How to decode a METAR???

Hello everybody!! A new usefull topic

How to decode a METAR?
As you know, a METAR is a very important information for you flight, so it's very important to understand and decode it

By example :
a:20015KT b:5000 (...clouds and visibility etc...) c:05/M01 d:Q1012
a: Wind from 200° for 15kt
b: Visibility 5 000 meters
c: Temperature / Dewpoint: +5°/-1°
d: QNH 1012 (Barometric pression)

Below this, there are some usefull MTO Code...

VISIBILITY
BR = Mist ( visibility > 1km )
CAVOK = Ceiling And Visibility OK ( visibility >10km, no cloud, no precipitations )
CLR = Clear
FG = Fog Brouillard (Visibility < 1 Km)
RVR = Runway Visual Range ( if visibility < 1 500 m )
VV = Vertical Visibility ( if the sky is visible )
4 numbers = Horizontal visibility

PRECIPITATIONS
DZ = Drizzle
FZxx = Freezing
GR = Hail
GS = Soft Hail
PE = Pellet
RA = Rain
SG = Snow
SH = Shower
SN = Snow
SQ = Squall

CLOUDS
NSC = No Significant Cloud below 1 500 Meters
SKC = Sky clear ( not available if CAVOK )
FEWxxx = Fewer at xxxft ( as level )
SCTxxx = Scattered at xxxft ( as level )
BKNxxx = Brokenat at xxxft ( as level )
OVCxxx = Overcast at xxxft ( as level )
AC = Altocumulus
AS = Altostratus
CB = Cumulonimbus
CI = Cirrus
CU = Cumulus
NS = Nimbostratus
SC = Strato-cumulus
ST = Stratus
TCU = Tower cumulus
BCxx = Bank Banc
EMBD = Embeded
LSQ = Line squall
LYR = in layer
MI = Shallow
OBSC = Obscure (clouds)

WIND/TEMPERATURE/PRESSURE
CAT = Clear Air Turbulence
Gxx = Gust (if > 10kt) x = wind speed
Mxx = Minus xx (Temperature ex : -2°C)
Qxxxx = QNH (Pressure at sea level) x = pressure in Hpa
TS = Thunder storm
TURB = Turbulence
VRB = Wind Variable
WS = Wind shear

TIME EVOLUTION
BECMG = Becoming
FM xx = From
FRQ xx = Frequent
GRADU xx = Gradually
INTER = Intermittent
NOSIG = No Significant change in the following 2 hours
NSW = No Significant Weather
OCNL = Occasionnaly
PROBxx = Probability xx%
CRAPID = Rapidly
RExx = Recent (ex RERA: recent rain )
STNR = Stationnary
TEMPO xx = Temporary
TEND = Tendancy
TL xx = Till

Here we have,
Nice day!!

PY

Most of the time, if you don't understand something, the answer can be found here...
Thanks to the IVAO Academy !!

Yeah indeed but there are a lot of pilot who don't check singnifacation of the METAR... if they look on it... lol

So welcome on this Forum Hunter