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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

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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

G2 (Moderate) Geomagnetic Storm levels observed

G2 (Moderate) Geomagnetic Storm levels observed
published: Sunday, April 03, 2016 05:44 UTC

G2 (Moderate) geomagnetic storm levels were observed at 2359 UTC (7:59 pm EDT) on 02 April due to the continued influence of a coronal hole high speed stream.  G1 (Minor) conditions are likely to continue into 03 April.  Stay tuned to spaceweather.gov for further updates.