Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage
National Oceanic and Atmospheric Administration's   
  Select to go to the NWS homepage
National Weather Service   
 
 
Local forecast by
"City, St"
USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.
  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:

Mobile/Pensacola, Alabama/Florida
Inland Flooding Impact
Wind Tornadoes Inland Flooding Coastal Flooding
Impacts by County from inland flooding for the NWS Mobile/Pensacola, Alabama/Florida warning area
 
None
 
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


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

Inland Flooding impacts:
The Inland Flooding impacts detailed in this WFOs Inland Flooding Graphics are not associated with riverine flooding. Specific river observations and river stage forecasts in this WFO's area of responsibility are available from their Advanced Hydrologic Prediction Service (AHPS) web site, at: Mobile/Pensacola, Alabama/Florida
None Threat - No discernible threat to life and property; the likelihood for higher rain totals to remain below flash flood guidance.

Minimum Action - Listen for forecast changes; review flooding safety rules.

Potential Impact - None expected heavy rain may still occur.

Low Threat - An elevated threat to life and property; the likelihood for higher rain totals to be around flash flood guidance.

Minimum Action - Prepare for the likelihood of damage consistent with minor inland flooding.

Potential Impact - A low impact to communities within the specified area. Isolated to scattered locations may experience minor inland flooding.

Moderate Threat - A significant threat to life and property; the likelihood for higher rain totals to exceed flash flood guidance.

Minimum Action - Prepare for the likelihood of damage consistent with moderate inland flooding.

Potential Impact - A moderate impact to communities within the specified area. Isolated locations may experience moderate inland flooding, among scattered locations of minor flooding.

High Threat - A critical threat to life and property; the likelihood for higher rain totals to well exceed flash flood guidance.

Minimum Action - Prepare for the likelihood of damage consistent with major inland flooding.

Potential Impact - A high impact to communities within the specified area. Isolated locations may experience major inland flooding, among scattered locations of minor to moderate inland flooding.

Extreme Threat - An extreme threat to life and property; the likelihood for higher rain totals to greatly exceed flash flood guidance.

Minimum Action - Prepare for the likelihood of damage consistent with very major inland flooding.

Potential Impact - An extreme impact to communities within the specified area. Scattered locations may experience major inland flooding, among many locations of minor to moderate inland flooding.

Minor Flooding — Within 6 hours after heavy rain, small streams, creeks, canals, and drainage ditches become swollen and overflow in a few places. In flatter terrain, quick ponding of water occurs around low-lying spots, especially in historically vulnerable locations. In urban places, quick ponding of water occurs at certain underpasses or poor drainage spots, especially in historically vulnerable locations. Storm drains and retention ponds become near-full and begin to overflow in a few places. In mountain areas, runoff moves down the valley and is becoming a concern, especially in river valleys. Flood waters generally affect a few buildings and roads.

Moderate Flooding — Within 6 hours after heavy rain, rivers and tributaries become swollen and may begin to overspill their banks in a few places, especially in historically vulnerable locations. Small streams, creeks, canals, and drainage ditches overflow. Normally dry gullies or dry creek beds become alive. In flatter terrain, expanded areas of rapid inundation occur around low-lying spots covering several secondary roads. In urban places, expanded areas of rapid inundation occur at several underpasses or poor drainage spots, with some streets and parking lots taking on moving water. Storm drains and retention ponds overflow. In mountain areas, considerable runoff moves fast down the valley washing out some roads, especially in river valleys. Hillsides vulnerable to erosion become a concern for mudslides. Flood waters generally affect several buildings and roads.

Major Flooding — Within 6 hours after heavy rain, rivers and tributaries overflow their banks in several places. Small streams, creeks, canals, and drainage ditches become dangerous rivers. Normally dry gullies or dry creek beds become alive with dangerous and fast moving water. In flatter terrain, extensive inundation occurs covering both primary and secondary roads. In urban places, widespread inundation with streets and parking lots becoming rivers of moving water. In mountain areas, destructive runoff moves fast down the valley washing out everything in its path, especially in river valleys. Hillsides vulnerable to erosion give way to mudslides. Flood waters generally affect many buildings and roads.

Wind
Click for wind impacts for the NWS Mobile/Pensacola, Alabama/Florida warning area
Tornadoes
Click for tornado impacts for the NWS Mobile/Pensacola, Alabama/Florida warning area
Inland Flooding
Click for inland flooding impacts for the NWS Mobile/Pensacola, Alabama/Florida warning area
Coastal Flooding
Click for coastal flooding impacts for the NWS Mobile/Pensacola, Alabama/Florida warning area
None Low Moderate High Extreme
 

    US Dept of Commerce
    National Oceanic and Atmospheric Administration
    National Weather Service
    1325 East West Highway
    Silver Spring, MD 20910
    Page Author: NWS Internet Services Team
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities
     Page last Modified: 8 June, 2009 11:45 AM