The K-index, and by extension the Planetary K-index, are used to characterize the magnitude of geomagnetic storms. Kp is an excellent indicator of disturbances in the Earth's magnetic field and is ...

This is a prediction of the intensity and location of the aurora borealis tonight and tomorrow night over North America. This product is based on the OVATION model and uses the maximum forecast ...

This is a short-term forecast of the location and intensity of the aurora. This product is based on the OVATION model and provides a 30 to 90 minute forecast of the location and intensity of the ...

The Station A and K indices show the fluctuations in the magnetic field, tied to specific geographic locations. The indices have a range from 0 to 9 and are directly related to the maximum amount of ...

The NOAA Space Weather Scales were introduced as a way to communicate to the general public the current and future space weather conditions and their possible effects on people and systems. Many of ...

https://services.swpc.noaa.gov 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 -- ...

A geomagnetic storm is a major disturbance of Earth's magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth.

SWPC has issued a G3 (Strong) or greater geomagnetic storm warning valid until 10/2359 UTC. The solar wind environment became strongly enhanced following the arrival of a CME from 08 Oct at around ...

As part of the Space Weather Prediction Center's rollout of our improved website, the content from the old NOAA Space Weather Scales page is being provided in a new way.

Solar wind data refers to in situ magnetic field, solar wind plasma, and particle data from any spacecraft located upwind of Earth, typically orbiting the L1 Lagrange point, that is available to SWPC ...