Locally Heavy Rainfall Possible Over the Four Corners; Critical Fire Weather Conditions in the Great Basin

Monsoon moisture will result in locally heavy showers and thunderstorms over the Four Corners region, which could lead to flash flooding. While, critical fire weather threats are expected for much of the Great Basin, from dry and windy conditions. Finally, Tropical Cyclone Humberto remains well offshore of the Southeast, but rip currents and heavy surf are expected from Florida to the Carolinas.
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Last Update: 955 AM CDT Sun Sep 15 2019

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19NM SE Grand Isle LA

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...
Synopsis: An upper low and tropical wave will move westward through tonight allowing high pressure to settle over the north central Gulf through the remainder of the week.

Rest Of Today
East winds near 20 knots. Seas 4 to 6 feet. dominant period 7 seconds. Scattered showers and isolated thunderstorms.
Tonight
East winds 15 to 20 knots. Seas 3 to 5 feet. Dominant period 6 seconds. Scattered showers.
Monday
East winds 10 to 15 knots. Seas 3 to 4 feet. Dominant period 6 seconds. Numerous showers in the morning, then scattered showers and isolated thunderstorms in the afternoon.
Monday Night
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 5 seconds. Isolated showers and thunderstorms after midnight.
Tuesday
East winds near 5 knots becoming south late in the afternoon. Seas 1 to 2 feet. Dominant period 4 seconds. Isolated showers and thunderstorms in the morning.
Tuesday Night
Southwest winds 5 to 10 knots becoming northwest after midnight. Seas 1 foot or less. Dominant period 4 seconds.
Wednesday
North winds 5 to 10 knots becoming southwest late in the afternoon. Seas 1 foot or less. Dominant period 4 seconds.
Wednesday Night
West winds 5 to 10 knots becoming northwest after midnight. Seas 1 foot or less. Dominant period 4 seconds. Slight chance of showers and thunderstorms after midnight.
Thursday
Northeast winds 5 to 10 knots becoming east 10 to 15 knots in the afternoon. Seas 2 feet. Dominant period 4 seconds. Slight chance of showers and thunderstorms.
Thursday Night
East winds 10 to 15 knots. Seas 2 to 3 feet. dominant period 4 seconds. Chance of showers and thunderstorms.
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ABOUT THIS FORECAST

Last Update: 955 AM CDT Sun Sep 15 2019
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