NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, November 22, 2024 21:37:00

Main menu

NOAA Scales mini

minimize icon
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
maximize icon
R
no data
S
no data
G
no data
Current Space Weather Conditions
on NOAA Scales
R1 (Minor) Radio Blackout Impacts
close
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

17-18 Aug Weekend Activity Summary: A Brief G3 (Strong) Storm on 17 Aug

17-18 Aug Weekend Activity Summary: A Brief G3 (Strong) Storm on 17 Aug
published: Wednesday, August 21, 2024 13:20 UTC

Saturday, 17 Aug, observed G3 (Strong) levels briefly in response to a coronal mass ejection (CME) arrival. Conditions quickly weakened as CME passage passed over and beyond Earth. This CME was likely from the 14 Aug eruption and appeared to arrive as a glancing blow. Flare activity continued over the weekend and remains likely through the week. Please continue to visit our SWPC webpage for the latest information, forecasts, and updates.