Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 50, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 16, 2021, 5:11 AM CDT for 6 parishes in Louisiana. It was in force for 64 min. 1 report 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 16, 2021, 5:11 AM CDT (10:11 UTC)
- Expired
- Apr 16, 2021, 6:15 AM CDT
- In force
- 64 min
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Iberia Parish, LA, Lafayette Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 16, 5:15 AM CDT | HAIL 1 | Maurice, LA | NICKEL TO QUARTER SIZE HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 10.2 hours before the alert went out and 165 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
- 869 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
649
WUUS54 KLCH 161011
SVRLCH
LAC045-055-097-099-101-113-161115-
/O.NEW.KLCH.SV.W.0050.210416T1011Z-210416T1115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
511 AM CDT Fri Apr 16 2021
The National Weather Service in Lake Charles has issued a
* Severe Thunderstorm Warning for...
Iberia Parish in south central Louisiana...
Lafayette Parish in south central Louisiana...
Northern St. Mary Parish in south central Louisiana...
Northeastern Vermilion Parish in southwestern Louisiana...
St. Martin Parish in south central Louisiana...
Southeastern St. Landry Parish in central Louisiana...
* Until 615 AM CDT.
* At 511 AM CDT, severe thunderstorms were located along a line
extending from near Carencro to near Maurice, moving east at 55
mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Lafayette, New Iberia, Morgan City, Abbeville, Catahoula, Scott,
Breaux Bridge, Franklin, Carencro, St. Martinville, Patterson,
Jeanerette, Berwick, Arnaudville, Bayou Vista, Stephensville, Avery
Island, Broussard, Youngsville and Sunset.
This includes the following highways...
Interstate 10 in Louisiana between mile markers 95 and 126.
Interstate 49 between mile markers 1 and 12.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 2961 9112 2994 9221 3044 9212 3040 9163
3036 9165 3026 9159 3023 9147 3020 9149
3011 9147 3010 9139 3006 9137 3006 9127
3003 9124 3004 9122 3000 9126 2996 9125
2986 9120 2980 9109 2964 9111 2963 9108
TIME...MOT...LOC 1011Z 284DEG 46KT 3032 9207 3006 9212
HAIL...0.88IN
WIND...60MPH
$$
Stigger/873 follow-up statements
471
WWUS54 KLCH 161027
SVSLCH
Severe Weather Statement
National Weather Service Lake Charles LA
527 AM CDT Fri Apr 16 2021
LAC055-097-113-161037-
/O.CAN.KLCH.SV.W.0050.000000T0000Z-210416T1115Z/
Lafayette LA-Vermilion LA-St. Landry LA-
527 AM CDT Fri Apr 16 2021
...THE SEVERE THUNDERSTORM WARNING FOR LAFAYETTE...NORTHEASTERN
VERMILION AND SOUTHEASTERN ST. LANDRY PARISHES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 2963 9108 2961 9112 2987 9198 2998 9199
3015 9191 3019 9193 3040 9193 3040 9163
3036 9165 3026 9159 3023 9147 3020 9149
3010 9146 3010 9139 3006 9137 3004 9122
2998 9126 2986 9120 2980 9109 2964 9111
TIME...MOT...LOC 1027Z 280DEG 45KT 3025 9180 2999 9185
$$
LAC045-099-101-161115-
/O.CON.KLCH.SV.W.0050.000000T0000Z-210416T1115Z/
Iberia LA-St. Mary LA-St. Martin LA-
527 AM CDT Fri Apr 16 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT
FOR IBERIA...NORTHERN ST. MARY AND ST. MARTIN PARISHES...
At 527 AM CDT, severe thunderstorms were located along a line
extending from near Henderson to near New Iberia, moving east at 50
mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
New Iberia, Morgan City, Catahoula, Breaux Bridge, Franklin, St.
Martinville, Patterson, Jeanerette, Berwick, Arnaudville, Bayou
Vista, Stephensville, Avery Island, Broussard, Baldwin, Delcambre,
Henderson, Loreauville, Patterson Memorial Airport and Butte La Rose.
