EVENT LOG: M5.9 SOLAR FLARE     SOURCE: Sunspot 2151
DISCUSSION:

A moderately strong M5.9 solar flare was surprisingly observed around region 2151 located in the southeast quadrant at 12:17 UTC on August 24. The event was eruptive and a bright CME became visible soon after in coronagraph imagery. Because of the location near the east limb, the plasma cloud is likely directed to the east and away from Earth. A CME tracking model released by the Goddard Space Flight Center confirms this.

LOG ENTRIES:

08/24/2014 @ 19:00 UTC
A CME tracking model released by the Goddard Space Flight Center shows the plasma cloud missing well to the east. There should be little to no impact on our geomagnetic field.

08/24/2014 @ 14:00 UTC
A recap look at the M5.9 solar flare event around region 2151, along with a bright coronal mass ejection (CME) that appears to be headed to the east and away from Earth. I will provide updates once a CME tracking model becomes available.

08/24/2014 @ 13:45 UTC
Video of the event is now available.

08/24/2014 @ 13:15 UTC
CME now becoming visible in the latest LASCO coronagraph imagery. Located on right side of page.

08/24/2014 @ 13:00 UTC
The event was associated with a 10cm radio burst (TenFlare) measuring 409 solar flux units (SFU) and a Type II Radio Emission with an estimated velocity of 593 km/s.

ALERT: Type II Radio Emission
Begin Time: 2014 Aug 24 1214 UTC
Estimated Velocity: 593 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.

SUMMARY: 10cm Radio Burst
Begin Time: 2014 Aug 24 1209 UTC
Maximum Time: 2014 Aug 24 1210 UTC
End Time: 2014 Aug 24 1216 UTC
Duration: 7 minutes
Peak Flux: 409 sfu
Latest Penticton Noon Flux: 132 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.

08/24/2014 @ 12:44 UTC
A large release of plasma was observed in SDO/AIA 304 imagery. A coronal mass ejection (CME) is very likely. Because of the location of this event near the east limb, it will likely be directed mostly away from Earth. More updates regarding a possible Earth directed component to follow once updated coronagraph imagery is available.

08/24/2014 @ 12:30 UTC
A moderately strong M5.9 solar flare was surprisingly just observed around region 2151 located in the southeast quadrant. Based on imagery, it also appears to be eruptive. More updates to follow regarding a possible coronal mass ejection (CME).

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2014 Aug 24 1216 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 http://www.swpc.noaa.gov/drap/index.html.

AIA VIDEO:

FLARE IMAGERY:

CME IMAGERY:

GOES-15 X-Ray FLUX: