MM#003 Major Flare Watch

Dear RHESSI Collaborators,

At this time we are implementing Max Millennium Coordinated Observing Plan #003 (Region Likely To Produce Major Flares). Previous target, NOAA 1158, entered a very strong growth phase today. It now has the potential to produce a major flare. It has developed a magnetically complex large E-type sunspot group with a beta-gamma magnetic classification with a possible strong delta configuration forming within its intermediate portion. An M5 event or greater is possible if growth continues.

The position of NOAA 1158 on February 13 at 01:30 UT is: S21E15 (Solar X = -236", Solar Y = -244")

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)