Afman 15 124
29 community-sourced questions and answers. Free — no login.
Make all TAFs valid for a __ hour period.
30 hour
True or False -- You can use the modifier COR in the first line of the body of any TAF
False -- AMD is to be used in the first line with COR at the end.
Amended TAFs are valid from...
the current hour to the ending hour of the original TAF.
Degree threshold that requires a varying remark in TAF
60 degrees
True or False -- When wind speed will be more than 6 knots you can never use VRB remark for winds in TAF
False -- You can when the situation involves air-mass thunderstorm activity during which forecasting a prevailing wind direction with confidence is not possible.
Include weather and/or an obscuration...
whenever visibility is forecast less than 9,999 meters.
True or False -- Weather such as precipitation does not require a restriction to visibility to be reported in a forecast
True -- In this case, the weather is significant because it is occurring, not because it is restricting visibility.
When more than three weather groups apply to a situation encode which in a TAF?
Encode the three weather that are most significant to operations.
True or False - Forecast Volcanic Ash (VA) as present weather regardless of restrictions to visibility when VA is observed and/or the VAAC forecast includes a surfaced-based VA plume.
True
FEW
trace to 2/8ths
SCT
3/8ths to 4/8ths
BKN
5/8ths to 7/8ths
OVC
8/8ths
Forecast the height of the base of each sky cover layer in hundreds of feet in AGL or MSL?
AGL
Cloud layer reportable increments for height of < 50 feet
Round down to 000 feet
Cloud layer reportable increments for height of > 50 feet but < 5,000 feet
To the nearest 100 feet
Cloud layer reportable increments for height of > 5,000 feet but < 10,000 feet
To the nearest 500 feet
Cloud layer reportable increments for height of > 10,000 feet
To the nearest 1,000 feet
How high does the VA extend in the TAF below: TAF CCCC 1016/1122 24010KT 9999 VA FEW100 VA000200 QNH2992INS
In this example VA is surface-based and aloft. The VAAC ash plume forecast from the surface with a plume top of 20,000 feet.
Wind shear not associated with convective activity is forecasted from the surface to...
2,000 feet AGL
What is the 6 Group in a TAF?
Icing Group
What is the 5 Group in a TAF?
Turbulence Group
Icing and turbulence forecasts are for phenomena not associated with thunderstorm activity, from surface to...
10,000 feet AGL
Use this remark when an airfield is open and no weather personnel are on duty, and an operational automated sensor is not in use.
LIMITED METWATCH
Temporary conditions will be considered to be predominant and entered in the initial forecast period or following a FM or BECMG group when...
Forecast conditions in the TEMPO group last more than 30 consecutive minutes or are expected to last more than half of the period indicated
TEI
Text Element Indicator - A two-letter contraction with solidus used in the standard PIREP message to identify the elements being reported
Minimum requirements for a TAF
The transmitting organization, entries for message type, location, time, flight level, type of aircraft, and at least one other element.
Use UUA whenever reporting any of the following
-Tornado/waterspout (+FC) or funnel cloud (FC) -Severe icing -Severe or extreme turbulence, including Clear Air Turbulence -Widespread dust storm and sand storm -Low-Level Wind Shear -Hail -Volcanic eruption and/or ash -Any condition that, in the judgment of the person entering the PIREP into the system, would present an extreme hazard to flight.
Flight Level is entered in
feet above mean sea level
Looking for a different version?
CBTs get updated every year. Search for the exact version you're taking (e.g. "cyber awareness 2025").
Search all study materials