This includes Interstate 10 in Louisiana between mile markers 109 and
126.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 2963 9108 2961 9112 2987 9198 2998 9199
3015 9191 3019 9193 3040 9193 3040 9163
3036 9165 3026 9159 3023 9147 3020 9149
3010 9146 3010 9139 3006 9137 3004 9122
2998 9126 2986 9120 2980 9109 2964 9111
TIME...MOT...LOC 1027Z 280DEG 45KT 3025 9180 2999 9185
HAIL...0.88IN
WIND...60MPH
$$
Stigger/87685
WWUS54 KLCH 161041
SVSLCH
Severe Weather Statement
National Weather Service Lake Charles LA
541 AM CDT Fri Apr 16 2021
LAC045-099-101-161115-
/O.CON.KLCH.SV.W.0050.000000T0000Z-210416T1115Z/
Iberia LA-St. Mary LA-St. Martin LA-
541 AM CDT Fri Apr 16 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT
FOR NORTHEASTERN IBERIA...NORTHERN ST. MARY AND ST. MARTIN
PARISHES...
At 540 AM CDT, severe thunderstorms were located along a line
extending from near Catahoula to near Jeanerette, moving east at 50
mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
New Iberia, Morgan City, Catahoula, Franklin, Patterson, Jeanerette,
Berwick, Bayou Vista, Stephensville, Baldwin, Loreauville, Patterson
Memorial Airport, Butte La Rose, Glencoe, Lydia, Sorrel, Atchafalaya
Welcome Center, Lake Fausse Pointe, Charenton and Amelia.
This includes Interstate 10 in Louisiana between mile markers 120 and
126.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 2972 9149 2982 9181 3040 9176 3039 9163
3036 9165 3026 9159 3023 9147 3020 9149
3010 9146 3010 9139 3006 9137 3004 9122
2998 9126 2986 9120 2980 9109 2964 9111
2963 9108 2961 9112
TIME...MOT...LOC 1040Z 269DEG 43KT 3022 9165 2996 9170
HAIL...0.88IN
WIND...60MPH
$$
Stigger/87492
WWUS54 KLCH 161109
SVSLCH
Severe Weather Statement
National Weather Service Lake Charles LA
609 AM CDT Fri Apr 16 2021
LAC045-099-101-161118-
/O.EXP.KLCH.SV.W.0050.000000T0000Z-210416T1115Z/
Iberia LA-St. Mary LA-St. Martin LA-
609 AM CDT Fri Apr 16 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN IBERIA...NORTHERN
ST. MARY AND ST. MARTIN PARISHES WILL EXPIRE AT 615 AM CDT...
The storms which prompted the warning have weakened and moved out of
the warned area. Therefore, the warning will be allowed to expire.
LAT...LON 2972 9149 2982 9181 3040 9176 3039 9163
3036 9165 3026 9159 3023 9147 3020 9149
3010 9146 3010 9139 3006 9137 3004 9122
2998 9126 2986 9120 2980 9109 2964 9111
2963 9108 2961 9112
TIME...MOT...LOC 1108Z 284DEG 46KT 3013 9126 2987 9131
$$
Stigger/87The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 11:57 PM CDT | Severe Thunderstorm Warning | LCH | Beauregard | 48 min |
| Apr 16, 3:06 AM CDT | Special Weather Statement | LCH | Evangeline | 24 min |
| Apr 16, 3:11 AM CDT | Severe Thunderstorm Warning | LCH | Beauregard, Calcasieu | 34 min |
| Apr 16, 3:30 AM CDT | Special Weather Statement | LCH | Evangeline | 45 min |
| Apr 16, 3:44 AM CDT | Severe Thunderstorm Warning | LCH | Allen, Beauregard, Calcasieu, Jefferson Davis | 31 min |
| Apr 16, 4:12 AM CDT | Severe Thunderstorm Warning | LCH | Acadia, Allen, Evangeline, Jefferson Davis | 33 min |
| Apr 16, 4:13 AM CDT | Special Weather Statement | LCH | Saint Landry | 47 min |
| Apr 16, 4:33 AM CDT | Severe Thunderstorm Warning | LCH | Acadia, Jefferson Davis, Lafayette, Saint Landry, Vermilion | 42 min |
| Apr 16, 10:34 AM CDT | River Flood Warning | LCH | Lafayette, Saint Landry, Saint Martin | 57 hr |
| Apr 16, 4:22 PM CDT | Small Craft Advisory | LCH | 35 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.