Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 97, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at May 10, 2021, 7:51 AM CDT for Iberville Parish, Pointe Coupee Parish, West Baton Rouge Parish, Louisiana. It was in force for 54 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
- May 10, 2021, 7:51 AM CDT (12:51 UTC)
- Expired
- May 10, 2021, 8:45 AM CDT
- In force
- 54 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Iberville Parish, LA, Pointe Coupee Parish, LA, West Baton Rouge Parish, LA
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.9 hours before the alert went out and 160 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
- 1821 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 536 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 147 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 11.6
The text
As transmitted.
776
WUUS54 KLIX 101251
SVRLIX
LAC047-077-121-101345-
/O.NEW.KLIX.SV.W.0097.210510T1251Z-210510T1345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
751 AM CDT Mon May 10 2021
The National Weather Service in New Orleans has issued a
* Severe Thunderstorm Warning for...
Western West Baton Rouge Parish in southeastern Louisiana...
Southern Pointe Coupee Parish in southeastern Louisiana...
Northwestern Iberville Parish in southeastern Louisiana...
* Until 845 AM CDT.
* At 750 AM CDT, a severe thunderstorm was located over Krotz
Springs, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Livonia, Maringouin, Fordoche, Rosedale, Grosse Tete, Ramah,
Erwinville and Lottie.
This includes Interstate 10 in Louisiana between mile markers 127 and
146.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3066 9174 3068 9134 3066 9134 3065 9131
3030 9135 3036 9165 3038 9163 3044 9164
3050 9171 3050 9175 3051 9173 3056 9176
3061 9176
TIME...MOT...LOC 1250Z 278DEG 28KT 3054 9179
HAIL...0.75IN
WIND...60MPH
$$2 follow-up statements
935
WWUS54 KLIX 101317
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
817 AM CDT Mon May 10 2021
LAC047-077-121-101345-
/O.CON.KLIX.SV.W.0097.000000T0000Z-210510T1345Z/
West Baton Rouge LA-Pointe Coupee LA-Iberville LA-
817 AM CDT Mon May 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR WESTERN WEST BATON ROUGE...SOUTHEASTERN POINTE COUPEE AND
NORTHWESTERN IBERVILLE PARISHES...
At 816 AM CDT, a severe thunderstorm was located over Maringouin, or
12 miles east of Krotz Springs, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Livonia, Maringouin, Rosedale, Grosse Tete, Ramah and Erwinville.
This includes Interstate 10 in Louisiana between mile markers 129 and
146.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3035 9162 3066 9158 3068 9134 3066 9134
3065 9131 3030 9135
TIME...MOT...LOC 1316Z 278DEG 28KT 3051 9155
HAIL...0.75IN
WIND...60MPH
$$691
WWUS54 KLIX 101339
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
839 AM CDT Mon May 10 2021
LAC047-077-121-101348-
/O.EXP.KLIX.SV.W.0097.000000T0000Z-210510T1345Z/
West Baton Rouge LA-Pointe Coupee LA-Iberville LA-
839 AM CDT Mon May 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WEST BATON ROUGE...
SOUTHEASTERN POINTE COUPEE AND NORTHWESTERN IBERVILLE PARISHES WILL
EXPIRE AT 845 AM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. Another severe
thunderstorm warning is in effect on the storm as it moves east.
LAT...LON 3035 9162 3066 9158 3068 9134 3066 9134
3065 9131 3030 9135
TIME...MOT...LOC 1338Z 278DEG 28KT 3049 9139
$$
LNThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 8:48 PM CDT | Flash Flood Watch | LIX | Assumption, East Baton Rouge, East Feliciana, Iberville, Orleans, Pointe Coupee and 9 more | 15 hr |
| May 10, 1:00 AM CDT | Special Weather Statement | LIX | Ascension, Livingston | 60 min |
| May 10, 1:29 AM CDT | Areal Flood Advisory | LIX | Ascension, Assumption, Iberville, Saint James | 70 min |
| May 10, 1:49 AM CDT | Special Weather Statement | LIX | Assumption, Saint James, Saint John the Baptist | 56 min |
| May 10, 1:54 AM CDT | Severe Thunderstorm Warning | LIX | Ascension, Assumption, Saint James | 51 min |
| May 10, 2:01 AM CDT | Special Marine Warning | LIX | 59 min | |
| May 10, 2:43 AM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles | 2 hr |
| May 10, 2:52 AM CDT | Special Marine Warning | LIX | 53 min | |
| May 10, 2:57 AM CDT | Flash Flood Warning | LIX | Jefferson, Orleans, Saint Charles | 9 hr |
| May 10, 3:25 AM CDT | Special Weather Statement | LIX | Orleans | 35 min |
| May 10, 3:37 AM CDT | Special Marine Warning | LIX | 113 min | |
| May 10, 3:41 AM CDT | Tornado Warning | LIX | Orleans, Plaquemines, Saint Bernard | 18 min |
| May 10, 4:20 AM CDT | Flash Flood Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 115 min |
| May 10, 5:26 AM CDT | Special Marine Warning | LIX | 64 min | |
| May 10, 5:29 AM CDT | Special Marine Warning | LIX | 2 hr | |
| May 10, 5:38 AM CDT | Special Weather Statement | LIX | West Baton Rouge | 67 min |
| May 10, 6:04 AM CDT | Special Weather Statement | LIX | East Baton Rouge, West Baton Rouge | 56 min |
| May 10, 6:16 AM CDT | Special Weather Statement | LIX | Saint Charles | 44 min |
| May 10, 6:36 AM CDT | Special Marine Warning | LIX | 54 min | |
| May 10, 7:25 AM CDT | Special Weather Statement | LIX | Saint John the Baptist | 50 min |
| May 10, 7:34 AM CDT | Special Marine Warning | LIX | 56 min | |
| May 10, 8:23 AM CDT | Special Marine Warning | LIX | 67 min | |
| May 10, 8:28 AM CDT | Severe Thunderstorm Warning | LIX | Ascension, East Baton Rouge, Iberville, Livingston, Pointe Coupee, West Baton Rouge | 62 min |
| May 10, 9:16 AM CDT | Severe Thunderstorm Warning | LIX | Ascension, Assumption, East Baton Rouge, Iberville, Livingston, Saint James and 2 more | 44 min |
| May 10, 9:38 AM CDT | Tornado Warning | LIX | Ascension, Livingston, Saint James, Saint John the Baptist | 20 min |
| May 10, 9:57 AM CDT | Special Weather Statement | LIX | Assumption, Orleans, Saint Charles, Saint James, Saint John the Baptist, Saint Tammany | 63 min |
| May 10, 10:29 AM CDT | Special Marine Warning | LIX | 61 min | |
| May 10, 11:08 AM CDT | Special Weather Statement | LIX | Orleans | 52 min |
| May 10, 11:17 AM CDT | Special Marine Warning | LIX | 58 min | |
| May 10, 12:10 PM CDT | Special Marine Warning | LIX | 65 min | |
| May 10, 12:14 PM CDT | Special Marine Warning | LIX | 91 min | |
| May 10, 1:08 PM CDT | Special Marine Warning | LIX | 67 min | |
| May 10, 1:44 PM CDT | Special Marine Warning | LIX | 28 min | |
| May 10, 2:09 PM CDT | Special Marine Warning | LIX | 66 min | |
| May 10, 3:09 PM CDT | Special Marine Warning | LIX | 96 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.