PHAK 13: Aviation Weather Services, U.S. METAR Abbreviations Flashcards
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maintenance check indicator
ACC
altocumulus castellanus
ACSL
altocumulus standing lenticular cloud
ALQDS
all quadrants (official)
AO1
automated station without precipitation discriminator
APCH
approach
APRX
approximately
AUTO
fully automated report
CA
cloud-air lightning
CBMAM
cumulonimbus mammatus cloud
CCSL
cirrocumulus standing lenticular cloud
CG
cloud-ground lightning
CHINO
sky condition at secondary location not available
CONS
continuous
DOC
Department of Commerce
DOT
Department of Transportation
DSNT
distant
E
- east
- ended
- estimated ceiling (SAO)
FIBI
filed but impracticable to transmit
FMH-1
Federal Meteorological Handbook No.1, Surface Weather Observations & Reports (METAR)
FROPA
frontal passage
FRQ
frequent
FZRANO
freezing rain sensor not available
HLSTO
hailstone
INCRG
increasing
KT
knots
LAST
last observation before a break in coverage at a manual station
LTG
lightning
M
minus, less than
METAR
Meteorological Aerodrome Report
MOV
moved/moving/movement
N
north
NCDC
National Climatic Data Center
NOS
National Ocean Service
NOTAM
Notice to Airmen
NWS
National Weather Service
OFCM
Office of the Federal Coordinator for Meteorology
OVR
over
PCPN
precipitation
PNO
precipitation amount not available
PRESFR
pressure falling rapidly
PWINO
precipitation identifier sensor not available
RTD
Routine Delayed (late) observation
RVR
Runway visual range
RWY
runway
SCSL
stratocumulus standing lenticular cloud
SFC
surface, i.e., ground level)
SLPNO
sea-level pressure not available
SNINCR
snow increasing rapidly
SPECI
an unscheduled report taken when certain criteria have been met
SW
southwest
TS
thunderstorm
TWR
tower
UTC
Coordinated Universal Time
VIS
visibility
VR
visual range
W
west
WMO
World Meteorological Organization
WS
wind shear
Z
Zulu, i.e., Coordinated Universal Time
/
- indicator that visual range data follows
- separator between temperature and dew point data.
ACFT MSHP
aircraft mishap
ALP
airport location point
ALQS
all quadrants (unofficial)
AO2
automated station with precipitation discriminator
APRNT
apparent
ATCT
airport traffic control tower
C
center
(reference to runway designation)
CB
cumulonimbus cloud
CC
cloud-cloud lightning
cd
candela
CHI
cloud-height indicator
CIG
ceiling
COR
correction to a previously disseminated observation
DOD
Department of Defense
DSIPTG
dissipating
DVR
dispatch visual range
FAA
Federal Aviation Administration
FIRST
first observation after a break in coverage at manual station
FMH2
Federal Meteorological Handbook No.2, Surface Synoptic Codes
FROIN
frost on the indicator
FT
feet
G
gust
ICAO
International Civil Aviation Organization
INTMT
intermittent
L
left
(reference to runway designation)
LST
local standard time
LWR
lower
MAX
maximum
MIN
minimum
MT
mountains
N/A
not applicable
NE
northeast
NOSPECI
no SPECI reports are taken at the station
NW
northwest
OCNL
occasional
OHD
overhead
P
indicates greater than the highest reportable value
PK WND
peak wind
PRES
pressure
PRESRR
pressure rising rapidly
R
right
(with reference to runway designation), runway
RV
reportable value
RVRNO
RVR system values not available
S
south
SE
southeast
SLP
sea-level pressure
SM
statute miles
SOG
snow on the ground
STN
station
TCU
towering cumulus
TSNO
thunderstorm information not available
UNKN
unknown
V
variable
VISNO
visibility at secondary location not available
VRB
variable
WG/SO
Working Group for Surface Observations
WND
wind
WSHFT
wind shift