Aviation weather basics — aviation weather guides

What aviation weather actually is, how a front turns into a delay or a diversion, and where pilots and dispatchers get the reports that decide it.

Aviation weather basics METAR and TAF decoding Weather hazards in flight Regional aviation weather Weather and flight planning

3 guides

A flight planning desk at dawn, charts and printed reports spread out before departure

Where Aviation Weather Actually Comes From (and Which Sources Count)

Which organisation issues the report you are reading, why only some sources are legally usable for a flight, and what the free apps are really showing you.

Aviation weather basics 8 min read

Aircraft holding on a wet apron while a storm line moves across the airfield

How Weather Affects Flights: Delays, Diversions and Cancellations

Why a clear sky at your airport still produces a two-hour delay, what actually triggers a diversion, and which weather cancels a flight outright.

Aviation weather basics 9 min read

A layered sky above an airfield, each layer marking a different part of the forecast

What Is Aviation Weather? The Five Numbers That Decide a Flight

Aviation weather is the same atmosphere reported differently: cloud base in feet, visibility in metres, wind to ten degrees. Here is what each number decides, and why.

Aviation weather basics 8 min read

Ask about a flight

Last updated 2026-08-05 by aviationwheater.siten.co · About us

Written in house

Every guide is researched and written by our editorial team from the published documentation, not rewritten from another site.

Reviewed on a schedule

Each guide carries the date of its last review, and we publish the date even when nothing changed.

Sources named

Where a threshold comes from ICAO Annex 3, an FAA category or a national service, the guide says which.

Twelve languages

Every guide is translated, not machine-popped — each language has its own URL and its own review date.

Not an operational source

We explain reports; we never issue them. The official service and the commander decide, and every page says so.