NOAA / Space Weather Prediction Center

SWPC Space Weather Advisory

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

2016 April 17 at 9:37 p.m. MDT (2016 April 18 0337 UTC)


Summary For April 11-17

Category G1 (Minor) geomagnetic storms were observed on 12-14 April due to effects from a negative polarity coronal hole high speed stream.

Outlook For April 18-24

Category R1-R2 (Minor-Moderate) radio blackouts are possible on 18-19 April as active Region 2529 approaches and exits the west limb.

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.