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Waterspouts
usually develop over warm tropical ocean waters.
.
Like many forces in nature,
waterspouts can be both beautiful and dangerous. They've been known to overturn
boats, damage large ships, and put lives in jeopardy. If you spot one, exercise
extreme caution and keep your distance. Don't leave your safety up in the air –
try to avoid these turbulent twisters. If a waterspout is sighted, immediately
head at a 90 degree angle from the apparent motion of the waterspout. Never try
to navigate through a waterspout. Although waterspouts are usually weaker than
tornadoes, they can still produce significant damage to you and your boat.
The Ocean Today
They
are sometimes seen as threatening funnel clouds descending from stormy skies.
Others
can be nearly invisible, like a ghostly spiral of wind skimming the sea
surface.
These
eerie columns of rotating air are known as waterspouts — commonly defined as
tornadoes over water.
Waterspouts usually develop over
warm tropical ocean waters.
They're
spotted in the Florida Keys more than any other place in the world.
They've
also been seen over the waters of the Great Lakes.
Scientists
that study waterspouts generally put them in two categories: fair weather and
tornadic.
The tornadic waterspouts may
often begin as tornadoes over land and then move over water.
They
also form in severe thunderstorms over a body of water. They can wreak havoc
with high winds, hail, and dangerous lightning.
Fair weather waterspouts develop
in calmer weather.
They
form only over open water, developing at the surface and actually climbing
skyward towards the clouds.
The
size of all waterspouts can range from just a few feet, to several hundred feet
wide.
Research
shows that fair weather waterspouts exhibit a five-stage life cycle:
Stage 1 is the formation of a disk on the surface of the
water, known as a dark spot;
Stage 2 is a spiral pattern on the water surface;
Stage 3 is a formation of a spray ring;
Stage 4 is where the waterspout becomes a visible
funnel; and the lifecycle ends with
Stage 5 is where the waterspout decays.
Like many forces in nature,
waterspouts can be both beautiful and dangerous.
They've
been known to overturn boats, damage large ships, and put lives in jeopardy.
If
you spot one, exercise extreme caution and keep your distance.
Don't
leave your safety up in the air – try to avoid these turbulent twisters.
Fast Facts
Waterspouts are spotted in the Florida Keys - more than any
other place on earth.
Listen for special marine warnings about waterspout sightings
that are broadcast on NOAA Weather Radio.
Watch the sky for certain types of clouds.
In the summer, with light winds, look for a possible waterspout
underneath a line of cumulus clouds with dark, flat bases.
Anytime of the year, a thunderstorm or line of thunderstorms,
can produce very intense waterspouts.
If a waterspout is sighted, immediately head at a 90 degree
angle from the apparent motion of the waterspout.
Never try to navigate through a waterspout.
Although waterspouts are usually weaker than tornadoes, they can still produce significant damage to you and your boat.
The Ocean Today website provides access to
the current and archived videos that play on the Ocean Today multimedia
exhibit. Ocean Today was designed as a highly dynamic, visitor-friendly
experience at the Sant Ocean Hall in the Smithsonian Institution's National
Museum of Natural History. It has expanded to many other locations around the
world.
The Ocean Today website is an online
archive of the videos that appear on the physical kiosks. The videos are
categorized in the seven theme areas: Collections, Danger Zone, Exploration,
Fix the Ocean, Go Fish, Marine Life, and Research. A description of Ocean
Today, kiosks locations, how to obtain a kiosk and requirements, and
contributor information can found in the “What
is Ocean Today” section.
https://oceantoday.noaa.gov/waterspouts/
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