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 #09- 30
2009 July 28 at 10:31 a.m. MDT (2009 July 28 1631 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For July 20-26 Category G1 (Minor) and G2 (Moderate) geomagnetic storms occurred on 22 July. The storms were due to the onset of a coronal hole high-speed solar wind stream.

Outlook For July 29-August 4 No space weather storms are 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 http://swpc.noaa.gov/advisories or (303) 497-5127.


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