Alert archive / Louisiana / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 13, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Jul 7, 1986, 5:05 PM CDT for Saint Charles Parish, Saint John the Baptist Parish, Louisiana. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jul 7, 1986, 5:05 PM CDT (22:05 UTC)
- Expired
- Jul 7, 1986, 6:05 PM CDT
- In force
- 60 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Saint Charles Parish, LA, Saint John the Baptist 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
Boothville, LA (KBVE), launched 12:00Z, 10.1 hours before the alert went out and 124 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
- 2165 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 642 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KNEW 072206
SVRNEW
LAC089-095-072305-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
505 PM CDT MON JUL 7 1986
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 605 PM CDT FOR PEOPLE IN THE FOLLOWING PARISHES:
IN SOUTHEAST LOUISIANA
..ST CHARLES..ST JOHN THE BAPTIST..
RADAR INDICATES AT 5 PM A VERY HEAVY THUNDERSTORM NEAR HAHNVILLE
LOUISIANA. THE THUNDERSTORM IS DRIFTING TOWARD THE NORTHWEST.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH,
DESTRUCTIVE HAIL, DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSI>NESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.Nearby
Severe Thunderstorm Warnings in Louisiana, 1986Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive.