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Red flag warning. A red flag warning is a forecast warning issued by the National Weather Service (NWS) in the United States to inform the public, firefighters, and land management agencies that conditions are ideal for wildland fire combustion, and rapid spread. [ 1] After drought conditions or a dry season, when humidity is very low, and ...
Severe thunderstorm warning (SVR) – A severe thunderstorm is indicated by Doppler weather radar or sighted by Skywarn spotters or other persons, such as local law enforcement. A severe thunderstorm contains large damaging hail of 1 inch (2.5 cm) in diameter or larger, and/or damaging winds of 58 mph (93 km/h) or greater.
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 may also be issued when sea or ...
A "red flag warning" will be in effect Monday afternoon across the Southern High Plains into western Oklahoma, according to the National Weather Center Norman, and a "fire weather watch" is in ...
Red flag warnings are usually only issued during the spring and fall fire weather seasons, from Feb. 15 to April 30 and from Oct. 1 to Dec. 15, says the National Weather Service.
Storm warning. Storm warning flag (US) At sea, a storm warning is a warning issued by the National Weather Service of the United States when winds between 48 knots (89 km/h, 55 mph) and 63 knots (117 km/h, 73 mph) are occurring or predicted to occur soon. The winds must not be associated with a tropical cyclone. [ 1]
Misspelled Words or Bad Grammar Receiving communication that is written poorly or contains bad grammar is another red flag that 14% of respondents said tips them off to a scam.
In weather forecasting in the United States, " particularly dangerous situation " ( PDS) is enhanced wording used by the National Weather Service to convey special urgency in some watch or warning messages for unusually extreme and life-threatening severe weather events, above and beyond the average severity for the type of event.