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Public Information Statement

Statement as of 6:15 PM EDT on May 21, 2013


... The National Weather Service and neracoos (northeastern regional
association of coastal ocean observing systems) continues to observe
may 18th through 24th as National safe boating week...

... Wind and waves...

The following is a safe boating message from the National safe
boating Council and the National Weather Service... reminding you
that National safe boating week is may 18th through may 24th.

National statistics in 2011 indicated that 377 boats went down in
calm seas nationally. However... 287 crafts also sunk under
choppy... rouch or very rough conditions during this period.

Wind and waves affect all types of boats so it is important all
boaters know some basic facts about winds and waves. Wind over water
is usually stronger than over nearby land. Wind is the main factor
in wave development and in general... the stronger the wind... the
larger the waves.

Individual waves are measured from trough to crest. Seas are the
combination of both locally generated wind waves and distantly
generated swell waves and are expressed in the terms of the
significant-wave-height... the mean or average height of the highest
one third of the waves. It approximates the value an experienced
observer would report if visually estimating sea height. When
expressed as a range (for example... seas 3 to 5 ft)... this indicates
a degree of uncertainty in the forecast and/or expected changing
conditions. The danger presented to a vessel is a function of wave
steepness as well as wave height and is unique to each vessel. In
general for small vessels... for a given wave height the danger
increases as the wave period decreases.

"The seventh wave of the seventh set"... an old fisherman's tale?
Perhaps... but it does serve to highlight that wave and surf
conditions are not always constant. In open waters... the occasional
wave may be twice that of the surrounding sea. There are occasional
reports of "rogue" waves of an even greater ratio. Near
shore... waves are even less predictable. So-called "sneaker waves"
can grab the unwary who venture too close to the unpredictable sea.
Mariners may be drawn too close to the surf zone during periods of
relative calm. Proceed cautiously and always be wary of this not
uncommon phenomenon... especially in areas where breaking surf is
known to occur or appears likely.

Winds and waves can change quickly in speed... direction and
steepness so it is important you include a marine forecast in your
preparations for boating.

This message from the National safe boating Council was forwarded to
you by the National Weather Service and the northeast regional ocean
observing system... neracoos.

Weather Severe Map
Alaska - Areal Flood Warning , Areal Flood Watch , Special Weather Statement , Record Report
Arizona - Wind Advisory , Fire Weather Warning
Arkansas - Tornado Watch , Severe Thunderstorm Warning , Flood Warning , Flash Flood Watch , Flash Flood Watch, Flood Advisory , Flood Advisory , Special Statement
California - High Surf Advisory , Lake Wind Advisory , Wind Advisory , Frost Advisory , Frost Advisory, Freeze Watch , Freeze Watch, Freeze Warning , Freeze Warning , Special Statement , Public Information Statement
Colorado - Fire Weather Warning , Fire Weather Watch , Public Information Statement
Connecticut - Severe Thunderstorm Watch , Severe Thunderstorm Warning , Areal Flood Advisory , Special Statement , Special Weather Statement , Air Quality Alert
Florida - Areal Flood Watch , Record Report
Georgia - Severe Thunderstorm Warning , Flash Flood Warning , Flood Warning , Areal Flood Advisory , Special Statement , Special Weather Statement , Record Report , Public Information Statement
Hawaii - High Surf Advisory , Wind Advisory , Record Report
Idaho - Lake Wind Advisory , Public Information Statement
Illinois - Flood Warning , Flood Advisory , Record Report , Public Information Statement
Indiana - Record Report , Public Information Statement
Iowa - Flood Warning
Kansas - Areal Flood Advisory , Record Report , Public Information Statement
Kentucky - Severe Thunderstorm Watch , Severe Thunderstorm Warning , Special Statement , Special Weather Statement , Record Report , Public Information Statement
Louisiana - Tornado Watch , Severe Thunderstorm Warning , Flood Warning , Public Information Statement
Maine - Public Information Statement
Massachusetts - Severe Thunderstorm Watch , Severe Thunderstorm Warning , Areal Flood Advisory , Special Statement
Michigan - Severe Thunderstorm Warning , Special Statement , Record Report , Public Information Statement
Minnesota - Flood Warning , Record Report , Public Information Statement
Mississippi - Tornado Watch , Flash Flood Warning , Flood Warning , Areal Flood Advisory , Flood Advisory
Missouri - Tornado Watch , Flood Warning , Flood Advisory , Record Report , Public Information Statement
Montana - Lake Wind Advisory , Winter Storm Watch , Special Statement , Public Information Statement
Nebraska - Wind Advisory , Public Information Statement
Nevada - Lake Wind Advisory , Wind Advisory , Freeze Watch
New Hampshire - Severe Thunderstorm Watch , Public Information Statement
New Mexico - Fire Weather Watch
New York - Severe Thunderstorm Watch , Tornado Warning , Severe Thunderstorm Warning , Severe Thunderstorm Warning , Dense Fog Advisory , Special Statement
North Carolina - Severe Thunderstorm Warning , Special Weather Statement , Special Statement , Record Report
North Dakota - Flood Warning, Areal Flood Warning , Areal Flood Warning , Flood Warning , Flash Flood Watch , Flood Watch , Record Report , Public Information Statement
Ohio - Severe Thunderstorm Watch , Special Statement , Record Report
Oklahoma - Tornado Watch , Flood Warning , Flood Warning, Flash Flood Warning , Flash Flood Warning , Flash Flood Watch , Flood Watch , Record Report , Public Information Statement
Oregon - Wind Advisory , Winter Weather Advisory , Freeze Warning , Special Statement , Special Weather Statement
Puerto Rico - Flash Flood Warning , Areal Flood Advisory
Rhode Island - Severe Thunderstorm Watch
South Carolina - Severe Thunderstorm Warning , Flood Warning , Special Statement , Record Report , Public Information Statement
South Dakota - Public Information Statement
Tennessee - Severe Thunderstorm Watch , Tornado Watch , Severe Thunderstorm Warning , Flash Flood Warning , Flood Warning , Areal Flood Advisory , Flood Advisory , Special Statement
Texas - Tornado Watch , Severe Thunderstorm Warning , Areal Flood Advisory , Record Report , Public Information Statement
Utah - Public Information Statement
Vermont - Severe Thunderstorm Watch , Special Statement
Virginia - Severe Thunderstorm Watch , Areal Flood Advisory , Flash Flood Watch , Special Statement , Special Weather Statement , Record Report
Washington - Winter Weather Advisory , Special Weather Statement
West Virginia - Severe Thunderstorm Watch , Flash Flood Watch , Special Statement , Record Report
Wisconsin - Flood Warning , Areal Flood Advisory
- Severe Thunderstorm Watch
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