Alert archive / Louisiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 13, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Feb 15, 1987, 11:05 AM CST for Franklin Parish, Madison Parish, Louisiana. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Feb 15, 1987, 11:05 AM CST (17:05 UTC)
- Expired
- Feb 15, 1987, 12:00 PM CST
- In force
- 55 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Franklin Parish, LA, Madison Parish, LA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 5.1 hours before the alert went out and 130 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WTAA00 KSHV 151715 SVRSHV LAC083-065-151800- BULLETIN...IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 1105 AM CST SUN FEB 15 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1200 NOON CST FOR PEOPLE IN THE FOLLOWING PARISHES.... NORTHEAST LOUISIANA...FRANKLIN AND MADISON AT 1100 AM CST LAW ENFORCEMENT AGENCIES REPORTED DAMAGE TO SEVERAL HOMES IN NORTHEAST FRANKLIN PARISH. WEATHER SERVICE RADAR SHOWED A BAND OF SHOWERS AND THUNDERSTORMS THAT EXTENDED FROM SOUTH CENTRAL ARKANSAS SOUTHEAST INTO NORTHEAST LOUISIANA FROM NEAR EL DORADO TO ST JOESPH. LAW ENFORCEMENT OFFICIALS ALSO REPORTED SEVERAL COTTON TRAILERS IN TENSAS PARISH ABOUT 12 MILES WEST SOUTH WEST OF ST JOESPH BEING BLOWN ONTO A ROADWAY IN THE COOLER POINT AREA. SEVERAL ROAD SIGNS WERE ALSO REPORTED TO BE TWISTED DOWN. THE SHOWERS AND THUNDERSTORMS OVER NORTHEAST LOUISIANA WERE MOVING TO 3THE NORTHEAST AT 45 MPH.
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.
In the hours before
Special weather statement, Feb 15, 5:16 AM CST, 5 hours 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 510 AM CST SUN FEB 15 1987 TWO BANDS OF THUNDERSTORMS CONTINUED TO SPREAD EAST ACROSS THE ARKLATEX PRODUCING GUSTY WINDS AND BRIEF HEAVY RAINS. THE THUNDERSTORMS HAD CHANGED LITTLE IN INTENSITY DURING THE PAST HOUR HOWEVER CONDITIONS REMAIN FAVORABLE FOR SOME INTENSIFICATION ALONG THE LEADING EDGE OF STORMS. A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF NORTH LOUISIANA AND THE ADJACENT AREAS OF WEST CENTRAL LOUISIANA AND EAST CENTRAL TEXAS. AT 5:00 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A BAND OF THUNDERSTORMS THAT EXTENDED FROM NEAR MAGNOLIA ARKANSAS OVER THE MINDEN AREA TO MANSFIELD LOUISIANA TO NEAR SAN AUGUSTINE TEXAS. ANOTHER BAND OF THUNDERSTORMS EXTENDED FROM NEAR TEXARKANA ACROSS THE LONGVIEW AREA TO NEAR NACOGDOCHES TEXAS. MOVEMENT WAS EAST SOUTHEAST NEAR 20 MPH. SHOWERS WERE ALSO DEVELOPING AHEAD OF THIS SYSTEM FROM NEAR FARMERVILLE TO RISTON TO WINNFIELD LOUISIANA. AT 5:00 AM THE STRONGEST STORMS WERE INDICATED NEAR MINDEN AND NEAR MANSFIELD LOUISIANA. SHOWERS AND THUNDERSTORMS WILL CONTINUE TO SPREAD ACROSS THE AREA TODAY WITH THE MAIN THREAT FOR SEVERE WEATHER SHIFTING TO THE EAST AND SOUTH AS THE DAY PROGRESSES.
Special weather statement, Feb 15, 6:34 AM CST, 4 hours 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 630 AM CST SUN FEB 15 1987 ...RAIN AND SHOWERS WITH EMBEDDED THUNDERSTORMS WIDESPREAD OVER THE ARKLATEX..SPREADING EAST ACROSS NORTH CENTRAL INTO NORTHEAST LOUISIANA... THE TORNADO WATCH FOR NORTH LOUISIANA AND SOUTHEAST TEXAS HAS BEEN CANCELLED AND IS NO LONGER IN EFFECT. THE WATCH HAS BEEN SHIFTED TO SOUTH LOUISIANA. AT 630AM THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT WAS SHOWING THE LEADING EDGE OF A LARGE AREA OF RAIN..SHOWERS AND EMBEDDED THUNDER- STORMS FROM NORTH OF FARMERVILLE LOUISIANA SOUTHWEST TO JONESBORO AND LEESVILLE LOUISIANA. THE AREA EXTENDED WEST ACROSS THE ARKLATEX WITH SCATTERED SHOWERS EAST OF THE MAIN AREA. THE HEAVIEST THUNDERSTORMS WAS ALONG THE LEADING EDGE FROM JUST SOUTHWEST OF RUSTON DOWN TO JONESBORO..NATCHITOCHES AND LEESVILLE. THE AREA CONTINUES TO MOVE TO THE EAST AND SOUTHEAST AT 20 TO 25 MPH AND WILL SPREAD ACRMOSS NORTHEAST LOUISIANA DURING THE NEXT FEW HOURS.
Special weather statement, Feb 15, 9:42 AM CST, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 940 AM CST SUN FEB 15 1987 RAIN AND THUNDERSTORMS CONTINUE MOVING EASTWARD ACROSS NORTHERN LOUISIANA AND SOUTH ARKANSAS THE SHREVEPORT WEATHER RADAR AT 9:40 AM SHOWED THE AREA OF RAIN AND SCATTERED THUNDERSTORMS FROM NEAR ARKADELPHIA ARKANSAS EXTENDING SOUTHWARD ACROSS ELDORADO...ACROSS THE MONROE AND RUSTON AREAS INTO CENTRAL AND SOUTHERN LOUISIANA. THE HEAVIEST ACTIVITY WAS OCCURRING FROM NEAR ELDORADO SOUTHWARD ACROSS MONROE AND RUSTON TO JUST NORTH OF ALEXANDRIA. MOVEMENT WAS TO THE EAST NEAR 20 MPH. RAIN AND A FEW THUNDERSTORMS WILL CONTINUE MOVING EASTWARD ACROSS NORTHCENTRAL AND NORTHEAST LOUISIANA LATEA THIS MORNING INTO THIS AFTERNOON WITH SOME OF THE THUNDERSTORMS PRODUCING HEAVY RAIN AND GUSTY WINDS.
Nearby
Severe Thunderstorm Warnings in Louisiana, 1987Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive.