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> RAP officially replaces RUC
NYCSuburbs
post May 1 2012, 05:51 PM
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I can't find an official statement yet, although the update to the RUC that's been needed for a long time has finally been made as the RAP (which I think is also the RR) replaced the RUC today. The RAP from what I've heard, and if it's the RR then also from what I've observed, has a better verification rate than the old RUC, and will hopefully be a more useful tool throughout this summer and into next winter.

Every site I've seen has upgraded to the new RAP. Twisterdata, which had 12-hour RUC maps previously, now has 18-hour RAP maps.
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Superstorm93
post May 1 2012, 06:56 PM
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I remember the beta RUC-X (or maybe the RAP-X) was commissioned way back in 2005 or so.

The RAP is a huge upgrade for now-casting and short-term forecasts, and should pave the way for the HRRR to completely take over for the RAP in 2014 or 2015. Very exciting times in the world of meteorology.


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Millersville University Meteorology Major

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NYCSuburbs
post May 1 2012, 07:47 PM
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QUOTE(Superstorm93 @ May 1 2012, 07:56 PM) *
I remember the beta RUC-X (or maybe the RAP-X) was commissioned way back in 2005 or so.

The RAP is a huge upgrade for now-casting and short-term forecasts, and should pave the way for the HRRR to completely take over for the RAP in 2014 or 2015. Very exciting times in the world of meteorology.

Hopefully they get a good amount of work done on the HRRR before that happens... when comparing the two, the HRRR has better graphics and resolution, but from my experience the RAP seems better than the HRRR in terms of accuracy.
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NorEaster07
post May 1 2012, 07:50 PM
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Good heads up on this. Here's the link noaa posted. http://www.noaanews.noaa.gov/stories2012/2...1_rapmodel.html


--------------------
Snow Totals Per Season:

2007-08: 21"
2008-09: 41"
2009-10: 39.5"
2010-11: 71.5"
2011-12: 14"
2012-13: 46.5"
2013-14: 56.75"

Average(BDR since 1950) = 27.75"
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NYCSuburbs
post Jul 9 2012, 10:49 PM
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After a little over 2 months, there's already been some improvements with the RAP from what I noticed with how it handles storms, but I've noticed one very clear bias - the RAP likes to significantly exaggerate heat.

For example, take the RAP's performance for 7/7's temperatures - this is what it had for hour 17 (19z - 3 PM) with its 2z run:

Attached Image


Yet it initialized with these temperatures with its 19z run - that's much cooler than what it initially showed:

Attached Image


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