Space Weather Nowcasts Daily condition Date: 21 December 2019; 09:45UT Summary of Space Weather. The sun is spotless. The geomagnetic conditions are quirt at all levels. The solar wind speed is declining. Space Weather parameters / observations; Sunspot Number: 0 10.7cm Flux: 70 sfu Solar wind speed: 403.4 km.s-1 Solar wind density: 4.7 protons.cm3 Kp: 2 Bz: -3.2 nT (South) Bt: 3.7 nT Dst: -7 nT