Composito
Issued: 2019 Oct 22 0030 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
Solar Activity 24 hr summary
Solar activity was very low. No Earth-directed CMEs were observed in available satellite imagery.
Solar Activity Forecast
Solar activity is expected to persist at very low levels on 22-24 Oct.
Energetic Particle 24 hr summary
The greater than 2 MeV electron flux was normal and the greater than 10 MeV proton flux was at background levels.
Energetic Particle Forecast
The greater than 2 MeV electron flux is expected to be normal to moderate on 22-24 Oct, and the greater than 10 MeV proton flux is expected to continue at background levels throughout the forecast period.
Solar Wind 24 hr summary
Solar wind parameters were at background levels under a nominal solar wind regime.
Solar Wind Forecast
Weak enhancements in the near-Earth solar wind environment are still possible on 22 Oct due to the influence of a negative polarity CH HSS. Background solar wind conditions are expected on 23 Oct with the return to a nominal solar wind regime. Late on 24 Oct, a CIR ahead of an anticipated positive polarity CH HSS is expected to produce enhancements in the solar wind environment that are expected to last beyond this forecast period.
Geospace 24 hr summary
The geomagnetic field was quiet to unsettled this period.
Geospace Forecast
The geomagnetic field is expected to reach unsettled levels, with isolated active periods on 22 Oct with possible impacts from the negative polarity CH HSS. Generally quiet conditions are expected to prevail on 23 Oct with the return of a nominal solar wind regime. Late on 24 Oct, a positive polarity CH HSS is expected to move into a geoeffective position, increasing activity to mostly unsettled to active levels, with isolated G1 (minor) storm periods.