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 #11- 13
2011 March 15 at 10:31 a.m. MDT (2011 March 15 1631 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For March 7-13 A category G1 (Minor) geomagnetic storm occurred on 11 March due to the mixed effects of a coronal hole high-speed stream and the arrival of a coronal mass ejection. A category S1 (Minor) solar radiation storm was observed from 8-10 March due to solar activity from active sunspot Region 1164. Category R3 (Strong) and R2 (Moderate) radio blackouts were observed on 9 March due to solar activity from active sunspot Region 1166 and on 8 March due to solar activity from active sunspot Region 1665, respectfully. Several R1 (Minor) radio blackouts were observed throughout the period due to elevated solar activity.

Outlook For March 16-22 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.