Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 78, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Apr 23, 2021, 11:46 PM CDT for Saint Tammany Parish, Tangipahoa Parish, Washington Parish, Louisiana; Walthall County, Mississippi. It was in force for 44 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 23, 2021, 11:46 PM CDT (04:46 UTC)
- Expired
- Apr 24, 2021, 12:30 AM CDT
- In force
- 44 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, Walthall County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 24, 12:35 AM CDT | TSTM WND GST 64 | Bogalusa, LA | BOGALUSA ASOS...BXA...MEASURED A WIND GUST OF 56KTS/64MPH AT 0535Z. |
| Apr 24, 12:35 AM CDT | TSTM WND GST 64 | Bogalusa, LA | BOGALUSA AWOS...BXA...MEASURED A WIND GUST OF 56KTS/64MPH AT 0535Z. |
| Apr 24, 12:40 AM CDT | TSTM WND DMG | 3 Nne Bogalusa, LA | PUBLIC REPORTED LARGE TREE UPROOTED WITH NUMEROUS OTHER BRANCHES DOWN, ALONG WITH A POWER LINE. TIME ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 23, 8:30 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 4.8 hours before the alert went out and 73 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
- 873 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 263 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
464
WUUS54 KLIX 240446
SVRLIX
LAC103-105-117-MSC147-240530-
/O.NEW.KLIX.SV.W.0078.210424T0446Z-210424T0530Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
1146 PM CDT Fri Apr 23 2021
The National Weather Service in New Orleans has issued a
* Severe Thunderstorm Warning for...
Northwestern St. Tammany Parish in southeastern Louisiana...
Central Tangipahoa Parish in southeastern Louisiana...
Washington Parish in southeastern Louisiana...
Southeastern Walthall County in southern Mississippi...
* Until 1230 AM CDT.
* At 1146 PM CDT, a severe thunderstorm was located 7 miles east of
Amite, moving northeast at 50 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
Bogalusa, Franklinton, Amite, Amite City, Independence, Varnado,
Roseland, Enon, Wilmer, Tickfaw and Angie.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 400 AM CDT for southeastern
Louisiana...and southern Mississippi.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3100 8983 3100 8973 3097 8973 3094 8976
3092 8975 3088 8978 3086 8977 3084 8979
3082 8978 3082 8980 3077 8983 3058 9048
3074 9052 3086 9046 3105 8984
TIME...MOT...LOC 0446Z 247DEG 44KT 3070 9039
TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
$$The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 9:28 PM CDT | Severe Thunderstorm Warning | LIX | Tangipahoa, Washington | 47 min |
| Apr 23, 10:12 PM CDT | Special Weather Statement | LIX | East Baton Rouge, West Baton Rouge | 33 min |
| Apr 23, 10:34 PM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge, Livingston, West Baton Rouge | 26 min |
| Apr 23, 10:47 PM CDT | Tornado Warning | LIX | East Baton Rouge, Livingston, West Baton Rouge | 28 min |
| Apr 23, 11:14 PM CDT | Severe Thunderstorm Warning | LIX | Livingston, Saint Helena, Tangipahoa | 31 min |
| Apr 24, 12:28 AM CDT | Severe Thunderstorm Warning | LIX | Washington | 47 min |
| Apr 24, 12:56 AM CDT | Special Weather Statement | LIX | East Baton Rouge, East Feliciana, Pointe Coupee, West Baton Rouge, West Feliciana | 64 min |
| Apr 24, 1:36 AM CDT | Special Weather Statement | LIX | Livingston | 24 min |
| Apr 24, 1:43 AM CDT | Special Weather Statement | LIX | Washington | 32 min |
| Apr 24, 1:50 AM CDT | Severe Thunderstorm Warning | LIX | Ascension, East Baton Rouge, Iberville, Livingston, Saint Helena, Tangipahoa | 25 min |
| Apr 24, 2:17 AM CDT | Special Weather Statement | LIX | Ascension, Livingston, Tangipahoa, Washington | 43 min |
| Apr 24, 3:00 AM CDT | Special Weather Statement | LIX | Assumption, Saint James, Saint John the Baptist, Saint Tammany | 60 min |
| Apr 24, 3:02 AM CDT | Special Marine Warning | LIX | 58 min | |
| Apr 24, 3:21 AM CDT | Special Weather Statement | LIX | Ascension, East Baton Rouge, Livingston, Saint John the Baptist, Tangipahoa | 39 min |
| Apr 24, 3:30 AM CDT | Severe Thunderstorm Warning | LIX | Ascension, Livingston, Saint James, Saint John the Baptist, Tangipahoa | 30 min |
| Apr 24, 3:55 AM CDT | Special Marine Warning | LIX | 65 min | |
| Apr 24, 3:59 AM CDT | Special Weather Statement | LIX | Orleans, Saint Charles | 61 min |
| Apr 24, 4:06 AM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany | 24 min |
| Apr 24, 5:36 AM CDT | Special Weather Statement | LIX | Saint Tammany | 39 min |
| Apr 24, 9:44 AM CDT | River Flood Warning | LIX | Tangipahoa | 3 days |
| Apr 24, 9:46 AM CDT | River Flood Warning | LIX | Saint Tammany | 48 hr |
| Apr 24, 11:12 AM CDT | River Flood Warning | LIX | Saint Tammany | 21 days |
| Apr 24, 11:12 AM CDT | River Flood Warning | LIX | Washington | 72 hr |
| Apr 23, 8:17 PM CDT | Special Weather Statement | LIX | Pike, Walthall | 28 min |
| Apr 23, 8:47 PM CDT | Special Weather Statement | LIX | Wilkinson | 28 min |
| Apr 23, 9:20 PM CDT | River Flood Warning | LIX | Pike, Walthall | 70 hr |
| Apr 23, 10:02 PM CDT | Severe Thunderstorm Warning | LIX | Walthall | 13 min |
| Apr 24, 1:16 AM CDT | Special Weather Statement | LIX | Amite, Pike | 59 min |
| Apr 24, 1:26 AM CDT | Severe Thunderstorm Warning | LIX | Amite, Pike, Walthall, Wilkinson | 49 min |
| Apr 24, 1:41 AM CDT | Special Weather Statement | LIX | Pearl River | 34 min |
| Apr 24, 2:35 AM CDT | Special Weather Statement | LIX | Amite, Pike | 40 min |
| Apr 24, 3:42 AM CDT | Severe Thunderstorm Warning | LIX | Pearl River | 18 min |
| Apr 24, 4:30 AM CDT | Special Weather Statement | LIX | Hancock, Harrison | 75 min |
| Apr 24, 4:53 AM CDT | Severe Thunderstorm Warning | LIX | Jackson | 52 min |
| Apr 24, 11:13 AM CDT | River Flood Warning | LIX | Pearl River | 46 hr |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2021Severe Thunderstorm Warnings in Mississippi, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.