Title: Hurricane Presentation
1Hurricane Presentation
2What is a Hurricane?A hurricane is a type of
tropical cyclonean organized rotating weather
system that develops in the tropics. Hurricanes
rotate counterclockwise in the Northern
Hemisphere. Tropical cyclones are classified as
followsTropical DepressionAn organized system
of persistent clouds and thunderstorms with a
closed low-level circulation and maximum
sustained winds of 38 mph (33 knots) or
less.Tropical StormAn organized system of
strong thunderstorms with a well defined
circulation and maximum sustained winds of 39 to
73 mph (34-63 knots). HurricaneAn intense
tropical weathersystem with a well defined
circulation and sustained winds of 74 mph (64
knots) or higher. In the western North Pacific,
hurricanes arecalled typhoons, and similar in
the IndianOcean are called cyclones.
3Dr. Gray's ATLANTIC BASIN SEASONAL HURRICANE
FORECAST FOR 2013
Average Predicted
1981-2010 2013
Named Storms 12 13-20
Hurricanes 6 7-11
Major Hurricanes 3 3-6
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53 major hurricanes struck GA coast in the 1890s
6Oct 1898 Georgia Hurricane
- Landfall near Brunswick as a Cat. 4 with max
winds of 135 mph - 180 dead 56.5 million in damage (2004 dollars)
- Max storm surge was 13-18 ft. in Darien
http//www.srh.noaa.gov/jax/research/hurricanes/hi
story/1898/
7Risks to Coastal Georgia
- 3 major landfalls in the 1890s (but none since
1900) - Potential for big storm surge owing to shallow
shelf - Barrier islands at extra risk associated with sea
level rise -
8 Impacts of floods
- Immediate impacts property damage, injuries,
death - Health issues infectious diseases, exposure to
toxins - Key water quality issues
- Floodwater tainted with raw
- sewage, pesticides, agricultural
- waste, petroleum products,
- dead animals
- Flooding of animal waste
- retention pools from hog,
- cattle, dairy, poultry farms
Hurricane Frances (2004) caused 41M damage to
Atlanta from flooding
9Case Study Hurricane Ivan (2004)
From National Climatic Data Center Satellite
Archives
- Category 3 hurricane that made landfall just
west of Gulf Shores, AL - Produced 25 tornadoes in GA resulting in 2
deaths and 10 injuries. - Rainfall in excess of 5 to 10 in. and high winds
destroyed 50 pecan and 15 cotton crop in GA. - Property damage in GA 68.8 M.
10Hurricane Risks to Georgia
- While no major hurricane strikes since 1900,
increases in of Atlantic storms increases the
probability of a GA landfall - Landfall on GA coast has potential for big storm
surge - owing to shallow shelf
- Barrier islands at extra risk associated with sea
level rise - Heavy rainfall associated with storms that make
landfall - in the Gulf rainfall in hurricanes is
expected to increase - Tornadoes likely to be spawned in
GA by increasingly intense
storms that
make landfall in the Gulf -
112011 Storm Tracks
122012 Storm Tracks
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14Hurricane Watch
A Hurricane Watch is Issued for a Coastal Area
When There is a Threat of Hurricane
Conditions Within 24 - 36 Hours
Check often for official bulletins on radio, TV,
or NOAA Weather Radio. Fuel car. Check mobile
home tie-downs. Moor small craft or move to safe
shelter. Stock up on canned provisions. Check
batteries for radio and flashlights. Secure lawn
furniture and other loose material
outdoors. Board or shutter windows to prevent
shattering. Wedge sliding glass doors to prevent
their lifting from their tracks.
15(Continued)
- Stayed turned to radio, TV, or NOAA Weather Radio
for official bulletins - Stay home if sturdy and on high ground Board up
garage and porch doors - Move valuables to upper floors
- Bring in pets
- Fill containers (bathtub) with several days
supply of drinking water - Turn up refrigerator to maximum cold and don't
open unless necessary - Use phone only for emergencies
16(Continued)
- Stay indoors on the downwind side of house away
from windows - Beware of the eye of the hurricane
- Leave mobile homes
- Leave areas which might be affected by storm tide
or stream flooding - Leave early in daylight if possible
- Shut off water and electricity at main stations
- Take small valuables and papers but travel light
- Have food and water for pets (shelters will not
take them) - Lock up house
- Drive carefully to nearest designated shelter
using recommended evacuation routes
17In the event an evacuation order is necessary for
any area of Bryan County local radio as well as
television station will be utilized to make this
announcement.
18Georgia Broadcast Radio will broadcast evacuation
and other emergency Information over Georgia
Broadcast Radio stations. Since these
stations are all over the state, you can receive
emergency information just about anywhere.
ALBANY 91.7 ATHENS
91.7 / 97.9 AUGUSTA 90.7
BRUNSWICK 89.1 CARROLLTON
90.7 COLUMBUS
88.1 DAHLONEGA
89.5 DEMOREST
88.3 FORT GAINS
90.9 MACON
89.7 SAVANNAH
91.1 TIFTON
91.1 VALDOSTA
91.7 WAYCROSS
90.1
19 Anyone with a computer, who has on-line
capabilities, may receive up to the minute
information from a number of Internet Weather
Services. These listed here are the most popular.
- www.srh.noaa.gov/jax/index.shtml
- www.weather.com
- http//www.nhc.noaa.gov/
20EVACUATION
- Tropical Cyclones pose a significant threat to
the State of Georgia. - The Decision to evacuate rest with the Chairman
of the Bryan County Commissioners
21Evacuation Clearance Time
- The maximum clearance time for Southern Bryan
County during high occupancy time is 18 hours. - Evacuations should be completed PRIOR to the
onset of Tropical Storm Force Winds.
