Locally Heavy Rain and Snow Across Parts of the West Mid-Week

Heavy lower elevation rains and mountain snows are expected across northern California on Wednesday, as a storm system moves inland off the Pacific. This storm will spread heavy snows into the northern and central Rockies and portions of the High Plains late in the week. As it moves east, additional moderate to heavy rainfall is possible across parts of the already flooded Midwest by Friday.
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Last Update: 432 PM EDT Tue Mar 26 2019

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Key West, FL Local Forecast Office

3NM N American Shoal Light FL

Marine Zone Forecast


...SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED WEDNESDAY NIGHT...
Synopsis: High pressure centered over the Great Lakes will build southwest into the Gulf of Mexico tonight and Wednesday. Meanwhile, a low pressure system will slowly develop near the Bahamas. Freshening northerly breezes are expected as the low pressure system moves southeast through the Bahamas, and a period of strong north to northeast breezes are expected Wednesday night and Thursday. Breezes will diminish and turn to the east southeast Friday through Sunday.

The Approximate Shoreward Edge of the Gulf Stream as of March 26...

52 NM South of Dry Tortugas Light...on Loggerhead Key. 48 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 44 NM South of Sand Key Light...off Key West. 16 NM South of Looe Key...off Big Pine Key. 13 NM South of Sombrero Key Light...off Marathon. 9 NM Southeast of Alligator Reef Light...off Islamorada. 6 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.

Tonight
Northwest to north winds 10 to 15 knots, increasing to near 15 knots. Seas 1 to 3 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. Isolated showers.
Wednesday
Northwest to north winds 15 to 20 knots. Seas 2 to 3 feet, except 3 to 5 feet west of cosgrove shoal light. Nearshore waters choppy. Isolated showers.
Wednesday Night
North winds near 20 knots, increasing to 20 to 25 knots. Seas 2 to 5 feet. Nearshore waters rough, becoming very rough. Isolated showers.
Thursday
North to northeast winds 20 to 25 knots, decreasing to 15 to 20 knots. Seas 2 to 5 feet, subsiding to 2 to 4 feet. nearshore waters very rough, becoming choppy. Isolated showers.
Thursday Night
North to northeast winds increasing to near 20 knots. Seas 2 to 4 feet. Nearshore waters becoming rough. isolated showers.
Friday
Northeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, subsiding to 2 to 3 feet. Nearshore waters choppy, becoming a moderate chop. Isolated showers.
Friday Night
Northeast to east winds near 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop. Isolated showers.
Saturday
East winds 10 to 15 knots. Seas 1 to 3 feet. nearshore waters a light to moderate chop. Isolated showers.
Saturday Night
East winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers.
Sunday And Sunday Night
East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop. isolated showers.
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Last Update: 432 PM EDT Tue Mar 26 2019
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