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WWV Geophysical Alert Message - NOAA Space Weather Prediction Center


Issued: 2017 Aug 16 1205 UTC

Solar-terrestrial indices for 15 August follow.
Solar flux 74 and estimated planetary A-index 4.
The estimated planetary K-index at 1200 UTC on 16 August was 2.

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

Space weather for the next 24 hours is predicted to be minor.
Geomagnetic storms reaching the G1 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 If it appears incomplete or outdated, click here for alternate version.

    3-Day Forecast - Text Alert System Terminology    

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 the Not Found page for a new link to Dashboards.

Grayline and MUF World Map Updates every 5 minutes; also shows 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 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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