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Saturday, December 16, 2017 07:09:51

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NOAA Scales mini

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Space Weather Conditions
24-Hour Observed Maximums
R
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S
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G
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Latest Observed
R
no data
S
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G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
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R
no data
S
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G
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Current Space Weather Conditions
R1 (Minor) Radio Blackout Impacts
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HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
More about the NOAA Space Weather Scales

12192 Departing - Solar Activity in Decline

12192 Departing - Solar Activity in Decline
published: Monday, November 03, 2014 15:02 UTC
Active Region 12192, the largest region since November 18, 1990, is essentially now out of view.  The full tally of solar flare activity to date, compared to that region in 1990, is updated in the table below.  Remarkably, Region 12192 did not produce any radiation storms or significant Earth-directed coronal mass ejections (CMEs) during its transit across the visible disk.  With this region now on the limb or slightly behind, the threat of Earth-directed CMEs is essentially gone.  However, continued flaring is still possible as the loops high above this region will be visible for several days.  In addition, a radiation storm is still possible should another significant eruption occur.  Beyond that, only small spots pepper the disk at this time, in stark contrast to just a week ago. 

 

Comparing two large active regions

  Region 6368 (1990) Region 12192 (2014)*
R3-R5 (X-class) flares 0 6
R1-R2 (M-class) flares 14 35

*Through mid-day October 30.