Alert archive / Louisiana / Areal Flood Warnings in 2017
Areal Flood Warning 9, NWS Lake Charles, LA
NWS Lake Charles, LA issued this areal flood warning at May 3, 2017, 11:16 PM CDT for 12 parishes in Louisiana; Jasper County, Newton County, Texas. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 3, 2017, 11:16 PM CDT (04:16 UTC)
- Expired
- May 4, 2017, 5:15 PM CDT
- In force
- 18 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Acadia Parish, LA, Allen Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Evangeline Parish, LA, Iberia Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA, Jasper County, TX, Newton County, TX
The radar
The Lake Charles radar (KLCH), 64 km from the middle of the area, began a volume at 04:19 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 4.3 hours before the alert went out and 62 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
- 1128 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 459 m²/s²
- 0-3 km storm-relative helicity
- 554 m²/s²
- Significant tornado parameter
- 4.2
- Supercell composite
- 25.7
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Lake Charles, LA wrote its last area forecast discussion before this areal flood warning went out at May 3, 9:46 PM CDT, 1 hour 30 minutes earlier.
Area forecast discussion, May 3, 9:46 PM CDT, 1 hour 30 minutes before
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</html>Hazardous weather outlook, May 3, 5:15 AM CDT, 18 hours 1 minute before
Hazardous Weather Outlook National Weather Service Lake Charles LA 515 AM CDT Wed May 3 2017 LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262- 041100- Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry- Calcasieu-Jefferson Davis-Acadia-Lafayette-Upper St. Martin- Vermilion-Iberia-St. Mary-Lower St. Martin-West Cameron- East Cameron-Tyler-Hardin-Jefferson-Orange-Northern Jasper- Northern Newton-Southern Jasper-Southern Newton- 515 AM CDT Wed May 3 2017 This Hazardous Weather Outlook is for portions of central Louisiana, south central Louisiana, southwest Louisiana, west central Louisiana, and southeast Texas. .DAY ONE...Today and Tonight Rapid changes with deteriorating weather conditions expected today. The Storm Prediction Center has entire area with an Enhanced Risk of severe thunderstorms, with large hail possible and damaging winds the primary severe weather threat. Moderate risk of excessive rainfall today with rain amounts of 3 to 6 inches are expected across Southern Louisiana, with isolated amounts exceeding 8 inches possible. Elsewhere slight risk of excessive rainfall with rain amounts of 2 to 3 inches are expected with isolated amounts exceeding 5 inches possible across Southeast Texas and Central Louisiana. Elevated south to southeasterly winds will lead to elevated tides of 1.5 to 2.0 feet above predicted levels this afternoon and evening. This will result in tidal levels between 3.3 - 3.8 feet MLLW later this afternoon and evening along coastal Southern Louisiana and Southeast Texas. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Precipitation expected to end once the cold front passes, with cooler than normal temperatures expected though Saturday. A warming trend with no precipitation is expected Sunday through Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation likely needed later this morning through the evening hours. GMZ430-432-435-450-452-455-470-472-475-041100- Sabine Lake-Calcasieu Lake-Vermilion Bay- Coastal waters from Cameron LA to High Island TX out 20 NM- Coastal waters from Intracoastal City to Cameron LA out 20 NM- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- Waters from Cameron LA to High Island TX from 20 to 60 NM- Waters from Intracoastal City to Cameron LA from 20 to 60 NM- Waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 515 AM CDT Wed May 3 2017 This Hazardous Weather Outlook is for portions of Gulf of Mexico. .DAY ONE...Today and Tonight South to southeasterly winds will continue strengthening today ahead of the next cold front this evening and early Thursday morning. Moderate to strong offshore flow is expected behind the cold front. Small craft advisories are in effect for all marine zones. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Moderate to strong offshore flow will continue behind the cold front on Thursday, subsiding on Friday. Small craft advisories will continue into Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation likely needed later this morning through the evening hours.
In the hours before
Special weather statement, May 3, 8:51 PM CDT, 2 hours 25 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
851 PM CDT WED MAY 3 2017
LAZ030>033-041>045-052-073-074-TXZ201-215-216-261-262-040245-
West Cameron LA-Lafayette LA-St. Landry LA-Evangeline LA-Allen LA-
Calcasieu LA-Acadia LA-Jefferson Davis LA-Vermilion LA-
Upper St. Martin LA-Beauregard LA-East Cameron LA-Jefferson TX-
Hardin TX-Southern Newton TX-Orange TX-Southern Jasper TX-
851 PM CDT WED MAY 3 2017
...SPECIAL WEATHER STATEMENT...
At 850 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Chataignier to 6 miles south of Nome.
Movement was southeast at 35 mph.
Winds in excess of 30 mph will be possible with these storms.
Locations impacted include...
Lafayette, Beaumont, Lake Charles, Port Arthur, Sulphur, Orange,
Nederland, Opelousas, Groves, Crowley, Port Neches, Abbeville,
Lumberton, Vidor, Catahoula, Eunice, Jennings, Scott, Breaux Bridge
and Rayne.
A severe thunderstorm watch remains in effect until midnight CDT for
central and southwestern Louisiana...and southeastern Texas.
LAT...LON 3022 9463 3081 9238 3014 9162 3007 9195
3003 9197 2971 9297 2980 9334 2976 9335
2975 9368 2969 9384 2980 9391 2985 9379
3000 9379 2999 9386 2968 9397 2961 9431
2990 9434 2992 9444 3011 9445 3011 9456
TIME...MOT...LOC 0150Z 316DEG 29KT 3060 9233 2994 9439
06Special weather statement, May 3, 8:59 PM CDT, 2 hours 17 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
859 PM CDT WED MAY 3 2017
LAZ045-053>055-040245-
Lower St. Martin LA-Iberia LA-Upper St. Martin LA-St. Mary LA-
859 PM CDT WED MAY 3 2017
...SIGNIFICANT WEATHER ADVISORY FOR IBERIA...ST. MARY AND SOUTHERN
ST. MARTIN PARISHES UNTIL 945 PM CDT...
