Multi-Day and Region Severe Weather Event

A multi-day weather event with severe storms and heavy rainfall will impact several parts of the country. Today, an enhanced risk of severe storms capable of a few strong tornadoes and wind damage are forecast across the central Gulf Coast states. Flash Flooding is also possible from the central Gulf Coast to the Ohio Valley. These threats will press eastward towards the East Coast on Friday.
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Last Update: 503 PM EDT Thu Apr 18 2019

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Miami - South Florida Local Forecast Office

11NM W Marco Island FL

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH LATE FRIDAY NIGHT...
Synopsis: Breezy southeast winds will veer to southerly and southwesterly for tonight through Friday, before a front moves across the region Friday evening. Winds will shift to the northwest behind the front into Saturday morning. A Small Craft Advisory for winds and waves is in effect for portions of this period. Winds will decrease through the day Saturday. Chances for showers and thunderstorms will increase tonight into Friday, with this activity clearing the region from west to east Friday night.

.GULF STREAM HAZARDS...Southerly winds of 15 to 25 kt are expected over the Gulf Stream waters for tonight through Friday night.

The approximate location of the west wall of the Gulf Stream as of Apr 18, 2019 at 1200 UTC...

7 nautical miles east northeast of Fowey Rocks. 16 nautical miles east northeast of Port Everglades. 11 nautical miles east northeast of Lake Worth. 12 nautical miles northeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

Tonight
South southeast winds 10 to 15 knots nearshore and south southeast 15 to 25 knots offshore. Seas 2 to 4 feet with occasional seas to 5 feet. Period 4 seconds. Bay and inland waters a moderate chop. Slight chance of showers in the evening, then chance of showers and slight chance of thunderstorms after midnight.
Friday
South southwest winds 15 to 25 knots with gusts to around 30 knots. Seas 2 to 4 feet with occasional seas to 5 feet nearshore and 4 to 6 feet with occasional to 8 feet offshore. period 4 seconds. Bay and inland waters a moderate chop. Chance of showers and thunderstorms in the morning, then showers with thunderstorms likely in the afternoon.
Friday Night
West northwest winds 10 to 20 knots. Seas 3 to 5 feet with occasional seas to 6 feet nearshore and 4 to 6 feet with occasional to 8 feet offshore. Period 8 seconds. Bay and inland waters choppy in exposed areas. Showers with thunderstorms likely in the evening, then chance of showers after midnight.
Saturday
West northwest winds 10 to 15 knots nearshore and west northwest 15 to 20 knots offshore. Seas 2 to 4 feet with occasional seas to 5 feet nearshore and 4 to 6 feet with occasional to 8 feet offshore. Period 9 seconds. Bay and inland waters a moderate chop.
Saturday Night
North winds 5 to 15 knots nearshore and north northwest 10 to 15 knots offshore. Seas 2 to 4 feet with occasional seas to 5 feet nearshore and 3 to 5 feet with occasional to 6 feet offshore. Bay and inland waters a light chop.
Sunday
North winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Bay and inland waters a light chop.
Sunday Night Through Tuesday
East northeast winds 5 to 15 knots. Seas around 2 feet. Bay and inland waters a light chop.
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ABOUT THIS FORECAST

Last Update: 503 PM EDT Thu Apr 18 2019
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