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National Oceanic and Atmospheric Administration

Wednesday, January 01, 2025 18:35:45

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NOAA Scales

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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

Space Weather Summary

  • Solar Wind Speed: km/sec
  • Solar Wind Magnetic Fields: Bt nT, Bz nT
  • Noon 10.7cm Radio Flux: sfu

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G4 (Severe) Geomagnetic Storm Alert Threshold Reached at 1241 ET
G3 on 1 January 2025
CME Arrival on 31 December
G3 Storm for New Year's Eve Day
G4 (Severe) Geomagnetic Storm Alert Threshold Reached at 1241 ET
Wednesday, January 01, 2025 18:32 UTC

The G4 (Severe) Geomagnetic Storm Alert threshold was reached on January 1st, 2025 at 1241 ET due to continued effects from the CME's that left the

G3 Storm Reached on New Year's Day of 2025!
Wednesday, January 01, 2025 16:31 UTC

The second CME arrived overnight and welcomed New Year’s Day in with a geomagnetic storm!

CME Arrival as Expected on 31 December, 2024
Tuesday, December 31, 2024 17:05 UTC

The anticipated CME that launched from the Sun on 29 Dec has arrived!

A New Year's Eve Day Geomagnetic Storm is Anticipated - G3 Watch
Monday, December 30, 2024 17:32 UTC

A G3 (Strong) geomagnetic storm watch is in effect for 31 Dec, with a G1 (Minor) watch for 1 Jan.

Serving Essential Space Weather Communities

The Sun (EUV)

Solar Ultraviolet Image

Coronal Mass Ejections

LASCO C3 Coronagraph Image

The Aurora

Aurora ovation plot

GOES X-Ray Flux

GOES Proton Flux
Updated Time:
NOAA Scales Geomagnetic Storms
Kp < 5 Kp = 5 (G1) Kp = 6 (G2) Kp = 7 (G3) Kp = 8, 9- (G4) Kp = 9o (G5)