Heavy rain, mountain snow and strong winds in the western U.S. this week

The western U.S. will experience active weather yet again this week as significant Pacific moisture brings rain and mountain snow to the region. This heavy rain will bring flood concerns to parts of WA, OR and CA. Very heavy snow is possible in the Sierra, Cascades, Great Basin and parts of the northern Rockies.
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Hazardous Weather Conditions

Last Update: 409 AM EST WED JAN 18 2017

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Tampa Bay, FL Local Forecast Office

6NM SE Sanibel FL

Marine Zone Forecast

IMPORTANT NOTICE TO MARINERS...MARINE FORECASTS ARE ISSUED AT LEAST FOUR TIMES A DAY. BOATERS ON EXTENDED TRIPS SHOULD ROUTINELY MONITOR SUBSEQUENT FORECAST ISSUANCES AND UPDATED FOR THE LATEST MARINE WEATHER INFORMATION. THE WAVE HEIGHTS ARE FORECAST AS SIGNIFICANT WAVE HEIGHT WHICH IS THE AVERAGE OF THE HIGHEST ONE-THIRD OF THE WAVES. THE HIGHEST WAVES MAY RARELY BE TWICE THE SIGNIFICANT WAVE HEIGHT. THE WINDS AND SEAS NEAR THUNDERSTORMS MAY BE HIGHER THAN FORECAST.

Synopsis: HIGH PRESSURE REMAINS IN CONTROL OF THE FORECAST WATERS THROUGH THURSDAY KEEPING WINDS AND SEAS LIGHT. CHANCES FOR A FEW PASSING SHOWERS AND SOME ELEVATED WINDS INCREASES FRIDAY INTO SATURDAY...ESPECIALLY ACROSS THE NORTHERN AND OFFSHORE WATERS. THE POTENTIAL FOR SEA FOG DEVELOPMENT WILL ALSO BE INCREASING BY FRIDAY AND SATURDAY. A STRONG COLD FRONT IS CURRENTLY EXPECTED TO THEN APPROACH THE REGION DURING SUNDAY WITH INCREASING POTENTIAL FOR A ROUND OF THUNDERSTORMS AND ROUGH BOATING CONDITIONS. THIS FRONT LOOKS TO CROSS THE REGION LATE SUNDAY INTO SUNDAY NIGHT WITH STRONG WEST AND NORTHWEST WINDS IN ITS WAKE FOR THE DAY ON MONDAY.

Today
Southeast winds around 5 knots then becoming southwest 5 to 10 knots in the afternoon. Seas 2 feet or less. Bay and inland waters smooth.
Tonight
West winds around 5 knots then becoming northeast after midnight. Seas 2 feet or less. Bay and inland waters smooth.
Thursday
Southeast winds around 5 knots then becoming southwest around 10 knots in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
Thursday Night
South winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Friday
South winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Friday Night
South winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Saturday
South winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. A slight chance of thunderstorms.
Saturday Night
South winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop. A slight chance of thunderstorms.
Sunday
South winds around 20 knots. Seas 3 to 5 feet. Bay and inland waters choppy. A chance of thunderstorms.
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ABOUT THIS FORECAST

Last Update: 409 AM EST WED JAN 18 2017
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