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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, June 07, 2025 03:01:17

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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

CME analysis in progress

G1 S1 R2 Events with photos
CME analysis in progress
published: Tuesday, September 05, 2017 14:47 UTC

Forecasters are in the process of analyzing a coronal mass ejection that could reach Earth within the next two days. The CME was associated with an M5 X-ray flare (R2 radio blackout) that was observed on 4 Sep 2017 at approx 1633 EDT (04/2033 UTC). This event appears to have originated from an active sunspot region (AR2673) near the center of the solar disk. As imagery becomes available, forecasters will analyze the data to determine if and when the CME will reach Earth, and what impacts may result.

Stay tuned here for updates.