interpreting weather data pt 1

observation is

the weather is doing right now

pilot report is

what a pilot encountered

forecast is

expected weather

advisory is

info alerting pilots to potentially hazardous weather

routine wether report is a

METAR

what is the usual range of a METAR

5sm

what is a special weather observation

SPECI

info reported by a pilot is called a

PIREP

info reported by an aircraft/ onboard system is called

AIREP

an auto report modifier has

no human intervention

a COR report is a weather report that has been

corrected

if there is no report modifier there was

human intervention

how far a pilot can see along a particular runway is a

runway visual range

when interpreting weather data “v” is regarded as

variable

when interpreting weather data “p” is regaurded as

more then

when interpreting weather data “m” is regarded as

minus/ less than

“-” in a METAR means regarding intensity/ proximity means

light

no notes in a METAR means regarding intensity/ proximity means

moderate

“+” in a METAR means regarding intensity/ proximity means

heavy

VC in a METAR means regarding intensity/ proximity means

in the vicinity

MI in a METAR means what regarding descriptors

shallow

PR in a METAR means what regarding descriptors

partial

BC in a METAR means what regarding descriptors

patches

DR in a METAR means what regarding descriptors

low drifting

BL in a METAR means what regarding descriptors

blowing

SH in a METAR means what regarding descriptors

shower

TS in a METAR means what regarding descriptors

thunderstorms

FZ in a METAR means what regarding descriptors

freezing

DZ in a METAR regarding precipitation means

drizzle

RA in a METAR regarding precipitation means

rain

SN in a METAR regarding precipitation means

snow

SG in a METAR regarding precipitation means

snow grains

IC in a METAR regarding precipitation means

ice crystals

PI in a METAR regarding precipitation means

ice pellets

GR in a METAR regarding precipitation means

hail

GS in a METAR regarding precipitation means

snow pellets

UP in a METAR regarding precipitation means

unknown precipitation

BR in a METAR regarding obscuration means

mist

FG in a METAR regarding obscuration means

fog

FU in a METAR regarding obscuration means

smoke

VA in a METAR regarding obscuration means

volcanic ash

DU in a METAR regarding obscuration means

widespread dust

SA in a METAR regarding obscuration means

sand

HZ in a METAR regarding obscuration means

haze

PY in a METAR regarding obscuration means

spray

PO in a METAR means

dust/sand particles

SQ in a METAR means

squalls

FC in a METAR means

funnel cloud, tornado, or waterspout

SS in a METAR means

sandstorm

DS in a METAR means

dust storm

cloud coverage is regarded in what

1/8ths

FEW means regarding cloud coverage

few clouds 1/8-2/8

SCT means regarding cloud coverage

scattered 3/8-4/8

BKN means regarding cloud coverage

broken 5/8-7/8

OVC means regarding cloud coverage

completley covered 8/8

what are the VRF conditions

1,000ft ceiling and 3sm visibility

SKR or CLR in a METAR means

sky is clear

VV in a METAR means

vertical visibility

manual stations may code CB which means

cumulonimbus clouds

manual stations may code TCU which means

towering cumulus

in a METAR something that looks like 28/18 is

temperature versus dew point

what is the dewpoint

what the temperature the air would have to be for the air to be saturated

the altimeter group is signified with what on a METAR

A

what are remarks in a METAR

additional info that does not fit into the main report group

weather reported within 5-10sm of a station is marked with a

VC

DZ in a METAR means

light drizzle

RASN in a METAR means

light rain and light snow

SN BR in a METAR means

moderate snow and mist

FZRA FG in a METAR means

light freezing rain and fog

SHRA in a METAR means

moderate rain shower

VCBLSA in a METAR means

blowing sand in the vicinity

RASn FG HZ in a METAR means

light rain, light now, fog, and haze

TS in a METAR means

thunderstorm without precipitation

+TRSA in a METAR means

thunderstorm with heavy rain

+FC TSRAGR BR in a METAR means

tornado, thunderstorm, moderate rain, hail, and mist

AO1 in a METAR means

no precipitation discriminator

AO2 in a METAR means

has prescription discriminator

PK WND 28045/15 means

peak wind from 280, 45 knot, that occurred 15 minutes past the hour

WSHFT 30 tells us

there was a wind shift 30 minutes past the hour

FROPA behind the wind shift means

the wind shift was due to a frontal passage

TWR VIS in a METAR means

tower visibility

SFC VIS in a METAR means

surface visbility

CG in a METAR regarding lightning means

lightning occurs between cloud and ground

IC in a METAR regarding lightning means

lightning that takes place within a cloud

CC in a METAR regarding lightning means

lightning takes place from one cloud to another

CA in a METAR regarding lightning means

streaks of lightning pass from a cloud to the air but strike nothing

OCNL in a METAR regarding lightning means

less than 1 flash per minute

FRQ in a METAR regarding lightning means

1-6 flashes per minute

CONS in a METAR regarding lightning means

more than 6 flashes a minute

GR in e METAR means

hailstorm

virga in a METAR means

precipitation that falls from a cloud but evaporates or sublimates before reaching the ground

CIG in a METAR means

ceiling

in a variable ceiling in a METAR is symbolized as

lowest v highest

PRESRR in a METAR means

pressure is rising rapidly

PRESFR in a METAR means

pressure is falling rapidly

sea level pressure is expressed in ______, and ______ and ______ digits ______

millibars, hundreds, thousands, omitted

ACFT MSHP means

aircraft mishap

a UUA pilot report is (PIREP)

urgent

a UA pilot report is (PIREP)

routine