Subject: Weekly Highlights of Solar and Geomagnetic Activity, 25 - 31 July 2022

:Product: Weekly Highlights and Forecasts
:Issued: 2022 Aug 01 0147 UTC
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# Weekly Highlights and Forecasts
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Highlights of Solar and Geomagnetic Activity
25 - 31 July 2022

Solar activity was low. The strongest event of the period was a C9
flare at 31/2309 UTC from an area around the NE limb. Region 3068
(S15, L=208, class/area=Eso/110 on 31 Jul) was the mostly complex on
the visible disk by the end of the reporting period. The region
continued to increase in area around its leader spot and developed
additional intermediate spots through 31 Jul. The remaining active
regions were relativley simple and quiet or in decay as they rotated
around the W limb.

Several CME were observed in available coronagraph imagery but none
appeared 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
moderate to high levels. High levels were observed on 25-28 Jul and
31 Jul while moderate levels observed on 29-30 Jul.

Geomagnetic field activity ranged from quiet to active levels.
Active levels were observed on 26 Jul after a period of prolonged
southward Bz and on 31 Jul due to the onset of coronal hole
influence. Unsettled levels were reached 25 Jul, 27-28 Jul, and 30
Jul, mostly due to more periods of sustained southward Bz. The
remainder of the reporting period was quiet.

Forecast of Solar and Geomagnetic Activity
01 August - 27 August 2022

Solar activity is expected to be very low over the outlook period.
Most of the regions that are expected to rotate back onto the
visible disk were either in decay or relatively simple and quiet as
they rotated around the W limb.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to range from moderate to high levels. High levels are
likely on 12-16 Aug, and again on 18-24 Aug. The remainder of the
outlook period is likely to reached moderate levels. All
enhancements in electron flux are anticipated in response to
multiple, recurrent CH HSSs.

Geomagnetic field activity is expected to be at quiet to G1 (Minor)
geomagnetic storm levels. G1 conditions are likely on 03 Aug and 17
Aug; active conditions are likely on 01 Aug, 04-05 Aug, and 18-19
Aug; unsettled conditions are likely on 06 Aug, 11-12 Aug, and 20
Aug. the remainder of the outlook period is expected to be at mostly
quiet levels. All elevated levels of geomagnetic activity are due to
multiple, recurrent, CH HSSs.


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* Origin: NOAA Space Weather Prediction Center (3:633/280.2@fidonet)