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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 16, 2024 13:31:00

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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 issued

Ovation Aurora model/G1 Warning
G1-Minor geomagnetic Storm Warning issued
published: Thursday, April 20, 2017 18:49 UTC

A G1-Minor storm warning was issued at 20/0138 UTC, valid until 20/1500 UTC in response to elevated solar wind speeds associated with a coronal hole high speed stream. An alert will be issued should conditions warrant.

Stay tuned here for updates.