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Marine Forecasts/Warnings

MARINE FORECASTS

MARINE WARNINGS/STATEMENTS

OTHER LINKS AND RESOURCES

MARINE WEATHER TERMINOLOGY

COASTAL FLOOD WATCH:  Issued when conditions are favorable for tidal flooding or storm-induced flooding along coastal areas withing approximately 12-36 hours, but the occurrence is still uncertain.

COASTAL FLOOD WARNING:  Issued when tidal flooding or storm-induced flooding is occurring, imminent, or highly likely along coastal areas within approximately the next 12 hours.

GALE WARNING:  Issued when sustained winds in the range of 35-47 knots (40-54 mph) are occurring or are imminent.  Gale warnings are issued up to 24 hours before the above conditions are expected.

KNOT:  Unit of speed used for navigation interests.  A knot is equal to 1 nautical mile per hour or 1.15 statute miles per hour.  For a simple conversion from knots to miles per hour, simply multiply the wind speed given in knots by 1.15.

NAUTICAL MILE:  Unit of distance used for marine navigation.  A nautical mile is equal to approximately 1.15 statute miles.

NEAP TIDE:  Occurs the first and third quarters of the moon.  Value is usually 10 to 30 percent less than the mean tidal range.

SMALL CRAFT ADVISORY:  Issued when sustained winds in the range of 25-34 knots (29-39 mph) and/or seas 6 feet or higher are occurring or are imminent.  Also issued to alert small boat operators of any sea condition that may be hazardous.

SPECIAL MARINE WARNING:  A warning for potentially hazardous weather conditions usually for 2 hours or less and producing wind speeds of 34 knots (39 mph) or greater.

STORM WARNING:  Issued when sustained winds of 48 knots (55 mph) or greater are occurring or are imminent.

More on Marine Weather Terminology compliments of The Weather Center

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