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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, December 15, 2017 02:40:26

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NOAA Scales mini

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Space Weather Conditions
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
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 Issued for 31 Jan - 01 Feb

G1 (Minor) Geomagnetic Storm Watch Issued for 31 Jan - 01 Feb
published: Thursday, February 02, 2017 01:06 UTC

A G1 (Minor) Geomagnetic Storm Watch is valid beginning on 31 January through 01 February 2017 (UTC days) due the anticipated arrival of a co-rotating interaction region in advance of a recurrent, negative polarity coronal hole high-speed stream.