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A river flood advisory is issued by the National Weather Service of the United States when minor flooding at formal forecast points with river gaging sites and established flood stages is possible. Flooding may have many causes, such as heavy rain in the vicinity of the river, melting snow or ice jams .
The following is an example of a river flood watch issued by the National Weather Service office in Seattle, Washington. [2]ZCZC SEAFFASEW WGUS66 KSEW 151139 URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE SEATTLE WA 339 AM PST THU NOV 15 2007 ...THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A FLOOD WATCH FOR THE FOLLOWING RIVERS IN WESTERN WASHINGTON...
The U.S. National Weather Service issued flood warnings for Skagit and Whatcom counties, and high wind warnings for most of northwestern Washington. [ 11 ] [ 12 ] Three more atmospheric river events were scheduled to impact southern British Columbia and northwestern Washington state with the first arriving November 24, 2021 and the final event ...
The Washington state's transportation department warned motorists to be cautious while on roadways as downed trees and weather conditions slowed traffic across the state.
Heavy rain caused widespread flooding along the Snoqualmie River in Washington state on Tuesday, October 22, local media reported.A flood warning was extended until the evening of Wednesday ...
There is a flood watch in effect from 11 a.m. June 2 until 11 a.m. June 5, according to the National Weather Service. The following counties are affected: Pierce, Mason, King, Snohomish and Skagit.
Flood watch FLA: Issued as either a Flood Watch or a River Flood Watch. Indicates that flooding is possible in and close to the watch area. Those in the affected area are urged to be ready to take action if a flood warning is issued or flooding is observed. Flood warning FLW: Issued as either a Flood Warning or a River Flood Warning.
A watch does not mean that flooding is occurring, only that weather conditions have created or will create a significant risk for it. If flooding occurs, a flood warning or flash flood warning would be issued, and immediate action should be taken. A flood warning or flash flood warning is issued when flooding is imminent or already occurring.