Serial Number: 187 Issue Time: 2013 May 13 0206 UTC
ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2013 May 13 0204 UTC NOAA Scale: R2 - Moderate 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.
For real-time information on affected area and expected duration please see
