ARLA/CLUSTER: 45% de possibilidades de tempestada polar geomagnetica nas proximas horas

[João Costa > CT1FBF]

Incoming CME, Chance of Storms

* Space Weather* report big sunspot *AR1967* is crackling with solar flares
and hurling CMEs into space

The biggest CME so far was propelled away from the sun on Jan. 30th by an
M6-class explosion in the sunspot's magnetic canopy. It is expected to
reach Earth on Feb. 2nd.

The blast was not squarely Earth-directed. Instead, it will deliver a
glancing blow to our planet's magnetic field. NOAA forecasters estimate a
45% chance of polar geomagnetic storms when the cloud arrives on Sunday.
High-latitude sky watchers should be alert for auroras.

Space Weather
http://www.spaceweather.com/
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