NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, February 05, 2025 04:02:43

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

Pair of R3 (Strong) HF Radio Blackout Events on 30 Dec, 2024

R3 Strong radio blackout/GOES SUVI imagery
Pair of R3 (Strong) HF Radio Blackout Events on 30 Dec, 2024
published: Thursday, January 02, 2025 14:34 UTC

Two simultaneous, yet separate R3 (Strong) radio blackout events occurred at 30/0414 and 0429 UTC, respectively. The first event, an X1.5 flare, peaked at 30/0414 UTC and originated from  Region 3936 in the NW quadrant of the Sun. The second event, an X1.1 flare, began before the first flare had completely ended, and peaked at 30/0429 UTC. This event originated from Region 3932 in the SW quadrant of the Sun. The associated coronal mass ejection was analyzed and determined to not have an Earth-directed component. Stay tuned to our website for updates.