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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
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Latest Observed
R
no data
S
no data
G
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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
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G
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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

G1 Watch Remains in Effect for 5 and 6 January

G1 Watch for 5 and 6 January
G1 Watch Remains in Effect for 5 and 6 January
published: Saturday, January 07, 2017 06:31 UTC

A G1 (Minor) geomagnetic storm watch remains in effect for 5 January, 2017 and has been extended to include 6 January. The anticipated recurrent, polar connected, negative polarity CH HSS is impacting Earth's magnetosphere with solar wind speeds in excess of 600 km/s. This coupled with periods of favorable interplanetary magnetic field orientation is likely to cause escalated geomagnetic responses to minor (G1) storm levels. Continue to check our SWPC website for updated information and forecasts.