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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, January 21, 2018 22:04:48

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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 Levels Observed

G2 (Moderate) Geomagnetic Storm Levels Observed
published: Sunday, April 23, 2017 15:24 UTC

Over the past two days, numerous G1 and G2 storm level conditions have been observed. This forecasted geomagnetic activity is a result of a recurrent, negative-polarity coronal hole high speed stream.  

G2 (Moderate) geomagnetic storm conditions were observed at 22/0559, 22/1425, 22/2359 and 23/0852 UTC.  A G2 (Moderate) Warning is valid through 23/1500 UTC. A G2 Watch was issued for 23 April. 

G1 (Minor) geomagnetic storm conditions were meet at 21/2032, 21/2359, 22/0235, 22/0421, 22/0852, 22/1022, 22/1346, 22/1641, 22/2240, 23/0754, and 23/1034 UTC. A G1 (Minor) Warning is valid until 23/2100 UTC. A G1 (Minor) Watch has been issued for 24 and 25 April as these influences are likely to continue for several more days.

Check here for continued updates as SWPC Forecasters continue to manage this geomagnetic activity.