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-------- Original Message -------- 252 NOUS41 KWBC 071322 PNSWSH Technical Implementation Notice 12-29 National Weather Service Headquarters Washington DC 922 AM EDT Thu Jun 7 2012 To: Subscribers: -Family of Services -NOAA Weather Wire Service -Emergency Managers Weather Information Network -NOAAPORT Other NWS Partners and NWS Employees From: Eli Jacks Chief, Fire and Public Weather Services Branch Subject: Operational Ultraviolet Radiation Grids in the National Digital Guidance Database (NDGD), Effective Tuesday, July 10, 2012, for CONUS Only Effective Tuesday, July 10, 2012, at 1400 Coordinated Universal Time (UTC), NWS is making the following three ultraviolet radiation grids operational in the National Digital Guidance Database (NDGD) for the Conterminous United States (CONUS) only: -Ultraviolet Index, for each daylight hour out to 48 hours -Daily Maximum Ultraviolet Index, once per day out to 120 hours -Downward Short Wave Radiation Flux, for every third daylight hour out to 120 hours These grids have been produced experimentally since March 2011. See the link below for further information. http://www.nws.noaa.gov/os/notification/pns11ndgd_uv_grids.txt These grids are derived automatically from the 1200 UTC model run of the Global Forecast System (GFS) for CONUS. More detail regarding these grids is available in a Product Description Document (PDD) online at: http://products.weather.gov/viewlist.php To access the operational grids use the following urls AFTER 1400 UTC, July 10, 2012: For ftp access: ftp://tgftp.nws.noaa.gov/SL.us008001/ST.opnl/DF.gr2/DC.ndgd/GT.dn ggfs For http access: http://weather.noaa.gov/pub/SL.us008001/ST.opnl/DF.gr2/DC.ndgd/GT .dnggfs More information on what the UV Index is and how it is computed is available online at: http://www.cpc.ncep.noaa.gov/products/stratosphere/uv_index/uv_wh at.shtml http://www.cpc.ncep.noaa.gov/products/stratosphere/uv_index/uv_co mpute.shtml General information on accessing and using NDGD elements is available online at: http://www.weather.gov/ndgd/technical.shtml For technical questions regarding NDGD data, please contact: David Ruth Chief, Mesoscale Prediction Branch National Weather Service Office of Science and Technology Silver Spring Maryland 20910 David.Ruth@xxxxxxxx For questions regarding this notice, please contact: Jannie G. Ferrell National Weather Service Office of Climate Water and Weather Services Silver Spring Maryland 20910 Jannie.G.Ferrell@xxxxxxxx National Technical Implementation Notices are online at: http://www.weather.gov/os/notif.htm $$
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