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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, March 21, 2019 16:33:23

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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

Update: G1 (Minor) Geomagnetic Storm Alert Issued

Update: G1 (Minor) Geomagnetic Storm Alert Issued
published: Wednesday, June 20, 2018 00:50 UTC

Update:  A G1 (Minor) geomagnetic storm alert was issued at 18/0256 UTC  (10:56 pm Eastern). A G1 (Minor) storm warning is valid from 0220-0900 UTC on 18 June (10:20 pm- 5:00 am Eastern) due to coronal hole high speed stream activity.