Increasing Risk for Flash and River Flooding Through the Weekend

A storm system will track across the central U.S. and set the stage for severe thunderstorms and widespread heavy rainfall through the weekend. There will be a threat for flash and river flooding for portions of the Southern Plains into the Upper Midwest.
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Last Update: 421 PM EDT FRI APR 28 2017

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Key West, FL Local Forecast Office

3NM NNE Florida Bay FL

Marine Zone Forecast

SEAS ARE GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

...SMALL CRAFT ADVISORY IN EFFECT FOR INCREASING WINDS...
Synopsis: AN ATLANTIC RIDGE OF HIGH PRESSURE OVER NORTH CENTRAL FLORIDA WILL LIFT NORTHWARD TONIGHT THROUGH SUNDAY NIGHT.

THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM CURRENT...AS OF APRIL 28TH...

54 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY. 35 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS. 27 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST. 18 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY. 22 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON. 26 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA. 10 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
East to southeast winds near 15 knots...increasing to near 20 knots. Bay waters a moderate chop...becoming rough
Saturday
East to southeast winds 15 to 20 knots. Bay waters choppy.
Saturday Night Through Sunday Night
East to southeast winds near 20 knots. Bay waters rough. Isolated showers.
Monday
East to southeast winds 15 to 20 knots...decreasing to near 15 knots. Bay waters choppy...becoming a moderate chop. isolated showers.
Monday Night
East to southeast winds near 15 knots. Bay waters a moderate chop. Isolated showers.
Tuesday And Tuesday Night
East winds 10 to 15 knots. Bay waters a light to moderate chop. Isolated showers.
Wednesday And Wednesday Night
East winds near 15 knots. Bay waters a moderate chop. Isolated showers.
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ABOUT THIS FORECAST

Last Update: 421 PM EDT FRI APR 28 2017
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