Aviation Weather Reports

1. Question

During times of precipitation and when compared to a human observation, the ceiling reported by an AWOS tends to be

lower.

higher.

lower during the day and higher during the night.

lower during the night and higher during the day.

2. Question

If shallow fog is reported over the touchdown zone, pilots should be aware that

slant visibility may be greater than RVR A.

the reported prevailing visibility may be inaccurate.

the visibility at the runway threshold will be greater than the visibility at the runway mid-point.

the reported RVR may be inaccurate.

3. Question

Why was a special observation taken at 0619Z?

METAR CYOW 160700Z AUTO 10012G18KT 3SM RA BR BKN005 OVC009 10/10 A3001 RMK PCPN 7.0MM PAST HR SLP164=
SPECI CYOW 160656Z AUTO 10012G18KT 3SM RA BR BKN005 OVC009 10/10 A3001 RMK PCPN 6.8MM PAST HR SLP164=
SPECI CYOW 160652Z AUTO 10011G17KT 2SM RA BR BKN005 OVC009 10/10 A3001 RMK PCPN 6.2MM PAST HR SLP164=
SPECI CYOW 160651Z AUTO 10012G17KT 2SM +RA BR BKN005 OVC009 10/10 A3001 RMK PCPN 6.2MM PAST HR SLP164=
SPECI CYOW 160647Z AUTO 10012G17KT 1 3/4SM +RA BR BKN005 OVC009 10/10 A3001 RMK PCPN 5.8MM PAST HR SLP164=
SPECI CYOW 160639Z AUTO 10010G16KT 2 1/2SM +RA BR BKN005 OVC009 10/10 A3001 RMK PCPN 4.2MM PAST HR SLP166=
SPECI CYOW 160631Z AUTO 10010G16KT 2SM RA BR BKN005 OVC009 10/10 A3001 RMK PCPN 3.0MM PAST HR SLP166=
SPECI CYOW 160630Z AUTO 10011G16KT 2SM +RA BR BKN005 OVC009 10/10 A3001 RMK PCPN 3.0MM PAST HR SLP166=
SPECI CYOW 160623Z AUTO 10010G16KT 2 1/2SM +RA BR SCT005 OVC009 10/10 A3001 RMK PCPN 2.0MM PAST HR SLP166=
SPECI CYOW 160622Z AUTO 10009G16KT 3SM +RA BR SCT005 OVC009 10/10 A3001 RMK PCPN 1.8MM PAST HR SLP166=
SPECI CYOW 160619Z AUTO 10010G16KT 3SM RA BR SCT004 OVC009 10/10 A3001 RMK PCPN 1.2MM PAST HR SLP166=
METAR CYOW 160600Z AUTO 11010G16KT 3SM -RA BR BKN004 OVC009 10/10 A3002 RMK PCPN 2.8MM PAST HR SLP167=
SPECI CYOW 160542Z AUTO 11011G19KT 5SM -RA BR BKN004 OVC009 10/10 A3002 RMK PCPN 1.5MM PAST HR SLP168=
SPECI CYOW 160533Z AUTO 11013G18KT 9SM -RA OVC004 10/10 A3002 RMK PCPN 1.2MM PAST HR SLP168=
SPECI CYOW 160528Z AUTO 11011G18KT 9SM OVC004 10/10 A3002 RMK PCPN 1.2MM PAST HR SLP167=
SPECI CYOW 160520Z AUTO 11012G18KT 6SM -RA BR OVC004 10/10 A3002 RMK PCPN 1.2MM PAST HR SLP168=
METAR CYOW 160500Z AUTO 11011G19KT 5SM -RA BR OVC004 10/10 A3002 RMK PCPN 2.2MM PAST HR SLP169=

TAF CYOW 160140Z 1602/1614 10010G20KT 5SM -RA BR BKN004 OVC012
TEMPO 1602/1604 P6SM NSW SCT004 OVC012
PROB40 1602/1604 3/4SM -RA BR VV002
FM160400 10010G20KT 1SM -RA BR OVC003
TEMPO 1604/1614 6SM BR OVC008
PROB40 1604/1614 3/4SM -RA BR VV002
RMK FCST BASED ON AUTO OBS. NXT FCST BY 160800Z=

The intensity of the rain strengthened.

The visibility improved from 3SM to 4SM.

The previous report was inconsistent with the aerodrome forecast.

The broken layer of clouds became a scattered layer.

