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.
Read More...

Last Update: 1034 AM EDT Sun Sep 15 2019

View Nearby Observations

For More Weather Information:

Key West, FL Local Forecast Office

3NM N American Shoal Light FL

Marine Zone Forecast


Synopsis: A weak pressure pattern will persist across the Florida Keys and adjacent coastal waters this afternoon. Breezes will turn westerly and freshen some by late. Tropical Storm Humberto will move northward and then northeastward over the western North Atlantic during the next few days. An area of high pressure will build slowly across the eastern Gulf of Mexico through the end of the week.

The Approximate Shoreward Edge of the Gulf Stream as of September 14, 2019...

58 NM South of Dry Tortugas Light...on Loggerhead Key. 32 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 20 NM South of Sand Key Light...off Key West. 11 NM South of Looe Key...off Big Pine Key. 9 NM South of Sombrero Key Light...off Marathon. 3 NM Southeast of Alligator Reef Light...off Islamorada. 1 NM Southeast of Molasses Reef Light...off Key Largo. 4 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

This Afternoon
Variable winds near 5 knots, becoming west and increasing to 5 to 10 knots late. Seas around 1 foot. Nearshore waters smooth to a light chop. Scattered showers and thunderstorms.
Tonight
West winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Scattered showers and thunderstorms.
Monday
West winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. Scattered showers and thunderstorms.
Monday Night
Northwest winds 10 to 15 knots. Seas 1 to 3 feet. nearshore waters a light to moderate chop. Scattered showers and thunderstorms.
Tuesday
North winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Scattered showers and thunderstorms.
Tuesday Night And Wednesday
North to northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Scattered showers and thunderstorms.
Wednesday Night Through Thursday Night
Northeast to east winds 10 to 15 knots. Seas 1 to 3 feet. Nearshore waters a light to moderate chop. Scattered showers and thunderstorms.
  Click Map For Detailed Forecast

ABOUT THIS FORECAST

Last Update: 1034 AM EDT Sun Sep 15 2019
  Forecast Discussion
   

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data