Space Weather Nowcasts Daily condition Date: 29 September 2021; 10:45 UT Summary of Space Weather. Sunspot AR2880 is growing rapidly and could soon pose a threat for solar flares. The geomagnetic conditions are quiet at all levels. The solar wind speed is declining. Space Weather parameters / observations; Sunspot Number: 57 10.7cm Flux: 89 sfu Solar wind speed: 441.4 km.s-1 Solar wind density: 3.8 protons.cm3 Kp: 1 Bz: -1.9 nT (South) Bt: 4.1 nT Dst: -6 nT