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The Realities of Hurricanes

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Local NWS Tropical Storm/Hurricane Products. Special/Severe ... with local Weather Forecast ... at the local/regional level. NATIONAL WEATHER SERVICE ... – PowerPoint PPT presentation

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Title: The Realities of Hurricanes


1
The Realities of Hurricanes
  • Robert D Macedo
  • Director of Operations of the VoIP Hurricane Net
  • ARES SKYWARN Coordinator for NWS Taunton
  • Eastern Massachusetts ARES Section Emergency
    Coordinator
  • Web www.voipwx.net
  • Email kd1cy_at_voipwx.net
  • Slides provided and heavily leveraged from NWS
    Taunton Massachusetts Realities of New England
    Hurricanes Power Point Presentation. Special
    thanks to KB1GHX-Glenn Field, NWS Taunton Warning
    Coordination Meteorologist for providing this
    presentation.

2
  • Nature's Awesome Power!

Hurricane Isabel September 2003
3
Objectives
  • What makes an active hurricane season?
  • What are the primary weather hazards we need to
    be prepared for?

4
So what makes an active season?
5
Critical component Sea Temps!
6
Warm sea temps greater potential
7
HURRICANE PREPAREDNESS
  • Before a storm threatens
  • When a storm threatens
  • Weather information sources
  • Clues to an increasing threat
  • Concluding thoughts

8
HURRICANE PREPAREDNESSBEFORE A HURRICANE
THREATENS
  • Have a storm preparedness plan (boat owners and
    home owners)
  • Means to know if a storm threatens
  • Know policies/procedures of where boat is moored
  • Know options
  • Haul boat out of water?
  • Secure in place?
  • Move to safer anchorage and secure?
  • Do you need to evacuate home?
  • Where would you go?
  • How much time to get there?
  • If going to a shelter, pet arrangements?
  • Ready access to insurance policies for boat and
    home
  • Know coverage limits and have pictures of boat
  • Know how to reach claim agents

9
PRE SEASON BOATER CHECKLIST
  • Check key phone numbers (marina, insurance agent,
    etc.)
  • Coordinated your storm preparedness plan with
    caretaker/marina
  • Batteries fully charged
  • Cleats checked
  • Chafe gear stored/labeled
  • Sufficient line
  • Suitable anchors
  • Bilge pumps, if applicable
  • Hatches water tight
  • Moorings
  • Inspected
  • Adequate for potential
  • storm surge, wind and waves

Hurricane Bob (August 19, 1991)
10
PREPAREDNESS FOR THE COASTAL HOMEOWNER
  • Find out if you are in a potential evacuation
    zone or not
  • If might have to evacuate, know where to go and
    how to get there
  • Have shutters or plywood on hand, if may need to
    protect windows
  • Know electrical, water, gas shut off valves
  • Review working condition of emergency equipment
    including flashlights and battery powered
    radios
  • Have cache of non-perishable food and water

11
COASTAL HOME PREPAREDNESS
Board up windows if sustained wind speeds may
reach 60 mph or greater
  • Use storm shutters or plywood
  • Install correctly to avoid these items becoming
    missiles
  • Do not tape windows

12
WHEN CONSTRUCTING ON THE COAST
Hurricane clips
Hurricane straps
13
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14
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15
IMPLICATIONS FOR SKYSCRAPERS
16
WHEN A HURRICANE THREATENS
  • Monitor weather developments
  • Put your plan into action
  • Allow time buffer remember major New England
    hurricanes accelerate and may arrive hours sooner
    than forecasted

17
Boat may not be only item you need to move!
  • When hurricane threatens, remember also to
  • Secure potentially dangerous items such as
    propane tanks
  • Collect/store loose objects such as lawn
    furniture, trash cans, etc.
  • Board up windows and doors if exposed to high
    winds (5/8 thick plywood)

18
OTHER PREPAREDNESS ACTIONS WHEN HURRICANE
THREATENS
  • Check supply of batteries
  • Never use candles
  • Check supply of nonperishable food and water
  • Fill-up with gas and money
  • Gas pumps and ATMs rely on power
  • Check medical prescriptions
  • Make sure you dont need to evacuate
  • Turn refrigerator to coldest setting
  • Help your neighbors
  • Including owners of boats surrounding yours
  • One bad mooring can mean disaster for many

19
AND HELP YOUR NEIGHBORS
  • On land and sea
  • For boat owners, one bad mooring can mean
    disaster for many

20
NATIONAL WEATHER SERVICE INFORMATION
21
National Hurricane Center Products
  • The National Hurricane Center issues general
    tropical updates on a routine basis 4 times per
    day
  • Tropical Weather Outlook (Issuance times changed
    to 2 AM, 8 AM, 2 PM and 8 PM EDT and is shifted
    to 1 AM, 7 AM, 1 PM and 7 PM when operating under
    standard time.)
  • A separate update known as the Special Tropical
    Disturbance Statement may also be issued.
  • This statement can be issued at any time to
    describe strong, formative weather systems that
    have not yet reached Tropical Depression status.

22
National Hurricane Center Products
  • A Standard Package of Products is issued by the
    National Hurricane Center when a Tropical Cyclone
    (Depression or higher forms) every 6 hours. Those
    products are
  • Public Advisory
  • Technical Discussion
  • Forecast/Advisory
  • Wind Speed Probabilities Product
  • The Public Advisory are issued in 3 hour
    intervals when active tropical storm/hurricane
    watches or warnings are posted for an area.
  • The public advisory is sometimes issued every 2
    hours when a powerful hurricane is within range
    of US radar.
  • When Public Advisories are issued every 2 hours,
    on the hours where no advisory is issued, a
    position estimate on the center of the hurricane
    is given based on radar.
  • A Tropical Cyclone Update is issued at any time
    in lieu of a special public advisory for changes
    in a systems intensity or changes in watches and
    warnings.

