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Friday, 27 August 2004 |
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CLOSEST POINT OF APPROACH (CPA) Point where hurricane eye makes closest contact to shore without actually making landfall.
COASTAL FLOOD WARNING A warning that significant wind-forced flooding is to be expected along low-lying coastal areas if weather patterns develop as forecast.
 COASTAL FLOOD
WATCH An alert that significant
wind-forced flooding is to be expected along low-lying coastal areas if weather
patterns develop as forecast.
COUNTY
EMERGENCY MANAGEMENT AGENCY
Local government organization
created in accordance with the provision of Florida Statutes 252.31-252.60 to
discharge emergency management responsibilities and functions of the
County.
COUNTY
EMERGENCY OPERATIONS CENTER (EOC)
The county facility that serves as
a central location for the coordination and control of all emergency
preparedness and response activities.
EMERGENCY ALERT
SYSTEM (EAS)
A system designed to permit
government officials to issue up-to-date and continuous emergency information
and instructions to the public in case of a threatened or actual
emergency.
EMERGENCY
PUBLIC INFORMATION
Information which is disseminated
primarily, but not unconditionally, at the actual time of an emergency; and in
addition to providing information as such, frequently directs actions,
instructions, and transmits direct orders.
EMERGENCY
PUBLIC SHELTER
Generally a public school or other
such structure designated by County officials as a place of
shelter.
EVACUATION
TIME
The lead time that a populated
coastal jurisdiction must have to safely relocate all residents of vulnerable
areas from an approaching hurricane. This time can also be perceived as the
necessary amount of time between the issuance of the local official evacuation
order and the arrival of sustained tropical storm winds (40 mph) and/or
flooding.
EXTENT OF
EVACUATION
The identification of vulnerable
people who must evacuate as a result of various hurricane scenarios, based on
estimated inundation areas and/or dwelling units susceptible to hurricane force
winds.
FLOOD
WARNING
Indicates the expected severity of
flooding (minor, moderate, or major), as well as where and when the flooding
will begin.
FORWARD SPEED
(HURRICANE)
The rate of movement (propagation)
of the hurricane eye in miles per hour or knots.
HURRICANE
The term is used when
winds reach constant speed of 74 miles per hour or more. These winds blow in a
large spiral around a relatively calm center of extremely low pressure known as
the eye of the hurricane. Around the rim of the eye, winds may gust to more than
200 miles per hour. The entire storm dominates the ocean surface and lower
atmosphere over tens of thousands of square miles.
HURRICANE
ADVISORIES
Notices numbered consecutively for
each storm, describing the present and forecasted position and intensity of the
storm. Advisories are issued at six-hour intervals. Bulletins provide additional
information. Each message gives the name, eye position, intensity, and forecast
movement of the storm.
HURRICANE
EYE
The relatively calm area near the
center of the storm. In this area winds are light and the sky is often partly
covered by clouds.
HURRICANE EYE
LANDFALL
The point in time when the eye, or
physical center of the hurricane reaches the coastline from the hurricane’s
approach over water.
HURRICANE PATH
OR TRACK
Line of movement (propagation) of
the eye through an area.
HURRICANE
SEASON
The portion of the year having
relatively high incidence of hurricanes. In the Atlantic, Caribbean and Gulf of
Mexico, it is usually regarded as the period from June 1st through November
30th.
HURRICANE
WARNING
An alert added to a hurricane
advisory when hurricane conditions are expected within 24 hours. Hurricane
warnings identify coastal areas where winds of at least 74 miles per hour are
expected to occur. A warning may also describe coastal areas where dangerously
high water or exceptionally high waves are forecast, even though winds may be
less than hurricane force.
HURRICANE
WATCH
An alert added to a hurricane
advisory covering a specified area and duration. A hurricane watch means that
hurricane conditions are a real possibility; it does not mean they are imminent.
When a hurricane watch is issued, everyone in the area covered by the watch
should listen for further advisories and be prepared to act quickly if hurricane
warnings are issued.
NOAA WEATHER
RADIO
A twenty-four hour continuous
broadcast of existing and forecasted weather
conditions.
PRE-EYE
LANDFALL TIME
The time before actual hurricane
eye landfall or CPA within which evacuation cannot be carried out because of
earlier effects such as the inundation of evacuation routes from the storm surge
or rainfall and the arrival of sustained gale force winds. It is composed of the
time of arrival of sustained gale force winds or the time roadway inundation
from storm surge/rainfall begins, whichever comes
first.
PUBLIC
INFORMATION OFFICER (PIO)
An individual appointed by County
Emergency Operations Center (EOC) to be responsible for the formulating and
coordinating of emergency public information with both the electronic and
written media, ensuring that accurate information is being released to the
general public.
SEVERE
THUNDERSTORM WARNING
Indicates that severe thunderstorms
have been sighted or indicated on radar.
SEVERE
THUNDERSTORM WATCH Indicates that conditions are
favorable for lightning, damaging winds greater than 58 miles and hail and/or
heavy rainfall.
SMALL CRAFT
ADVISORY
A warning of winds from 20 to 33
knots inclusive or for sea conditions either forecasted or occurring which are
considered potentially hazardous to small boats in coastal
waters.
SPECIAL MARINE
WARNING
A warning for hazardous weather
conditions, usually of short duration, not adequately covered by existing marine
warnings. Such weather conditions include sustained winds or gusts of 35 knots
or more with a duration of 2 hours or less.
SQUALL
A sudden increase of wind speed by
at least 18 miles per hour (16 knots) and rising to 25 miles per hour (22 knots)
or more and lasting for at least one minute.
STORM SURGE
The high and forceful dome of
wind-driven waters sweeping along the coastline near where the eye makes
landfall or passes close to the coast.
TROPICAL STORM
WARNING
Is defined as sustained winds
within the range 39-63 miles an hour either predicted or
occurring. |