Space Weather Nowcasts Daily condition Date: 10 September 2021; 09:45 UT Summary of Space Weather. Sunspots AR2866 and AR2868 are slowly cracking with C-class solar flares. The geomagnetic conditions are quiet. The solar wind speed has declined. Space Weather parameters / observations; Sunspot Number: 124 10.7cm Flux: 100 sfu Solar wind speed: 343.7 km.s-1 Solar wind density: 9.7 protons.cm3 Kp: 2 Bz: 2.0 nT (North) Bt: 4.5 nT Dst: -11 nT