22- All Counties along the Georgia Coast employ a
phased approach to evacuations and include - Voluntary-Partial Tropical Storm
- Voluntary-Full Category 1 2 Storms
- Mandatory Partial Category 3-5 Storms
- Mandatory Full Category 3-5 Storms
- Radio, TV and loud speakers from law enforcement
vehicles will all be utilized in announcing an
evacuation order
23"An Evacuation Order has been issued for Bryan
County"
24Evacuation Routes
- Persons leaving Bryan County Should follow the
following pre-designated routes - From North Bryan
- US 280 to US 341 to I-75
- From South Bryan
- SR 144 to Glennville to Reidsville
- turn left on US 280 to US 341 to I-75
25Go West Leave Early
Leaving North Bryan and City of Pembroke Hwy
280 west to US 341 to I-75 Leaving South Bryan
County and the City of Richmond Hill Hwy 144
West through Ft. Stewart to Glennville and then
take Hwy 23 to Reidsville. Continue West on Hwy
280 to US 341 to I-75
26EVACUATE EARLY Leave when asked to do so
27THIS IS WHY WE PREPARE. (Hurricane Wilma in
comparison to GA)
28Re-Entry Plan
A phased approach to re-entry is designed to
allow only those personnel involved in a response
access to impacted areas and is a necessity due
to safety concerns. Phase 1 consists of
entering affected areas to conduct damage
assessments and to allow critical work force
entry to conduct facilities assessments. When
impacted areas are deemed safe for public entry,
citizens who present evidence of business
ownership or residency in affected areas will be
allowed entry. Officials and residents should
be reminded that the time between Phase 1 and
Phase 2 could be several days.
29Phase I
- Phase 1 - State Local Authorized Re-entry
- Response Level 1 (Emergency Crew Entry)
- Aerial reconnaissance will be used to delineate
affected areas. This will be coordinated by GEMA
using a Mobile Communications Vehicle (MCV)
through the Evacuation and Re-Entry Branch (ERB)
located in Jesup. - While affected areas are being determined,
emergency response crews will depart staging
areas along pre-designated re-entry routes to
clear a path into the affected areas. - Construction personnel and bridge crews will
conduct damage assessments of roads and bridges.
Information on areas deemed safe for travel will
be relayed to the ERB to coordinate the
multiagency response. - Once damaged roads are repaired and re-entry
routes and bridges are deemed safe for travel,
Response Level 2 will be initiated.
30Phase I Response Level 2 Continued
- No citizens or property owners will be readmitted
until the following objectives have been met - Utility items have been surveyed and deemed to be
safe, passable, or operational. - Natural gas, water, sewer and electric lines must
be surveyed for damage and checked for possible
breaks. - Water lines must have adequate pressure and
present no health risks from raw sewage
contamination. - Downed power lines that pose safety or health
problems to residents must be removed. - The structural integrity of bridges and
overpasses to provide routes for county public
works and transportation crews must be determined
to be safe and structurally sound. - Critical portions of the transportation network
must be cleared of as much debris as possible or
deemed to be safe for vehicular traffic in
damaged areas.
31Phase II
- Phase 2 - Limited Public Re-entry
- After the impacted areas have been secured by
local officials and deemed safe for access,
citizens who present evidence of business
ownership or residency in the impacted areas will
be allowed entry. - Re-entry access may be terminated at any time.
- During the early portions of phase 2, a curfew is
likely to be imposed to citizens entering
impacted areas.
32Re-entry Routes
- Once tropical storm force winds have subsided,
re-entry operations begin. GDOT has
pre-identified re-entry routes for operations.
Tropical cyclones threaten the state from
landfalls along either the Atlantic or Gulf
Coasts. Therefore, sets of reentry routes have
been pre-identified for both threats. Table 3
below presents reentry routes for an Atlantic
Coast threat. - Re-entry routes for an Atlantic Coast threat.
- 1-16 to 1-95 Metter to Savannah
- SR 129 to US 280 to SR 30/SR 204 Metter
to Claxton to Pembroke to Savannah - SR 129 to US 280 to US 301 to SR 144
Metter to Richmond Hill - SR 121 to SR 21
Millen to Savannah - SR 121 to US 80
Metter to Statesboro to Savannah - SR 129 to US 280 to US 301 to SR 57 to 1-95
Metter to Claxton to Glennville to
Ludowici - SR 129 to US 280 to US 301 to SR 196 to US 84 to
195 Metter to Claxton to
Glennville to Hinesville - SR 520 Waycross to Brunswick
- US 1 to US 40 Waycross to Folkston to
St. Marys - US 84 to SR 32 to SR 99 to US 341 US 84 to US 341
Waycross to Patterson to Sterling to
Brunswick
33What to Expect
- Depending on the track and intensity of the Storm
you should prepare for wide spread damage. - There may not be any place to buy food, gas, etc.
- Commodities (ice, water and MREs) will be
distributed at pre-determined Points of
Distribution or PODs - The parking lot at Kroger is designated as a POD
but could change depending on extent of damage. - POD Location will be announced as you enter
through the re-entry points
34Safety First
- Please remember that your safety is foremost
the most important thought during this time.
Depending on the extent of damage it could be
days to weeks before you are allowed back into
the area. - It is our desire to return our community to
normal as quickly as possible so we ask that you
be patient should we be faced with this type of
disaster.
35HURRICANE PREPAREDNESS EFFORTS FOR 2013
36Category 1 Storm Surge
37Category 2 Storm Surge
38Category 3 Storm Surge
39Category 4 Storm Surge
40Category 5 Storm Surge
41Any Questions?