Weather Codes

BCFG — patchy fog

BLSN — blowing snow

BR — mist (vis 5/8 SM or more)

DRDU — drifting dust

DRSA — drifting sand

DRSN — drifting snow

DU/BLDU — dust/blowing dust

DS — duststorm

DZ/FZDZ — drizzle/freezing drizzle

FC — funnel cloud

+FC —tornado/waterspout

FG — fog (vis < 5/8 SM)

FU — smoke

FZFG — freezing fog

FZRA — freezing rain

GR — hail (approx. 1/4” dia or more)

GS — small hail/snow pellets

HZ — HZ

IC — ice crystals

MIFG — shallow fog

PL/SHPL — ice pellets/showers

PO — well developed dust/sand whirls

PRFG — patchy fog on part of airport

PY — spray

RA/SHRA — rain/showers

SA/BLSA — sand/blowing sand

SG — snow grains

SHGR — hail shower

SHGS — small hail/snow pellet showers

SN/SHSN — snow/showers

SQ — squalls

SS — sandstorms

TD — thunderstorm

UD — unknown precipitation

VA — volcanic ash

The following qualifiers are added to describe intensity: - for light, no qualifier for moderate, and + for heavy.