GalaxOSSpace weather, explained

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Aurora

Aurora Tonight
By Location
Kp Index

Forecasts

3-Day Forecast
Solar Cycle

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Magnetic Field
Energetics
Radio Blackout
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Space weather summary

137 placesWithin reachOf 243 we track. Pick yours for tonight's answer.

3.7UnsettledHow disturbed Earth's magnetic field is, 0 to 9. Storms start at 5.

Next three days

Kp 4.0ActiveNOAA's forecast peak, Saturday 00–03 UTC.

The sun right now

AIA 171

Mix 211,193,171

HMI Colorized Magnetogram

AIA 211

Solar wind speed

Last two hours, km/s.

Explore

Aurora by locationTonight's answer for 243 places.

3-day forecastWhat the sun is sending our way.

Solar windSpeed, density and the magnetic field.

Magnetic fieldHow Earth's shield is holding up.

Radio blackoutsSolar flares and shortwave radio.

Solar cycleWhere we are in the sun's 11 years.

Latest alerts

19:39Oct 16

Alert

Geomagnetic K-index of 4

Oct

16

19:39

Alert

Geomagnetic K-index of 4

Induced Currents

Aurora

Alert

Induced Currents

Aurora

19:38Oct 16

Warning

Geomagnetic K-index of 4 expected

Oct

16

19:38

Warning

Geomagnetic K-index of 4 expected

Induced Currents

Aurora

Warning

Induced Currents

Aurora

14:19Oct 16

Alert

Electron 2MeV Integral Flux exceeded 1,000pfu

Oct

16

14:19

Alert

Electron 2MeV Integral Flux exceeded 1,000pfu

Alert