NOAA / Space Weather Prediction Center
Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA
SPACE WEATHER ADVISORY OUTLOOK #15-42
2015 October 18 at 6:51 p.m. MDT (2015 October 19 0051 UTC)
**** SPACE WEATHER OUTLOOK ****
Summary For October 12-18
G1 (Minor) geomagnetic storms were observed on 12, 14 and 18 October due to effects from positive polarity coronal hole high speed streams.
R1 (Minor) radio blackouts were observed on 15-17 October from flare activity from Regions 2434 and 2437.
No S1 (Minor) or greater solar radiation storms were observed.
Outlook For October 19-25
R1 (Minor) radio blackouts are likely through the outlook period due to potential flare activity from Regions 2434 and 2437.
No G1 (minor) or greater geomagnetic storms are expected.
No S1 (Minor) or greater solar radiation 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.
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