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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, April 27, 2024 14:38:02

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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

G3 (Strong) Geomagnetic Storm Conditions Observed on 19 Sep 2023

G3 (Strong) Geomagnetic Storm Conditions Observed on 19 Sep 2023
published: Wednesday, September 20, 2023 06:42 UTC

G3 (Strong) geomagnetic storming was briefly observed on 19 Sep at 0559 UTC with persistent CME influences. Conditions have since improved and generally active to G1 (Minor) storm levels are forecast through the remainder of the day (19 Sep). Impacts, including aurora sightings, can be reported at swpc.customersupport@noaa.gov.