Alert archive / Louisiana / Tornado Warnings in 1986

Tornado Warning 5, NWS Shreveport, LA

March 18, 1986Jackson Parish, Ouachita Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Mar 18, 1986, 2:25 PM CST for Jackson Parish, Ouachita Parish, Louisiana. It was in force for 60 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
Mar 18, 1986, 2:25 PM CST (20:25 UTC)
Expired
Mar 18, 1986, 3:25 PM CST
In force
60 min
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Jackson Parish, LA, Ouachita 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
Mar 18, 2:25 PM CSTTornado F2Jackson, LA
Mar 18, 2:25 PM CSTTornado F2Ouachita, LA
Mar 18, 2:42 PM CSTThunderstorm Wind 0Ouachita, 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 12:00Z, 8.4 hours before the alert went out and 211 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 12:00Z on 1986-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 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 12:00Z on 1986-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 425 square meters per square second.1939587897117136156Sfc1 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
39 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
557 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
425 m²/s²
0-3 km storm-relative helicity
481 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 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, Mar 18, 8:40 AM CST, 5 hours 45 minutes before
NEWSPSSHV
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
840 AM CST TUE MAR 18 1986

SLOW MOVING BAND OF SHOWERS AND HEAVY THUNDERSTORMS OVER NORTHEAST
TEXAS AND SOUTHWEST ARKANSAS. ANOTHER BAND OVER NORTH LOUISIANA.

AT 840 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT WAS
SHOWING A BAND OF SHOWERS AND SCATTERED HEAVY THUNDERSTORMS FROM
NEAR NASHVILLE ARKANSAS TO NORTHWEST OF TEXARKANA TO NEAR MT PLEASANT
TEXAS TO THE TYLER AREA ON TO NEAR PALESTINE TEXAS.

THE BAND WAS MOVING EAST NEAR 10 MPH WHILE INDIVIDUAL THUNDERSTORMS
WERE MOVING NORTHEAST AT 30 MPH. HEAVY RAINFALL AND STRONG GUSTY WINDS
ALONG WITH FREQUENT LIGHTNING LIKELY OCCURRING.

OVER NORTH LOUISIANA A BAND OF SHOWERS AND ISOLATED THUNDERSTORMS WERE
OCCURRING FROM SOUTHEAST OF EL DORADO TO SOUTHWEST OF RUSTON TO NEAR
NATCHITOCHES THROUGH LOWER TOLEDO BEND LAKE. LITTLE MOVMENT OF THIS
SYSTEM WILL TAKE PLACE THIS MORNING.

THUNDERSTORMS OVER THE WESTERN SECTIONS OF NORTHEAST TEXAS INTO THE
EXTREME SOUTHEAST OKLAHOMA AND ADJACENT AREA OF SOUTHWEST ARKANSAS
WILL INCREASE TO VERY STRONG BY LATE MORNING AND BEGIN TO SPREAD EAST.

STRONG AND POSSIBLE SEVERE STORMS ARE EXPECTED OVER THE NORTHWEST HALF
OF THE ARKLATEX ALONG WITH HEAVY RAINFALL AND EASTWARD OVER THE EASTERN
SECTIONS TONIGHT.
Special weather statement, Mar 18, 9:20 AM CST, 5 hours 5 minutes before
NEWSPSSHV
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
920 AM CST TUE MAR 18 1986

SLOW MOVING BAND OF SHOWERS AND HEAVY THUNDERSTORMS OVER NORTHEAST
TEXAS AND SOUTHWEST ARKANSAS. ANOTHER BAND OVER NORTH LOUISIANA.

AT 920 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT WAS
SHOWING A BAND OF SHOWERS AND SCATTERED HEAVY THUNDERSTORMS FROM
NEAR NASHVILLE ARKANSAS TO NORTHWEST OF TEXARKANA TO THE LONGVIEW
AREA ON TO NEAR CROCKETTE TEXAS.AR PALESTINE TEXAS.

THE BAND WAS MOVING EAST NEAR 15 MPH ALONG ITS SOUTHERN FLANK AND LESS
THAN 10 MPH ALONG ITS NORTHERN FLANK. HEAVY RAINFALL OF ONE TO OVER
TWO INCHES FALLING IN ONE HOURS TIME WITH THIS BAND...ALSO GUSTY WINDS
OF 30 TO 45 MPH REPORTED. SOME STREET FLOODIG WILL DEVELOP.

