:Product: Weekly Highlights and Forecasts
:Issued: 2016 Nov 21 0507 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
14 - 20 November 2016

Solar activity was very low through the period with only a few
low-level B-class flares observed from Regions 2610 (N16, L=018,
class/area Dao/050 on 17 November), and 2611 (N03, L=291, class/area
Cao/020 on 18 November). No Earth-directed coronal mass ejections
(CME) were observed in available satellite imagery during the
reporting period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
high levels throughout the period (14-20 November). The maximum flux
of 19,442 pfu was observed at 15/1530 UTC.

Geomagnetic field activity was at quiet to unsettled levels on 14-15
November in response to waning influence from a negative polarity
coronal hole high speed stream (CH HSS). Solar wind speed steadily
decreased from a peak of 681 km/s to period ending values below 400
km/s. Total field ranged between 1 and 7 nT while the Bz component
reached a maximum southward deviation of -6 nT. Quiet conditions
were observed on 16-20 November under an ambient solar wind
environment.

Forecast of Solar and Geomagnetic Activity
21 November - 17 December 2016

Solar activity is expected to be at very low levels with a slight
chance for C-class flares over the forecast period.

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 with high levels likely
on 22 November - 07 December, and 10-17 December due to recurrent CH
HSS influence.

Geomagnetic field activity is expected to be at unsettled to active
levels on 21-29 November and 07-11 December, with G1 (Minor)
geomagnetic storm levels likely on 22-24 November, due to recurrent
CH HSS effects.