Alert archive / Louisiana / Tornado Warnings in 1986
Tornado Warning 3, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Nov 20, 1986, 5:06 AM CST for East Baton Rouge Parish, East Feliciana Parish, Saint Helena Parish, Louisiana. It was in force for 54 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 20, 1986, 5:06 AM CST (11:06 UTC)
- Expired
- Nov 20, 1986, 6:00 AM CST
- In force
- 54 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties East Baton Rouge Parish, LA, East Feliciana Parish, LA, Saint Helena 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 20, 5:10 AM CST | Thunderstorm Wind 0 | East Baton Rouge, LA | |
| Nov 20, 5:20 AM CST | Thunderstorm Wind 0 | East Baton Rouge, 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
Jackson, MS (KJAN), launched 00:00Z, 11.1 hours before the alert went out and 195 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
- 839 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, Nov 20, 2:16 AM CST, 2 hours 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 216 AM CST THU NOV 20 1986 ...STRONG THUNDERSTORMS WERE MOVING ACROSS PORTIONS OF EAST CENTRAL LOUISIANA... WEATHER RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM WOODVILLE MISSISSIPPI...SOUTHWEST ACROSS SIMMESPORT AND VILLE PLATTE TO NEAR KINDER. THE LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 20 MPH. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...HEAVY RAIN... WITH FLOODING OF STREETS AND OTHER LOW LYING AREAS...DANGEROUS LIGHTNING AND POSSIBLY SOME SMALL HAIL AS THEY MOVE ACROSS AVOYELLES ...ST LANDRY...POINTE COUPEE AND WEST FELICIANA PARISHES DURING THE NEXT ONE TO TWO HOURS.
Special weather statement, Nov 20, 3:59 AM CST, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 1000 AM CST THU NOV 20 1986 ...COLD FRONT MOVING THROUGH METROPOLITAN BATON ROUGE... WEATHER RADARS SHOWED A LINE OF STRONG THUNDERSTORMS ABOUT 20 MILES WIDE FROM BOGALUSA TO BATON ROUGE TO LAFAYETTE. THE THUNDERSTORMS WERE ASSOCIATED WITH A COLD FRONT JUST NORTH OF BATON ROUGE PUSHING SOUTHEAST NEAR 20 MILES AN HOUR. THE COLD FRONT SHOULD MOVE THROUGH BATON ROUGE DURING THE HOUR. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...HEAVY RAIN... WITH FLOODING OF STREETS AND OTHER LOW LYING AREAS AND DANGEROUS LIGHTNING AS THEY MOVE METROPOLITAN BATON ROUGE.
Special weather statement, Nov 20, 4:15 AM CST, 51 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 416 AM CST THU NOV 20 1986 ...STRONG THUNDERSTORMS WERE MOVING ACROSS PORTIONS OF EAST CENTRAL LOUISIANA... WEATHER RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM MCCOMB MISSISSIPPI...SOUTHWEST ACROSS CLINTON AND PORT BARRE TO NEAR RAYNE. THE LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 20 MPH. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...HEAVY RAIN... WITH FLOODING OF STREETS AND OTHER LOW LYING AREAS...DANGEROUS LIGHTNING AND POSSIBLY SOME SMALL HAIL AS THEY MOVE ACROSS ST LANDRY ...POINTE COUPEE...WEST FELICIANA...EAST FELICIANA...ST HELENA... EAST BATON ROUGE AND WEST BATON ROUGE PARISHES DURING THE NEXT ONbE TO TWO HOURS.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 20, 5:06 AM CST | Tornado Warning | LIX | Pointe Coupee, West Feliciana | 54 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.