Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 241, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Nov 10, 1998, 1:59 PM CST for Lafourche Parish, Terrebonne Parish, Louisiana. It was in force for 46 min. 1 report 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 10, 1998, 1:59 PM CST (19:59 UTC)
- Expired
- Nov 10, 1998, 2:45 PM CST
- In force
- 46 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Lafourche Parish, LA, Terrebonne Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 10, 2:30 PM CST | Thunderstorm Wind | Bourg, LA | Thunderstorm wind gusts blew down two large trees. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 10, 11:15 AM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.0 hours before the alert went out and 128 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
- 967 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 540 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 344 m²/s²
- 0-3 km storm-relative helicity
- 471 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 8.0
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 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 10, 10:20 AM CST, 3 hours 39 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-111600- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1020 AM CST TUE NOV 10 1998 STRONG COLD FRONT MOVING ACROSS THE LOCAL REGION WILL PRODUCE THUNDERSTORMS. SOME OF THESE THUNDERSTORMS WILL BE SEVERE IN SOUTHEAST LOUISIANA AND SOUTHWEST MISSISSIPPI THROUGH THIS AFTERNOON WITH FREQUENT LIGHTNINGS...POTENTIAL DAMAGING WINDS AND SMALL HAIL. THE STORM WILL CONTINUE TO MOVE EAST AND AFFECT COASTAL MISSISSIPPI THROUGH THE EVENING HOURS. THE ATMOSPHERIC CONDITIONS OVER THE REGION WILL STABILIZE BY LATE TONIGHT AS THE COLD FRONT IS EXPECTED TO MOVE OUT FROM THE LOCAL AREAS. OUR WEB SITE PROVIDES MORE WEATHER INFORMATION AT: HTTP://WWW.SRH.NOAA.GOV/LIX (ALL LOWER CASE)
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 10, 10:29 AM CST | Severe Thunderstorm Warning | LIX | East Feliciana, Saint Helena | 46 min |
| Nov 10, 11:03 AM CST | Severe Thunderstorm Warning | LIX | Tangipahoa | 47 min |
| Nov 10, 11:18 AM CST | Severe Thunderstorm Warning | LIX | Iberville | 47 min |
| Nov 10, 11:24 AM CST | Severe Thunderstorm Warning | LIX | Washington | 46 min |
| Nov 10, 11:39 AM CST | Tornado Warning | LIX | Washington | 31 min |
| Nov 10, 12:00 PM CST | Severe Thunderstorm Warning | LIX | Tangipahoa | 35 min |
| Nov 10, 12:14 PM CST | Tornado Warning | LIX | Washington | 36 min |
| Nov 10, 1:07 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Tangipahoa | 63 min |
| Nov 10, 2:07 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 48 min |
| Nov 10, 3:12 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 48 min |
| Nov 10, 3:27 PM CST | Severe Thunderstorm Warning | LIX | Plaquemines, Saint Bernard | 33 min |
| Nov 10, 12:42 PM CST | Tornado Warning | LIX | Pearl River | 48 min |
| Nov 10, 1:37 PM CST | Severe Thunderstorm Warning | LIX | Pearl River | 33 min |
Nearby
Severe 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.