When transferring ATC stations in a CLB what should be said?
- Leaving (passing altitude) climbing (assigned altitude)
When are TAF's issued & how long are they valid for?
- Issued 00, 06, 12, 18 UTC
- Valid for 30 hours after its release date
When is a METAR AUTO issued?
- Every ten minutes
What is wind direction referenced to in each report? Where is it measured?
- METAR- True North
- Wind measured at 10 +/- 1 metres ABV GND in the vicinity of the touchdown zone
- Wind strength over 100kts
- Velocity is 0.4kts or less
- Average wind velocity less than 3 kts and direction is variable by 60 degrees or more
- Velocity is 3 kts or more, direction is variable by 180 degrees or more and direction is not specified
- When maximum instantaneous wind velocity is greater by 10kts or more in past 10 minutes
What are ATIS or WINDS reported by TWR reference to?
- Magnetic north
- If it's read to you it's Magnetic!
R34/1400U R34/0200D? When are UP & Down given?
- RWY 34 1400m VIS UP
- RWY34 200m VIS DWN
- When average in first 5 minutes varies by 100 metres or more then the average in the second 5 minutes U, D or N (Not distinctive) is reported
- Observed value not obtained or the RWY edge lights or centreline lights are out of service
When is RVR reported?
- Prevailing visibility or Directional visibility is 1500m or less OR RVR value is 1800m or less
- P & M are given when RVR value is outside of the measuring limits
- The greatest or least measurable RVR is reported
- Any phenomenon approx between 8km-16km of the aerodrome reference point
- Not at the airport
- Reported within about 20km of aerodrome ref point
MI/ BC/ PR when used with FG mean?
- MI - Shallow
- BC - Patches
- PR - Partial
DR what does it mean and when is it used?
- DR - Low Drifting
- Used with DU, SA, SN when blown up less then 2 metres
BL what does it mean and when is it used?
- BL - Blowing
- Used with DU, SA, SN when blown up 2 metres or higher
DZ, RA, SN, RASN SNRA, SG, PL, GR, GS
- DZ - Drizzle
- RA - Rain
- SN - Snow
- RASN, SNRA - Sleet
- SG - Snow Grains
- PL - Ice pellets
- GR - Hail
- GS - Snow pellets and/ or small hail
SH what does it mean and when is it used?
- SH - Showers
- Used with RA, SN, GS, GR
TS what does it mean and when is it used?
- TS - Thunderstorm
- Used with RA, SN, GS, GR
- BR - Mist (Used when vis is 1000m or greater and 5000m or less)
- FG - Fog (lowest vis is less than 1000m except for MI,BC,PR,VC)
- FU - Smoke (Vis 5000m or less)
- VA - Volcanic Ash
- DU - Dust (Widespread)
- BLDU - Blown Up Dust (VIS 5000m or less)
- DRDR - Drifting Dust
- SA - Sand
- BLSA - Blown Up Dust Storm (VIS less then 5000m)
- DRSA - Drifting Dust Storm
- HZ - Haze (VIS 5000m or less)
- PO - Dust / Sand Whirls
- SQ - Squall
- FC - Funnel Cloud, tornado or water spout (FC is used for a funnel cloud that does not reach the surface, +FC is used for a tornado)
- SS - Sandstorm
- DS - Dust Storm
What 2 cloud types are indicated in METAR?
- TCU - Towering Cumulous
- CB - Cumulonimbus
- VV - Vertical Visibility in 100ft increments
- NSC - Nil significant cloud ( No clouds observed below 5000ft or the max height of the MSA whichever is higher and no CB and TCU are observed but CAVOK is not appropriate)
- Visibility: 10km or greater
- Cloud: No cloud is observed BLW 5000ft or the highest MSA, whichever is higher
- Neither CB nor TCU is observed at all altitudes
- Present Weather: No weather phenomenon represented by the prescribed abbreviations is reported
- TEMP & DEW POINT both minus
PRR or PFR
- PRR - Pressure rising rapidly
- PFR - Pressure falling rapidly
- Displayed when the pressure has risen or fallen by more than 1hpa within 30 minutes of observation
WS 16R or WS ALL RWY
- WS - Wind shear (Any wind shear is observed at 1600ft or BLW over the RWY surface in the designation of the takeoff or LDG area within 30 minutes before observation time)
6SC060 in remarks section?
- 6 OCTAS STRATO CU AT 6000ft
Put in the remarks section when:
- When the cloud amount of any middle or low clouds in a METAR/SPECI or:
- Any middle or low clouds when NSC is reported or:
- Cloud amount is 5/8 or more during CAVOK below 10,000ft
- FBL - Light
- MOD - medium
- HVY - Heavy
- Prefixed with TS when lightning is observed
How is the wind reported from the tower?
- 2 minute average in Magnetic direction
SIGMET when are they issued and how long for?
Released whenever the below phenomenon is observed within the Fukuoka FIR
- Thunderstorm (4 hours)
- Severe Turbulence (4 hours)
- Severe Icing (4 hours)
- Volcanic Ash (6 hours)
- Radio Active Material (4 hours)
Typhoon (Tropical depression) (6 hours)
TREND attached to a METAR?
- TREND is attached to METAR and is valid for 2 hours after its release
When is TEMPO used?
- When temporary changes are frequent in any met conditions, while each change lasts less than 1 hour.
When is BECMG used?
- Used when any phenomenon is changing uniformly throughout the reffered period
When is RVR reported?