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Product Description: Time-series plot of the predicted sunspot number and solar radio flux levels over the current solar cycle. Target Users: This product is used for long-range planning of activities impacted by space weather in commercial/government areas such as the satellite industry, the electric power industry, and radio communication. |
NOAA Scales mini
R1 (Minor) Radio Blackout Impacts
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
Navigation: Low-frequency navigation signals degraded for brief intervals.