NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, April 21, 2025 20:30:33

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

CME Passage Continues Today, 16 Apr 2025

CME Passage Continues Today, 16 Apr 2025
CME Passage Continues Today, 16 Apr 2025
published: Friday, April 18, 2025 00:43 UTC

CME passage continues today, 16 Apr with G3 levels reached. Conditions are anticipated to show signs of weakening later today, but the potential for at least G1 levels remains on 17 Apr. Visit our webpage for the latest information and updates.