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WWV Geophysical Alert Message - NOAA Space Weather Prediction Center

Issued: 2016 Oct 24 1805 UTC

Solar-terrestrial indices for 23 October follow.
Solar flux 77 and estimated planetary A-index 8.
The estimated planetary K-index at 1800 UTC on 24 October was 3.

No space weather storms were observed for the past 24 hours.

Space weather for the next 24 hours is predicted to be moderate.
Geomagnetic storms reaching the G2 level are likely.

NOAA updates this message every 3 hours; more often for alerts. If it appears incomplete or outdated, click here for alternate version.

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Additional info at The SWPC Radio Dashboard from NOAA.
Detailed explanation of the R, S, and G Scales used by NOAA in their predictions.

Grayline and MUF World Map Updates every 5 minutes; also shows x-ray absorption contours when applicable.

Lightning Tracker Recent electrical storm info from Vaisala.

The Solar Terrestrial Activity Report from Jan Alvestad; valuable propagation resource with solar flux, sunspot number, planetary A index, CMEs and coronal holes.

SpaceWeather.com tracks daily events on the Sun, the solar wind, meteor rates, NASA forecasts, and other astronomical phenomena.




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