Contractions

 Contractions Used in National Weather Service Aviation Products

ACFT — aircraft

ACTV — active

AGL — above ground level

ALF — aloft

AMS — air mass

ARND — around

ASL — above sea level

BKN — broken

BLZD — blizzard

BRF — brief

BTR — better

BTWN — between

BYD — beyond

CAT — clear air turbulence

CAVOK – ceiling and visibility OK

CHG – change

CIG – ceiling

CONT – continue

CSDRBL – considerable

CVR – cover

DCR – decrease

DMSH – diminish

DNS – dense

DRZL – drizzle

DSIPT – dissipate

DVLP – develop

EMBDD – embedded

EXTRM – extreme

EXTSV – extensive

FCST – forecast

FLRY – flurry

FQT – frequent

FROPA – frontal passage

FROSFC – frontal surface

GNDFG – ground fog

GRDL – gradual

HGT – height

HLSTO – hailstones

HND – hundred

HVY – heavy

HURCN – hurricane

ICGIC — icing in clouds

ICGIP — icing in preparation

IMDT — immediate

INCR — increase

INDEF — indefinite

INTSFY — intensify

ISOLD — isolated

JTSTR — jet stream

KT — knot(s)

LGT — light

LMT — limit

LVL — level

LWR — lower

LYR —layer

MRTM — maritime

MSL — mean sea level

MXD — mixed

NM — nautical mile(s)

NMRS — numerous

NOTAM — notice to airmen

OBSC — obscure

OCLN — occlusion

OCNL — occasional, occasionally

OCR — occur

OTLK — outlook

OTRW — otherwise

OVC — overcast

PCPN — precipitation

PIREP – pilot report

PRST – persist

PBL – probable

PSBL – possible

PSG – passing/passage

PTLY – partly

PVL – prevail

RA – rain

RAREP – radar weather report

RDG – ridge

RESTR – restrict

RGD – ragged

RMN – remain

RPD – rapid

RTE – route

RUF – rough

SCT – scattered

SCTR – sector

SHFT – shift

SHWR – shower

SKC – sky clear

SLGT – slight

SMK – smoke

SNW – snow

SQLN – squall line

STBL – stable

STG – strong

SVR — severe

THN — thin

TSHWR — thundershower

TSTM — thunderstorm

TURBC — turbulence

TWD — toward

UPSLP — up slope

VRBL — variable

VSBY — visibility

WDLY — widely

WEA — weather

WK — weak

WV — wave

WX — weather