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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, April 19, 2024 21:47:33

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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

G1 (minor) Geomagnetic Storm Watch for 18 March

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G1 (minor) Geomagnetic Storm Watch for 18 March
published: Tuesday, March 17, 2015 14:52 UTC

A G1 (minor) geomagnetic storm Watch has been issued for 18 March in response to two recently observed CMEs. The combined arrivals are expected to transit the magnetosphere protecting Earth and make first impact on late 17 March. The G1 magnetic response is expected to occur during the first few hours on the 18th. Standby for more details