Nam forecast not working

[Mike Bomstad]

NAM forecast has been down for 2 days now., anyone else seeing this?

[Martin Machacek]

Yes. Same here. 

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Martin

On Mar 26, 2017, at 12:08, Mike Bomstad <m.bo...@comcast.net> wrote:

NAM forecast has been down for 2 days now., anyone else seeing this?

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[Ron Gleason]

The NWS modeling people (NCEP) made some significant changes and updates to the NAM modeling suite effective 03/21 or 03/22. These changes were announced several months ago and a chance was given allowing user web services to test their code. I notified DrJack recently. It looks like changes to the NAM 13KM grid files should have been minimal. But, whenever there are big production suite changes, inevitably it breaks something in the user code. Dr Jack and Chris Ghali of XCSkies will probably figure it out in time. 

These changes are called NAM v4... and it will be the last of this system. Development will be frozen from here on out. The 13km NAM remains with the same 13km resolution and forecasts out 84hours but with numerous physics and production changes. The NAM high resolution model now runs at 3km instead of 4km with hourly output to 60 hours. 

Don't complain to NWS about this... support your local soaring web services provider. 

[FlysansPower]

The NAM has not worked for me over the past 5 days in AL and TN

[John Godfrey (QT)]

It is very disappointing that a service I PAY for had months to prepare for this announced model data change and has now been offline for over a week.
Folks may want to consider a subscription to SkySight as an alternative.

[Chris Galli]

We hear you John. And we hear everyone else who has chimed in as this soaring season is starting to heat up here in North America. Thanks for the feedback and criticism. It's the relentless demand for newer and better data and visualization techniques that keeps this project moving forward (albeit, a little slow at times).

The NAM 12km model run will be brought back to life in current version of XC Skies for the next week until the new version of XC Skies is released. You should start seeing it over the next hour. We knowingly let that drop on the floor because the new XC Skies (V3) was to be released by March 15. It got pushed back a couple of weeks. So in short: "Yeah, we kinda blew that one, and we apologize."

Within the next 10 days you can expect to have more soaring information in one place than has ever been previously available. The model run down looks like this:

HRRR 3km native sigma levels (yes, for those who understand what that means, you read that right) for all 18 hours run every 6 hours. This is a tremendous amount of information for the U.S.
NAM 12km (the one we let drop as you noted) hourly through 36 hours and then 3 hourly through 84 hours.
NAM 3km is available as of last week running for CONUS on the exact same grid as HRRR 3km. All available hours are in XC Skies V3.
RAP 13km for all hourly forecasts run every 6 hours.
GFS .25 degrees, hourly for 5 days.
GFDS Global Canadian model at .25 degrees, 3 hourly for 48 hours, then 6 hourly through 4 days.
* all of these models are still parameterized to 1km resolution.

A few nice features:
1. A single mouse click on the map will instantly show all underlying values of the map overlay for ALL available models at the particular hour and location.
2. Click anywhere on the map to start a route for any model available.
3. Click anywhere on the map to view a point forecast for any model out through all available data. In the case of GFS, that's 5 days of hourly data available via an interactive plot within a second or so.
4. Click anywhere on the map to view interactive simple SkewT plots and Hodographs of any location for any model. You can even animate multiple days of SkewT plots to see the detailed evolution of the soaring window at hourly steps.
5. Animated winds for any wind level and surface winds.
6. Wind streamlines.
7. Custom coloring, thresholding and masking of values for any layer. This is useful to pull out the underlying values within sensitive areas.
...and quite a bit more, but that's what I can think of off the top of my head.


Other improvements:
1. Speed, speed speed. The entire weather engine was rewritten from the ground up, and you will notice the difference immediately.
2. Fully functional on any recent mobile device. That means smart phones, tablets, iPad, etc. iPhone 4+ and Android 3.2+

Coming soon, but not in this first V3 release:
1. Create your own custom layer that will find the intersection of conditions that you are interested in. This is to replace the "XC Potential" layer that we've always cringed a little every time it's mentioned for the obvious reasons.
2. Share what you're seeing with friends via Facebook or Twitter with just a few clicks.
3. Airports overlay and geographical features of interest (peak names, passes, etc.); the markers that many of us pilots fly by...

Well, you get the gist of what's coming. Attached (pasted here) is a screen shot of the main map. We're keeping the similar look and feels of XC Skies through this first release to make sure we can transition folks to the new tools without too much of a learning curve.

There's only a handful of bugs to sort out on our list and then you'll have full access to this new version. Same cost. No gimmicks. No advertising clutter etc. Just more useful data for our community. I don't know anything about Sky Sight, but more resources to compare a day's soaring potential sounds great to us!

Cheers (and sincere apologies for the NAM debacle),

Chris Galli

#NAMGate

[iain frew]

Awesome news about v3!

Thanks Chris,looking forward to it.

 

Sent from my Windows 10 phone

[Mike Ash]

Thank you for the comprehensive update. It all sounds great. I just subscribed to SkySight as an alternate, but I'll no doubt be renewing my subscription to XCSkies once this update shows up. I love the service and hope to get a lot of use out of it in the future.

Mike

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[John Godfrey (QT)]

Chris,

Thanks for the prompt response.  The new version looks quite interesting.  Hope you can maintain your release schedule.

I will not sugar coat that being a CD and having one of my go-to sites unavailable during the Sailplane Grand Prix here at Seminole Lake has been frustrating – especially with no explanatory postings from xcskies.

Again, thanks for getting the old model available again.

QT

 

John Godfrey (QT)

QT Solutions, LLC

3705 Windy Hill Road

Chapel Hill, NC 27514-9608

USA

+1 412 977 6379

mailto:quebec...@gmail.com

Chair, SSA Foundation Trustees

Treasurer, MIfflin Soaring Association

 

 

From: Chris Galli [mailto:xcs...@xcskies.com]
Sent: Thursday, March 30, 2017 7:24 PM
To: John Godfrey (QT) <quebec...@gmail.com>; XC Skies <xcs...@googlegroups.com>
Subject: Re: [XC Skies:677] Re: Nam forecast not working

 

We hear you John. And we hear everyone else who has chimed in as this soaring season is starting to heat up here in North America. Thanks for the feedback and criticism. It's the relentless demand for newer and better data and visualization techniques that keeps this project moving forward (albeit, a little slow at times).