MM#003 Major Flare Watch

Dear RHESSI Collaborators,

NOAA 1719 was the source of an isolated M6.5 event at 04/11/07:16 UT. At this time we are implementing Max Millennium coordinated observing plan #003 (Region Likely To Produce A Major Flare). 1719 rapidly developed a magnetic delta configuration located in the southeastern portion of its reversed polarity D-type/beta-gamma sunspot group. We will switch to 1719 from NOAA 1718 today. 1718 is maintaining its D-type/beta-gamma sunspot group and is currently the brightest region on the visible disk. It is possible that 1719 will produce another major flare =/>M5 in the next few days. 1718 is also capable of producing an isolated M-class event.

The position of NOAA 1719 on April 11 at 13:00 UT is: N10E05 (Solar X = -082", Solar Y = 262")

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,

Bill Marquette (Helio Research)