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Small craft advisory pennant. A small craft advisory is a type of wind warning issued by the National Weather Service in the United States. In Canada a similar warning is issued by Environment Canada. It is issued when winds have reached, or are expected to reach within 12 hours, a speed marginally less than gale force. A Small Craft Advisory ...
[30] [31] In anticipation of the storm, the National Weather Service issued a flash flood watch for the island of Hawaii on July 20, and a small craft advisory and high surf advisory for Maui and Hawaii. [32] The Hawaii County Civil Defense opened evacuation centers, [33] while county crews cleaned out drains and culverts to prevent flooding. [34]
Small craft advisory for hazardous seas SCAH – An advisory to mariners of wave or sea conditions that are potentially hazardous to small boats because of wave height, wave period, steepness, or swell direction, even if wind speeds are expected to fall below locally defined small craft advisory criteria. Only issued by WFOs in coastal regions ...
A Hazardous Seas Warning is issued by the National Weather Service of the United States when wave heights and/or wave steepness values reach certain criteria. These criteria are defined by the local forecast office.
Feb. 26—A high surf advisory has been issued for the east shores of all isles, effective until 6 p.m. Tuesday. ... Oahu, Maui, Molokai, and Hawaii island as a moderate-sized northwest swell ...
A single red pennant was shown from the top of the tower as a small craft advisory; for a gale warning, two such pennants were used. Two square flags, red with a black square at center, indicate an approaching hurricane or winds >73 MPH. One such flag warns of storm-force winds or an approaching tropical storm.
A hurricane local statement (HLS) [1] is a weather statement produced for the public by the local Weather Forecast Offices of the National Weather Service in the U.S. for areas affected or forecast to be affected by a tropical storm or hurricane that provides an overview of the storm's local effects, including expected weather conditions, evacuation decisions made by local officials, and ...
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 ...