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National Oceanic and Atmospheric Administration

Friday, November 08, 2024 14:52:27

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
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S
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G
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Latest Observed
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S
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R1-R2 --
R3-R5 --
S1 or greater --
G
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R1-R2 --
R3-R5 --
S1 or greater --
G
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R1-R2 --
R3-R5 --
S1 or greater --
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R
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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

G4 Alert: Another storm reaches severe levels

G4 Alert: Another storm reaches severe levels
published: Wednesday, June 24, 2015 22:17 UTC

The geomagnetic storm began as forecasted and quickly ramped up to severe (G4)  levels.  SWPC issued the G4 Alert at 1858 UT (2:58 pm EDT), after the storm slammed into Earth at 1839 UT (2:39 pm EDT). This is the same intensity level reached in March, 2015 during the St. Patrick's Day storm.  This is the very early stages of an event that will play out over many hours, with SWPC forecasting continuing storm level intensities into tomorrow.  In Europe watchers should be looking for the aurora now and there is hope for those over the US tonight.  Stay tuned here, as there is more happening to tell you about.