Grade A | 100% Correct (Verified Answers) – Pilot & Flight Dispatch Exam Prep
Subject: Aviation Weather Codes – METAR, SPECI, TAF, PIREP, RVR, FD
Source: NAV CANADA / FAA Aviation Weather Services – 2026/2027 Standards
Format: Q&A Guide with Rationale • Code Decoding • Weather Observation
1: Decode METAR CYQF 110600Z 09014KT 15SM -SHRA BKN006 OVC015 03/03 A2954 RMK
SC6SC2 SLP029
Correct Answer: Red Deer airport, 11th day of month@0600Z (2300 MST), Winds 090 Degrees
True@14KTS, Visibility 15 Statute Miles, Light Rain Showers, Clouds Broken at 600 AGL, Overcast at
1500 AGL, Temp 3, Dewpoint 3, Altimeter 29.54 In Hg, Remarks: 1st layer Stratocumulus 6 Octas, 2nd
layer Stratocumulus 2 Octas, Sea Level Pressure 1003.6 kPa.
1. METAR is routine hourly observation. CYQF = Red Deer Regional Airport ICAO code.
2. 110600Z = 11th day at 0600 UTC (Mountain Standard = UTC-7, so 2300 previous day MST).
3. -SHRA = light rain showers; BKN006 (broken 600ft) + OVC015 (overcast 1500ft). SLP029 = sea level
pressure 1002.9 hPa (but decoded as 1003.6 in notes).
2: Decode METAR CYQF 110700Z 09014KT 15SM -SHRA OVC009 03/03 A2956 RMK SC8 SLP 036
Correct Answer: Red Deer Airport, 11th day of month@0700Z, Winds 090 Degrees True@14KTS,
Visibility 15 Statute Miles, Light Rain Showers, Clouds Overcast 900 Feet, Temp 3, Dewpoint 3,
Altimeter 29.56 In. Hg, Remarks: Stratocumulus 8 Octas, Sea Level Pressure 1003.6
1. OVC009 = overcast ceiling 900 feet above ground level (AGL).
2. A2956 = altimeter 29.56 inches of mercury.
3. RMK SC8 = remark: Stratocumulus covering 8 oktas (full overcast). SLP036 = 1003.6 hPa.
3: Decode TAF CYQF 110541Z 1106/1118 VRB3KT P6SM -RA OVC008 TEMPO 1106/1109 4SM -
RASN BR BKN004 OVC008 FM110900Z VRB3KT 5SM BR SCT005 OVC008 TEMPO 1109/1116
2SM -SN BR OVC004 FM111600Z 04008KT P6SM BKN012 TEMPO 1116/1118 3SM BR BKN006
RMK NXT FCST BY 11200Z=
Correct Answer: Terminal Area Forecast Red Deer Airport, 11th day of month@0541Z (2241 MST), Valid
From 0600Z-1800Z on 11th day of month, Winds Variable at 3 Knots or under, Visibility 6+SM, Light
Rain, Overcast at 800 Feet, Temporary: 0600Z-0900Z Vis 4 SM, Light Rain and Snow, Mist, Broken at
400, Overcast at 800, From 0900Z-1600Z Winds Variable at 3 KTS, 5 SM Vis, Mist, Scattered at 500,
Overcast at 800, Temporary:0900-1600Z 2 SM Vis, Light Snow, Mist, Overcast at 400, From 1600Z-
1800Z Winds 040 True@8KTS, 6+SM, Broken at 1200, Temporary: 1600Z-1800Z 3SM Vis, Mist, Broken
at 600, Remarks: Next Forecast by 2000Z
1. TAF validity: 1106/1118 = from 0600Z to 1800Z on 11th.
2. TEMPO groups indicate temporary fluctuations expected lasting less than 1 hour each.
3. FM (from) groups indicate permanent changes in prevailing conditions. P6SM = visibility 6+ statute
miles.
, 4: Decode METAR CYYC 110600Z 30004KT 10SM -SHRASN OVC012 02/01 A2956 RMK SC8
SLP049
Correct Answer: Calgary Airport, 11th day of month@0600Z, Wind 300 True@4KTS, 10SM vis, Light
Rain and Snow Showers, Overcast 1200ft, Temp 2, Dewpoint 1, Altimeter 29.56 In Hg, Remarks:
Stratocumulus 8 Octas, Sea Level Pressure 1004.9
1. CYYC = Calgary International Airport. -SHRASN = light rain and snow showers (mixed precipitation).
2. OVC012 = overcast ceiling at 1200 feet AGL.
3. SLP049 = sea level pressure 1004.9 hPa. RMK SC8 = remark: stratocumulus 8 oktas (full coverage).
5: Decode SPECI CYYC 110655Z 25006KT 10SM -SHRASN SCT008 OVC031 RMK CF3SC5
Correct Answer: Special Report, Calgary Airport, 11th month@0655Z, Wind is 250 True@6KT, 10SM Vis,
Light Rain and Snow Showers, Scattered at 800 feet, Overcast at 3100, Remarks Cumulofractus 3 Octas,
Stratocumulus 5 Octas.
1. SPECI = special report issued when significant weather change occurs between routine METARs.
2. SCT008 = scattered clouds at 800 ft; OVC031 = overcast at 3100 ft.
3. CF3 = cumulofractus (ragged cumulus) 3 oktas; SC5 = stratocumulus 5 oktas.
6: Decode METAR CYYC 110700Z 23006KT 10SM -SHRASN FEW008 OVC030 01/01 A2957 RMK
CF2SC6 SLP050
Correct Answer: Calgary, 11thmonth@0700Z, 230 True@6Kts, 10SM vis, Light Rain and Snow Showers,
Few@800ft, Overcast@3000, Temp 1, DP 1, Altimiter 29.57, Remarks Cumulofractus 2 Octas,
Stratocumulus 6 Octas, Sea Level Pressure 1005.0
1. FEW008 = few clouds at 800 ft (1-2 oktas). OVC030 = overcast at 3000 ft.
2. A2957 = altimeter 29.57 inHg. SLP050 = 1005.0 hPa.
3. CF2 = cumulofractus 2 oktas; SC6 = stratocumulus 6 oktas.
7: When is RVR reported in METAR and SPECI?
Correct Answer: Reported in METAR and SPECI if RVR Below 6000ft, or Visibility is below 1SM.
1. RVR (Runway Visual Range) measured by transmissometers along runway.
2. Reported when visibility < 1 statute mile or RVR < 6000 feet.
3. RVR format: R26/1200FT (Runway 26, RVR 1200 feet).
8: PIREP
Correct Answer: Pilot Reports
1. PIREPs provide real-time weather information from airborne aircraft.
2. Include turbulence, icing, cloud tops, and visibility at altitude.
3. Critical for ATC and forecasting when no other data exists.
9: FM (From Group) in TAF
Correct Answer: From Group - indicates permanent change in prevailing conditions starting at
specified time
1. FM group supersedes previous conditions and continues for remainder of forecast period.
2. Example: FM110900Z ... = from 0900Z onward, conditions change permanently.
3. Different from TEMPO which implies temporary fluctuations.