NOAA / Space Weather Prediction Center

SWPC Space Weather Advisory

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

SPACE WEATHER ADVISORY OUTLOOK #11- 29
2011 June 21 at 11:02 a.m. MDT (2011 June 21 1702 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For June 13-19 No space weather storms were observed.

Outlook For June 22-28 A category G1 (Minor) geomagnetic storm is expected on 24 June with a chance for isolated G2 (Moderate) periods due to the arrival of a halo CME observed early on 21 June.

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 http://swpc.noaa.gov/advisories or (303) 497-5127.


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