A long duration C-Class solar flare reaching C8.3 erupted on August 30, 2013 peaking at 02:46 UTC. The event started at 02:04 UTC and ended at 04:06 UTC. Associated was Type II and Type IV radio emissions. 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. The source of event was AR1836 classified with Alpha magnetic configuration and located in the northeast quadrant of the Sun.
A Full-Halo Coronal Mass Ejection is visible on STEREO Ahead COR2 image below X-Ray graph. Earth directed component from this flare is highly likely.
Full-Halo CME observed on STEREO Ahead COR2
NOAA SWPC forecasters estimate 1% chance for M and X-class solar flares today.
ALERT: Type II Radio Emission
Begin Time: 2013 Aug 30 0212 UTC
Estimated Velocity: 1318 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: 2013 Aug 30 0224 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.
A large prominence located in the southern hemisphere erupted yesterday morning and generated a CME directed mostly south of the ecliptic plane.
There are currently three numbered sunspot regions on the disk. Source of today's C3.8 solar flare is Alpha region 1836. Regions 1834 and 1835 have Beta magnetic configuration and are located at the center of the disk.
1834 – Beta
1835 – Beta
1836 – Alpha
The geomagnetic field is expected to be at quiet to minor storm levels on August 30 and 31, and quiet to active levels on September 1.
Featured image courtesy of NASA/SDO and the AIA, EVE, and HMI science teams
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