MM#003 Major Flare Watch

Max Millennium Chief Observer mmchiefobserver at gmail.com
Sat May 4 06:19:26 MDT 2013


Dear RHESSI Collaborators,

Solar activity is at a moderate-to-high level. NOAA region 11731 has
decayed somewhat in spot area, but retains a beta-gamma-delta/E-type
sunspot group classification. This region was the source of one low
C-class event in the past 24 hours, and an M1.3 flare on 3-May-2013
at 16:39 UT. A new region has rotated over the North East limb since
yesterday's message, and is designated as NOAA 11739. This region
produced an M5.7 flare on 3-May-2013 at 17:24 UT and two subsequent
low C-class events. Prior to rotating over the North East limb, this
region was also the source of a flare and CME eruption on 1-May-2013
at ~02:15 UT. NOAA 11739 remains too close to the limb to accurately
determine its magnetic configuration, but is classified as having at
least a beta/D-type sunspot group classification. At this time we are
implementing a Major Flare Watch due to the increased possibility of
an M5 or greater flare over the next 24-48 hours.

The position of NOAA 11739 on 4-May-2013 at 12:30 UT is:

N13E68, ( -861", 237" )

See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.

Regards,

Shaun Bloomfield (Trinity College Dublin)
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