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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, January 20, 2018 04:40:55

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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

G2-Moderate Geomagnetic Storm Conditions Observed

G2-Moderate Geomagnetic Storm Conditions Observed
published: Sunday, September 04, 2016 12:35 UTC

A G2 - Moderate geomagnetic storm alert was issued at 01/2358 UTC (01 Sep 2016 at 7:58 pm ET). The G2 Geomagnetic Storm Warning is valid until 02/0300 UTC (01 Sep at 11:00 pm ET) while the G1 - Minor Geomagnetic Storm Warning has been extended until 02/0600 UTC (02 Sep at 2:00 am ET) due to effects from a coronal hole high speed stream. Stay tuned here for updates.