Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #14-50 2014 December 14 at 6:55 p.m. MST (2014 December 15 0155 UTC) **** SPACE WEATHER OUTLOOK **** Summary For December 8-14 A G1 (minor) geomagnetic storm was observed on 12 December. R1 (minor) radio blackouts were observed on 13 and 14 December. No S1 (minor) or greater space radiation events were observed, although 10 MeV proton flux at geosynchronous orbit was enhanced on 14 December, with a maximum flux of 2.5 pfu. Outlook For December 15-21 R1 or greater radio blackouts are possible throughout the forecast period. There is a chance for G1 (minor) storm conditions on 28 Dec through 09 Jan in response to recurrent high speed solar wind features. There is a slight chance for an S1 (minor) or greater space radiation event through the forecast period. Data used to provide space weather services are contributed by NOAA, USAF, NASA, NSF, USGS, the International Space Environment Services and other observatories, universities, and institutions. More information is available at SWPC's Web site http://swpc.noaa.gov Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact SWPC Help.