Wintry Conditions Over The Rockies, Heavy Rainfall And Flash Flooding Threat Over The Desert Southwest

Remnant moisture from what was once Tropical Storm Raymond will continue to produce heavy rainfall and the threat for flash flooding over the Desert Southwest into Thursday. Heavy snow will also be possible over parts of the Rockies, and will likely cause hazardous travel. Meanwhile, critical fire weather conditions continue across northern California into Thursday morning.
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Hazardous Weather Conditions

Hazardous Weather Outlook

Last Update: 337 PM CST Wed Nov 20 2019

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New Orleans/Baton Rouge, LA Local Forecast Office

19NM SE Grand Isle LA

Marine Zone Forecast

Synopsis: Ridge of high pressure will slide east of the marine zones through Thursday. The next cold front to move through the coastal waters Saturday afternoon.

Tonight

Southeast winds 10 to 15 knots. Seas 1 to 2 feet. dominant period 4 seconds.

Thursday

Southeast winds 10 to 15 knots. Seas 1 to 3 feet. dominant period 4 seconds.

Thursday Night

Southeast winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 5 seconds.

Friday

South winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 5 seconds.

Friday Night

South winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 5 seconds. Chance of showers and isolated thunderstorms through the night.

Saturday

Southwest winds 15 to 20 knots becoming northwest in the afternoon. Seas 3 to 5 feet. Dominant period 5 seconds. Showers likely in the morning. Isolated thunderstorms through the day. Chance of showers in the afternoon.

Saturday Night

North winds 15 to 20 knots. Seas 3 to 6 feet. Dominant period 4 seconds.

Sunday

North winds 15 to 20 knots easing to 5 to 10 knots in the afternoon. Seas 3 to 5 feet. Dominant period 5 seconds. Waves or seas subsiding to 1 to 2 feet. Dominant period 5 seconds in the afternoon.

Sunday Night

North winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds.

Monday

Northeast winds 5 to 10 knots becoming south in the late morning and afternoon. Seas 1 to 2 feet. Dominant period 5 seconds.

Monday Night

South winds 10 to 15 knots. Seas 2 to 3 feet. dominant period 4 seconds. Slight chance of showers after midnight.