However, even though this type of flooding develops more slowly than flash flooding, it can still be a threat to life and property. The flooding normally occurs more than six hours after the rainfall begins, and may cover a large area. Don’t Drown.” It is important to avoid roadways covered with water as it only takes about 12″ of standing to completely sweep a car/SUV off the road.Īnother common flood product, that might cause more confusion is the Areal Flood Warning.Īccording to the National Weather Service, an Areal Flood Warning is issued for flooding that develops more gradually, usually from prolonged and persistent moderate to heavy rainfall. This results in a gradual ponding or buildup of water in low-lying, flood prone areas, as well as small creeks and streams. What you need to do: If a flash flood warning is issued and you are driving, avoid low lying areas, or places that have ponding on the roadways. Dangerous flooding in areas near creeks and streams, as well as low-lying flood prone areas, develops very quickly and is a significant threat to life and/or property, according to the National Weather Service. Flash floods are the number one weather-related causes of death, with over half of these deaths happening as a result of a vehicle-related drowning. These happen quickly and can lead to death. An advisory indicates conditions pose a significant inconvenience, and if caution is not exercised, could lead to situations that may threaten life and/or property.įlash Flood Warning – These warnings are issued when a heavy rain occurs, generally within a short amount of time. Warnings require immediate action, as any type of weather warning means that the weather danger is imminent. Here is a quick explanation of two common flood products we have here in Alabama and what they mean.įirst, we’ll start with warning vs advisory. ( WIAT) - There are several flood products and it may be hard to know what to do when a flood alert goes off for your community, or even know what each product means. From our CBS 42 Storm Team Tower cam in Bluff Park, at Tip Top Grill.īIRMINGHAM, Ala. It does not mean flooding will occur, but it is possible.Heavy rain moving into Hoover. A Flood Watch is issued when conditions are favorable for flooding. However, it may cause significant inconvenience, and if caution is not exercised, it could lead to situations that may threaten life and/or property.įlood Watch: Be Prepared: A Flood Watch is issued when conditions are favorable for a specific hazardous weather event to occur. A Flood Advisory is issued when flooding is not expected to be bad enough to issue a warning. A Flood Warning is issued when flooding is imminent or occurring.įlood Advisory: Be Aware: An Flood Advisory is issued when a specific weather event that is forecast to occur may become a nuisance. Read the factsheet.įlood Warning: Take Action! A Flood Warning is issued when the hazardous weather event is imminent or already happening. It is even possible to experience a flash flood in areas not immediately receiving rain.įlash Flood Warnings are changing to an Impact-Based format to improve public response. A flash flood is a sudden violent flood that can take from minutes to hours to develop. If you are in a flood prone area move immediately to high ground. What is the difference between a Flood Watch and a Flood Warning issued by the National Weather Service?įlash Flood Warning: Take Action! A Flash Flood Warning is issued when a flash flood is imminent or occurring.
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