Space Weather Nowcasts Daily condition Date: 25 September 2021; 09:45 UT Summary of Space Weather. Sunspot AR2871 poses a continued threat fo C-class solar flares. The geomagnetic condition are quiet at all levels. The solar wind speed is moderately high. Space Weather parameters / observations; Sunspot Number: 75 10.7cm Flux: 88 sfu Solar wind speed: 533,3 km.s-1 Solar wind density: 7.3 protons.cm3 Kp: 2 Bz: 3.2 nT (North) Bt: 4.2 nT Dst: -9 nT