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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, March 20, 2026 15:04:21

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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(s) Arrived and G2 Watch Continues through 21 March

CME(s) Arrived and G2 Watch Continues through 21 March
CME(s) Arrived and G2 Watch Continues through 21 March
published: Friday, March 20, 2026 14:52 UTC

A G2 Watch continues for 20-21 March due to a mix of CME arrivals and CH HSS effects. To learn more about what transpired, what may be yet to come, and what to look for as we go into the weekend, check out this SWPC video update about this activity. And, as always stay informed by continuing to visit our webpage for the latest information and updates.

DAP - temp Head Section