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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 26, 2018 17:29:51

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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

G1 Minor geomagnetic activity

Ovation Aurora Forecast Model
G1 Minor geomagnetic activity
published: Saturday, July 11, 2015 22:07 UTC

A G1 Minor geomagnetic storm warning is currently in effect until 0900 EDT (1300 UTC) on 11 July. The enhanced geomagnetic activity is in response to the geoeffective coronal hole high speed stream that was forecast to arrive at Earth today. Stay tuned here for updates.