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  Home > Experimental Tropical Cyclone Hazards Graphics > Tropical Cyclone Impact
Note: This is a summary graphic depicting the impacts expected over the full duration of the storm from this hazard. Detailed forecast products providing times, durations, and numerical forecasts associated with this hazard are provided at this WFO's web page:

Key West, Florida
Wind Impact
Wind Tornadoes Inland Flooding Coastal Flooding
Impacts by County from wind for the NWS Key West, Florida warning area
 
None
 
Very Low
 
Low
 
Moderate
 
High
 
Extreme
Alabama
Mobile

Florida
Jacksonville
Key West
Melbourne
Miami
Pensacola
Tallahassee
Tampa Bay

Louisiana
Lake Charles

Maryland
Baltimore/Washington

New Jersey
Mount Holly

New York
New York City/Upton

North Carolina
Newport/Morehead City
Wilmington

Pennsylvania
Philadelphia

South Carolina
Charleston

Texas
Brownsville
Corpus Christi

Virginia
Wakefield

Washington, DC
Baltimore/Washington


Wind Impacts Definitions
Read this office's detailed Hurricane Local Statement

None Threat - No discernable threat to life and property; sustained winds to remain below tropical storm-force, but conditions may be hazardous for small craft operators.

Minimum Required Action - Evaluate personal and community disaster plans and ensure seasonal preparedness activities are complete.

Potential Impact - Wind damage is not expected; impact should be negligible.

Very Low Threat - A limited threat to life and property; the likelihood for sustained tropical storm-force winds of 39 to 57 mph.

Minimum Required Action - Prepare for the likelihood of minor wind damage.

Potential Impact - A very low impact to communities within the specified area. Winds capable of causing minor damage to carports and awnings. Some damage to unanchored mobile homes. Small branches break off trees and loose objects are blown about. Winds becoming dangerous on bridges and causeways, especially for high profile vehicles. Isolated power outages affecting individual neighborhoods or islands possible.

Low Threat - An elevated threat to life and property; the likelihood for strong tropical storm-force winds (58 to 73 mph).

Minimum Required Action - Prepare for the likelihood of minor to locally moderate wind damage. Shuttering of windows and glass doors may be required to minimize damage caused by wind-blown debris.

Potential Impact - A low impact to communities in the specified area. Winds capable of causing damage to unanchored mobile homes, porches, carports, awnings and with some shingles and small portions of roofing blown off. Some poorly constructed signs damaged. Large branches break off trees, but several shallow-rooted and diseased trees blown down. Some large trees uprooted if heavy rainfall occurs. Loose objects are easily blown about and become dangerous projectiles. Winds dangerous on bridges and causeways, especially for high profile vehicles. Scattered power outages, effecting entire neighborhoods and possibly several islands.

Moderate Threat - A significant threat to life and property; the likelihood for hurricane-force winds (74 to 95 mph) of Category 1 intensity.

Minimum Required Action - Prepare for the likelihood of moderate wind damage, including shuttering windows and doors.

Potential Impact - A moderate impact to communities within the specified area. Winds capable of causing significant damage to mobile homes, especially if unanchored. Some damage to unshuttered windows and doors, and fences. Some damage to shingles, tiles and other roof coverings, with some loss of roof decking on older buildings. Several large signs and trees blown down, especially shallow-rooted and diseased trees. Several large trees uprooted if heavy rainfall occurs. A few streets may become impassible due to large debris. Some wire-mounted traffic signals may fall. Scattered power outages affecting several islands likely, with possible temporary outages affecting large sections of the Keys. Damage is consistent with that realized by winds of Category 1 strength on the Saffir-Simpson Scale.

High Threat - A critical threat to life and property; the likelihood for strong hurricane-force winds (96 to 110 mph) of Category 2 intensity.

Minimum Required Action - Prepare for the likelihood of major wind damage, including shuttering windows and doors.

Potential Impact - A high impact to communities within the specified area. Winds capable of causing significant damage to roof decking, shingles and tiles, and especially unshuttered windows and doors. Some structural damage can be espected on older frame homes, commercial buildings and warehouses. Considerable damage to mobile homes with many mobile homes sliding or overturning and older mobile homes completely destroyed . Many large signs and trees blown down or snapped. Some roads impassible due to large debris. Several wire-mounted traffic signals downed with some damage to pole-mounted signals. Widespread power outages throughout the Keys likely with some wooden utility poles snapped. Some street lights and may become bent.

Extreme Threat - An extreme threat to life and property; the likelihood for major hurricane-force winds (greater than 110 mph) of Category 3, 4, or 5 intensity.

Minimum Required Action - Prepare for the likelihood of extreme to catastrophic wind damage. Shuttering of windows and doors is required.

Potential Impact - An extreme impact to communities within the specified area. Winds capable of causing structural damage to especially frame homes and commercial buildings, some with complete wall and roof failures. Some major damage to roof structure and coverings on reinforced concrete block structures. Complete destruction of mobile homes. Numerous large signs and trees blown down. Many roads impassible due to large debris. Widespread power outages throughout the Keys with numerous traffic signals and street lighting damaged or destroyed. Some major damage possible to communications towers. Damage is consistent with that realized by winds of Category 3, 4, or 5 strength on the Saffir-Simpson Scale.

Wind
Click for wind impacts for the NWS Key West, Florida warning area
Tornadoes
Click for tornado impacts for the NWS Key West, Florida warning area
Inland Flooding
Click for inland flooding impacts for the NWS Key West, Florida warning area
Coastal Flooding
Click for coastal flooding impacts for the NWS Key West, Florida warning area
None Very Low Low Moderate High Extreme
 

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     Page last Modified: 8 June, 2009 11:45 AM