SolarHam.com - Older News Archive (June 2017)

June 16, 2017 @ 15:30 UTC
Geomagnetic Storm Watch (UPDATED)
A high speed solar wind stream flowing from a pair of relatively small coronal holes is expected to reach Earth within the next 24 hours. A minor (G1) geomagnetic storm watch is now in effect. Sky watchers at higher latitudes should be alert for visible aurora should local light and weather conditions allow.

UPDATE: Coronal Hole stream is now geoeffective. The minor (G1) geomagnetic storm threshold was reached at 14:58 UTC (June 16).

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2017 Jun 16 2320 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor

June 13, 2017 @ 00:50 UTC
Coronal Hole / Small New Sunspot
Good evening. An elevated solar wind stream above 500 km/s continues to move past our planet but is not expected to disturb our geomagnetic field, at least not past the minor storm (G1) threshold. More updates regarding this whenever necessary.

Coronal Hole (01) continues move into an Earth facing position and will become geoffective by June 16th. Enhanced geomagnetic activity will be possible once another stream arrives past Earth. More updates in the days ahead. Image courtesy of SDO/AIA.

One last piece of information. A small new sunspot is now turning into view off the east limb and will be numbered 2662. it does not appear to be a threat for noteworthy solar flares. Stay tuned to SolarHam.com for the latest spaceweather news, data and imagery.

June 11, 2017 @ 14:40 UTC
Bz South
Good morning. The Bz component of the interplanetary magnetic field (IMF) carried past Earth via the solar wind is currently in a south pointing position. Increased geomagnetic activity will be possible today at higher latitudes. More updates later today if necessary.

UPDATE: The minor (G1) geomagnetic storm threshold was reached at 17:59 UTC. A decline to quieter levels is expected during the next 24 hours.

June 1, 2017 @ 02:10 UTC
New Sunspot / Increased Activity
A new sunspot numbered 2661 is now turning into view off the east limb. The active region has been producing minor C-Flares, including a C6.6 at 01:43 UTC (June 1). We will get a better look at the sunspot over the next 24 hours when it turns more directly into view. An isolated moderate M-Flare may also be possible. Image below capturing the minor C6.6 solar flare is courtesy of SDO/AIA.