Questions tagged [taf]

TAF, or Terminal Area Forecast, is a format for providing weather forecasts for the area immediately surrounding the reporting station. It is similar to but distinct from METAR.

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13
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2answers
5k views

What do multiple slashes in METAR mean?

The current METAR for Stanstead in the UK says: EGSS 031520Z AUTO 29011KT 9999 FEW021/// //////TCU 07/02 Q1022 I do not know how to interpret the /// and //////. From what I remember multiple ...
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5answers
963 views

Why do NOTAMs consist of code instead of plain language?

I'm currently getting thru a PPL course book and I don't understand this. Is there any purpose of sending NOTAMs in this format: "RWY 08R/26L DUE WIP NO CENTRELINE, TDZ OR SALS LIGHTING AVBL" ...
9
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2answers
971 views

How are METARs published?

I use https://flightplanning.navcanada.ca to get METARs and TAFs for my local stations. While listening to CYPK tower at work I noticed something in the header of my VLC: That's a METAR! But why ...
7
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2answers
6k views

How to programmatically access AIP data, METAR, TAF, NOTAMs?

I'm looking at developing an app where one of the functions I would like to implement needs to use data which is normally available in AIP, like: Aerodrome names, ICAO codes, GPS location, elevation ...
6
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1answer
190 views

Why the “Terminal” in Terminal Aerodrome Forecast?

Why isn't it just called Aerodrome Forecast? Where does the "terminal" part come from?
5
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2answers
6k views

How should I interpret this TAF involving TEMPO and BECMG blocks?

with the reference in the TAF below , I was looking for the VIS at 0500 UTC and I was little bit confused because of the " TEMPO " And the TAF was ...
5
votes
1answer
4k views

Why are min and max temperatures (TN TX) not published in TAFs in the United States?

I know that other countries like Brazil, Argentina, etc. do publish minimum and maximum temperatures in their Terminal Aerodrome Forecasts, abbreviated TN and TX. But why are they not shown in TAFs in ...
5
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2answers
368 views

What is the date of first use of the TAF format?

Unlike METAR and NOTAM, I cannot find any history on Terminal Aerodrome Forecast (TAF). Any hint as to the age of the format would be appreciated.
4
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1answer
190 views

Is “11/2SM” a typo in this TAF message?

In a TAF-message downloaded from NOAA I came across "11/2SM" as the reported visibillity. I have previously seen "1 1/2SM" which I've been told to read as 1.5 SM. is "11/2SM" a typo (should it have ...
3
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4answers
895 views

How can an inexperienced pilot tell if the weather is good enough for flying?

When I look at weather in the morning of my flight, it looks good. However, the actual determination can be made later during the day closer to my flight time. Being a student pilot, how can I ...
3
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1answer
115 views

Is the “PROB” in a TAF only applying to the next group or all following ones?

Let's assume I have a TAF that reads: [...] PROB40 TEMPO 0815/0822 5000 -SHSN BKN008 OVC015 TEMPO 0822/0909 1000 SN VV003 BECMG 0902/0904 16012KT Which of the <...
3
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2answers
1k views

How to interpret BECMG and TEMPO in TAF?

I'm still confused on the change indicator BECMG. I am sure of the definition of TEMPO being only a temporary fluctuations in the time frame given, but will a TAF with a change of BECMG continue on ...
2
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1answer
898 views

What are the duration of TAFs?

TAFs (terminal aerodrome forecast) have different durations. Some forecasts 30 hours into the future while others forecasts only 24 hours. But what is the shortest and longest TAFs? and how often are ...
1
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0answers
165 views

Did these weather conditions require the airline to cancel a flight? [duplicate]

[I do not believe this question duplicates a previous question, which involves different conditions and circumstances] I'm interested in the airline's response to a query of mine about why a flight ...
0
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1answer
83 views

1.VRB02KT: Is it varying more or less than 180°? 2.VRB03KT: Is it surely varying more than 180°? [duplicate]

Based on the following ICAO Annex 3 criteria for the use of the abbreviation VRB (not FAA, which is different and evident): when the total variation is 60° or more and less than 180° and the wind ...
0
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0answers
29 views

How to get NOTAM, METAR, TAF data? [duplicate]

I'm looking for weather services where I can export weather information via API request or something like that (Especially interested in NOTAM, METAR, TAF). The most ideal option is not just for a ...