Space Weather Outlook August 21, 2017 at 12:42AM

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #17-34 2017 August 20 at 10:31 p.m. MDT (2017 August 21 0431 UTC) **** SPACE WEATHER OUTLOOK **** Summary For August 14-20 An R1 (Minor) radio blackout was observed on 20 August due to flare activity from active sunspot Region 2672. G1 (Minor) geomagnetic storm levels were observed from 17-20 August due to coronal hole high speed stream effects. Outlook For August 21-27 There is a chance for R1-R2 (Minor-Moderate) radio blackouts for the forecast period (21-27 August) due to flare potential from Regions 2671 and 2672. 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.

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