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WWV Geophysical Alert Message - NOAA Space Weather Prediction Center

Issued: 2018 Mar 19 0605 UTC

Solar-terrestrial indices for 18 March follow.
Solar flux 69 and estimated planetary A-index 25.
The estimated planetary K-index at 0600 UTC on 19 March was 4.

Space weather for the past 24 hours has been moderate.
Geomagnetic storms reaching the G2 level occurred.

No space weather storms are predicted for the next 24 hours.

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 If it appears incomplete or outdated, click here for alternate version.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.

*If NOAA moves their blessed radio dashboard AGAIN, search their Not Found page for a new link to Dashboards.

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

Blitzortung Live Lightning Map Real-time strike data.

LightningMaps.org Blitzortung data with fancier graphics.

Vaisala Lightning Tracker Delayed cumulative info.

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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