At 858 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Cypremort Point to 22 miles south of
Amelia. Movement was northeast at 40 mph.
Winds in excess of 40 mph will be possible with these storms.
Locations impacted include...
New Iberia, Morgan City, Franklin, Patterson, Jeanerette, Berwick,
Bayou Vista, Stephensville, Belle River, Baldwin, Loreauville,
Ellerslie, Patterson Memorial Airport, Glencoe, Lydia, Sorrel,
Amelia, Lake Fausse Pointe, Charenton and Pierre Part.
LAT...LON 2955 9128 2949 9128 2957 9142 2963 9140
2958 9143 2970 9163 2975 9160 2975 9161
2976 9163 2987 9191 3008 9184 3013 9161
3031 9162 3023 9147 3010 9146 3004 9122
2992 9123 2980 9109 2963 9108
TIME...MOT...LOC 0158Z 216DEG 35KT 2981 9186 2934 9108
06Special weather statement, May 3, 9:24 PM CDT, 1 hour 52 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
924 PM CDT WED MAY 3 2017
LAZ045-040315-
Upper St. Martin LA-
924 PM CDT WED MAY 3 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ST. MARTIN PARISH
UNTIL 1015 PM CDT...
At 924 PM CDT, Doppler radar was tracking a strong thunderstorm near
Henderson, or near Catahoula, moving southeast at 20 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
Breaux Bridge, Henderson, Butte La Rose and Lake Pelba.
LAT...LON 3014 9160 3013 9161 3035 9186 3038 9179
3039 9173 3039 9170 3034 9163 3030 9162
3022 9161 3017 9161
TIME...MOT...LOC 0224Z 295DEG 16KT 3029 9175
06Local storm report, May 3, 10:51 PM CDT, 25 minutes before
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</html>Local storm report, May 3, 10:55 PM CDT, 21 minutes before
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</html>Local storm report, May 3, 10:56 PM CDT, 20 minutes before
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</html>The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 7:06 PM CDT | Severe Thunderstorm Warning | LCH | Avoyelles, Rapides, Vernon | 32 min |
| May 3, 7:16 PM CDT | Severe Thunderstorm Warning | LCH | Saint Martin, St. Mary | 18 min |
| May 3, 7:26 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Beauregard | 37 min |
| May 3, 7:32 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Evangeline, Rapides | 30 min |
| May 3, 7:57 PM CDT | Special Weather Statement | LCH | Acadia, Evangeline | 48 min |
| May 3, 8:09 PM CDT | Special Weather Statement | LCH | Jefferson Davis | 66 min |
| May 3, 8:13 PM CDT | Severe Thunderstorm Warning | LCH | Beauregard | 32 min |
| May 3, 8:35 PM CDT | River Flood Warning | LCH | Lafayette, Saint Landry, Saint Martin | 63 hr |
| May 3, 8:40 PM CDT | Special Weather Statement | LCH | Saint Landry | 50 min |
| May 3, 8:49 PM CDT | Special Marine Warning | LCH | 86 min | |
| May 3, 8:51 PM CDT | Special Weather Statement | LCH | Acadia, Allen, Calcasieu, Cameron, Evangeline, Jefferson Davis and 1 more | 54 min |
| May 3, 8:59 PM CDT | Special Weather Statement | LCH | Saint Martin, St. Mary | 46 min |
| May 3, 9:17 PM CDT | River Flood Warning | LCH | Rapides | 8 days |
| May 3, 9:17 PM CDT | River Flood Warning | LCH | Allen | 5 days |
| May 3, 9:17 PM CDT | River Flood Warning | LCH | Allen, Jefferson Davis | 6 days |
| May 3, 9:17 PM CDT | River Flood Warning | LCH | Beauregard | 4 days |
| May 3, 9:17 PM CDT | River Flood Warning | LCH | Allen | 5 days |
| May 3, 9:24 PM CDT | Special Weather Statement | LCH | Saint Martin | 51 min |
| May 3, 9:34 PM CDT | Special Marine Warning | LCH | 116 min | |
| May 3, 11:36 PM CDT | Special Marine Warning | LCH | 114 min | |
| May 4, 1:30 AM CDT | Special Marine Warning | LCH | 2 hr | |
| May 4, 11:26 AM CDT | River Flood Warning | LCH | Saint Martin, St. Mary | 47 days |
| May 4, 1:25 PM CDT | Wind Advisory | LCH | Avoyelles, Cameron, Evangeline, Lafayette, Rapides, Saint Landry and 1 more | 6 hr |
| May 4, 2:12 PM CDT | River Flood Warning | LCH | Vernon | 3 days |
| May 3, 7:21 PM CDT | Special Weather Statement | LCH | Jasper, Newton, Tyler | 54 min |
| May 3, 7:27 PM CDT | Severe Thunderstorm Warning | LCH | Hardin, Jasper, Tyler | 48 min |
| May 3, 9:39 PM CDT | Severe Thunderstorm Warning | LCH | Jefferson | 66 min |
Nearby
Areal Flood Warnings in Louisiana, 2017Areal Flood Warnings in Texas, 2017Every areal flood warning in 2017
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; radar from the NEXRAD Level II archive.