Monitor solar activity and other space-weather information that can affect radio propagation, satellites, navigation systems and Earth's upper atmosphere.

This globe-style map estimates the geographic point beneath the Sun–Earth line (the subsolar point), the sunlit hemisphere, and Blue Springs, Missouri. Solar wind physically encounters the bow shock and magnetosphere above Earth rather than striking the ground at this point.

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Data: NOAA Space Weather Prediction Center. Map geometry is calculated locally from UTC time. Arrival time assumes an upstream monitor near L1 (~1.5 million km) and is an estimate only.

This experimental monitor highlights when NOAA forecast guidance indicates a coronal-hole high-speed stream is Earth-connected, then compares it with the real-time solar wind.

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A coronal hole visible on the Sun is not automatically geoeffective. This monitor only marks it Earth-facing/connected when NOAA forecast guidance indicates a coronal-hole or high-speed-stream influence. It is experimental and should not be used for operational safety decisions.

Explore the international sunspot number using official WDC-SILSO data.

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Source: WDC-SILSO, Royal Observatory of Belgium. Sunspot Number Version 2.0.

Track current geomagnetic activity and NOAA SWPC's 3-hour Kp forecast. Kp ranges from 0–9; Kp 5 or greater corresponds to a NOAA geomagnetic storm level.

Recent observed Kp

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Source: NOAA / NWS Space Weather Prediction Center. Forecast values may change as solar-wind conditions evolve.