:Product: Forecast Discussion
:Issued: 2020 Jun 05 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 2765 (Hsx/alpha) rotated further
onto the visible disk, but was still foreshortened. USAF observatories
reported some surging from the region as observed in H/A light, however,
there were no B-level or higher X-ray flux enhancements. No
Earth-directed CMEs were observed in available coronagraph imagery.

.Forecast...
Very low solar activity is expected to continue, with a slight chance
for C-class flares 05-07 Jun, due to the minor instability noted in
Region 2765.

Energetic Particle

.24 hr Summary...
The greater than 2 MeV electron flux was predominantly normal and the
greater than 10 MeV proton flux maintained background values.

.Forecast...
The greater than 2 MeV electron flux is expected to continue at
primarily normal levels and the greater than 10 MeV proton flux is
expected to remain at background 05-07 Jun.

Solar Wind

.24 hr Summary...
Solar wind parameters were indicative of a slow regime and proximity to
the HCS. Total IMF strength ranged primarily from 3 to 5 nT and the Bz
component underwent weak deviations most of the period. Solar wind speed
was mainly less than 350 km/s. The phi angle shifted between sectors
throughout the period.

.Forecast...
Primarily a slow solar wind regime is anticipated 05-07 Jun, however,
proximity to the HCS and SSBC crossings may allow for weak disturbances
in the IMF on 05 Jun. Possible minor influences from a weak, tenuous CH
HSS may also cause minor disturbances and enhancements 06-07 Jun.

Geospace

.24 hr Summary...
Quiet conditions were observed during the period.

.Forecast...
Quiet conditions, with a chance of an unsettled period in response to
minor SSBC effects, are expected 05 Jun. Primarily quiet conditions,
with isolated unsettled periods likely, are expected 06-07 Jun due to
possible weak influences of a tenuous CH HSS.