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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 24, 2018 21:12:01

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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 Observed. G1 (Minor) Conditions Continue

Aurora Forecast Model Output
G2 (Moderate) Geomagnetic Storm Observed. G1 (Minor) Conditions Continue
published: Friday, December 23, 2016 01:01 UTC

A G2 (Moderate) Geomagnetic Storm Alert was observed on December 21, 2016 at 1613 UTC (11:13 am ET). Conditions are expected to remain elevated with G1 (Minor) storms through 22/1500 UTC due to continued coronal hole high speed stream effects. Stay tuned for updates!