4. Question

If the ATIS advises that SIGMET Charlie is in effect a pilot may contact . . . . . for more information regarding the SIGMET.

a flight information centre

ground control

departure control

clearance delivery

5. Question

SPECI CYYZ 031013Z CCA 25012KT 2SM TS BR FEW045CB OVC073 17/17 A2970 RMK CB2AC6 OCNL LTGIC NW PRESRR SLP058 DENSITY ALT 1200FT=
SPECI CYYZ 031013Z 25012KT 2SM TS FEW045CB OVC073 17/17 A2970 RMK CB2AC6 OCNL LTGIC NW PRESRR SLP058 DENSITY ALT 1200FT=
METAR CYYZ 031000Z 20003KT 150V220 1 1/2SM R15L/2600VP6000FT/N R23/3500VP6000FT/U BR SCT002 BKN060 BKN160 OVC240 17/16 A2966 RMK ST3 SC3AC1CI1 PRESRR SLP044 DENSITY ALT 1300FT=
SPECI CYYZ 030922Z 23004KT 2 1/2SM R15L/2800FT/N R23/3500VP6000FT/D BR SCT002 OVC150 16/15 A2965 RMK ST4AC4 SLP041 DENSITY ALT 1100FT=
METAR CYYZ 030900Z 21005KT 6SM BR BKN002 OVC180 15/15 A2965 RMK ST6AC2 SLP041 DENSITY ALT 1100FT=

TAF AMD CYYZ 031006Z 0310/0412 VRB03KT P6SM FEW002 SCT060 BKN240
TEMPO 0310/0311 11/2SM BR BKN002
FM031030 VRB03KT P6SM BKN060
TEMPO 0310/0312 11/2SM TSRA BR BKN060CB
FM031400 27010KT P6SM BKN080
TEMPO 0319/0323 27010KT P6SM -SHRA BKN080
FM040000 32010KT P6SM SCT080
FM040300 30008KT P6SM SKC RMK NXT FCST BY 031200Z=

What RVR was reported for runway 15L at 0922Z?

2,800 feet with no distinct trend observed.

3,500 feet variable 6,000 feet.

2,800 feet and improving.

2,800 feet and worsening.

6. Question

QuestionAppendix – CAP CYCD AERODROME CHART

Refer to the Appendix: CAP CYCD AERODROME CHART

Given the following weather information, is it possible for an aircraft with a climb gradient of 350 ft/NM to depart under IFR?

METAR CYCD 050200Z 27005KT 6SM BR OVC006 06/05 A3017 RMK SF8 CIG RAG SLP220=
METAR CYCD 050100Z 28003KT 8SM BKN009 BKN012 OVC045 06/05 A3019 RMK SF5SF2SC1 CIG RAG SLP226=
METAR CYCD 050000Z 26003KT 8SM SCT009 BKN012 OVC045 07/05 A3021 RMK SF3SF4SC1 CIG RAG PRESFR SLP232=

TAF CYCD 042338Z 0500/0505 05005KT P6SM -RA SCT008 OVC015
TEMPO 0500/0505 2SM -RA BR SCT004 OVC008
RMK NXT FCST WILL BE ISSUED AT 051545Z=

No, the ceiling must allow for a visual climb over the airport to 2,000 feet.

Yes, an aircraft can depart from RWY 34 if it can make use of the YCD NDB.

Yes, because the reported visibility is greater than the minimum required visibility.

No, there is a broken layer below 2,000 feet and the required SPEC VIS is 3 SM.

7. Question

VV002 in a METAR means

the ceiling is 200 feet and obscured.

the cloud layer at 200 feet is obscured.

the ceiling is 20 feet.

there is an obstruction to visibility at 200 feet.

8. Question

CYOW 221530Z 18007KT 2 1/2SM -DZ BR OVC004 14/13 A2993 RMK AO2 P0001 T01390133

The visibility is obscured due to

mist.

fog

haze.

drizzle.

9. Question

SPECI CYMO 062201Z AUTO 24018G26KT 210V280 9SM -RA FEW045 BKN055 OVC073 12/06 A2942 RMK SLP965 DENSITY ALT 200FT=
METAR CYMO 062200Z AUTO 25019G26KT 210V280 9SM FEW045 BKN055 OVC074 12/06 A2942 RMK SLP965 DENSITY ALT 200FT=
METAR CYMO 062100Z AUTO 23022G33KT 9SM SCT043 BKN055 12/06 A2940 RMK SLP957 DENSITY ALT 300FT=
SPECI CYMO 062030Z AUTO 23016G28KT 9SM FEW028 SCT036 SCT046 BKN055 12/08 A2940 RMK SLP956 DENSITY ALT 200FT=
SPECI CYMO 062015Z AUTO 24019G32KT 9SM -RA FEW024 SCT035 BKN048 OVC075 11/08 A2939 RMK SLP954 DENSITY ALT 100FT=
METAR CYMO 062000Z AUTO 23020G27KT 9SM SCT048 BKN060 OVC074 12/08 A2938 RMK SLP952 DENSITY ALT 200FT=

The lowest ceiling was reported at

2015Z.

2201Z.

2030Z.

2200Z.

10. Question

An AWOS is capable of reporting cloud bases up to

25,000 feet.

18,000 feet.

35,000 feet.

15,000 feet.

