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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, January 23, 2021 05:49:15

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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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Notice of Potential Service Disruption at SWPC
Geoelectric Field Model Response to SI 10 Dec, 2020
What is a CME?
NWS Winter Safety Campaign
Wednesday, January 06, 2021 19:23 UTC

On 21 January 2021 from 1300 UTC to 0500 UTC on 22 January 2021 a major power work project will be performed at the facility that houses the SWPC f

Tuesday, December 15, 2020 17:07 UTC

Effects from the CME that departed the Sun on 7 December, 2020, arrived at Earth early on the 10 December, 2020, UTC-day.

Tuesday, December 08, 2020 21:24 UTC

Coronal Mass Ejections (CMEs) are large expulsions of plasma and magnetic field from the Sun’s corona.

Tuesday, December 01, 2020 22:56 UTC

Winter is approaching!

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

Estimated Planetary K-Index

Planetary K Index plot