Space Weather News for June 4, 2011
http://spaceweather.com

ELECTRIC-BLUE CLOUDS: The 2011 noctilucent cloud (NLC) season has begun. For the past few nights, observers in northern parts of Europe have spotted velvety, electric-blue tendrils rippling across the sunset sky. NLCs are a summertime phenomenon first reported by polar observers in the 19th century. �In recent decades, for reasons no one fully understands, the clouds have intensified and spread �as far south as Utah and Colorado. �Visit today's edition of http://spaceweather.com for photos and observing tips.

CHANCE OF MAGNETIC ACTIVITY: �NOAA forecasters estimate a 45% chance of geomagnetic activity on June 4th when an incoming solar wind stream and a CME might deliver a double blow to Earth's magnetic field. High-latitude sky watchers in both hemispheres should be alert for auroras. �Aurora alerts: http://spaceweatherphone.com (voice) or http://spaceweathertext.com (text).


David Cottle

UBB Owner & Administrator