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- 25
2011 May 31 at 03:09 p.m. MDT (2011 May 31 2109 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For May 23-29 Category G1 (Minor) and G2 (Moderate) geomagnetic storms occurred on 28 - 29 May due to a coronal hole high-speed stream. R1 (Minor) radio blackouts occurred on 28 - 29 May due to solar flares on the Sun.

Outlook For June 1-7 Category R1 (Minor) radio blackouts are possible through 09 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.