Space Weather Outlook September 25, 2017 at 12:04AM

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #17-39 2017 September 24 at 9:51 p.m. MDT (2017 September 25 0351 UTC) **** SPACE WEATHER OUTLOOK **** Summary For September 18-24 G1 (Minor) geomagnetic storm conditions were observed on 18 Sep due to coronal hole high speed stream influence. No other significant space weather was observed during the summary period. Outlook For September 25-October 1 G1 (Minor) geomagnetic storms are likely on 27 and 29 Sep while G2 (Moderate) geomagnetic storms are likely on 28 Sep, all due to effects from the anticipated arrival of a recurrent coronal hole high speed stream. No other siginificant space weather is expected for 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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