noaa-swpc

Get current space weather alerts and warnings from NOAA's Space Weather Prediction Center (SWPC). Returns active geomagnetic storm watches, solar radiation storms, radio blackout alerts, and other space weather advisories. Each alert includes severity level, issue time, and description. Essential for aurora chasers, satellite operators, aviation planners, and power grid managers who need to monitor geomagnetic disturbances.

Archive of issued NOAA SWPC alerts: geomagnetic storm watches, solar radiation storms, radio blackout warnings, and more. Filter by ?start and ?end. Ideal for post-mortems on specific events, training data for alert prediction models, and historical context when an alert fires today.

Get recent solar flare events from NOAA SWPC, including flare class (A, B, C, M, X), peak time, begin/end times, and source active region. M-class and X-class flares can cause radio blackouts, GPS disruptions, and enhanced aurora displays. Useful for amateur radio operators monitoring propagation conditions, aurora forecasters, space weather researchers, and satellite operators assessing radiation risk.

Historical GOES X-ray flare flux readings archived continuously. Filter by ?energy band (short/long) and ?start/?end. Useful for studying solar flare distributions, correlating flares with aurora or radio-blackout events, and long-term analysis of solar-cycle activity.

Get recent planetary K-index (Kp) values from NOAA SWPC, the primary indicator of geomagnetic storm activity. The Kp index ranges from 0 (quiet) to 9 (extreme storm). Values of 5+ indicate geomagnetic storms visible as aurora at lower latitudes. Returns a time series of recent Kp readings. Critical for aurora prediction apps, satellite drag calculations, GPS accuracy monitoring, and space weather dashboards.

Full time series of planetary Kp index readings collected continuously from NOAA SWPC. Filter with ?start and ?end. Valuable for aurora forecasters correlating past activity with sightings, space weather researchers studying storm distributions, and dashboards plotting geomagnetic trends over months or years.

Get recent daily sunspot numbers from NOAA SWPC, tracking solar activity levels. Sunspot numbers correlate with the 11-year solar cycle and predict space weather intensity. Higher sunspot counts mean more frequent solar flares, coronal mass ejections, and aurora displays. Useful for solar cycle tracking dashboards, long-term space weather forecasting, amateur astronomy tools, and climate research applications studying solar irradiance variability.