NOAA / Space Weather Prediction Center

SWPC Space Weather Advisory

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

2011 February 22 at 12:53 p.m. MST (2011 February 22 1953 UTC)


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.

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.