Boulder Canyon (Dome) Wildfire, New Zealand Earthquake, Boulder Colorado Four Mile Canyon Wildfire, San Bruno Gas Explosion, Loveland Colorado Wildfire, Hurricane Igor, Hurricane Julia, Hurricane Karl, New Zealand 2011 earthquake, Virginia Earthquake, Hurricane Katia, Hurricane Sandy
Space Weather. We are now in a solar cycle with increased sunspot activity. Resulting solar flares can lead to Coronal Mass Ejections (CMEs) from the sun which when they reach the earth a few days later can disturb the Earth's magnetic field. The plot shows estimates of the Kp index, which is a measure of this disturbance. A Kp of 5 or greater indicates a geomagnetic storm. If the disturbance is strong enough (probably 8 or 9 on the scale) then major power and communications disruptions can occur. For more see this quick guide.
resources section of this website for more tools for tracking wildfires.