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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, May 17, 2024 13:51:23

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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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POSTPONED
Network Outages Rescheduled for 20 and 21 May 2024
Friday, May 17, 2024 13:50 UTC

The required Space Weather Prediction Center (SWPC) major network upgrade has been rescheduled for May 20 and 21, 2024.

New Path for Space Weather Collaboration Among Federal Agencies
Friday, May 17, 2024 13:50 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.

Space Weather Impacts
Monday, May 13, 2024 12:33 UTC

Space weather is a two-sided coin: it creates beautiful auroras, but it can also jeopardize the technologies we rely on daily.

Why Does the Aurora Change Colors?
Monday, May 13, 2024 12:30 UTC

Red, Green, Blue? Why does the Aurora change colors?

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)