11. Question

QuestionAppendix – CFS Castlegar, BC

Refer to the Appendix: CFS Castlegar, BC

LWIS CYCG 190500Z AUTO 13003KT 110V190 03/03 A2970=

LWIS CYCG 190400Z AUTO 14003KT 03/03 A2968=

LWIS CYCG 190300Z AUTO VRB02KT 03/03 A2966=

TAF AMD CYCG 182330Z 1823/1901 VRB03KT P6SM -SHRA SCT020 BKN040 OVC060 TEMPO 1823/1901 3SM -SHRA BR FEW004 BKN020 OVC040 RMK NXT FCST WILL BE ISSUED AT 191545Z=

Which statement is correct regarding an aircraft departing from runway 15 at 0500Z?

A category "A" aircraft may depart IFR if the pilot determines that the visibility is greater than 1 SM and is able to tune and identify YK NDB.

An IFR departure is not authorized since ground visibility is not reported.

A category "C" aircraft may depart IFR if the pilot determines that the visibility is greater than 1 SM regardless of the serviceability of the YK NDB.

A category "A" aircraft may depart IFR if the pilot determines that the visibility is greater than 1/2 SM and is able to tune and identify YK NDB.

12. Question

A Limited Weather Information System (LWIS) must be able to report, at a minimum, the

wind direction and speed.
visibility.
altimeter setting.
cloud coverage.
air temperature.
dew point.

A, C, E, F.

A, B, C, D, E, F.

A, B, C, F.

A, B.

13. Question

METAR CYYT 062200Z 24006KT 15SM FEW220 06/03 A3022 RMK CC1 CC TR SLP240=

What type of cloud is reported at CYYT?

Cirrocumulus.

Cumulus castellanus.

Cirrus.

Cumulus.

14. Question

METAR CYOW 090000Z 06008KT 6SM -SN SCT031 OVC052 M10/M12 A2996 RMK SC3SC5 SLP157=
METAR CYOW 082300Z 06009KT 5SM -SN FEW020 OVC060 M10/M11 A2995 RMK SC1SC8 SC TR /S01/ SLP154=
METAR CYOW 082200Z 05008KT 3SM -SN FEW025 OVC045 M09/M11 A2996 RMK SC2SC6 SLP156=
METAR CYOW 082100Z 06007KT 2 1/2SM -SN OVC028 M09/M11 A2996 RMK SN2SC6 SLP157=
METAR CYOW 082000Z 04012KT 2 1/2SM -SN OVC025 M08/M11 A2997 RMK SN2SC6 SLP158=
METAR CYOW 081900Z 05011KT 8SM -SN FEW025 BKN050 OVC250 M08/M11 A2997 RMK SC2SC5CS1 SLP160=
METAR CYOW 081800Z 04010KT 3SM -SN BKN026 OVC120 M08/M10 A2999 RMK SN2SC5AS1 /S03/ SLP166=
SPECI CYOW 081741Z 04009KT 2SM -SN OVC025 M08/M10 A3000 RMK SN3SC5 SLP169=
SPECI CYOW 081714Z 07010G16KT 1SM R32/5500VP6000FT/U R07/P6000FT/U -SN OVC020 M07/M10 A3001 RMK SN6SC2 SLP172=
METAR CYOW 081700Z CCA 07008KT 5/8SM R32/5500V6000FT/N R07/6000FT/D -SN OVC022 M07/M10 A3001 RMK SN5SC3 /S02/ SLP174=

TAF CYOW 081740Z 0818/0918 07012KT 1 1/2SM -SN BKN012 OVC030
TEMPO 0818/0822 6SM -SN OVC030
FM082200 07008KT 6SM -SN BKN030 OVC060
TEMPO 0822/0904 2 1/2SM -SN
FM090400 07005KT 6SM BR SCT008 OVC025
TEMPO 0904/0911 3SM -SHSN BKN008 OVC020
BECMG 0908/0909 30005KT FM091100 31010KT P6SM BKN025
RMK NXT FCST BY 082100Z=

Given the METAR and TAF shown above which statement regarding the weather at CYOW is correct?

At 0000Z the forecast ceiling is lower than the reported ceiling.

During the temporary fluctuation in weather at 1800Z, wind is not forecast because it is light and variable.

The 1714Z special meteorological report was issued to correct an error on the 1700Z METAR.

Snow was not reported until after the start of the forecast period.

15. Question

METAR CYXE 292000Z CCA 09015G25KT 3/4SM R09/4000FT/D –RA BR BKN008 0VC040 21/19 A2992 WS RWY 09 RMK SF5NS3 VIS NW 3/8 SLP134 DENSITY ALTITUDE 2500FT

Refer to the METAR above, 3/4SM R09/4000FT/D means the

prevailing visibility is 3/4 statute miles and runway 09 RVR is 4,000 feet with a downward trend.

prevailing visibility is 3/4 statute miles and the cloud base over runway 09 is 4,000 feet with no trend reported.

prevailing visibility is 3/4 statute miles and the cloud base over runway 09 is 4,000 feet with a downward trend.

prevailing visibility is 3/4 statute miles and runway 09 RVR is 4,000 feet with an upward trend.

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