<h1>Possible CME impact today</h1>
<p><em>Space Weather</em> reports that a coronal mass ejection (CME) hurled into space by the X1-flare of May 15 might deliver a glancing blow to Earth's magnetic field on May 17<br><br>They say NOAA forecasters estimate a 40% chance of polar geomagnetic storms when the cloud arrives. High-latitude sky watchers should be alert for auroras.<br>
<br>Sunspot AR1748 has already unleashed four X-class solar flares, but it might not be finished. The active region continues to grow beneath a delta-class magnetic field that harbors energy for powerful eruptions. NOAA puts the odds of another X-flare today at 60%.<br>
<br>Space Weather <br><a href="http://spaceweather.com/" target="_blank">http://spaceweather.com/</a><br></p>