Farside Eruption / Solar Watch
06/17/2013 by Kevin VE3EN @ 09:50 UTC

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Updated 06/16/2013 @ 17:25 UTC
Farside Eruption
A new active region (circled) currently transiting the farside of the Sun erupted earlier on Sunday and a bright Coronal Mass Ejection (CME) was flung into space. Because this was a farsided event, the plasma cloud was directed away from Earth. The solar rotation will carry the potential sunspot into Earth view later this week. Images by STEREO.

Added 06/17/2013 @ 09:50 UTC
Sunspot Watch
Sunspot 1775 located in the southeast quadrant continues to expand in both structure and magnetic complexity. NOAA now estimates about a 20% chance for an isolated M-Class event, and a slight 5% chance for a major X-Class flare event. Stay Tuned to SolarHam.com for the latest and most up to date information.

Prominences (Monday) - SDO/HMI

Updated 06/17/2013 @ 09:50 UTC
Solar Update
Good morning. Solar activity has been fairly low with minor C-Class activity detected around Sunspots 1772 and 1775. Both of these regions, particularly 1775 continue to show signs of sunspot development. Sunspot 1768 which has quietly transited the southern hemisphere the past 5 days is about to rotate onto the west limb. All other regions remain stable. There will be an increasing chance for an isolated M-Class event today.

Visible Solar Disk (Monday) - Click to Open

Prominences (Monday) - SDO/HMI

Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.
UPDATED 2013 Jun 17 2200 UTC


Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 168 Issued at 2200Z on 17 Jun 2013


IA.  Analysis of Solar Active Regions and Activity from 16/2100Z to
17/2100Z: Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
17/0812Z from Region 1772 (S20E15). There are currently 7 numbered
sunspot regions on the disk.

IB.  Solar Activity Forecast: Solar activity is likely to be low with a
slight chance for an M-class flare on days one, two, and three (18 Jun,
19 Jun, 20 Jun).


IIA.  Geophysical Activity Summary 16/2100Z to 17/2100Z: The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 360 km/s at
17/0427Z. Total IMF reached 6 nT at 16/2110Z. The maximum southward
component of Bz reached -4 nT at 16/2308Z. Electrons greater than 2 MeV
at geosynchronous orbit reached a peak level of 505 pfu.

IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on days one, two, and three (18 Jun, 19 Jun, 20
Jun).


III.  Event probabilities 18 Jun-20 Jun
Class M    20/20/20
Class X    05/05/05
Proton     01/01/01
PCAF       green





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