunderstorm WarningSHVBossier, Caddo, De Soto70 min
Nov 15, 6:25 PM CSTTornado WarningSHVDe Soto65 min
Nov 15, 7:25 PM CSTTornado WarningSHVBossier, Caddo, Webster65 min
Nov 15, 9:15 PM CSTSevere Thunderstorm WarningSHVMorehouse, Ouachita, Richland60 min
Nov 16, 12:20 AM CSTTornado WarningSHVFranklin, Tensas70 min
Nov 16, 12:30 AM CSTFlash Flood WarningSHVBossier, Caddo, De Soto4 hr
Nov 16, 1:45 AM CSTSevere Thunderstorm WarningSHVFranklin, Tensas60 min
Nov 16, 3:20 AM CSTSevere Thunderstorm WarningSHVTensas55 min
Nov 16, 4:15 AM CSTFlash Flood WarningSHVCaldwell, Jackson, Winn2 hr
Nov 16, 5:05 AM CSTSevere Thunderstorm WarningSHVMadison55 min
Nov 16, 9:47 AM CSTSevere Thunderstorm WarningSHVBossier, Webster58 min
Nov 16, 9:47 AM CSTSevere Thunderstorm WarningSHVCaddo58 min
Nov 16, 10:00 AM CSTFlash Flood WarningSHVCaldwell, Franklin, Jackson, Ouachita, Winn4 hr
Nov 16, 10:00 AM CSTFlash Flood WarningSHVDe Soto, Sabine4 hr
Nov 16, 10:00 AM CSTFlash Flood WarningSHVBienville, Bossier, Caddo, Natchitoches, Red River4 hr
Nov 16, 10:00 AM CSTFlash Flood WarningSHVClaiborne, Webster4 hr
Nov 16, 1:10 PM CSTSevere Thunderstorm WarningSHVFranklin, Madison, Tensas58 min
Nov 16, 4:25 PM CSTFlash Flood WarningSHVCaldwell, Ouachita4 hr
Nov 16, 4:25 PM CSTFlash Flood WarningSHVFranklin, Madison, Richland, Tensas4 hr

Nearby

Tornado Warnings in Louisiana, 1987Every tornado warning in 1987Tornadoes in 1987

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.