Space Weather Nowcasts Daily condition Date: 22 September 2021; 10:50 UT Summary of Space Weather. Sunspot AR2871 is cracking with for C-class solar flares. The geomagnetic conditions are unsetteled.The solar wind speed has increased. Space Weather parameters / observations; Sunspot Number: 50 10.7cm Flux: 80 sfu Solar wind speed: 382.6 km.s-1 Solar wind density: 5.1 protons.cm3 Kp: 4 Bz: -3.3 nT (South) Bt: 5.2 nT Dst: -35 nT