Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #14-43 2014 October 27 at 1:02 a.m. MDT (2014 October 27 0702 UTC) **** SPACE WEATHER OUTLOOK **** Summary For October 20-26 Category R1 (Minor) radio blackouts were observed on 21-24 October and again on 26 October. A category R2 (Moderate) radio blackout was observed on 22 October. Category R3 (Strong) radio blackouts were observed on 22 and 24-26 October. Radio blackouts were due to flaring activity from Region 2192. Category G1 (Minor) geomagnetic storming was observed on 20 October due to coronal hole high speed stream activity. Outlook For October 27-November 2 Category R1-R3 (Minor-Strong) radio blackouts are likely from 27-30 October due to potential significant flare activity from Region 2192. There is a chance for an S1 (Minor) solar radiation storm from 27-31 October due to potential significant flare activity from Region 2192. 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.