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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 26, 2018 08:00:21

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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) Storm Watch continues for 30 and 31 August

Auroral Extent Views
G1 (Minor) Storm Watch continues for 30 and 31 August
published: Thursday, September 01, 2016 06:11 UTC

The G1 (Minor) geomagnetic storm watch continues for 30 August, and is now also in effect for the 31 August UTC-day. Higher solar wind speeds coupled with periods of favorable interplanetary magnetic field orientation is likely to result in isolated periods of minor storming conditions. The increased solar wind speeds are a result of a coronal hole high speed stream (CH HSS) that moved into a favorable Earth-effective position early on 30 August. The disturbed and enhanced solar wind environment has resulted in recent periods of overall active conditions, with minor storming at higher latitudes.

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