Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #14-11 2014 March 16 at 9:05 p.m. MDT (2014 March 17 0305 UTC) **** SPACE WEATHER OUTLOOK **** Summary For March 10-16 Category R1 (Minor) radio blackouts were observed from 10 - 13 March due to flare activity from active solar Regions 1991, 1996 and 2002. A Category R2 (Moderate) radio blackout was observed on 12 March due to flare activity from active solar Region 1996. Category G1 (Minor) geomagnetic storms were observed on 13 March due to coronal hole high speed stream activity. Outlook For March 17-23 A chance for Category R1 (Minor) radio blackouts exists on 23 March as old Region 1991 rotates back onto the visible disk. 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.