Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 74, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Apr 23, 2021, 9:28 PM CDT for Tangipahoa Parish, Washington Parish, Louisiana; Pike County, Walthall County, Mississippi. It was in force for 47 min. 2 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, 9:28 PM CDT (02:28 UTC)
- Expired
- Apr 23, 2021, 10:15 PM CDT
- In force
- 47 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Tangipahoa Parish, LA, Washington Parish, LA, Pike County, MS, Walthall County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 23, 9:35 PM CDT | HAIL 0.7 | Kentwood, LA | |
| Apr 23, 10:08 PM CDT | HAIL 1.75 | 2 Ese Tylertown, MS |
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, 2.5 hours before the alert went out and 100 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.
417 WUUS54 KLIX 240228 SVRLIX LAC105-117-MSC113-147-240315- /O.NEW.KLIX.SV.W.0074.210424T0228Z-210424T0315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service New Orleans LA 928 PM CDT Fri Apr 23 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... Western Walthall County in southern Mississippi... Southeastern Pike County in southern Mississippi... * Until 1015 PM CDT. * At 927 PM CDT, a severe thunderstorm was located over Kentwood, or 10 miles northeast of Greensburg, moving northeast at 55 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Kentwood, Tylertown, Osyka, Salem, Mount Herman and Tangipahoa. This includes Interstate 55 in Louisiana between mile markers 52 and 66. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 400 AM CDT for southeastern Louisiana...and southern Mississippi. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3079 9055 3097 9056 3130 9006 3093 9005 TIME...MOT...LOC 0227Z 241DEG 49KT 3091 9052 HAIL...1.00IN WIND...<50MPH $$
2 follow-up statements
814
WWUS54 KLIX 240246
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
946 PM CDT Fri Apr 23 2021
LAC105-240255-
/O.CAN.KLIX.SV.W.0074.000000T0000Z-210424T0315Z/
Tangipahoa LA-
946 PM CDT Fri Apr 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN TANGIPAHOA PARISH IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 400 AM CDT for southeastern
Louisiana...and southern Mississippi.
LAT...LON 3130 9006 3093 9005 3086 9031 3086 9032
3089 9032 3091 9034 3100 9035 3100 9051
TIME...MOT...LOC 0245Z 241DEG 49KT 3103 9026
$$
LAC117-MSC113-147-240315-
/O.CON.KLIX.SV.W.0074.000000T0000Z-210424T0315Z/
Washington LA-Walthall MS-Pike MS-
946 PM CDT Fri Apr 23 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR NORTHWESTERN WASHINGTON PARISH...WESTERN WALTHALL AND
SOUTHEASTERN PIKE COUNTIES...
At 945 PM CDT, a severe thunderstorm was located near Mount Herman,
or 14 miles northwest of Franklinton, moving northeast at 55 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Tylertown, Osyka, Salem and Mount Herman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 400 AM CDT for southeastern
Louisiana...and southern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3130 9006 3093 9005 3086 9031 3086 9032
3089 9032 3091 9034 3100 9035 3100 9051
TIME...MOT...LOC 0245Z 241DEG 49KT 3103 9026
HAIL...1.00IN
WIND...<50MPH
$$049
WWUS54 KLIX 240301
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
1001 PM CDT Fri Apr 23 2021
LAC117-MSC113-240311-
/O.CAN.KLIX.SV.W.0074.000000T0000Z-210424T0315Z/
Washington LA-Pike MS-
1001 PM CDT Fri Apr 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WASHINGTON PARISH
IN SOUTHEASTERN LOUISIANA AND SOUTHEASTERN PIKE COUNTIES IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 400 AM CDT for southeastern
Louisiana...and southern Mississippi.
LAT...LON 3130 9006 3100 9005 3100 9026 3117 9026
TIME...MOT...LOC 0301Z 241DEG 49KT 3114 9004
$$
MSC147-240315-
/O.CON.KLIX.SV.W.0074.000000T0000Z-210424T0315Z/
Walthall MS-
1001 PM CDT Fri Apr 23 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR WESTERN WALTHALL COUNTY...
At 1001 PM CDT, a severe thunderstorm was located near Kokomo, moving
northeast at 55 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Tylertown and Salem.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 400 AM CDT for southeastern
Louisiana...and southern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3130 9006 3100 9005 3100 9026 3117 9026
TIME...MOT...LOC 0301Z 241DEG 49KT 3114 9004
HAIL...1.00IN
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, 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 23, 11:46 PM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany, Tangipahoa, Washington | 44 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.