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Particularly dangerous situation flash flood warning FFW – Issued within the initial flash flood warning or as a complete re-issuance of the previously issued warning, this indicates widespread, life-threatening flash flooding—caused by excessive rainfall, ice jams or imminent dam failures—has been indicated by Doppler weather radar ...
A weather warning generally refers to an alert issued by a meteorological agency to warn citizens of approaching dangerous weather.A weather watch, on the other hand, typically refers to an alert issued to indicate that conditions are favorable for the development of dangerous weather patterns, although the dangerous weather conditions themselves are not currently present.
The warning is issued just prior to when the strongest winds of the eyewall are expected to impact an area. [9] The warning is to be issued for the smallest area possible, and be valid for times of two hours or less. [9] It was developed in response to confusion resulting from the landfall of Hurricane Katrina.
A tornado warning means “a tornado is imminent.” If a tornado warning is issued, you need to take shelter immediately. ... floods that are “caused by heavy or excessive rainfall in a short ...
Local Weather Forecast Offices (WFO) of the National Weather Service may issue a Special Weather Statement to alert of a specified hazard that is approaching or below warning or advisory criteria, that does not have a specific alert product code of their own (such as for widespread funnel clouds with limited to no threat of complete tornadogenesis, the likelihood of landspouts, or strong ...
A watch or warning bearing the phrase is referred to as a PDS watch or PDS warning. First used by the Storm Prediction Center (SPC), a national guidance center of the National Weather Service , for tornado watches , the phrase was later applied to other severe weather watches and warnings by the agency's regional forecast offices.
On Thursday, a yellow warning for the North East ... Parts of the UK saw more than the monthly average rainfall on Monday, with the wettest place – South Newington in Oxfordshire – seeing 111 ...
The terms "blue box" and "yellow box," often used in parlance within the meteorological community, refer to the coloring assigned to severe thunderstorm watch boxes for hazard maps used by the Storm Prediction Center and the National Weather Service; coloring used by local television outlets to highlight severe thunderstorm watches sometimes ...