Natchitoches under threat of heavy rainfall, flooding this week

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The threat of heavy rainfall and flooding are still on track for this week, especially from Tuesday through Thursday. The threat of heavy rainfall and flooding will increase during the upcoming week due to a slow-moving upper level low coupled with a series of stalled frontal boundaries. The axis of heavy rainfall will gradually shift southeast from the middle Red River Valley on Tuesday night through Wednesday and Thursday with the heaviest amounts generally along and south of the I-30 corridor where 4-6 inches are expected with isolated higher amounts possible. Rain will gradually taper off late Thursday night through Friday morning.

Timing and Overview:

A slow-moving upper level low coupled with a series of stalled frontal boundaries will result in widespread showers and thunderstorms with heavy rainfall gradually shifting southeast from the middle Red River Valley on Tuesday through Wednesday and Thursday with the heaviest rainfall amounts generally along and south of the I-30 corridor. Rain will gradually taper off Thursday night through Friday morning. Flash flooding and additional river flooding are likely to occur.

Four State Impacts:

Expected Accumulations: A wide swath of 3-6 inches area-wide with the heaviest rainfall axis along and south of I-30 where 4-6 inches are expected and some isolated higher amounts possible.

Impacts: Flash flooding threat will certainly exist, but recent dry period has helped soils to return to near normal moisture. A Flash Flood Watch may be warranted. Additional river flooding is also expected with most area waterways hovering near flood stage or still remaining in flood.