NOAA NWS Space Weather Prediction Center

NOAA NWS Space Weather Prediction Center Safeguarding society with actionable space weather information.

NWS is using Facebook as a supplemental channel to disseminate environmental information and promote weather awareness activities including outreach and educational efforts. For more detailed information on this service, seehttp://weather.gov/infoservicechanges/localfacebook_sdd.pdf (clickable link in Website section)

A new real-time solar wind viewer is now available on our webpage at https://www.swpc.noaa.gov/products/solar-wind. The ...
05/28/2026

A new real-time solar wind viewer is now available on our webpage at https://www.swpc.noaa.gov/products/solar-wind. The new display makes it much easier to modify timelines, switch between data source (ACE or DSCOVR), and more. The experimental phase of this product lasts to 30 June, 2026.

Lack of noteworthy sunspots & low solar activity calls for only a chance of M-class flares (R1-R2 events) the next three...
05/18/2026

Lack of noteworthy sunspots & low solar activity calls for only a chance of M-class flares (R1-R2 events) the next three days. However, solar far-side imagery from NASA Solar Orbiter means the forecast could change for 20 May and beyond. Stay aware at spaceweather.gov

05/14/2026

G2 Watch for 15 May UTC-day and G1 Watches for 16-17 May. Why? Coronal Hole High Speed Stream (CH HSS) and Co-rotating Interaction Region (CIR) influences. What are these? This SWPC video update attempts to explain this and what this means in the solar wind & the forecast.

A slow moving transient arrived later on 4 May and led to a few brief periods of G1-G2 storm levels. Transient passage c...
05/05/2026

A slow moving transient arrived later on 4 May and led to a few brief periods of G1-G2 storm levels. Transient passage continues as of now, but not favorably oriented for enhanced activity at this time. Stay space weather aware at spaceweather.gov

A G2 Warning was issued through 23:59 UTC on 04 May due to the passage of a magnetic transient likely associated with an...
05/04/2026

A G2 Warning was issued through 23:59 UTC on 04 May due to the passage of a magnetic transient likely associated with an eruption that left the Sun on 30 April.

05/04/2026

How do we know there may be active regions (i.e. sunspots) on the other side of the Sun? Check out this latest educational video from SWPC to learn more about how our forecasters use helioseismology and Solar Orbiter imagery to help with our forecasts. U.S. National Weather Service (NWS)

05/01/2026

Where are we at in the current solar cycle - that 11-year on average period of time when the Sun goes from a minimum of activity to a maximum and back to minimum. Meet Dr. Mark Miesch in this SWPC video to explain more.

04/27/2026

Our NOAA GOES-19 CCOR-1 instrument is critical for observing and analyzing CMEs. But, sometimes, other activity comes into view, that while not space weather, is still fascinating! Such as this animation showing the recent passage of Comet C/2025 R3 (PanSTARRS).

X2.5 flare (R3-Strong) observed at 24/0813 UTC from near NW solar limb. Appears to originate just NW of active Region 44...
04/24/2026

X2.5 flare (R3-Strong) observed at 24/0813 UTC from near NW solar limb. Appears to originate just NW of active Region 4419. Monitor our webpage for updates.

04/23/2026

Activity Update for 23 April, 2026: A pair of sunspot groups erupted in R1 level solar flares today and each produced a CME. To learn more about today's activity and what we are looking at closely for the forecast, check out our latest SWPC video and stay space weather aware at spaceweather.gov U.S. National Weather Service (NWS)

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