Space Weather Nowcasts Daily condition Date: 17 July 2021; 09:45 UT Summary of Space Weather. All the three sunspots on the solar disc are cracking with B-class solar flares. The geomagnetic conditions are quiet at all levels. The solar wind speed is declining. Space Weather parameters / observations; Sunspot Number: 35 10.7cm Flux: 75 sfu Solar wind speed: 408.5 km.s-1 Solar wind density: 5.7 protons.cm3 Kp: 1 Bz: -0.2 nT (South) Bt: 3.9 nT Dst: 1 nT6