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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, November 22, 2017 16:50:47

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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 Watch Issued For 25 Oct

G2- Moderate geomagnetic storm watch issued for 25 Oct 2017.
G2 (Moderate) Geomagnetic Storm Watch Issued For 25 Oct
published: Thursday, October 26, 2017 12:06 UTC

A G1 (Minor) geomagnetic storm watch has been issued for 24 Oct 2017, a G2 (Moderate) geomagnetic storm watch has been issued for 25 Oct 2017, and a G1 (Minor) geomagnetic storm watch has been issued for 24 Oct 2017 due to the anticipated arrival of a recurrent, positive polarity CH HSS.