A Coronal Mass Ejection (CME) arrived at Earth on 10 October. The CME signature was observed in the solar wind beginning at 10/1434 UTC. A sudden impulse of 56 nT was then recorded at the Niemegk, ...

Similar to the bulletins put out by the NWS local forecast offices, SWPC provides Alerts, Watches and Warnings to the public at large about what to expect from Space Weather. These bulletins are ...

G1 (Minor) to G2 (Moderate) geomagnetic storms are likely on 09 Oct with the arrival of a CME that was associated with a M1.4 flare from Active Region 4549 on 06 Oct. A high chance for additional ...

SWPC has issued a G2 (Moderate) geomagnetic storm Watch for 11 Oct 2026. The Watch covers the expected arrival of two coronal mass ejections (CMEs) that left the Sun on 07 and 08 Oct. The 08 Oct CME ...

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 ...

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 ...

The modeling system consists of two sub models: 1) Wang-Sheeley-Arge (WSA), semi-empirical near-Sun model which approximates the outflow at the base of the solar wind; and 2) Enlil, a sophisticated ...