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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
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

G1 Watch for 29 Nov 2017

G1 Watch for 29 Nov
G1 Watch for 29 Nov 2017
published: Thursday, November 30, 2017 07:33 UTC

A G1 (Minor) Geomagnetic Storm Watch is valid for 29 November due to an anticipated combination of CME and CH HSS effects. A increase in likelihood for visible aurora should exist at night in the higher latitudes.