Space Weather News for Oct. 27, 2003
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Giant sunspots 484 and 486 remain visible on the sun, posing a continued threat for X-class solar explosions. Indeed, on Sunday, Oct. 26th, there were two such blasts--one from each sunspot. The explosions hurled coronal mass ejections (CMEs) into space and somewhat toward Earth.

Because of these events, sky watchers should be alert for auroras during the nights ahead. High-latitude sites such as Alaska, Canada and US northern border states from Maine to Washington are favored, as usual, but auroras could descend to lower latitudes as well. Forecasters estimate a 25% chance of severe geomagnetic storming when the incoming CMEs sweep past Earth and deliver (probably glancing) blows to our planet's magnetic field.

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