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A minor (G1) geomagnetic storm watch will be in effect beginning January 18th. A solar wind flowing from a middle latitude coronal hole will soon become geoeffective. Sky watchers at higher latitudes should be alert for visible aurora beginning Wednesday. More updates to follow.
January 15, 2017 @ 01:05 UTC
Good evening. Here is an updated look at the visible solar disk as we head into Sunday. Solar activity is at very low levels. Both visible regions are currently stable and do not appear to be very threatening. Geomagnetic activity is also quiet and we do not expect an increase until after January 18th when Coronal Hole # 54 becomes geoeffective. More updates in the days ahead. Image below courtesy of the Solar Dynamics Observatory (SDO).
January 12, 2017 @ 20:10 UTC
East Limb Eruption
The first real solar eruption of 2017! A filament eruption registering as a C3.8 Solar Flare on Thursday collapsed and launched a nice stream of plasma into space. Because the eruption was not facing Earth, it will be directed towards the east and away from our planet. Video courtesy of the Solar Dynamics Observatory (SDO) using the 304 angstroms channel. Coronagraph video courtesy of LASCO C2.
Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.
UPDATED 2017 January 17 0030 UTC
.24 hr Summary...
Solar activity was at very low levels. Region 2625 (N01E18, Hsx/alpha)
briefly developed some small spots behind the leader spots but they
quickly decayed. Region 2626 (N08E29, Hax/alpha) was stable during
the reporting period. No Earth-directed CMEs were observed in available
Solar activity is expected to continue at very low levels, with a slight
chance for C-class activity, all three days (17-19 Jan).
[Report of Solar-Geophysical Activity]
A - Alpha (single polarity spot).
B - Beta (bipolar spot configuration).
G - Gamma (atypical mixture of polarities).
BG - Beta-Gamma (mixture of polarities in a dominantly bipolar configuration).
D - Delta (opposite polarity umbrae within single penumbra).
BD - Beta with a Delta configuration.
BGD - Beta-Gamma with a Delta configuration.