Product: Forecast Discussion Issued: 2020 Aug 06 1230 UTC Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
.24 hr Summary… Solar activity continued at very low levels. Region 2770 (N24E42, Cso/beta) exhibited slight regeneration in its trailing spots, but remained inactive. No Earth-directed CMEs were observed.
.Forecast… Solar activity is expected to remain at very low levels for 06-08 Aug.
.24 hr Summary… The greater than 2 MeV electron flux reached high levels, with a peak flux of 2,820 pfu at 05/1630 UTC. The greater than 10 MeV proton flux remained at background levels.
.Forecast… The greater than 2 MeV electron flux is anticipated to reach high levels on 06 Aug before returning to and remaining at moderate levels for 07-08 Aug. The greater than 10 MeV proton flux is expected to remain at background levels for the forecast period.
.24 hr Summary… Solar wind parameters, measured at the DSCOVR spacecraft, were indicative of continued, yet waning effects of a positive polarity CH HSS. Solar wind speeds began the period near 500 km/s, decreased to around 425 km/s for several hours, then returned to near 500 km/s for the remainder of the period. Total field strength averaged near 4 nT, and the Bz component averaged near +/-4 nT. Phi was predominantly in a positive orientation while undertaking several brief oscillations into a negative solar sector.
.Forecast… Solar wind parameters are expected to continue their waning trend on 06 Aug as positive polarity CH HSS effects subside. Ambient-like, background conditions are anticipated for 07 Aug before becoming slightly enhanced on 08 Aug due to a weak, positive polarity CH HSS.
.24 hr Summary… The geomagnetic field was at quiet levels as CH HSS influence persisted but weakened.
.Forecast… Mostly quiet conditions, with a chance for an isolated unsettled period, are anticipated for 06 Aug as CH HSS influence gradually subsides. Quiet conditions should then persist through 07 Aug before a chance for isolated unsettled conditions return 08 Aug as a positive polarity CH HSS becomes geoeffective.
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