DoomsdaysCW<p><a href="https://kolektiva.social/tags/Spaceweather" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Spaceweather</span></a> news:</p><p>"EXTREMELY RARE' FARSIDE CME: Something big just happened on the farside of the sun. During the early hours of March 13th, SOHO coronagraphs recorded a farside halo CME leaving the sun faster than 3000 km/s.</p><p>"MINOR GEOMAGNETIC STORM WATCH: Minor G1-class geomagnetic storms are possible on March 15th and 16th in response to a number of incoming CMEs. NOAA forecasters believe that 2 or 3 glancing blows are possible, individually weak but collectively effective. </p><p>"FARSIDE SUNSPOTS: The source of yesterday's farside CME (described below) is a mystery, but there are two leading suspects. Helioseismic maps reveal a pair of large active regions on the far side of the sun.</p><p>"Both will rotate around to the Earthside of the sun within a week, potentially bringing potent sunspots into our planet's 'strike zone.' In the meantime we will keep an eye out for CMEs flying over the edge of the sun, indicating additional farside activity. </p><p>"Because of its extreme speed, this CME is classified as 'extremely rare,' a fast-mover that occurs only once every decade or so. A NASA model of the event shows the CME heading almost directly away from Earth. Good thing!</p><p>"Although the CME was not Earth-directed, it has nevertheless touched our planet.</p><p>"NOAA's GOES-16 satellite has detected the particles reaching Earth--all from the CME's backside. Imagine what a frontside blast would have been like. Earth's magnetic field is funneling the particles toward the poles where a type of radio blackout is underway--a polar cap absorption (PCA) event.</p><p>"Airplanes flying over these regions may find that their shortwave radios won't work due to the ionizing effect of infalling protons. This PCA could persist for a day or more."<br><a href="https://kolektiva.social/tags/SolarFlares" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SolarFlares</span></a> <a href="https://kolektiva.social/tags/Solar" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Solar</span></a> <a href="https://kolektiva.social/tags/SolarCycle25" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SolarCycle25</span></a> <a href="https://kolektiva.social/tags/CarringtonEffect" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CarringtonEffect</span></a> <a href="https://kolektiva.social/tags/spaceweather" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>spaceweather</span></a> <a href="https://kolektiva.social/tags/spacewx" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>spacewx</span></a> <a href="https://kolektiva.social/tags/solarstorm" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>solarstorm</span></a> </p><p><a href="https://spaceweather.com/" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="">spaceweather.com/</span><span class="invisible"></span></a></p>