Official Space Weather Advisory issued by NOAA Space Weather Prediction Center
Boulder, Colorado, USA
SPACE WEATHER ADVISORY OUTLOOK #25-47
2025 December 21 at 8:51 p.m. MST (2025 December 22 0351 UTC)
**** SPACE WEATHER OUTLOOK ****
Summary For December 15-21
G1 (Minor) geomagnetic storm levels were observed on 17 and 21 Dec. R1 (Minor) radio blackouts were observed on 19-21 Dec.
Outlook For December 22-28
G1 (Minor) geomagnetic storm levels are expected on 22-23 Dec.
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
