METAR: new stations, better quality

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par
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METAR: new stations, better quality

Post by par » Fri Nov 28, 2014 1:23 pm

Today we have released a huge update to METAR weather tracking in YoWindow.

NOTE: At the moment this update is only available in YoWindow for Windows and Mac.
We will release it for other platforms as soon as we are confident in the quality.

So what's new?

1. Automatic switch between METAR stations.
If some weather station doesn't work in the night or on the weekend we used to black-list it forever.
YoWindow was reporting from the next METAR that could be hundred miles away.

Now when some METAR station "A" stops reporting, YoWindow automatically switches to the next available at the moment "B".
YoWindow is watching for "A" activity and switches back as soon as "A" becomes online again.

2. Measure weather closer to your place.
Some METAR stations are reporting a limited amount of data.
It may be just temperature and wind speed.
These stations are usually automatic METARS.
They were also blacklisted for the past 5 years in YoWindow.

Now missing parameters are added to incomplete METAR "A" from the next available METAR "B".
Eventually the temperature, wind speed and pressure are measured closer to the user, than it used to be.

3. YoWindow METAR data-base has been upgraded since a long time ago.
Here's the fresh list of METAR stations available in YoWindow.
http://www.aviationweather.gov/static/a ... ations.txt

In some countries we fall back to Open Weather Map if location is extremely far away from the closest METAR station.

We expect to eliminate "weather expired" errors with this update.
So if you found a location with "weather expired" warning, please let me know.

Big thanks to our friend Askar for the help with programming these feature.

Pasha
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steve03222
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Re: METAR: new stations, better quality

Post by steve03222 » Fri Nov 28, 2014 3:00 pm

Is this new version b13? I see on main page version 4 , but that is the version I have.
Just a bit confused what to download for all these nice new improvements.
Steve

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Re: METAR: new stations, better quality

Post by par » Fri Nov 28, 2014 4:54 pm

Oh, yeah, I forgot to mention that there's no need to update the application.
The update was on YoWindow server side.
Also, this change should improve current weather quality for a small fraction of users. I'd say 2 - 5 percent.
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Re: METAR: new stations, better quality

Post by countryroads » Sat Nov 29, 2014 1:38 am

Hi Pasha,

We talked about this a long time ago.
I am glad to see it.

Research stations should not be switched.

Mount Washington station is at the top of the mountain making it the Windiest station in the world.
The closest station to it is down in the valley which is no longer windy!

Alert is the farthest north and reports 6 times a day.
Eureka is the most active station in the North Polar region.
It reports 21 times a day.
Amundsen-Scott is the farthest south and reports a few times a day.

The above need to stay as their own METAR station and should not switch.

Marty

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Re: METAR: new stations, better quality

Post by par » Sat Nov 29, 2014 12:28 pm

Marty, can you help me with the list of ICAO codes for research stations?
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Re: METAR: new stations, better quality

Post by countryroads » Sun Nov 30, 2014 1:02 am

Hi Pasha,

Here are the 4 listed above.

KMWN - 5094284; Mount Washington/New Hampshire/USA
CYLT - 6295922; Alert/Canada
CWEU - 6295804; Eureka/Canada
NZSP - 6299995; Amundsen-Scott South Pole Station/Antarctica

I will try to track down more later.

Marty

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Re: METAR: new stations, better quality

Post by knopfler83 » Tue Dec 02, 2014 9:39 pm

goodnight to the town of anguita or port navacerrada (Spain) the nearest station is more than 100 km, there is something to solve this problem ?? It is a long distance to trust a climate .....

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par
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Re: METAR: new stations, better quality

Post by par » Wed Dec 03, 2014 6:48 am

countryroads wrote:Hi Pasha,

Here are the 4 listed above.

KMWN - 5094284; Mount Washington/New Hampshire/USA
CYLT - 6295922; Alert/Canada
CWEU - 6295804; Eureka/Canada
NZSP - 6299995; Amundsen-Scott South Pole Station/Antarctica

I will try to track down more later.

Marty
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knopfler83
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Re: METAR: new stations, better quality

Post by knopfler83 » Wed Dec 03, 2014 4:09 pm

Hi pasha!! when it starts to run this improvement ??'ll be testing these days, and inform you if a town where I usually go as usual or not ... ok ?? Thank you !!!

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Re: METAR: new stations, better quality

Post by knopfler83 » Thu Dec 04, 2014 7:54 am

good morning, sorry if I preunto the same thing several times, but with the language and the translator did not get along .... my question is: now with improved METAR, if a town that is 100 km or more from the nearest station, where you get the information ?? sorry sipregunto something that has been talked about guys ... Thanks

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