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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, March 22, 2023 01:23:39

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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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G2 Watch for 24 Mar, 2023
2023 Space Weather Workshop - April 17-21, 2023 Banner
G2 (Moderate) Geomagnetic Storm Watch for 24 March, 2023
Wednesday, March 22, 2023 00:02 UTC

A G2 (Moderate) geomagnetic storm watch is in effect for 24 March, 2023.

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!

GOES-18 Now Secondary Data Source Replacing GOES-17
Wednesday, January 04, 2023 23:26 UTC

On January 4, 2023, NOAA's National Environmental Satellite Data Service (NESDIS) transitioned the GOES-18 satellite into operations as

Planetary K Index (Kp) Products will be updated on or about November 14, 2022
Monday, November 07, 2022 21:24 UTC

On or about November 14, 2022, at 1700 Universal Coordinated Time (UTC), the National Weather Service will deploy an update to the Planetary K inde

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)