Composito
Issued: 2019 Sep 06 1230 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
Solar Activity 24 hr summary
Solar activity was at very low levels. No Earth-directed CMEs were observed in available imagery.
Solar Activity Forecast
Solar activity is expected to be very low on 06-08 Sep.
Energetic Particle 24 hr summary
The greater than 2 MeV electron flux reached high levels with a peak of 7,820 pfu observed at 05/2015 UTC. The greater than 10 MeV proton flux was at background levels.
Energetic Particle Forecast
The greater than 2 MeV electron flux is expected to reach high to very high levels on 06-08 Sep in response to CH HSS influence. The greater than 10 MeV proton flux is expected to continue at background levels.
Solar Wind 24 hr summary
Solar wind parameters were indicative of negative CH HSS influences. Solar wind speeds remained above 500 km/s throughout the majority of the reporting period, total field peaked at 7 nT, and the Bz component dropped as low as -6 nT. The phi angle was variable until approximately 06/0245 UTC when it switched to a positive orientation.
Solar Wind Forecast
Solar wind parameters are anticipated to remain enhanced on 06-08 Sep as CH HSS influences persist.
Geospace 24 hr summary
The geomagnetic field was quiet to unsettled with an isolated period of active conditions due to CH HSS influence.
Geospace Forecast
The geomagnetic field is expected to be at quiet to unsettled levels, with a chance for isolated periods of active conditions, on 06 Sep. Quiet to unsettled levels are expected on 07-08 Sep in response to a CH HSS effects.