Card Set Information
Weather Metar TAF
An hourly routine observation
A special observation
Test observation from uncomissioned site.
The 4 W's of METAR
The identifier for Pacific Alaska
The identifier for Pacific Hawaiian
Identifier CU CW CZ CY
WInd direction is allways referred to as coming "______" true "_______".
From, True North
Variable (wind speed 6 knots or less).
Runway visual range.
Minus or less than
What's blowing around or falling out of the sky.
Hail >1/4 in.
Small Hail/ Snow Pellets
Observations to Visability are known as...
Fog. Visability nis 1/2 mile or less.
What is a Squall?
Sustained wind speeds at least 16kts, sustained at 22kts or more for one minute or more.
Other Weather: FC
Other Weather: +FC
Tornado or Waterspout
Other Weather: DS
Other Weather: SS
Other Weather: PO
Dust or Sand Whirl (dust devel). Think Polish off.
Blowing. >6' in height above the ground.
Low Drifting <6' in height above the ground.
Present Weather Format
- = Light
+ = heavy
Blank = moderate
Intensity is listed from what to what?
The most servere the in decreasing effect on flight.
Only refers to visability or obsurations. Not for weather intensity.
Sky Condition: is reported in what fraction?
Sky Conditions: Height is given in a three digit format. HOw do you decipher?
Leading zeros are added in order to fill in all the spaces. Add two zeros to the ent to get the feet in height.
Sky Conditions: SKC or CLR
Sky clear or clear
Sky Conditions: Few
Few >0 - 2/8
Sky Conditions: SCT
Scattered 3/8 to 4/8
Sky Conditions: BKN
Broken 5/8 to 7/8
Sky Conditions: OVC
Sky Conditions: VV
Vertical Visability. Indefinate Ceiling.
IE VV005 is airport to ceiling is 500'. Height indefinate.
Sky Conditions: Whick layer represents the ceiling?
The lowest layer of Broken or Overcast clouds.
Sky Conditions: TCU
Sky Conditions: CB
FEW000 >0 - 2/8
SCT000 3/8 - 4/8
BKN000 5/8 - 7/8
Celsius to Fahrenheight Conversion formula
C x 2 +30 = F
Remarks: PK Wind
Remarks: TWR VIS
Remarks: SFC VIS
Rain Began, Rain Ended
Remarks: TSB, TSE
Time Thunderstorm Began, Time Thunderstorm Ended.
Sea Level Pressure is always in Hectopascals, same as Millibars. Add a decimal point before the last digit and a 9 or 10 in the front to get closest to 1000.
Remarks: How to read temperature?
In the remarks section provides a more accurate reading of temp.
First digit T means Temperature. Second igit 0=positive temp, 1=minus temp.
Expressed as T10641074. Temp is Minus 6.4C, Dewpoint is minus 7.4c.
Maintnance Needed at Station
End of report
What is TAF?
Terminal Aerodrome Forecast
How many times are TAF's issued daily?
4 Times a day