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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 24, 2018 21:18:21

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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 likely/chance for G2(Moderate)

GONG H-alpha image
G1(Minor) storm likely/chance for G2(Moderate)
published: Thursday, November 19, 2015 13:54 UTC

Late on 15 November and early on 16 November, two filament eruptions occurred in the SW quadrant of the solar disk. Preliminary analysis of the filament eruptions suggest possible influence of a coronal mass ejection (CME) accompanying the onset of a coronal hole high speed stream, making (G1-Minor) storming likely the latter half of 18 Nov and early on 19 Nov. Depending on the magnetic complexity of the CME, there is a chance conditions could reach G2-Moderate storm levels. As of now, G1-Minor storm Watches haveĀ been issued for 18 and 19 Nov.

Stay tuned here for updates.