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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
Coastal Flooding Impact
Wind Tornadoes Inland Flooding Coastal Flooding
Impacts by County from coastal flooding 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


Coastal Flooding Impacts Definitions
Read this office's detailed Hurricane Local Statement

None Threat - No discernable threat to life and property; no surge waters expected.

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

Potential Impact - Coastal flooding is not expected; impact should be negligible. Marine conditions may still be rough in exposed harbors, and minor beach erosion is possible.

Very Low Threat - A limited threat to life and property; the likelihood for storm surge and storm tide waters of 2 feet or less.

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

Potential Impact - A very low impact to communities in the specified area. Coastal flood waters capable of causing some minor overwash on exposed coastal roadways, and moderate beach erosion is possible.

Low Threat - An elevated threat to life and property; the likelihood for storm surge and storm tide waters of 2 to 4 feet.

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

Potential Impact - A low impact to communities in the specified area. Coastal flood waters capable of causing exposed coastal roads and neighborhood streets to become impassible...especially at high astronomical tide, and moderate to locally major beach erosion. Some minor damage to wood and floating dock decking. A few small craft may break moorings or drag anchor, mainly in exposed anchorages.

Moderate Threat - A significant threat to life and property; the likelihood for storm surge and storm tide waters of 4 to 6 feet.

Minimum Required Action - Prepare for the likelihood of moderate storm surge damage.

Potential Impact - A moderate impact to communities in the specified area. Coastal flood waters capable of causing major beach erosion. Several roads impassible with major coastal flooding across entire neighborhoods. Surge waters and wind waves overtopping seawalls in scattered locations to result in structural damage to a few shoreline buildings, mainly in areas directly exposed to wave action. Coastal roads and highways impassible with erosion of the road bed and causeways, especially near bridges. Minor to moderate damage to marinas, docks, and piers. Several small craft broken away from moorings, especially in unprotected anchorages.

High Threat - A critical threat to life and property; the likelihood for storm surge and storm tide waters of 6 to 8 feet.

Minimum Required Action - Prepare for the likelihood of major storm surge damage.

Potential Impact - A high impact to communities in the specified area. Coastal flood waters capable of causing widespread inundation generally up to 3 feet in depth...damaging ground floor residences and businesses. Severe beach erosion. Several sections of near-shore roads washed out and large sections of roadway inundated. Scouring surge waters and battering wind waves breaching seawalls in a few locations to result in structural damage to several buildings exposed to direct wave action. Damage accentuated by floating debris. Widespread damage to marinas, docks, and piers. Several small craft broken away from moorings, especially in unprotected anchorages.

Extreme Threat - An extreme threat to life and property; the likelihood for storm surge and storm tide waters greater than 8 feet.

Minimum Required Action - Prepare for the likelihood of extreme to catastrophic coastal flood damage.

Potential Impact - An extreme impact to communities in the specified area. Coastal flooding capable of causing widespread life-threatening inundation by sea water, completely inundating the first story of ground floor homes and businesses. Extreme beach erosion with possible washout of fill structures such as causeways or peninsulas. Several large sections of roads and highways washed out with most roadways inundated. Powerful scouring surge waters and intense battering wind waves breaching seawalls in widespread locations to result in structural damage to numerous shoreline buildings, with several washing into the sea. Damage accentuated from considerable floating debris. Extensive damage to marinas, docks, and piers. Most small craft broken away from moorings.

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