Acronyms: F's

F scale	See Fujita Scale.
F	Fahrenheit
FA	Aviation Area Forecast
FAA	Federal Aviation Administration
FAH	Fahrenheit
FAM	Familiar
FAX	Facsimile transmission
+FC	Funnel cloud (tornado or waterspout)
FCEXEC	A component of the NWSRFS FCST Program.
FCST	Forecast
FCSTD	Forecasted
FCSTG	Forecasting
FCSTR	Forecaster
FCSTS	Forecasts
FDR	Fire Danger Rating
FEB	February
FEMA	Federal Emergency Management Agency
FEW	Few
FFA	Flood or Flash Flood Watch
FFG	Flash Flood Guidance
FFS	Flash Flood Statement
FFW	Flash Flood Warning
FG	Fog
FIC	Flight information center
FIG	Figure
FILG	Filling
FIR	Flight information region
FIRAV	First available
FIS	Flight information service
FL	Flight level or Florida
FLD	Field
FLG	Flashing or Falling
FLN	National Flood Summary
FLRY	Flurry
FLRYS	Flurries
FLS	River Flood Statement
FLT	Flight
FLUC	Fluctuating or fluctuation or fluctuated
FLW	River Flood Warning, follow(s) or following
FLWG	Following
FLY	Fly or flying
FM	From
FMT	Format
FNCTN	Function
FNT	Front
FNTGNS	Frontogenesis
FNTL	Frontal
FNTLYS	Frontolysis
FNTS	Fronts
FORNN	Forenoon
FOS	Family of Services
FOS	Family of Services
FPM	Feet per minute
FPO	Flood Potential Outlook
FQT	Frequent
FQTLY	Frequently
FREQ	Frequency
FRI	Friday
FRM	Form
FRMG	Forming
FRMN	Formation
FRONT	Front (relating to weather)
FROPA	Frontal passage
FROSFC	Frontal surface
FRQ	Frequent
FRST	Frost
FRWF	Forecast wind factor
FRZ	Freeze
FRZG	Freezing
FRZN	Frozen
FST	First
FT	Feet (dimensional unit) or Terminal forecast
FTHR	Further
FTP	File Transfer Protocol
FU	Smoke
FVRBL	Favorable
FWD	Forward
FYI	For your information
FZ	Freezing
FZDZ	Freezing drizzle
FZFG	Freezing fog
FZRA	Freezing rain

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