NOAA / Space Weather Prediction Center

SWPC Space Weather Advisory

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

2012 October 21 at 9:04 p.m. MDT (2012 October 22 0304 UTC)


Summary For October 15-21

A Category R2 (Moderate) Radio Blackout occurred on 20 October and a Category R1 (Minor) Radio Blackout occurred on 21 October. Both Radio Blackouts were due to solar flares from a sunspot region near the southeast limb.

Outlook For October 22-28

Category R1 (Minor) Radio Blackouts are likely throughout the period.

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.