OVER NORTH LOUISIANA A BAND OF SHOWERS AND ISOLATED THUNDERSTORMS WERE
OCCURRING FROM SOUTHEAST OF EL DORADO TO SOUTHWEST OF RUSTON TO NEAR
NATCHITOCHES THROUGH LOWER TOLEDO BEND LAKE. LITTLE MOVMENT WILL OCCUR
ON THIS SYSTEM THIS MORING.

THUNDERSTORMS OVER THE WESTERN SECTIONS OF NORTHEAST TEXAS INTO THE
EXTREME SOUTHEAST OKLAHOMA AND ADJACENT AREA OF SOUTHWEST ARKANSAS
WILL INCREASE TO VERY STRONG BY LATE MORNING WHILE SPREADING EAST.

STRONG AND POSSIBLE SEVERE STORMS ARE EXPECTED OVER THE NORTHWEST HALF
OF THE ARKLATEX ALONG WITH HEAVY RAINFALL AND EASTWARD OVER THE EASTERN
SECTIONS TONIGHT.
Special weather statement, Mar 18, 10:11 AM CST, 4 hours 14 minutes before
NEWSPSSHV
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1010 AM CST TUE MAR 18 1986

LINE OF SHOWERS AND HEAVY THUNDERSTORMS CONTINUE TO SPREAD EAST ACROSS
NORTHEAST TEXAS AND SOUTHWEST ARKANSAS.

FOWARD SPEED OF LINE HAS INCREASED TO NEAR 25 MPH THUR RAINFALL AMOUNTS
AT ANY GIVEM LOCATION NOW LIMITIED TO GENERALLY LESS THAN ONE INCH. GUSTY
WINDS OF 20 TO 35 MPH ALSO OCCURRING.

AT 1010 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT WAS SHOW
ING THE 20 MILE WIDE LINE OF SHOWERS AND HEAVY THUNDERSTORMS FRM NEAR
HOT SPRINGS ARKANSAS TO TEXARKANA TO NEAR MARSHALL TEXAS ON TO NEAR
NACOGDOCHES TEXAS.

STRONGEST THUNDERSTORMS WERE FROM THE TEXARKANA AREA SOUTHWARD TO NEAR
MARSHALL AND HENDERSON TEXAS.
.
THE LINE WILL CONTINUE TO OVERSPREAD THE REMAINDER OF NORTHEAST TEXAS AND
SOUTHWEST ARKANSAS AND WILL ENTER THE NORTHWEST TIP OF LOUISIANA BY 1030
AM CST...AND CONTINUE TO SPREAD EAST. THE LINE WILL SLOW ONCE AGAIN BY
THE NOON HOUR.

MEANWHILE...ANOTHER BAND BAND OF SHOWERS AND ISOLATED THUNDERSTORMS WERE
LOCATED FROM THE OUACHITA RIVER WEST OF HAMBURG ARKANSAS TO NEAR RUSTON
IN NORTHCENTRAL LOUISIANA TO NEAR NATCHITOCHES LOUISIANA. LITTLE OR
NO MOVMENT ON THE SYSTEM...THUNDERSTORMS MOVING NORTHEAST NEAR 30 MPH.

OTHER SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER NORTHWEST AND CENTRAL
LOUISIANA AS THE SYSTEM FROM THE WEST APPROCHES.

ALSO..LATER TODAY THUNDERSTORMS WILL LIKELY REFORM OVER THE WESTERN PARTS
OF NORTHEAST TEXAS AND THE ADJACENT AREAS AND SPREAD EAST..STRONG AND
POSSIBLY SEVERE STORMS WILL DEVELOP AND AFFECT THE AREA LATER THIS
AFTERNOON AND TONIGHT.
Special weather statement, Mar 18, 11:20 AM CST, 3 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1120 AM CST TUE MAR 18 1986

BAND OF SHOWERS AND THUNDERSTORMS CONTINUE TO SPREAD EAST...STRONG
GUSTY WINDS OF 30 TO 45 MPH ALONG WITH HEAVY RAINFALL OCCURRING.

AT 1120 AM CST THE NATIONAL WEAHTHER SERVICE RADAR IN SHREVEPORT WAS
SHOWING THE BAND OF SHOWERS AND HEAVY THUNDERSTORMS FROM PRESCOTT
AND MAGNOLIA ARKANSAS SOUTHWARD ACROSS THE SHREVEPORT AREA ON TO
NEAR CENTER TEXAS.

