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: 938 AM EDT Sun Sep 15 2019

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Miami - South Florida Local Forecast Office

4NM WSW Biscayne Bay FL

Marine Zone Forecast


Synopsis: Swells produced by Tropical Storm Humberto in the Atlantic will cause hazardous marine conditions to develop starting as soon as tonight. Showers and thunderstorms continue to be possible through the week, although the chances should be on a downward trend after the beginning of the week.

.GULF STREAM HAZARDS...Seas are forecast to build to 7 feet by Monday and increase to around 9 feet by Wednesday due to a northerly swell.

The approximate location of the west wall of the Gulf Stream as of Sep 14, 2019 at 1200 UTC...

11 nautical miles southeast of Fowey Rocks. 14 nautical miles east southeast of Port Everglades. 7 nautical miles east southeast of Lake Worth. 9 nautical miles northeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

Rest Of Today
Southwest winds 5 to 15 knots. Bay waters a moderate chop. Slight chance of showers and thunderstorms in the morning, then chance of showers and thunderstorms.
Tonight
West southwest winds 5 to 10 knots. Bay waters a light chop. Slight chance of thunderstorms late in the evening. Slight chance of showers through the night.
Monday
West southwest winds 5 to 10 knots. Bay waters a light chop. Slight chance of thunderstorms in the morning. Chance of showers. Chance of thunderstorms.
Monday Night
Northwest winds 5 to 10 knots. Bay waters a light chop. Slight chance of showers and thunderstorms late in the evening.
Tuesday
North winds 5 to 10 knots becoming northeast. Bay waters a light chop. Chance of showers and slight chance of thunderstorms.
Tuesday Night
North northeast winds 5 to 10 knots. Bay waters a light chop. Slight chance of showers and thunderstorms.
Wednesday And Wednesday Night
Northeast winds 5 to 15 knots. Bay waters a moderate chop. Slight chance of showers and thunderstorms.
Thursday
Northeast winds 10 to 15 knots with gusts to around 25 knots. Bay waters a moderate chop. Slight chance of showers and thunderstorms in the morning, then chance of showers and thunderstorms.
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ABOUT THIS FORECAST

Last Update: 938 AM EDT Sun Sep 15 2019
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