Solar activity continues to rise abruptly! This increase in the 10.7cm radio flux is another 14sfu increase since just this morning. Expect fireworks.
:Product: Geophysical Alert Message wwv.txt :Issued: 2021 Dec 15 2100 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 15 December follow. Solar flux 103 and estimated planetary A-index 11. The estimated planetary K-index at 2100 UTC on 15 December was 2. No space weather storms were observed for the past 24 hours. No space weather storms are predicted for the next 24 hours.