Space Weather Nowcasts Daily condition Date: 22 April 2021; 09:45 UT Summary of Space Weather. Sunspot AR2816 poses a threat C-Class solar flares. The geomagnetic conditions are quiet at all levels.The solar wind speed is declining. Space Weather parameters / observations; Sunspot Number: 47 10.7cm Flux: 78 sfu Solar wind speed: 431.5 km.s-1 Solar wind density: 6.6 protons.cm3 Kp: 2 Bz: 2.5 nT (North) Bt: 3.5 nT Dst: 1 nT