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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, November 24, 2024 15:09:55

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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 Warning Valid on 19 Feb

OVATION Prime Model Forecast
G1 (Minor) Geomagnetic Storm Warning Valid on 19 Feb
published: Tuesday, February 20, 2018 08:17 UTC

A G1 (Minor) geomagnetic storm warning is valid for 19 Feb from 0244-0900 UTC (19/0944-1600 EST).  A G1 Alert for observed conditions was issued for 19/0259 UTC. Enhancements in visible aurora are likely at high latitudes in the night sector.