Alert archive / Louisiana / Areal Flood Warnings in 2017
Areal Flood Warning 4, NWS Lake Charles, LA
NWS Lake Charles, LA issued this areal flood warning at Apr 3, 2017, 6:22 AM CDT for 9 parishes in Louisiana; Newton County, Texas. It was in force for 6 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
- Apr 3, 2017, 6:22 AM CDT (11:22 UTC)
- Expired
- Apr 3, 2017, 12:15 PM CDT
- In force
- 6 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Evangeline Parish, LA, Lafayette Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Vernon Parish, LA, Newton County, TX
The radar
The Ft Polk radar (KPOE), 56 km from the middle of the area, began a volume at 11:24 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, 11.4 hours before the alert went out and 86 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
- 2242 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 522 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 224 m²/s²
- 0-3 km storm-relative helicity
- 281 m²/s²
- Significant tornado parameter
- 4.2
- Supercell composite
- 14.7
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 Apr 3, 4:15 AM CDT, 2 hours 7 minutes earlier.
Area forecast discussion, Apr 3, 4:15 AM CDT, 2 hours 7 minutes before
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</html>Hazardous weather outlook, Apr 3, 5:04 AM CDT, 1 hour 18 minutes before
Hazardous Weather Outlook National Weather Service Lake Charles LA 504 AM CDT Mon Apr 3 2017 LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262- 041015- 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- 504 AM CDT Mon Apr 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 While rainfall has ended across the area, flash flooding will continue across parts of the area through the morning as flood waters continue to run off. Patchy fog this morning will have the potential to reduce visibilities in some areas. Use caution when driving as visibilities can vary significantly over short distances. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Patchy fog may develop early Tuesday morning. Use caution when driving as visibilities can vary significantly over short distances. A cold front will move through the area Wednesday spawning isolated showers and thunderstorms. These storms are not expected to be severe. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. GMZ430-432-435-450-452-455-470-472-475-041015- 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- 504 AM CDT Mon Apr 3 2017 This Hazardous Weather Outlook is for portions of Gulf of Mexico. .DAY ONE...Today and Tonight A small craft advisory is in effect until 7 am this morning. Winds of 20-25 MPH and seas of 5-7 feet will be possible during this period. Winds and seas will weaken through the day. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday A cold front will move through the area Wednesday spawning isolated showers and thunderstorms. These storms are not expected to be severe. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
In the hours before
Special weather statement, Apr 3, 4:38 AM CDT, 1 hour 44 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
438 AM CDT MON APR 3 2017
LAZ053>055-031045-
Lower St. Martin LA-Iberia LA-St. Mary LA-
438 AM CDT MON APR 3 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN IBERIA...ST. MARY
AND SOUTHEASTERN ST. MARTIN PARISHES UNTIL 545 AM CDT...
At 438 AM CDT, Doppler radar was tracking a strong thunderstorm 7
miles southwest of Belle River, moving northeast at 60 mph.
Half inch hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Morgan City, Franklin, Patterson, Berwick, Stephensville, Burns
Point, Bayou Vista, Baldwin, Ellerslie, Patterson Memorial Airport,
Charenton and Centerville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 2968 9110 2954 9141 2955 9140 2952 9155
2955 9152 2964 9156 2963 9162 2964 9164
2975 9160 2976 9162 2979 9161 3006 9138
3006 9127 3003 9124 3004 9122 3000 9126
2998 9126 2984 9119 2983 9112 2980 9109
TIME...MOT...LOC 0938Z 231DEG 51KT 2984 9131
K. KuyperThe office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 7:02 PM CDT | Special Weather Statement | LCH | Beauregard, Vernon | 43 min |
| Apr 2, 7:10 PM CDT | Severe Thunderstorm Warning | LCH | Rapides | 35 min |
| Apr 2, 7:28 PM CDT | Special Weather Statement | LCH | Rapides | 32 min |
| Apr 2, 7:34 PM CDT | Severe Thunderstorm Warning | LCH | Rapides, Vernon | 26 min |
| Apr 2, 8:04 PM CDT | Special Weather Statement | LCH | Rapides, Vernon | 41 min |
| Apr 2, 8:36 PM CDT | Special Weather Statement | LCH | Beauregard | 39 min |
| Apr 2, 8:59 PM CDT | River Flood Warning | LCH | Vernon | 5 days |
| Apr 2, 8:59 PM CDT | River Flood Warning | LCH | Beauregard, Calcasieu | 8 days |
| Apr 2, 9:09 PM CDT | Special Weather Statement | LCH | Rapides | 51 min |
| Apr 2, 9:27 PM CDT | Special Weather Statement | LCH | Beauregard | 48 min |
| Apr 2, 9:28 PM CDT | Areal Flood Advisory | LCH | Calcasieu, Jefferson Davis | 2 hr |
| Apr 2, 9:49 PM CDT | Flash Flood Warning | LCH | Rapides, Vernon | 3 hr |
| Apr 2, 10:04 PM CDT | Flash Flood Warning | LCH | Allen, Avoyelles, Beauregard, Evangeline, Rapides | 2 hr |
| Apr 2, 10:20 PM CDT | River Flood Warning | LCH | Calcasieu | 70 hr |
| Apr 2, 10:20 PM CDT | River Flood Warning | LCH | Beauregard | 4 days |
| Apr 2, 11:29 PM CDT | River Flood Warning | LCH | Beauregard, Vernon | 53 hr |
| Apr 2, 11:32 PM CDT | Areal Flood Advisory | LCH | Calcasieu | 118 min |
| Apr 3, 12:38 AM CDT | Flash Flood Warning | LCH | Allen, Avoyelles, Beauregard, Evangeline, Rapides, Vernon | 6 hr |
| Apr 3, 12:39 AM CDT | Flash Flood Warning | LCH | Acadia, Evangeline, Saint Landry | 6 hr |
| Apr 3, 3:36 AM CDT | Small Craft Advisory | LCH | 3 hr | |
| Apr 3, 4:38 AM CDT | Special Weather Statement | LCH | St. Mary | 67 min |
| Apr 3, 10:37 AM CDT | River Flood Warning | LCH | Allen | 5 days |
| Apr 3, 10:37 AM CDT | River Flood Warning | LCH | Allen | 8 days |
| Apr 3, 10:37 AM CDT | River Flood Warning | LCH | Allen, Jefferson Davis | 7 days |
| Apr 3, 10:37 AM CDT | River Flood Warning | LCH | Allen | 4 days |
| Apr 3, 10:37 AM CDT | River Flood Warning | LCH | Acadia, Allen, Evangeline, Jefferson Davis | 72 hr |
| Apr 3, 1:02 PM CDT | Areal Flood Warning | LCH | Allen, Avoyelles, Beauregard, Evangeline, Rapides, Vernon | 12 hr |
| Apr 3, 12:44 AM CDT | Areal Flood Warning | LCH | Hardin, Jasper, Newton, Tyler | 6 hr |
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.