:Product: Geophysical Alert Message wwv.txt :Issued: 2025 Sep 15 2105 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 15 September follow. Solar flux 130 and estimated planetary A-index 50. The estimated planetary K-index at 2100 UTC on 15 September was 3.67. Space weather for the past 24 hours has been strong. Geomagnetic storms reaching the G3 level occurred. Space weather for the next 24 hours is predicted to be minor. Geomagnetic storms reaching the G1 level are expected.