23
National Hurricane Center Products
  • As part of the Tropical Cyclone Advisory
    packages, Watches and Warnings Can be issued
  • Hurricane Watch
  • A hurricane exists and could strike the coastal
    area affected within 36 hours with hurricane
    force winds sustained at 74 MPH or greater.
  • Hurricane Warning
  • A hurricane exists and is expected to strike the
    coastal area affected within 24 hours with
    hurricane force winds sustained at 74 MPH or
    greater.
  • Tropical Storm Watch
  • Tropical Storm conditions (sustained winds 39 MPH
    or greater) could affect the coastal area
    affected within 36 hours.
  • Tropical Storm Warning
  • Tropical Storm conditions (sustained winds 39 MPH
    or greater) will affect the coastal area affected
    within 24 hours.

24
Local NWS Tropical Storm/Hurricane Products
  • There are several products issued by local NWS
    offices when a tropical system approaches, some
    of which are part of the routine products they
    typically issue.
  • Hazardous Weather Outlook
  • This product should be monitored for any type of
    hazardous weather including hurricanes and if a
    hurricane has the potential to pose a threat to
    an area. It is typically listed in this outlook.
  • Tropical Storm/Hurricane Local Statements (Issued
    every 2-4 hours)
  • Issued by local NWS Forecast Offices when
    Tropical Storm or Hurricane Watches and Warnings
    are issued for their area.
  • These statements give the storm center position,
    greater detail on storm surge/tide information,
    wind information, inland flood threat, threat for
    damaging winds in coastal and inland locations
    and any known evacuation notices.
  • Public Information Statements
  • Issued when Tropical Storm/Hurricane Watches and
    Warnings are posted with safety and terminology
    info for the public.

25
Local NWS Tropical Storm/Hurricane Products
  • Special/Severe Weather Statements
  • These will be issued as required for hurricane
    force winds and for when the strongest winds near
    the center of a hurricane make landfall.
  • Flood Watches and Warnings for rivers, streams
    and urban areas for excessive rainfall.
  • Tornado Warnings
  • Tornado Warnings are being utilized more
    frequently for any potential tornadic signatures
    on radar from outer rain bands and for when the
    eye of a hurricane makes landfall.
  • The Storm Prediction Center typically issues a
    Tornado Watch along and to the east of the center
    of a hurricane, as it in these areas that the
    threat for isolated tornadoes can occur within a
    hurricane, tropical storm and even remnant
    tropical systems.

26
NATIONAL WEATHER SERVICEWORKING AS A TEAM
  • Tropical Prediction Center/National Hurricane
    Center
  • Coordinates with local Weather Forecast Offices
  • Coordinates with emergency managers and media on
    national level
  • Issues official forecast track
  • Local Weather Forecast Offices Across the US
  • Coordinates with emergency managers and media in
    their County Warning Area.
  • Focuses on threats at the local/regional level.

27
NATIONAL WEATHER SERVICE
  • Tropical Prediction Center meteorologists are the
    specialists
  • Weather Forecast Office meteorologists are the
    general practitioners

28
WEATHER INFORMATION SOURCES
  • Internet
  • www.weather.gov
  • Click on area on map that you live in for
    information from your local office.
  • NOAA Weather Radio
  • Coast Guard transmissions
  • Commercial sources

29
TROPICAL CYCLONE DEFINITIONS
  • TROPICAL DEPRESSION Organized system with
    maximum sustained winds less than 34 knots
    (39 mph)
  • TROPICAL STORM Well defined circulation with
    maximum sustained winds 34 63 knots (39 to 73
    mph)
  • HURRICANE Sustained winds of 64 knots (74 mph)
    or higher

30
HURRICANE CATEGORIESSaffir-Simpson Scale
  • Category 1 sustained winds 74 to 95 mph
  • Edouard in 1996 (Labor Day Weekend), Gloria in
    1985, Alex in 2004, Humberto in 2007
  • Category 2 sustained winds 96 to 110 mph
  • Bob in August 1991
  • Category 3 sustained winds 111 to 130 mph
  • 1938 Hurricane, 1944 Hurricane, Carol (1954),
    Edna (1954), Katrina (2005 landfall on Gulf
    Coast), Rita (2005 landfall in Texas/Louisiana
    border)
  • Category 4 sustained winds 131 to 155 mph
  • Hugo (1989), Ivan (2004 landfall in the Florida
    Panhandle)
  • Category 5 sustained winds gt 155 mph
  • 1935 Keys Hurricane, Camille (1969), Andrew
    (1992), Dean (2007), Felix (2007)
  • Peak intensities of Ivan, Katrina, and Rita were
    Category 5 systems over the open waters.

31
Key on approach of first tropical storm force
squalls not the eye!
32
ALLOW FOR FORECAST ERROR!
33
SITUATIONAL AWARENESS?
34
Do not even think about staying with your boat
during a tropical storm or hurricane
unless you own a very large vessel and plan to
put out to sea
35
CONCLUDING THOUGHTS
  • History gives us a clue to what can happen, but
    our experience can be misleading

36
While we should enjoy the tremendous beauty of
our coastline
37
Natural Calamity Strikes At About The Time When
One Forgets Its Terror!
  • ...Japanese Proverb

38
  • Thank you!

Rob Macedo (KD1CY) Web www.voipwx.net Email
kd1cy_at_voipwx.net Director of Operations of the
VoIP Hurricane Net ARES SKYWARN Coordinator for
NWS Taunton Eastern Massachusetts ARES Section
Emergency Coordinator
Hurricane Isabel September 2003
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