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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, June 24, 2025 03:23:48

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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 conditions still possible

G1 conditions still possible
published: Thursday, November 05, 2015 04:55 UTC

G1-Minor geomagnetic storm conditions continue in response to elevated solar wind speeds associated with a coronal hole high speed stream.  The anticipated effects from the coronal hole began around 03/0810 UTC (3 Nov 0310 EDT) and are expected to continue periodically through the first part of 5 November.  Solar wind velocities are in excess of 600 km/s and the interplanetary magnetic field (IMF) is enhanced enough that any sustained deviation of the IMF into a southward direction could escalate conditions up to G1-Minor storm levels. Stay tuned here for updates.