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T O P I C R E V I E W
vk3pa
Posted - 04 Jul 2006 : 06:15:08 AM # FAST WARNING 'PRESTO' MESSAGE from the SIDC (RWC-Belgiu # #--------------------------------------------------------------------# A transequatorial coronal hole has crossed the central meridian. During its last passage (June 6-8, ie one solar rotation=27d ago) the NOAA estimated Kp index went up to Kp=4 with isolated episodes of Kp=5. We expect thus active geomagnetic conditions, starting late tonight in the UT day and lasting till Thursday.Meanwhile, occassional C-class flaring remains possible from NOAA AR 898.