Space Weather Outlook August 27, 2017 at 11:48PM

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #17-35 2017 August 27 at 9:37 p.m. MDT (2017 August 28 0337 UTC) **** SPACE WEATHER OUTLOOK **** Summary For August 21-27 G1 (Minor) geomagnetic storm levels were observed on 22-23 August while G2 (Moderate) geomagnetic storm levels were observed on 22 August due to coronal hole high speed stream effects coupled with prolong periods of southward Bz. Outlook For August 28-September 3 G1 (Minor) geomagnetic storm levels are likely on 31 August due to the arrival of a positive polarity coronal hole high speed stream. 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.