THE SYSTEM WAS MOVING TO THE EAST NEAR 25 MPH.

ANOTHER BAND OF SHOWERS AND THUNDERSTORMS WERE LOCATED FROM MANSFIELD
LOUISIANA ACROSS TOLEDO BEND LAKE TO NEAR WOODVILLE IN EAST CENTRAL
TEXAS.

YET ANOTHER BAND OF SHOWERS AND THUNDERSTORMS WAS LOCATED FROM NEAR
OAK GROVE IN NORTHEAST LOUISIANA TO JUST NORTHWEST OF ALEXANDRIA.

THESE SYSTEMS WILL CONTINUE TO SPREAD EAST THIS AFTERNOON...AND
THUNDERSTORMS ARE EXPECTED TO REFORM OVER THE WESTERN SECTIONS
OF NORTHEAST TEXA:S AND SPREAD EASTWARD ACROSS THE ARKLATED TONIGHT.

A FEW OF THESE STORMS WILL REACH STRONG AND POSSIBLE SEVERE INTENSITY.
Special weather statement, Mar 18, 12:39 PM CST, 1 hour 46 minutes before
NEWSPSSHV
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1240 PM CST TUE MAR 18 1986

BAND OF HEAVY THUNDERSTORMS CONTINUES MOVING ACROSS NORTHERN LOUISIANA

THE SHREVEPORT WEATHER RADAR AT 12:35 PM SHOWED THE BAND OF HEAVY
THUNDERSTORMS FROM NEAR FORDYCE AND CAMDEN ARKANSAS EXTENDING
SOUTHWESTWARD ACROSS ELDORADO ARKANSAS...THROUGH HOMER...ARCADIA
AND COUSHATTA LOUISIANA ON TO 30 MILES SOUTHEAST OF LUFKING TEXAS.

THE: BAND OF HEAVY THUNDERSTORMS WILL CONTINUE TO MOVE EASTWARD AT
NEAR 25 MPH ACROSS NORTHCENTRAL AND NORTHEAST LOUISIANA THIS AFTERNOON.
HEAVY RAIN...STRONG GUSTY WINDS AND LIGHTNING WILL OCCUR.
Special weather statement, Mar 18, 1:40 PM CST, 45 minutes before
NEWSPSSHV
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
140 PM CST TUE MAR 18 1986

SHOWERS AND HEAVY THUNDERSTORMS CONTINUE OVER NORTHERN LOUISIANA

AT 1:35 PM CST THE SHREVEPORT WEATHER RADAR CONTINUED TO SHOW THE
LINE OF HEAVY THUNDERSTORMS FROM NEAR WARREN AND EL DORADO ARKANSAS
SOUTHWESTWARD ACROSS RUSTON AND JONESBORO LOUISIANA ON TO THE
TOLEDO BEND COUNTRY WEST OF LEESVILLE.

HEAVY THUNDERSTORMS WERE DEVELOPING OVER NORTHEAST LOUISIANA AHEAD
OF THE LINE...FROM ABOUT 15 MILES EAST OF BASTROP THROUGH JUST WEST
OF WINNSBORO TO JUST NORTHEAST OF ALEXANDRIA.

MOVEMENT WAS TO THE EAST NEAR 25 MPH.

THE THUNDERSTORMS DEVELOPING OVER NORTHEAST LOUISIANA WIZLL LIKELY
PRODUCE VERY HEAVY RAINFALL...STRONG GUSTY WINDS AND HAIL.  THE
LINE OF THUNDERSTORMS OVER NORTHCENTRAL LOUISIANA WILL CONTINUE MOVING
EASTWARD AND WILL PRODUCE STRONG GUSTY WINDS AND HEAVY RAIN.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 1:45 PM CSTSevere Thunderstorm WarningSHVEast Carroll, West Carroll60 min
Mar 18, 2:35 PM CSTSevere Thunderstorm WarningSHVMadison, Tensas65 min
Mar 18, 2:35 PM CSTSevere Thunderstorm WarningSHVMorehouse, West Carroll65 min

Nearby

Tornado Warnings in Louisiana, 1986Every tornado warning in 1986Tornadoes in 1986

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.