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

SPACE WEATHER ADVISORY OUTLOOK #11-47
2011 October 25 at 2:00 p.m. MDT (2011 October 25 2000 UTC)

**** SPACE WEATHER OUTLOOK ****

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 Sun's west limb on 22 October.

Outlook For October 26-November 1

No space weather storms are expected.

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. More 
information is available at SWPC's Web site http://swpc.noaa.gov