NOAA / Space Weather Prediction Center

SWPC Space Weather Advisory

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

2011 October 25 at 2:00 p.m. MDT (2011 October 25 2000 UTC)


Summary For October 17-23

Space weather was at minor levels during the week. Isolated Category R1 (Minor) Radio Blackouts occurred during 20 - 22 October due to moderate-sized solar flares. A brief Category S1 (Minor) Solar Radiation Storm occurred on 23 October following a solar flare near the Suns west limb on 22 October.

Outlook For October 26-November 1

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 or (303) 497-5127.

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