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

SPACE WEATHER ADVISORY OUTLOOK #18-38
2018 September 16 at 7:56 p.m. MDT (2018 September 17 0156 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For September 10-16

G1 (Minor) geomagnetic storm levels were reached on 10 Sep and 14 Sep due to coronal hole influence.

G2 (Moderate) geomagnetic storm levels were reached on 11 Sep due to coronal hole influence.


Outlook For September 17-23

No significant spaceweather is expected for the outlook period.

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