taf info

[Jay Bo]

this was fm a ywol taf also ymry is similar

FM12 31005KT 9999 HAZE FEW001

So does this mean haze is few at 100 feet

thanks

[Capt Fathom]

Vis 10kms or greater, haze. Few Cloud 100'

[Jay Bo]

thanks, thats what i thought but the taf also included cavok so thats where the confusion came from

[ITCZ]

TAF: Wind, Visibility, Cloud.

Haze, Smoke, Rain, etc, describe Visibility.

Whatever was happening before 1200, is old news. New conditions expected FRom 12ooZ:
Wind = 310/5,
Visibility = +10km in Haze,
Cloud = Few at 100' above aerodrome level.

[ITCZ]

Jay Bo....

Don't look for cloud types in TAF. The only cloud types given in Aussie TAF are CB and TCU.

Haze, blowing dust, dust devils, light rain, shallow fog, drifting snow.... weather phenomena. Not cloud. Read up at Jepp MET 11.10 with types at 12.1, or AIP GEN 3.5 para 12.10 and 13.

Sorry to nitpick

Thats all right, provided you are ready to be nitpicked yourself!

if the weather preceeding 1200 had an INTER or a TEMPO

The weather preceeding 1200 will never "have" an INTER or a TEMPO.

Inter and Tempo stand alone.

Inter and Tempo do not 'belong' to one part of the forecast.

If the conditions (wind/viz/wx/cloud) prevailing at the commencement of the validity period are expected to change, then you get FM.

Jepp MET 11.15.2 "The term FM is used to specify changes that are more lasting in nature and the indicator is the beginning of a self-contained forecast or trend"

Inter and Tempo are listed AFTER the prevailing wind/viz/wx/cloud and FM wind/viz/wx/cld.

always know your alternate requirements due weather

That would be great advice. Shame that was not the question asked. Jay Bo was confused about TAF decode. Not provisions for alternate aerodromes.