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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, January 20, 2018 04:58:08

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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 for 30 March, 2017

G1 Watch and SDO image of CH
G1 (Minor) Geomagnetic Storm Watch for 30 March, 2017
published: Friday, March 31, 2017 02:27 UTC

A G1 (Minor) geomagnetic storm watch is in effect for the 30 March, 2017 UTC-day. Elevated solar wind speeds are anticipated to continue due to a coronal hole high speed stream (CH HSS) currently connected with Earth. Any periods of prolonged favorable interplanetary magnetic field (IMF) orientation at these higher solar wind speeds is likely to elicit isolated periods of G1 storming. Continue to monitor the SWPC webpage for the latest information.