Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #15-11 2015 March 16 at 1:29 a.m. MDT (2015 March 16 0729 UTC) **** SPACE WEATHER OUTLOOK **** Summary For March 9-15 R1 (Minor) radio blackouts occurred from 09-15 March with R2 (Moderate) radio blackouts on 09-10 March and R3 (Strong) radio blackouts on 11 March due to flare activity from active sunspot Region 2297. Outlook For March 16-22 R1 to R2 (Minor to Moderate) radio blackouts are likely with a slight chance for R3 (Strong) due to further significant flare activity from Region 2297 until it rotates off the visible disk on 19 March. G1 (Minor) geomagnetic storms are likely on18 March due to the arrival of a coronal mass ejection (CME) that originated on15 March. There is a chance for an S1 (Minor) solar radiation storm until 21 March due to potential significant flare activity from Region 2297 as well as a shock enhancement from the 15 March CME 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.