Space Weather Outlook December 27, 2015 at 07:39PM

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #15-52 2015 December 27 at 5:28 p.m. MST (2015 December 28 0028 UTC) **** SPACE WEATHER OUTLOOK **** Summary For December 21-27 G1 (Minor) and G2 (Moderate) geomagnetic storms were observed on 21 December due to coronal mass ejection effects. G1 (Minor) geomagnetic storms were observed on 26 December due to effects from a geoeffective coronal hole high speed stream (CH HSS). R1 (Minor) radio blackouts were observed on 21-24 December due to flare activity from active Regions 2472 and 2473. No Solar Radiation storms were observed during the summary period. Outlook For December 28-January 3 G1 (Minor) geomagnetic storms are likely on 02 January due to effects from a geoeffective CH HSS. R1 (Minor) radio blackouts are likely through 03 January, primarily from active Region 2473. No solar Radiation storms are expected throughout the outlook 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 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.

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