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WWV Geophysical Alert Message - NOAA Space Weather Prediction Center


Issued: 2014 Dec 21 0305 UTC

Solar-terrestrial indices for 20 December follow.
Solar flux 203 and estimated planetary A-index 9.
The estimated planetary K-index at 0300 UTC on 21 December was 3.

Space weather for the past 24 hours has been strong.
Radio blackouts reaching the R3 level occurred.

Space weather for the next 24 hours is predicted to be moderate.
Geomagnetic storms reaching the G2 level are likely.
Radio blackouts reaching the R1 level are expected.

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