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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, October 01, 2025 06:16:58

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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

R2 Moderate solar flare occurred

R2 Moderate Event, Expectation, and Effects explanations. SUVI image
R2 Moderate solar flare occurred
published: Monday, September 29, 2025 22:18 UTC

An M6.4 X-ray flare (R2-Moderate radio blackout) occurred at 28/0843 UTC (0443 EDT) from active Region 4232 on the East side of the visible disk. Development of several new active regions in tis area has lead to an increase in solar flare activity. Stay tuned to our website for updates.