Atchafalaya River Flood Stage Changes

 

Changes to Some Atchafalaya River Flood

Stages Set for October 10th 2013

Area Map

On October 10, 2013: Flood stages at four forecast points along the Atchafalaya River will be changed to better reflect flood impacts along the reaches of the river served by these forecast points.

 The National Weather Service will change the river flood criteria at four locations along the Atchafalaya River to better reflect the flood impacts at the following locations: Butte La Rose, Melville, Krotz Springs, and Morgan City. 

At Butte La Rose, the new levels are 17 feet action stage; 20 feet minor flood stage; 25 feet moderate flood stage; and 28 feet for major flood stage. The current levels are: 23 feet action stage; 25 feet flood stage; 27 feet moderate flood stage; and 28 feet major flood stage.

 

Butte La Rose

 

New Criteria

Current Criteria

Action Stage

17 Feet

23 Feet

Flood Stage

20 Feet

25 Feet

Moderate Flood Stage

25 Feet

27 Feet

Major Flood Stage

28 Feet

28 Feet



At Melville, the new levels are 33 feet action stage; 34 feet minor flood stage; 45 feet moderate flood stage; and 50 feet for major flood stage. The current criteria are 40 feet action stage; 41 feet minor flood stage; 45 feet moderate flood stage; and 50 feet major flood stage.

Melville

 

New Criteria

Current Criteria

Action Stage

33 Feet

40 Feet

Flood Stage

34 Feet

41 Feet

Moderate Flood Stage

45 Feet

45 Feet

Major Flood Stage

50 Feet

50 Feet



At Krotz Springs, the new levels are 28 feet action stage; 29 feet minor flood stage; 40 feet moderate flood stage; and 43 feet for major flood stage. The current criteria are 36 feet action stage; 37 feet minor flood stage; 40 feet moderate flood stage; and 43 feet major flood stage.

Krotz Springs

 

New Criteria

Current Criteria

Action Stage

28 Feet

36 Feet

Flood Stage

29 Feet

37 Feet

Moderate Flood Stage

40 Feet

40 Feet

Major Flood Stage

43 Feet

43 Feet


At Morgan City, the new levels are 4 feet action stage; 6 feet minor flood stage; 7 feet moderate flood stage; and 12 feet for major flood stage. 

Morgan City

 

New Criteria

Current Criteria

Action Stage

4 Feet

4 Feet

Flood Stage

6 Feet

4 Feet

Moderate Flood Stage

7 Feet

7 Feet

Major Flood Stage

12 Feet

12 Feet

 

These changes in the flood criteria will allow emergency managers in Avoyelles, St. Mary, St. Martin, St. Landry, and Iberia parishes to better serve the communities that would be impacted by flooding. These flood criteria reflect input from the leaders of these parishes, along with first responders, and citizens.

Important: These changes will not affect flood insurance maps or flood insurance rates for these locations. This will only affect the watch and warning criteria at this locations.

If you have any questions, you may contact:

Kenneth Graham
Meteorologist-In-Charge
kenneth.graham@noaa.gov

NWS New Orleans/Baton Rouge, LA
62300 Airport Road
Slidell, LA 70460-6243
(985) 649-0429 or (504) 522-7330

or

Andy Patrick
Meteorologist-In-Charge
andy.patrick
@noaa.gov

National Weather Service
Lake Charles Weather Forecast Office
500 Airport Boulevard Lake Charles, LA 70607
(337) 477-5285

 

 



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