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<blockquote type=cite class=cite cite=""><font size=3><br>
</font><font size=4 color="#FF0000"><b>SEVERE GEOMAGNETIC STORM IN
PROGRESS: </b></font><font size=4>A severe
<a href="http://legacy-www.swpc.noaa.gov/NOAAscales/index.html#GeomagneticStorms">
G4-class</a> geomagnetic storm is in progress on June 22nd. This follows
a series of rapid-fire CME strikes to Earth's magnetic field during the
past 24 hours. Magnetic fields in the wake of the latest CME are strongly
coupled to Earth's own magnetic field. This is a condition that could
sustain the geomagnetic storm for many hours to come. High- and
mid-latitude sky watchers should be alert for auroras tonight, especially
during the hours around local midnight.<br><br>
</font><font size=4 color="#FF0000"><b>EARTH-DIRECTED SOLAR FLARE, RADIO
BLACKOUT: </b></font><font size=4>Sunspot AR2371 has erupted again,
producing a strong M6.5 class solar flare. NASA's Solar Dynamics
Observatory captured the flare's extreme ultraviolet flash on June 22nd
at 18:23 UT:<br><br>
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<img src="http://spaceweather.com/images2015/22jun15/m6_strip.jpg" width=512 height=378 alt="[]">
<br><br>
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X-ray and UV radiation from the flare ionized the upper layers of Earth's
atmosphere, producing a moderately-strong blackout of shortwave and
low-frequency radio signals over North America. The North American
blackout is subsiding now. An even deeper radio blackout is still
underway around both of Earth's poles. This is due to solar protons and
electrons being funneled into the polar regions by Earth's magnetic
field. A
<a href="http://spaceweather.com/images2015/22jun15/blackout.gif?PHPSESSID=krr6c38u6j05qt9gqj6j00q103">
blackout map</a> from NOAA shows the geographical distribution of the
radio disturbances.</font></blockquote></body>
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