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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 16, 2024 21:27:37

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NOAA Scales

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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
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R
no data
S
no data
G
no data
Current Space Weather Conditions
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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Network Outage Notice for March 6th
What to Expect in Solar Cycle 25
Solar Cycle Progression Plots Available
Monday, April 15, 2024 02:24 UTC

The workshop will be held in person along with a virtual component, April 15-19, 2024 in Boulder, CO

Tuesday, April 02, 2024 18:48 UTC

On Tuesday, April 23, 2024, between 1500 UTC and 2100 UTC,  the Space Weather Prediction Center plans to perform a major network upgrade that will

Friday, January 19, 2024 16:49 UTC

Solar Cycle 25 progression continues and the peak of solar maximum is approaching.

Monday, December 04, 2023 15:15 UTC

SWPC has made our new experimental solar cycle 25 progression plot available for feedback.

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)