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National Oceanic and Atmospheric Administration

Wednesday, April 17, 2024 09:05:26

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
no data
S
no data
G
no data
Latest Observed
R
no data
S
no data
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
no data
G
no data
Current Space Weather Conditions
on NOAA Scales
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

Anticipated CME Passes Quietly By The Earth

CME passage depicted in shaded area
Anticipated CME Passes Quietly By The Earth
published: Tuesday, June 30, 2015 15:44 UTC

A CME associated with the R2 (Moderate) Radio Blackout on 25 June glanced past the Earth early on 27 June, but did not cause geomagnetic storms as forecasters had predicted.  The sunspot region that produced the event, NOAA AR 12371, is beginning to transit the west limb and forecasters are expecting low solar activity for the upcoming week.