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(Computerworld)   The National Weather Service went live this morning with two new forecasting super computers capable of getting the weather wrong at even faster speeds and in greater resolution   (computerworld.com) divider line 3
    More: Cool, National Weather Service, National Oceanic and Atmospheric Administration, supercomputers, weather forecasts, decimals, parallel, weather, linux  
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918 clicks; posted to Geek » on 26 Jul 2013 at 1:24 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-07-26 04:43:32 PM  
1 votes:

E_Henry_Thripshaws_Disease: do they use COBOL?


HWRF is mostly written in FORTAN, as is GFS.
2013-07-26 02:54:14 PM  
1 votes:

born_yesterday: HotIgneous Intruder: weather channels will still be all death and disaster all the time, in between shows with guys shooting ice bergs and people whacking rocks with hammers.

The winter storm forecasting has become so apocalyptic in our area that I can't take it seriously anymore.  Multiple times over the past few years, they've predicted heavy snowfall (6-8 in.; heavy for the DC Metro area), and we haven't gotten so much as a farking flake.


Snow forecasting in my neck of the woods (near Portland, Oregon) is also hit-or miss, and a few miles can mean the difference between a trace and several inches. If you read they NWS forecast discussions you'll find that the more experienced meteorologists often question the computer models if they think the models are off (usually too likely to predict a snowfall). On the other hand, the lead stories in the local media are typically OMG SNOWPOCALYPSE!!!
2013-07-26 02:13:44 PM  
1 votes:

born_yesterday: HotIgneous Intruder: weather channels will still be all death and disaster all the time, in between shows with guys shooting ice bergs and people whacking rocks with hammers.

The winter storm forecasting has become so apocalyptic in our area that I can't take it seriously anymore.  Multiple times over the past few years, they've predicted heavy snowfall (6-8 in.; heavy for the DC Metro area), and we haven't gotten so much as a farking flake.


It's the Congressional Thermal Updraft that keeps the snow away.

I've got a friend that worked on implementing the algorithms for this. She's really smart, but weather prediction is a good example of a system with non-linear dynamics.
 
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