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.

Last Update: 432 PM EDT Tue Mar 26 2019

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Key West, FL Local Forecast Office

23NM N Smith Shoal Light FL

Marine Zone Forecast

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.

Northwest to north winds 10 to 15 knots, increasing to 15 to 20 knots late. Seas 2 to 3 feet, building to 3 to 4 feet. isolated showers.
Northwest to north winds 15 to 20 knots, increasing to near 20 knots. Seas 4 to 6 feet, building to 5 to 7 feet late. Isolated showers.
Wednesday Night
North to northeast winds 20 to 25 knots, increasing to near 25 knots. Seas 6 to 8 feet. Isolated showers.
North to northeast winds near 25 knots, decreasing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, subsiding to 4 to 6 feet. Isolated showers.
Thursday Night
Northeast winds 15 to 20 knots, increasing to near 20 knots. Seas 4 to 6 feet.
Northeast winds near 20 knots early, decreasing to near 15 knots. Seas 3 to 6 feet, subsiding to 2 to 5 feet.
Friday Night
East winds near 15 knots. Seas 2 to 4 feet. isolated showers.
East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers.
Saturday Night
East winds near 10 knots. Seas 1 to 2 feet. isolated showers.
Sunday And Sunday Night
Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
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Last Update: 432 PM EDT Tue Mar 26 2019
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