Space Weather Outlook October 18, 2015 at 09:02PM

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #15-42 2015 October 18 at 6:51 p.m. MDT (2015 October 19 0051 UTC) **** SPACE WEATHER OUTLOOK **** Summary For October 12-18 G1 (Minor) geomagnetic storms were observed on 12, 14 and 18 October due to effects from positive polarity coronal hole high speed streams. R1 (Minor) radio blackouts were observed on 15-17 October from flare activity from Regions 2434 and 2437. No S1 (Minor) or greater solar radiation storms were observed. Outlook For October 19-25 R1 (Minor) radio blackouts are likely through the outlook period due to potential flare activity from Regions 2434 and 2437. No G1 (minor) or greater geomagnetic storms are expected. No S1 (Minor) or greater solar radiation storms are expected. 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.