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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, April 19, 2024 20:53:01

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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

G2 (Moderate) Geomagnetic Storming Warning until 16/2359

G2 (Moderate) geomagnetic storming warning until 16/2359 UTC
G2 (Moderate) Geomagnetic Storming Warning until 16/2359
published: Wednesday, February 17, 2016 08:09 UTC

A G2 (Moderate) geomagnetic storm warning was issued and is valid from 16/2030-2359 UTC (16/1530-1859 ET). G2 conditions were first met at 16/2059 UTC (16/1559 ET). Additionally, the G1 (Minor) warning has been extended until 17/0700 UTC (17/0200 ET). The geomagnetic storming is in response to effects from a coronal hole high speed stream (CH HSS).