Composito
Issued: 2019 Nov 11 1230 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 active regions with sunspots or Earth directed CMEs were observed.
Solar Activity Forecast
Solar activity is expected to continue at very low levels on 11-13 Nov.
Energetic Particle 24 hr summary
The greater than 2 MeV electron flux was at normal to moderate levels while the greater than 10 MeV proton flux remained at background levels.
Energetic Particle Forecast
The greater than 2 MeV electron flux is expected to be normal to moderate on 11-13 Nov and the greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period.
Solar Wind 24 hr summary
Solar wind parameters were at background levels through about 11/0300 UTC when a gradual enhancement in parameters was observed. Increases in density, wind speed and total field indicated an anticipated CIR in advance of a negative polarity CH HSS became geoeffective. Shortly after 11/0900 UTC, wind speed peaked near 370 km/s, total field peaked at 11 nT while the Bz component reached a maximum southward extent of -11 nT.
Solar Wind Forecast
An enhancement in the near-Earth solar wind environment is expected to persist on 11-12 Nov due to CH HSS influence. A return to nominal conditions is anticipated by 13 Nov.
Geospace 24 hr summary
The geomagnetic field was at quiet to unsettled levels under and enhanced solar wind environment.
Geospace Forecast
The geomagnetic field is likely to reach active periods intermittently on 11 Nov due to CH HSS influence. Quiet to unsettled conditions are expected on 12 Nov, and generally quiet conditions are expected on 13 Nov, as CH HSS influence wanes and subsides.