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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 26, 2018 17:29:13

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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
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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
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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 Warning extended through 02/2100 UTC

G1 Warning and delta B projection 2 Mar 2017
G1 (Minor) Storm Warning extended through 02/2100 UTC
published: Friday, March 03, 2017 06:59 UTC

The G1 (Minor) geomagnetic storm warning was extended and is now valid through 02/2100 UTC (02/1600 ET). Elevated solar wind speeds around 700 km/s due to connection with a coronal hole high speed stream (CH HSS), and occasional periods of favorable interplanetary magnetic field (IMF) orientation, continue to cause periods of escalated, overall planetary geomagnetic response. G1 levels were first met on 1 March at 1036 UTC (01/0536 ET) and have been reached frequently since. G1 levels were most recently met on 2 March at 1412 UTC (02/0912 ET). A period of G2 (Moderate) storming was also reached on 1 March at 2300 UTC (01/1800 ET) during a particularly favorable period of solar wind conditions. Elevated solar winds speeds from the CH HSS are expected to continue through 2 March; therefore the G1 Watch also remains in effect for 02 March.