NOAA / Space Weather Prediction Center

SWPC Space Weather Advisory

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

2016 December 18 at 6:01 p.m. MST (2016 December 19 0101 UTC)


Summary For December 12-18

No significant space weather was observed during the summary period.

Outlook For December 19-25

G1 (Minor) geomagnetic storms are likely on 21-22 December due to influences from recurrent, positive polarity CH HSSs.

No other significant space weather is expected.

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.