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Here is this week's space weather and geophysical report, issued 2021 Jul 12 0350 UTC.
Highlights of Solar and Geomagnetic Activity 05 - 11 July 2021
Solar activity was at very low to low levels. Region 2840 (N27, L=034, class/area Bxo/010 on 08 Jul) produced the strongest event of the period, a C7 flare at 09/1050 UTC. A Type II radio sweep, and several other C-class X-ray events, were produced by the region while it was just past the W limb. Region 2835 (S18, L=052, class/area Ekc/770 on 01 Jul) was the largest region of the period, but only produced some low-level C-class activity as it rotated around the SW limb after 06 Jul. The remaining numbered regions on the visible disk were relatively simple and quiet. Of the multiple coronal mass ejections observed during the period, none were determined to have an Earth-directed component.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels.
Geomagnetic field activity was quiet to unsettled. Some extended periods of southward Bz were followed by a few isolated unsettled periods on 05-06 Jul. Another period of unsettled was observed on 10 Jul which may have been caused by weak influence from a positive polarity coronal hole that rapidly decayed as it crossed the central meridian of the Sun. The remainder of the reporting period was quiet.
Forecast of Solar and Geomagnetic Activity 12 July - 07 August 2021
Solar activity is expected to be at very low levels throughout the outlook period. There is a chance for elevated activity from old Region 2838 (N24, L=088), Region 2835 (S18, L=068) and Region 2840 (N27, L=045) as they are expected to rotate back onto the visible disk on 16 Jul, 20 Jul, and 21 Jul, respectively.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal to moderate levels on 12 Jul and from 19 Jul - 07 Aug. High levels, caused by interaction with a negative polarity CH HSS, is likely for 13-18 Jul.
Geomagnetic field activity is expected to be at quiet to active levels. A negative polarity CH HSS. that is connected to the southern crown coronal hole. is expected to elevate geomagnetic activity to active levels on 12-14 Jul and unsettled levels on 15-16 Jul. A small, positive polarity CH HSS is likely to cause unsettled conditions on 02 Aug. The remainder of the outlook period is expected to be at quiet levels.
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![Weekly Propagation Summary - 2021 Jul 12 16:10 UTC]()
Live data and images: SunSpotWatch.com
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