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

SPACE WEATHER ADVISORY OUTLOOK #11- 9
2011 February 22 at 12:53 p.m. MST (2011 February 22 1953 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For February 14-20
R1 (Minor) radio blackouts were observed on 14, 16 and 18 February along
with R2 (Moderate) radio blackouts on 15 and 18 February. This activity
was due to solar flares from Active Regions 1158, 1161 and 1162.

Outlook For February 23-March 1
R1 (Minor) radio blackouts are possible through 25 February.

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