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National Oceanic and Atmospheric Administration

Saturday, April 27, 2024 15:34:47

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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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G
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Latest Observed
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R1-R2 --
R3-R5 --
S1 or greater --
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R1-R2 --
R3-R5 --
S1 or greater --
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no data
R1-R2 --
R3-R5 --
S1 or greater --
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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

Geomagnetic Disturbances Likely 04 to 10 November 2023

Geomagnetic Disturbances Likely 04-10 Nov 2023
Geomagnetic Disturbances Likely 04 to 10 November 2023
published: Monday, November 13, 2023 06:41 UTC

Coronal Mass Ejections (CMEs) and a Coronal Hole High Speed Stream (CH HSS) are now in the forecast. Recent CMEs have departed the Sun and may reach Earth with at least glancing blows. Earliest influences may be as soon as late on Nov. 4. The most recent CME (shown in the image) is more likely to have an Earth-directed component and may reach Earth afterwards. Additionally, a CH HSS will likely affect Earth as soon as Nov. 8 with effects possibly lasting through Nov. 10. All of this activity makes for an interesting forecast challenge and expected conditions are still being evaluated, but geomagnetic disturbances are becoming more likely from Nov. 4-10. Continue to visit our webpage for the latest information and forecast updates.