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 ...

The NOAA/NASA co-chaired, international panel to forecast Solar Cycle 25 released their latest forecast for Solar Cycle 25. The forecast consensus: a peak in July, 2025 (+/- 8 months), with a smoothed ...

An energetic and fast moving CME has blasted from the Sun early on 11 November. SWPC forecasters are evaluating the situation and will make any needed geomagnetic storm watch adjustments soon. There ...

An S4 (Severe) solar radiation storm is in progress. NOAA’s GOES-19 satellite measurements show the ongoing solar radiation storm has intensified to Severe (S4) on the NOAA Space Weather Scales, and ...

G4 Levels were first reached at 2:38pm EST (1938 UTC) on 19 January, 2026 upon CME shock arrival. CME passage is expected to continue through the evening with G4 levels remaining possible.

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 ...

What Changed? Now that the new solar wind display has completed its experimental review period, the experimental banner has been removed from the title and it has become the operational display for ...

NOAA’s GOES-19 satellite measurements show the ongoing solar radiation storm has intensified to Severe (S4) on the NOAA Space Weather Scales, and it is still increasing. A Severe (S4) radiation storm ...

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 ...

As part of the Space Weather Prediction Center's rollout of our improved website, the content from POES Auroral Activity Maps is being provided in a new way.

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 ...