Slow Moving Cold Front Moves into the Central U.S.

A slow moving cold front continues to move eastward across the U.S. this weekend. Behind the cold front is unseasonably cold weather and high elevation snows; ahead of the front, temperatures are more typical of mid-summer. The front separating these extremes will help focus heavy rain, with the potential for flash flooding extending from eastern New Mexico and western Texas to the Upper Midwest.
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Hazardous Weather Conditions

Last Update: 1032 AM EDT Sat Sep 23 2017

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Miami - South Florida Local Forecast Office

5NM SE Biscayne Bay FL

Marine Zone Forecast


Synopsis: Hurricane Maria is forecast to lift north of the Bahamas as it remains well east of Florida late this weekend. This will bring a reinforcing northeasterly swell to the South Florida Atlantic waters, bringing hazardous seas starting late tonight into Sunday. The swell is expected to continue to move into the waters through at least the middle part of the upcoming week. Northeasterly flow of 10-15 knots will continue today, diminishing and becoming north to northwest late this weekend.

.GULF STREAM HAZARDS...Seas up to 6 feet in a northeasterly swell today. Seas building 7 to 8 feet late tonight and Sunday in a long period swell of 12 to 14 seconds.

The approximate location of the west wall of the Gulf Stream as of Sep 21, 2017 at 1200 UTC...

6 nautical miles east southeast of Fowey Rocks. 11 nautical miles east of Port Everglades. 5 nautical miles east northeast of Lake Worth. 8 nautical miles east northeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

Rest Of Today
Northeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Period 11 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms.
Tonight
Northeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Period 11 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms.
Sunday
North northeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Period 10 seconds. North northeast swell around 3 feet. Intracoastal waters a light chop. A chance of thunderstorms in the morning. A chance of showers . A slight chance of thunderstorms.
Sunday Night
North winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Period 11 seconds. North northeast swell 3 to 4 feet. Intracoastal waters a light chop. A slight chance of showers and thunderstorms.
Monday
North northwest winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas to 6 feet. North northeast swell 3 to 4 feet. Intracoastal waters a light chop.
Monday Night And Tuesday
Northwest winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas to 6 feet. North northeast swell 3 to 4 feet. Intracoastal waters a light chop. A chance of showers and a slight chance of thunderstorms.
Tuesday Night
West winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas to 6 feet. North northeast swell 3 to 4 feet. Intracoastal waters a light chop. A slight chance of showers.
Wednesday
West southwest winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Intracoastal waters a light chop. A slight chance of showers.
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ABOUT THIS FORECAST

Last Update: 1032 AM EDT Sat Sep 23 2017
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