Johnoly
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{Apologies for the duplicate FL & CA posts, but there is no singular USA section and this affects both coasts}
If you think Windfinder / Magic Seaweed / Surfline / Wunderground / etc, / etc does wave height forecasts without the numbers from NOAA, then you don't know who owns the millions of dollars in satellites, buoy's, and super fast computers to crunch that mountain of data. They all get info from NOAA to publish their websites.
Since last week NOAA has been converting and changing the wave model database. This is the same database that all the popular websites use to publish their own forecasts. On Tuesday NOAA announced the new changes. They have discontinued the previous " Global Wave Ensemble System (GWES) ". This is the raw database websites forecast waves from.
They now revamped everything and the new database is called " GEFSv12 ". The biggest change beside increased forecasting accuracy is that now all your favorite WAVE websites will be going from 10 days up to 16 days. In backwards testing, they are achieving 98% accuracy 36hrs out and 60% accuracy at 16 days out which is really good. But it's going to take all the websites a few weeks to update their software to see all the new fields in the new database. Even NOAA's sites are not up yet and they will be one of the first to come on line. When you see your favorite website go to a full 16 days, you'll know they are finally using the newest GEFSv12 database info from NOAA with greater accuracy. Keep a lookout for the change on your favorite wave height forecast website !!
If you think Windfinder / Magic Seaweed / Surfline / Wunderground / etc, / etc does wave height forecasts without the numbers from NOAA, then you don't know who owns the millions of dollars in satellites, buoy's, and super fast computers to crunch that mountain of data. They all get info from NOAA to publish their websites.
Since last week NOAA has been converting and changing the wave model database. This is the same database that all the popular websites use to publish their own forecasts. On Tuesday NOAA announced the new changes. They have discontinued the previous " Global Wave Ensemble System (GWES) ". This is the raw database websites forecast waves from.
They now revamped everything and the new database is called " GEFSv12 ". The biggest change beside increased forecasting accuracy is that now all your favorite WAVE websites will be going from 10 days up to 16 days. In backwards testing, they are achieving 98% accuracy 36hrs out and 60% accuracy at 16 days out which is really good. But it's going to take all the websites a few weeks to update their software to see all the new fields in the new database. Even NOAA's sites are not up yet and they will be one of the first to come on line. When you see your favorite website go to a full 16 days, you'll know they are finally using the newest GEFSv12 database info from NOAA with greater accuracy. Keep a lookout for the change on your favorite wave height forecast website !!
