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Old September 5th 16, 04:30 PM posted to rec.radio.amateur.dx,rec.radio.amateur.space,rec.radio.shortwave,rec.radio.info
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Default Weekly Highlights of Solar and Geomagnetic Activity, 29 August - 04 September 2016

:Product: Weekly Highlights and Forecasts
:Issued: 2016 Sep 05 0405 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
29 August - 04 September 2016

Solar activity was at low levels from 29-31 Aug. Regions 2583 (N13,
L=025, class/area Dao/130 on 29 Aug) and 2585 (N08, L=222,
class/area Ekc/590 on 03 Sep) were responsible for the C-class
activity. Activity dropped to very low levels for the remainder of
the period. No Earth-directed CMEs were observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
high levels on 29 Aug and 02-04 Sep due to CH HSS influence.

Geomagnetic field activity was at quiet to unsettled levels on 29-31
Aug with active conditions late on 30 Aug due to CH HSS effects.
Mostly active to major storm conditions were observed on 01-03 Sep
due to effects from an extension of the northern polar coronal hole.
Active to minor storm levels prevailed on 04 Sep due to continued CH
HSS effects.

Forecast of Solar and Geomagnetic Activity
05 September - 01 October 2016

Solar activity is expected to be at very low to low levels
throughout the forecast period.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to reach high to very high levels on 05-12 Sep due to CH
HSS influence. Normal to moderate levels are expected from 13-20 Sep
and 26-28 Sep. High levels are expected on 21-25 Sep and 29 Sep-01
Oct due to effects from anticipated recurrent CH HSS events.

Geomagnetic field activity is expected to be at unsettled to active
levels on 05-06 Sep with minor storms expected early on 05 Sep as CH
HSS effects continue. Quiet to unsettled conditions are expected on
07-08 Sep as effects begin to subside. Mostly quiet conditions are
expected from 09-18 Sep with isolated unsettled periods likely on
13, 14 and 17 Sep due to weak recurrent CH HSS events. Quiet to
unsettled levels are expected on 19-21 Sep with active periods
possible on 19 Sep due to effects from a recurrent, negative
polarity CH HSS. Mostly quiet conditions are expected from 22-25
Sep. Quiet to unsettled conditions are expected on 26-27 Sep
followed by active to major storm levels from 26 Sep-01 Oct due to
effects from the northern polar coronal hole extension.

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