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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 26, 2018 07:46:54

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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) Warning in effect through 23/0600 UTC

G1 Warning Auroral Oval Forecast
G1 (Minor) Warning in effect through 23/0600 UTC
published: Wednesday, November 23, 2016 06:05 UTC

G1 (Minor) geomagnetic storm warning now in effect through 23/0600 UTC (23/0100 ET) due to elevated solar wind speedsĀ from anticipated coronal hole high speed stream (CH HSS) influences. The solar wind environment hasĀ turned favorable for escalated levels of geomagnetic response to the G1 level. Keep checking our SWPC webpage for the most recent forecasts, alerts and warnings.