red flag warning

Meanings

nounred flag warning (plural red flag warnings)

USclimatologyA warning issued by the United States National Weather Service that conditions are ideal for wildfires.
During red flag warnings, firefighting agencies will alter their staffing and equipment resources dramatically to accommodate the increased forecast risk.
2014, Jeffery Sims, The No-Nonsense Guide to Heat Wave, Drought, & Hot Weather Safety
Synonyms: Red Flag

nounA warning issued by the United States National Weather Service that conditions are ideal for wildfires.

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APA

red flag warning. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/red%20flag%20warning

MLA

“red flag warning.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/red%20flag%20warning. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “red flag warning,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/red%20flag%20warning.