NOAA Space Weather Prediction Center
The United States' official source for space-weather forecasts and alerts — solar wind, the planetary K-index, the geomagnetic storm scale, and radio-blackout and radiation warnings. CONNECTED: eleven SWPC products are fetched live and shown at /space-weather, each with the provider's own timestamp.
Provider status
- Status
- connected
- Data shown
- none on this page — see /space-weather
- Endpoint
- services.swpc.noaa.gov/
- Licence
- Public US government data (NOAA/SWPC); attribution expected.
- Fetched at
- —
- Stale
- no
This is NOAA Space Weather Prediction Center's catalogue entry: what it is, what it serves, and under what terms. It carries no measurement — the live readings from this provider are fetched at request time and shown at /space-weather, each with the provider's own timestamp.
What it provides
- Solar wind (ACE/DSCOVR)
- Planetary K-index (Kp)
- Geomagnetic storm scale (G1–G5)
- Radio blackout (R) & radiation (S) scales
- Watches, warnings & alerts
Limitations
Connected end-to-end since 2026-08-29. Values come from SWPC's public JSON services with no key and no scraping; each product is cached for a window shorter than its own publication cadence and is marked stale once it passes it. Solar-wind values are measured at the L1 Lagrange point, roughly an hour upstream of Earth, not at Earth. When SWPC cannot be reached, no value is shown — nothing is assumed, substituted or fabricated.
Organisation & phenomena
Knowledge connections
- Associated withSpace Weather Prediction Center (SWPC)
- Associated withSolar Wind
- Associated withGeomagnetic Storm
Sources
The primary and reference sources this topic draws on.
- NOAA SWPCNOAA Space Weather Prediction Center
Space-weather forecasts and alerts: aurora (OVATION), the Kp index, and the G1–G5 geomagnetic storm scale.