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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, December 12, 2017 00:40:59

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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

G2 (Moderate) Geomagnetic Storm Conditions Observed

G2 (Moderate) Geomagnetic Storm Conditions Observed
published: Sunday, September 04, 2016 12:36 UTC

A G2 (Moderate) Geomagnetic Storm Alert was issued at 03/0559 UTC (03 Sep 2016 at 1:59 am ET). The G2 Geomagnetic Storm Warning is valid until 03/0900 UTC (03 Sep at 5:00 am ET)  due to continued effects from a coronal hole high speed stream. Stay tuned here for updates.