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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, December 12, 2017 00:36:26

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NOAA Scales mini

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Space Weather Conditions
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
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

Update: G1 (Minor) Geomagnetic Storms Continue

Update: G1 (Minor) Geomagnetic Storms Continue
published: Sunday, August 20, 2017 21:09 UTC

Update:  G1 (Minor) geomagnetic storm levels have been observed for the fourth straight day due to effects from a recurrent, polar connected coronal hole high speed stream. The G1 Geomagnetic Storm Warning has been extended through August 19th at 11:00 am ET (20/1500 UTC). Stay tuned for updates!