6/5/2023 0 Comments Wx meaning![]() It will always give you the following information: You will find ATIS at the larger more established airports (Class B and C airports and some Class D airports). No big deal.Įvery ATIS will broadcast the time in Zulu. But, sometimes, a change in ATIS merely a runway change. It doesn’t happen very often, but when I hear a report given at 2335Z, that always makes me a bit worried. Sometimes ATC will read you the info and save you from having to get it yourself.Īlso, if the time on the ATIS is anything other than the standard 55 minutes past, you know the weather is changing rapidly enough the tower needed to update the weather (this is both for good and bad weather). Just pick up the new ATIS when the workload decreases. Sometimes, on approach to the airport, the timing is such that you have to get the old ATIS knowing full well you will have to get it again. ![]() ![]() Ground and/or tower will ask you if you have the latest ATIS. It’s important you note the time when the ATIS changes, because you may want to wait a few minutes and get the most updated weather. Note: Some airports like Vancouver, Canada change ATIS on the hour. The ATIS is published hourly at 55 minutes past the hour unless the weather is changing rapidly and the tower deems it necessary to provide updated information. Portland (KPDX) is considered an ASOS station even though it broadcasts ATIS information. Which is where the ATIS gets its name: “terminal information system.”Īs you scroll down through this article you will see an image of all the ASOS stations in Oregon. So, an airport can technically have an ATIS and an ASOS (like KPDX).Īn ATIS system becomes more than just an ASOS broadcast when it adds additional information provided by a human in the tower. To further complicate things, airports with ATIS get their information from the ASOS system. When the tower closes at night, so too will the ATIS (it will revert to ASOS most likely). They’re more expensive you will only see these at the towered airports. This is the gold standard because it requires a human to monitor the system. What is Automated Terminal Information Service (ATIS)? I’ve been caught making that mistake before and it’s not fun dealing with unexpected clouds. If you get too far away from the reporting station you are on your own, which is why you should always check the satellite imagery between your departure and arrival airports. ![]() Remember, though, all of them only report what’s going on at the airport.
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