Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 166, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Jun 5, 1998, 11:33 PM CDT for Saint Tammany Parish, Louisiana; Hancock County, Harrison County, Mississippi. It was in force for 47 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
- Jun 5, 1998, 11:33 PM CDT (04:33 UTC)
- Expired
- Jun 6, 1998, 12:20 AM CDT
- In force
- 47 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Saint Tammany Parish, LA, Hancock County, MS, Harrison County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 5, 11:35 PM CDT | Thunderstorm Wind | Folsom, LA | Sheriffs office reported scattered areas of tree damage across the north portion of the parish. |
| Jun 5, 11:55 PM CDT | Thunderstorm Wind | Sellers, MS | Several trees and power poles were downed by thunderstorm wind gusts. |
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.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 4.6 hours before the alert went out and 26 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
- 2997 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1030 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
798 WUUS1 KNEW 060431 RRA SVRNEW LAC103-MSC045-047-060520- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 1133 PM CDT FRI JUN 5 1998 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A... * SEVERE THUNDERSTORM WARNING FOR - SOUTHEASTERN ST TAMMANY PARISH SOUTHEASTERN LOUISIANA - HANCOCK COUNTY SOUTHERN MISSISSIPPI - HARRISON COUNTY SOUTHERN MISSISSIPPI * UNTIL 1220 AM CDT * AT 1131 PM CDT... DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS ACROSS NORTHERN HANCOCK AND HARRISON COUNTIES WEST TO MANDEVILLE LOUISIANA. THE LINE WAS MOVING SOUTHEAST AT 45 MILES AN HOUR. ST TAMMANY SHERRIFFS OFFICE REPORTED SEVERAL TREES DOWN ACROSS THE NORTHERN PORTIONS OF THE PARISH DURING THE PAST 30 MINUTES. 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 BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 10:41 PM CDT | Severe Thunderstorm Warning | LIX | Washington | 49 min |
| Jun 5, 11:06 PM CDT | Severe Thunderstorm Warning | LIX | Livingston, Tangipahoa | 34 min |
| Jun 5, 11:06 PM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany | 34 min |
| Jun 5, 11:46 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Orleans | 49 min |
| Jun 5, 11:46 PM CDT | Severe Thunderstorm Warning | LIX | Saint Charles | 49 min |
| Jun 5, 8:44 PM CDT | Severe Thunderstorm Warning | LIX | Wilkinson | 46 min |
| Jun 5, 9:12 PM CDT | Severe Thunderstorm Warning | LIX | Amite | 48 min |
| Jun 5, 9:33 PM CDT | Severe Thunderstorm Warning | LIX | Pike, Walthall | 62 min |
| Jun 5, 10:14 PM CDT | Tornado Warning | LIX | Walthall | 26 min |
| Jun 5, 11:20 PM CDT | Tornado Warning | LIX | Pearl River | 15 min |
| Jun 5, 11:56 PM CDT | Severe Thunderstorm Warning | LIX | Jackson | 49 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1998Severe Thunderstorm Warnings in Louisiana, 1998Every severe thunderstorm warning in 1998
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.