Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 148, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Dec 6, 2021, 12:46 PM CST for Tangipahoa Parish, Washington Parish, Louisiana. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Dec 6, 2021, 12:46 PM CST (18:46 UTC)
- Expired
- Dec 6, 2021, 1:45 PM CST
- In force
- 59 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Tangipahoa Parish, LA, Washington Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 6.8 hours before the alert went out and 93 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
- 720 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 680 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 180 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 5.4
The text
As transmitted.
975 WUUS54 KLIX 061846 SVRLIX LAC105-117-061945- /O.NEW.KLIX.SV.W.0148.211206T1846Z-211206T1945Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service New Orleans LA 1246 PM CST Mon Dec 6 2021 The National Weather Service in New Orleans has issued a * Severe Thunderstorm Warning for... Northern Tangipahoa Parish in southeastern Louisiana... Northwestern Washington Parish in southeastern Louisiana... * Until 145 PM CST. * At 1246 PM CST, a severe thunderstorm was located over Greensburg, moving east at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Amite, Amite City, Kentwood, Independence, Roseland, Mount Herman, Wilmer and Tangipahoa. This includes Interstate 55 in Louisiana between mile markers 41 and 64. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3098 9017 3058 9046 3067 9057 3098 9057 TIME...MOT...LOC 1846Z 280DEG 21KT 3087 9065 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ CAB
2 follow-up statements
184 WWUS54 KLIX 061912 SVSLIX Severe Weather Statement National Weather Service New Orleans LA 112 PM CST Mon Dec 6 2021 LAC105-117-061945- /O.CON.KLIX.SV.W.0148.000000T0000Z-211206T1945Z/ Tangipahoa LA-Washington LA- 112 PM CST Mon Dec 6 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CST FOR NORTHERN TANGIPAHOA AND NORTHWESTERN WASHINGTON PARISHES... At 112 PM CST, a severe thunderstorm was located near Kentwood, or 11 miles north of Amite, moving east at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Amite, Amite City, Kentwood, Roseland, Mount Herman, Wilmer and Tangipahoa. This includes Interstate 55 in Louisiana between mile markers 44 and 64. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3069 9038 3067 9057 3098 9057 3098 9017 TIME...MOT...LOC 1912Z 271DEG 22KT 3089 9045 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ CAB
399
WWUS54 KLIX 061928
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
128 PM CST Mon Dec 6 2021
LAC105-117-061945-
/O.CON.KLIX.SV.W.0148.000000T0000Z-211206T1945Z/
Tangipahoa LA-Washington LA-
128 PM CST Mon Dec 6 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CST
FOR NORTHEASTERN TANGIPAHOA AND NORTHWESTERN WASHINGTON PARISHES...
At 128 PM CST, a severe thunderstorm was located near Wilmer, or 11
miles west of Franklinton, moving east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Wilmer.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3075 9034 3082 9049 3095 9044 3094 9020
3080 9030
TIME...MOT...LOC 1928Z 280DEG 21KT 3087 9034
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CABThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 6, 11:08 AM CST | Special Weather Statement | LIX | East Feliciana | 67 min |
| Dec 6, 12:01 PM CST | Special Weather Statement | LIX | Saint Helena | 74 min |
| Dec 6, 12:21 PM CST | Severe Thunderstorm Warning | LIX | East Feliciana, Saint Helena | 54 min |
| Dec 6, 1:22 PM CST | Tornado Warning | LIX | Tangipahoa, Washington | 68 min |
| Dec 6, 1:29 PM CST | Severe Thunderstorm Warning | LIX | Saint Helena, Tangipahoa, Washington | 61 min |
| Dec 6, 1:40 PM CST | Special Weather Statement | LIX | Saint Helena | 65 min |
| Dec 6, 1:44 PM CST | Severe Thunderstorm Warning | LIX | Livingston, Saint Helena | 61 min |
| Dec 6, 1:54 PM CST | Severe Thunderstorm Warning | LIX | Saint Helena, Tangipahoa | 66 min |
| Dec 6, 2:21 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Washington | 39 min |
| Dec 6, 2:24 PM CST | Tornado Warning | LIX | Washington | 21 min |
| Dec 6, 2:30 PM CST | Severe Thunderstorm Warning | LIX | Livingston, Saint Tammany, Tangipahoa | 60 min |
| Dec 6, 2:35 PM CST | Tornado Warning | LIX | Saint Tammany, Washington | 55 min |
| Dec 6, 2:41 PM CST | Special Marine Warning | LIX | 64 min | |
| Dec 6, 2:51 PM CST | Flash Flood Warning | LIX | Ascension, East Baton Rouge, West Baton Rouge | 116 min |
| Dec 6, 2:51 PM CST | Tornado Warning | LIX | Saint Tammany | 39 min |
| Dec 6, 2:56 PM CST | Tornado Warning | LIX | Saint Tammany | 49 min |
| Dec 6, 3:09 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 66 min |
| Dec 6, 3:20 PM CST | Tornado Warning | LIX | Saint Tammany | 30 min |
| Dec 6, 3:26 PM CST | Special Marine Warning | LIX | 64 min | |
| Dec 6, 4:14 PM CST | Special Marine Warning | LIX | 91 min | |
| Dec 6, 5:24 PM CST | Special Marine Warning | LIX | 66 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2021Every severe thunderstorm warning in 2021
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.