NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, December 10, 2024 13:18:15

Main menu

NOAA Scales mini

minimize icon
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
maximize icon
R
no data
S
no data
G
no data
Current Space Weather Conditions
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

G3 (Strong) Geomagnetic Storm Watch Now in Effect for 11 May

G3 (Strong) Geomagnetic Storm Watch Now in Effect for 11 May
published: Saturday, May 13, 2023 12:35 UTC

The Earth is currently being influenced by a CME that erupted from the Sun on 7 May. As of this posting, G1 (Minor) storm levels have so far been observed today and G2 (Moderate) levels remain likely through the remainder of the day.

Another CME erupted from the Sun on 9 May. This partial halo CME was associated with an M4 flare from sunspot Region 3296 and was first observed in SOHO coronagraph imagery on 9 May around 1900 UTC moving between 1400-1600 km/s. Forecasters predict a component of this CME will arrive at Earth by midday on 11 May as a G3 (Strong) geomagnetic storm while the bulk of the eruptive material passes ahead and north of Earth's orbit. G2 (Moderate) storming is likely into 12 May with ongoing CME influences.

Continue to monitor spaceweather.gov for additional updates.