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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, November 22, 2017 16:30:02

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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

Day Two of G2 (Moderate) Geomagnetic Storm Conditions

Day Two of G2 (Moderate) Geomagnetic Storm Conditions
published: Friday, September 30, 2016 05:45 UTC

A G2 (Moderate) Geomagnetic Storm Alert was issued at 2048 UTC (4:48 pm ET) on 28 September as effects from a large coronal hole high speed stream continue. Conditions are expected to reach G2 on 29 and 30 September before gradually decreasing in intensity to G1 (Minor) storm levels on 01 October. Stay tuned for updates!