Alert archive / Louisiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 146, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Nov 15, 1987, 9:15 PM CST for Morehouse Parish, Ouachita Parish, Richland Parish, Louisiana. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Nov 15, 1987, 9:15 PM CST (03:15 UTC)
- Expired
- Nov 15, 1987, 10:15 PM CST
- In force
- 60 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Morehouse Parish, LA, Ouachita Parish, LA, Richland 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 00:00Z, 3.3 hours before the alert went out and 174 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
- 314 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 947 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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.
In the hours before
Special weather statement, Nov 15, 4:11 PM CST, 5 hours 4 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.
Local storm report, Nov 15, 8:30 PM CST, 45 minutes before
STORM REPORT NATIONAL WEATHER SERVICE SHREVEPORT LA 825 PM CST SUN NOV 15 1987 PRELIMINARY REPORT ON LONG TRACK TORNADO THAT MOVED ACROSS EAST CENTRAL TEXAS INTO NORTHWEST LOUISIANA. APPARENTLY A MAJOR TORNADO STRIKE WITH DAMAGE AND INJURIES. TORNADO DAMAGE REPORTED FROM NEAR JERICO TEXAS...IN CENTER TEXAS... NEAR JOAQUIN TEXAS...IN KEATCHIE LOUISIANA...LONGSTREET LOUISIANA... STONEWALL LOUISIANA AND THE SOUTHERN PART OF SHREVEPORT. NUMEROUSS TREES AND POWER LINES DOWN...MOBILE HOMES DESTROYED...ROOFS OFF SEVERAL BUILDINGS...HOMES AND BUSINESS DAMAGED OR DESTROYED ALL ALONG THE TRACK.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 15, 6:20 PM CST | Severe Thunderstorm Warning | SHV | Bossier, Caddo, De Soto | 70 min |
| Nov 15, 6:25 PM CST | Tornado Warning | SHV | Bossier, Caddo | 65 min |
| Nov 15, 6:25 PM CST | Tornado Warning | SHV | De Soto | 65 min |
| Nov 15, 7:25 PM CST | Tornado Warning | SHV | Bossier, Caddo, Webster | 65 min |
| Nov 16, 12:20 AM CST | Tornado Warning | SHV | Franklin, Tensas | 70 min |
| Nov 16, 12:30 AM CST | Flash Flood Warning | SHV | Bossier, Caddo, De Soto | 4 hr |
| Nov 16, 1:45 AM CST | Severe Thunderstorm Warning | SHV | Franklin, Tensas | 60 min |
| Nov 16, 3:20 AM CST | Severe Thunderstorm Warning | SHV | Tensas | 55 min |
| Nov 16, 4:15 AM CST | Flash Flood Warning | SHV | Caldwell, Jackson, Winn | 2 hr |
| Nov 16, 5:05 AM CST | Severe Thunderstorm Warning | SHV | Madison | 55 min |
| Nov 16, 9:47 AM CST | Severe Thunderstorm Warning | SHV | Bossier, Webster | 58 min |
| Nov 16, 9:47 AM CST | Severe Thunderstorm Warning | SHV | Caddo | 58 min |
| Nov 16, 10:00 AM CST | Flash Flood Warning | SHV | Caldwell, Franklin, Jackson, Ouachita, Winn | 4 hr |
| Nov 16, 10:00 AM CST | Flash Flood Warning | SHV | De Soto, Sabine | 4 hr |
| Nov 16, 10:00 AM CST | Flash Flood Warning | SHV | Bienville, Bossier, Caddo, Natchitoches, Red River | 4 hr |
| Nov 16, 10:00 AM CST | Flash Flood Warning | SHV | Claiborne, Webster | 4 hr |
| Nov 16, 1:10 PM CST | Severe Thunderstorm Warning | SHV | Franklin, Madison, Tensas | 58 min |
| Nov 16, 4:25 PM CST | Flash Flood Warning | SHV | Caldwell, Ouachita | 4 hr |
| Nov 16, 4:25 PM CST | Flash Flood Warning | SHV | Franklin, Madison, Richland, Tensas | 4 hr |
| Nov 15, 6:25 PM CST | Tornado Warning | SHV | Cass, Marion | 65 min |
| Nov 15, 7:00 PM CST | Tornado Warning | SHV | Bowie | 45 min |
| Nov 15, 7:25 PM CST | Tornado Warning | SHV | Bowie | 65 min |
| Nov 16, 5:05 AM CST | Severe Thunderstorm Warning | SHV | Panola | 55 min |
| Nov 16, 10:00 AM CST | Flash Flood Warning | SHV | Harrison | 4 hr |
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.