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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, December 20, 2024 21:53:57

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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

Aurora Dashboard (Experimental)

Aurora Dashboard Information

Image of the Aurora

When and where can you see the northern and southern lights also known as the aurora? This page provides a prediction of the aurora’s visibility tonight and tomorrow night in the charts below. The animations further down show what the aurora’s been up to over the last 24 hours and estimates what the next 30 minutes will be like. The aurora’s colorful green, red, and purple light shifts gently and often changes shape like softly blowing curtains.

Will I see the Aurora tonight or tomorrow night?

Tonight's Aurora Viewline Forecast The latest Ovation aurora prediction plot and animation Tomorrow Night's Aurora Viewline Forecast The latest Ovation aurora prediction plot and animation

Where will the Aurora be in the next few minutes?

Aurora Forecast - Northern Hemisphere
The latest Ovation aurora prediction plot and animation
Aurora Forecast - Southern Hemisphere
The latest Ovation aurora prediction plot and animation

What is Driving the Aurora?

Planetary K Index
Updated Time:
NOAA Scales Geomagnetic Storms
Kp < 5 Kp = 5 (G1) Kp = 6 (G2) Kp = 7 (G3) Kp = 8, 9- (G4) Kp = 9o (G5)
3-Day Forecast

How do Changes in Kp affect the Aurora?

Kp = 3 Quiet Aurora

Kp = 5 Moderate Aurora

Kp = 7 Active Aurora

Kp = 9 Very Active Aurora

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