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
WISTV License Subsidiary, LCC
1111 Bull St.