Storm Surge in the Florida Keys - Governor’s Hurricane ...flghc.org/ppt/2014/Workshops/WS139 Local...

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http://weather.gov Local Storm Surge Considerations: Florida Keys Jon Rizzo Warning Coordination Meteorologist National Weather Service Florida Keys 1315 White Street, Key West, FL 33040 (305) 295-1316 x223 [email protected] http://weather.gov/keywest Examining the role of a complex coastline in storm surge evolution

Transcript of Storm Surge in the Florida Keys - Governor’s Hurricane ...flghc.org/ppt/2014/Workshops/WS139 Local...

Page 1: Storm Surge in the Florida Keys - Governor’s Hurricane ...flghc.org/ppt/2014/Workshops/WS139 Local Storm Surge/2014-FLGHC-TS23... · …in the Florida Keys •“The coral reef

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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

[email protected]

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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Page 4: Storm Surge in the Florida Keys - Governor’s Hurricane ...flghc.org/ppt/2014/Workshops/WS139 Local Storm Surge/2014-FLGHC-TS23... · …in the Florida Keys •“The coral reef

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

[email protected]

http://weather.gov/keywest

Examining the role of a complex

coastline in storm surge evolution