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Tropical Wave: A
cluster of clouds and/or thunderstorm without a significant circulation
and generally moving from east to west through the Tropics.
Tropical Depression: A cluster of clouds
and/or thunderstorm without a significant circulation and substained
wind speeds of less than 39mph.
Tropical Storm: An
organized system of strong thunderstorms with top sustained winds
of 39mph to 73mph. Tropical storms can quickly develop into hurricanes.
Storms are named when they reach tropical storm strength.
Tropical Storm Watch:
Tropical storm conditions are expected in the specified
area of warning, within 36hours.
Tropical Storm Warning: Tropical
storm conditions are expected in the specified area of warning,
within 24 hours.
Hurricane: An
intense tropical weather system with a sustained wind speed of 74mph
or higher.
Storm
Surge: A dome of sea water up to about
20 feet high that arrives with a hurricane, and can affect more
than 100 miles of coastline. Evacuation zones are identified by
their likelihood of being flooded by this rising water, which is
responsible for most hurricane deaths.
Hurricane Watch: Hurricane
Conditions are expected in the specified area of the warning within
36 hours. During a hurricane watch, prepare to take immediate action
to protect your family and property in case a hurricane warning
is issued.
Hurricane Warning: Hurricane
Conditions are expected in the specified area of the warning within
24 hours. Complete all storm preparations and immediately follow
local emergency management officials' advice about evacuation.
Tornado:
Tornados ocur ususally in severe thunderstroms when
wind changes direction and height, causing rotation. Windspeeds
range from 40mph to 318mph. Landfalling rainbands.
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