:Product: Weekly Highlights and Forecasts
:Issued: 2018 Dec 31 0038 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# https://www.swpc.noaa.gov/content/subscription-services
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
24 - 30 December 2018

Solar activity was very low throughout the period. No Earth-directed
CMEs were observed this period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached
high levels on 29-30 December, with moderate levels on 24-25, and 28
December. Normal levels were observed on 26-27 December.

Geomagnetic field activity reached G1 (Minor) storm levels on 28
December and quiet to unsettled levels on 27, 29-30 December in
response to recurrent CH HSS infleunce. Quiet conditions prevailed
on 24-26 December.

Forecast of Solar and Geomagnetic Activity
31 December - 26 January 2019

Solar activity is expected to be very low throughout the outlook
period.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to reach high levels on 31 December, 01-03, 06-12, and
25-26 January with moderate flux levels expected on 04-05, 13-21,
and 24 January. Normal levels are expected throughout the remainder
of the period.

Geomagnetic field activity is expected to reach G1 (Minor) storm
levels on 24 January, with active levels expected on 04-06, and 16
January due to recurrent CH HSS effects. Quiet to unsettled
conditions are expected throughout the remainder of the outlook
period.