Hazardous Weather Outlook: Parish President declares state of emergency, flood warnings in effect

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Parish President Rick Nowlin declared a State of Emergency for Natchitoches Parish on Feb. 26 to ensure preparations will be adequate to deal with emergencies that threaten the lives and property of the residents. This declaration is effective immediately. (see below)

The National Weather Service issued a flood warning in connection with rising water levels of the Red River and its tributaries, with the potential for thousands of acres of land and numerous roads to be flooded.

A number of Parish roads were already compromised due to heavy rains, flooding conditions and/or washouts, making them unsafe for motorists. The Parish could experience additional damage to its roads due to flooding conditions and additional rainfall.

As of 3 pm Monday, the latest water level recorded at Grand Ecore on the Red River was 33.79 feet, which is above the 33 flood stage. Expected to crest Feb. 28 at 39 feet. In 2015 the Red River crested at 42.03 feet and in 2016 it crested at 41.89 feet when the Parish experienced major flooding. The water level during the current rain event is not expected to reach these previous crests.

At 38 feet the following flood impacts can be expected: Expect several hundred acres of floodplain inundated near the levees. Also expect major backwater flooding up through Bayou Pierre to between Powhattan and Evelyn, Louisiana. Also expect backwater flooding up through Iatt, Nantaches, and Black, Clear, and Saline Bayous.

At 40 feet the following flood impacts can be expected: Major backwater flooding problems will affect Bayou Pierre, Black and Saline Bayous and the Cane River Lake tributaries with thousands of acres flooded. Severe backwater flooding will spread upstream along Bayou Pierre through Powhattan and Evelyn, Louisiana. Also expect backwater flooding of Black and Clear lakes along with the closure of Louisiana highway 1226.

Water Levels

Hazardous Weather Outlook:

DAY ONE…This Afternoon and Tonight…

No hazardous weather is expected.

DAYS 2-7…Tuesday through Sunday…

Several rounds of heavy rainfall will return between Tuesday morning through Thursday evening as a warm front lifts northeast across the area late Tuesday, followed by an upper-level disturbance on Wednesday, then by a stronger upper-level trough of low pressure and surface cold front Wednesday night and Thursday. Periods of flash flooding will be possible during the
heavy rainfall events along with the threat of severe storms Wednesday evening and into the night.

FLOOD WARNING: Black Lake Bayou near Clarence, Louisiana.
* until further notice…or until the warning is cancelled.
* At 11:30 AM Monday The pool stage was 106.2 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Flood pool stage is 106 feet.
* Forecast…The lake will continue rising to near 108.0 feet by
Thursday evening. Additional rises remain possible thereafter.
* Impact…Secure boats and docks for high water. Expect flooded
trails and access roadways.

NPG State of Emergency 2 2018 -1NPG State of Emergency 2 2018 -2

 

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