·

Third M-class solar flare in a row from Region 1613 – M2.0, M6.0, M2.5

third-m-class-solar-flare-in-a-row-from-region-1613-m2-0-m6-0-m2-5

Active Region 1613, located in southern hemisphere, produced three M-class solar flares in last 6 hours. At 23:28 UTC, November 12, 2012 it peaked with M2.0 solar flare, then on November 13, 2012 at 02:04 an impulsive M6.0 peaked followed by M2.5 at 05:50 UTC.

A Type II Radio Emission was associated with first two events. Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

NOAA/SWPC issued Moderate R2 Radio Blackout level following an M6.0 flare at 02:04 UTC – possible limited blackout of HF radio communication on sunlit side, loss of radio contact for tens of minutes, degradation of low-frequency navigation signals for tens of minutes.

Space Weather Message Code: ALTTP2
Serial Number: 827
Issue Time: 2012 Nov 13 0004 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 12 2328 UTC
Estimated Velocity: 645 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.

***

Space Weather Message Code: ALTXMF
Serial Number: 184
Issue Time: 2012 Nov 13 0206 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Nov 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 http://www.swpc.noaa.gov/drap/index.html.

 ***

Space Weather Message Code: ALTTP2
Serial Number: 828
Issue Time: 2012 Nov 13 0231 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 13 0204 UTC
Estimated Velocity: 1193 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.

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.

***

 

YouTube video
Featured image and movie: Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.

Share:

Commenting rules and guidelines

We value the thoughts and opinions of our readers and welcome healthy discussions on our website. In order to maintain a respectful and positive community, we ask that all commenters follow these rules:

  • Treat others with kindness and respect.
  • Stay on topic and contribute to the conversation in a meaningful way.
  • Do not use abusive or hateful language.
  • Do not spam or promote unrelated products or services.
  • Do not post any personal information or content that is illegal, obscene, or otherwise inappropriate.

We reserve the right to remove any comments that violate these rules. By commenting on our website, you agree to abide by these guidelines. Thank you for helping to create a positive and welcoming environment for all.

3 Comments

Leave a reply

Your email address will not be published. Required fields are marked *