TAF3

Question 1

How often issued?

Answer 1

Routinely every 3 hours

Question 2

How long forecast valid

Answer 2

18-30 hours

Question 3

Deviations from TAF3 service hours notified where?

Answer 3

NOTAMS

Question 4

How long before forecast validity period?

Answer 4

30-60 minutes (target issue 45 mins)

Question 5

Kept under continuos watch focusing on the next ? hours

Answer 5

Five:
Validity timing of PROBS
validity timin of TEMPO/INTER

Question 6

Minute granularity for FROM (FM) element?

Answer 6

Yes

Question 7

How tell if TAF3?

Answer 7

Stamped with TAF3 in RMKs section

Question 8

NOSIG used in TAF3?

Answer 8

No

Question 9

‘Updated validity every 6 hours’ mean?

Answer 9

The validity of TAF3 forecast only extended every 6 hours regardless of how many TAF3 forecasts issued in that time frame

Question 10

Aerodromes with TAF3 services and only during first 3 hours of TAF3 validity, not beyond end TAF3 services (if such time specified), the following do not apply (2):

Answer 10

1. 30 min buffers required by paras 11.7.2.7and 11.7.2.8 (inter/tempo)
2. the alternate or holding fuel required by:
   - para 11.7.2.1 (c) for reduction in visibility or
   - para 11.7.2.5 for any PROB30 or PROB40 for TS or associated turbulence