Storm Surge in the Florida Keys - Governor’s Hurricane ...flghc.org/ppt/2014/Workshops/WS139 Local...
Transcript of Storm Surge in the Florida Keys - Governor’s Hurricane ...flghc.org/ppt/2014/Workshops/WS139 Local...
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vLocal Storm Surge Considerations:
Florida Keys
Jon RizzoWarning Coordination Meteorologist
National Weather Service – Florida Keys
1315 White Street, Key West, FL 33040
(305) 295-1316 x223
http://weather.gov/keywest
Examining the role of a complex
coastline in storm surge evolution
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4 Rules Not to Live By……in the Florida Keys
• “The coral reef protects us from damaging storm surge.”
• “The storm surge flooding is worst when the winds and weather are the worst .”
• “Storm surge only comes from the
[ ocean / bay ] side!”
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Bathymetry of the Florida Keys Coastal Waters(meters)
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1935 – The Labor Day Hurricane
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1935 “Labor Day” Hurricane
Max. Envelope of Water
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Category 5 – Northwest 15 mph
MEOW
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1935 Storm Surge
• Maximum Water Levels 20 to 25 feet
• Calculated Storm Surge plus Wave Set
yields 18.7 feet at Lower Matecumbe Key
• Shoreline wave height and wave run-up
may be significant in very small, intense
hurricanes
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Hurricane Wilma - 2005
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KEY WEST, FLORIDA
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VACA KEY (MARATHON, FLORIDA)
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Key West Elevation Map
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Key West Inundation Estimate
3:00 AM EDT
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Wilma – October 24, 2005
3:00 AM to 5:00 AM EDT
Key West Airport
Flooded…phone lines
out to weather sensors
Storm Tide 4.5 feet
inundates south half of
“New Town” Key West
Category One
Hurricane Force
Winds from Key
West to Marathon
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Key West Inundation Estimate
7:00 to 9:00 AM EDT
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Wilma – October 24, 2005
7:00 through 9:00 AM EDTRain ends…and winds
now below Tropical
Storm Force in Key
West…
…good weather for
photographs?
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Wilma – October 24, 2005
1100 AM EDTWaters begin to recede
in Key West…
…but severe flooding
from the north shore is
occurring 50 miles up
the road in Marathon
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Wilma – October 24, 2005
100 PM EDTFlooding abating in
Key West… but U.S. 1
flooded for 21 miles
from Marathon to
Conch Key
U.S. 1 begins to flood
at the
“18-Mile Stretch”
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vLocal Storm Surge Considerations:
Florida Keys
Jon RizzoWarning Coordination Meteorologist
National Weather Service – Florida Keys
1315 White Street, Key West, FL 33040
(305) 295-1316 x223
http://weather.gov/keywest
Examining the role of a complex
coastline in storm surge evolution