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A flood warning means that flooding is occurring or will soon happen and that people need to be cautious and alert for potential dangers. A flood watch means flooding is possible in certain areas ...
A flood warning is closely linked to the task of flood forecasting.The distinction between the two is that the outcome of flood forecasting is a set of forecast time-profiles of channel flows or river levels at various locations, while "flood warning" is the task of making use of these forecasts to make decisions about whether warnings of floods should be issued to the general public or ...
A flood warning or flash flood warning is issued when flooding is imminent or already occurring. When flood warnings are issued, it means that area waterways will likely soon be in flood. [2] Not all flood watches suggest that large-scale flooding, such as during landfalling tropical cyclones, is possible.
A flash flood warning (SAME code: FFW) is a severe weather warning product of the National Weather Service that is issued by national weather forecasting agencies throughout the world to alert the public that a flash flood is imminent or occurring in the warned area.
Examples include a digital electronic sign, a loud speaker that is part of a PA system, or a large flat panel display on a wall. A private communication device is a device that is designed to deliver a communication to one person at a time through a single process. Typically, a single person is in control of such a device which is usually not ...
A flash flood watch (SAME code: FFA; also referred as a "green box" by meteorologists) is severe weather watch product of the National Weather Service that is issued when conditions are favorable for flash flooding in flood-prone areas, usually when grounds are already saturated from recent rains, or when upcoming rains will have the potential ...
Electronic components used to make a simple water detector: battery, resistor, transistor, water sensor and piezoelectric buzzer for audible alert A water detector is an electronic device that is designed to detect the presence of water for purposes such as to provide an alert in time to allow the prevention of water leakage.
An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. Wireless Emergency Alerts (WEA), formerly known as the Commercial Mobile Alert System (CMAS) and, prior to that, as the Personal Localized Alerting Network (PLAN), [1] is an alerting network in the United States designed to disseminate emergency alerts to cell phones using Cell ...
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