ALERT 2: Type II Radio Emission
Begin Time: 2012 Oct 20 1815 UTC
Estimated Velocity: 516 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
ALERT 1: X-Ray Flux exceeded M5
Threshold Reached: 2012 Oct 20 1814 UTC
NOAA Scale: R2 – Moderate
NOAA Space Weather Scale descriptions can be found at
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity.