X4.9 Solar Flare 02/24/2014 - possibility of a coronal mass ejection CME

The X4.9 Solar Flare was associated with a Type II radio emission with a velocity of nearly 2000 km/s. This indicates the possibility of a coronal mass ejection. A 10cm Radio Burst (TenFlare) measuring 3700 sfu and lasting 85 minutes was also recorded. Despite newly renumbered region 1990 being close to the limb, it is still possible to be flanked by a CME from this location if it happens to be large enough. More updates to follow if a CME is associated. Attached video by SDO.


ALERT: Type II Radio Emission
Begin Time: 2014 Feb 25 0045 UTC
Estimated Velocity: 1972 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: Type IV Radio Emission
Begin Time: 2014 Feb 25 0045 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


SUMMARY: 10cm Radio Burst
Begin Time: 2014 Feb 25 0042 UTC
Maximum Time: 2014 Feb 25 0045 UTC
End Time: 2014 Feb 25 0107 UTC
Duration: 85 minutes
Peak Flux: 3700 sfu
Latest Penticton Noon Flux: 171 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.