By: Gordon Rutherford
Northern Hemisphere
Southern Hemisphere
Product: Forecast Discussion
Issued: 2020 Jul 27 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. Region 2767 (S20W01, Hsx/alpha) was quiet and stable. No Earth-directed CMEs were observed in available imagery.
Forecast Solar activity is expected to remain at very low levels on 27-29 Jul. Energetic Particles .24 hr Summary The greater than 2 MeV electron flux reached moderate levels and the greater than 10 MeV proton flux remained at background levels.
Forecast The greater than 2 MeV electron and 10 MeV proton fluxes are expected toremain below event thresholds on 27-29 Jul.
Solar Wind 24 hr Summary Solar wind parameters, as measured by the DSCOVR spacecraft, reflected nominal conditions. Total magnetic field strength was at or below 5 nT. Solar wind speeds were between 357-427 km/s. Phi angle was oriented in the negative sector.
Forecast The solar wind environment is expected to continue at nominal levels on 27 Jul. A weak enhancement is anticipated on 28-29 Jul as a negative polarity CH HSS becomes geoeffective.
Geospace 24 hr Summary... The geomagnetic field was quiet.
Forecast The geomagnetic field is expected to be at mostly quiet levels on 27Jul. Quiet to unsettled levels are expected on 28-29 Jul due to the anticipated onset of CH HSS influence.
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