NOAA / Space Weather Prediction Center

SWPC Space Weather Advisory

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA

2017 November 26 at 8:21 p.m. MST (2017 November 27 0321 UTC)


Summary For November 20-26

G1 (Minor) geomagnetic storm levels were observed on 21 Nov due to CH HSS effects.

No other significant space weather was observed during the summary period.

Outlook For November 27-December 3

G1 (Minor) geomagnetic storm conditions are likely on 29 Nov due to recurrent CH HSS influence coupled with effects from a CME observed on 25 Nov.

No other significant space weather is expected during the outlook period.

For current space weather conditions see: Space Weather Now, Today's Space Weather and Space Weather Alerts

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. For more information, including email services, see SWPC's Space Weather Advisories Web site or (303) 497-5127.

NOAA Space Weather Scales - Description of catagories used in Outlooks.