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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, April 22, 2024 17:18:59

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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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Network Outage Notice for March 6th
What to Expect in Solar Cycle 25
WAM-IPE Upgrade
Network Outage Notice for April 23rd
Monday, April 22, 2024 17:15 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

New Path for Space Weather Collaboration Among Federal Agencies
Monday, April 22, 2024 17:13 UTC

Space weather scientists at NOAA and experts across the government celebrated a new collaborative effort to improve space weather forecasts and services to mitigate impacts of space weather.

What to Expect from the Peak of Solar Cycle 25
Friday, January 19, 2024 16:49 UTC

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

WAM-IPE Model Upgrade
Wednesday, August 02, 2023 13:45 UTC

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)