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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, April 19, 2023 01:19:37

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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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Illustration of WSA-Enlil Plots old versus new.
R2O2R Funnel illustration
New Experimental US-Canada 1D geoelectric field map
2023 Space Weather Workshop - April 17-21, 2023 Banner
Announcing WSA-Enlil model v3.0!
Thursday, April 06, 2023 23:33 UTC

The Space Weather Prediction Center’s newly implemented WSA-Enlil model v3.0 consists of WSA-5.4 and Enlil-2.9e.

NASA/NOAA O2R2O Information Session -- April 12, 2023
Thursday, April 06, 2023 14:24 UTC

NASA and NOAA will host an upcoming information session,

New Experimental US-Canada 1D geoelectric field map
Tuesday, April 04, 2023 18:19 UTC

Beginning April 4, 2023, the Space Weather Prediction Center will generate an

2023 Space Weather Workshop - April 17-21, 2023
Thursday, February 09, 2023 16:42 UTC

Registration for the 2023 Space Weather Workshop is now open!

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)