Sun Continues Active After Solar Max
07-Nov-2004
LASCO C-2 Image
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A large and moderately complex sunspot group, NOAA Region
696, was
responsible for a series of eruptions on the surface of the
Sun known
as solar flares, including a significant eruption on 7
November 2004 at
9:06 a.m. MST. A radiation storm, currently at the moderate
(S2)
level, began soon after the eruption was observed on the
Sun. Solar
flare activity over the past few days has resulted in a
series of
Earth-directed coronal mass ejections (CMEs) that have
impacted Earth's
geomagnetic field with severe (G4) geomagnetic storming.
Today's large
eruption on the Sun may produce further periods of strong
geomagnetic
storming on 9-10 November.
Agencies impacted by geomagnetic storms and radiation storms may
experience disruptions in the next 48 hours. These include
spacecraft
operations, electric power systems, HF communications, and
electronic
navigation systems.
Data used to provide space weather services are contributed
by NOAA,
USAF, NASA, NSF, USGS, the International Space Environment
Services
and other observatories, universities, and institutions. For
more
information, including email services, see SEC's Space Weather
Advisories Web site NOAA
Advisories.
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