• Old Sunspot 1731 erupted with M1.7 solar flare – May 20, 2013

    A moderate solar flare peaking at M1.7 was observed off the east limb around >Returning Sunspot 1731 located off the east limb produced moderate M1.7 solar flare at 05:25 UTC on May 20, 2013. Sunspot 1731 will begin to rotate back into view within the next 24

  • G1 (Minor) Geomagnetic Storm in progress – May 18, 2013

    G1 (Minor) Geomagnetic Storm conditions are now occurring due to the arrival of the CME from May 15, 2013. During G1 Geomagnetic Storm, weak power grid fluctuations can occur, minor impact on satellite operations is possible, aurora is commonly