Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts
:Issued: 2020 Oct 26 0405 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
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#                Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
19 - 25 October 2020

Solar activity was very low with only B-class flare activity
observed primarily from Region 2776 (S14, L=162, class/area Cso/100
on 18 Oct). 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
normal to moderate levels on 19-24 Oct. High levels were reached on
25 Oct due to coronal hole high speed stream (CH HSS) influence. The
maximum flux was 5,670 pfu observed at 25/1845 UTC.

Geomagnetic field activity ranged from quiet to active levels. Solar
wind parameters were at or near nominal levels on 19-22 Oct with
solar wind speed ranging from 327-450 km/s and total field from 1-10
nT. The geomagnetic field was at quiet levels on 20 Oct, quiet to
unsettled levels on 19 and 22 Oct, and isolated active levels were
observed on 21 Oct. By 23 Oct, a positive polarity CH HSS became
geoeffective. Solar wind speed increased to a maximum near 595 km/s
while total field initially increased to 15 nT. The geomagnetic
field responded with quiet to active levels on 23-25 Oct.

Forecast of Solar and Geomagnetic Activity
26 October - 21 November 2020

Solar activity is expected to be at very low levels with a slight
chance for C-class flares on 26 Oct - 01 Nov as new Region 2778
(S19, L=088, class/area Cai/080 on 26 Oct) rotates across the
visible disk. Very low levels are expected on 02-21 Nov.

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 02-20 Nov. High
levels are expected on 26 Oct - 01 Nov and again on 21 Nov due to CH
HSS influences.

Geomagnetic field activity is expected to be reach unsettled to
active levels on 26-29 Oct, 01 Nov, and 17-21 Nov with G1 (Minor)
geomagnetic storm levels likely on 26 Oct due to recurrent CH HSS
effects.

:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2020 Oct 26 0405 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
#
#      27-day Space Weather Outlook Table
#                Issued 2020-10-26
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2020 Oct 26      74          20          5
2020 Oct 27      72          15          4
2020 Oct 28      70          10          3
2020 Oct 29      70           8          3
2020 Oct 30      70           5          2
2020 Oct 31      72           5          2
2020 Nov 01      74           8          3
2020 Nov 02      74           5          2
2020 Nov 03      74           5          2
2020 Nov 04      74           5          2
2020 Nov 05      74           5          2
2020 Nov 06      74           5          2
2020 Nov 07      74           5          2
2020 Nov 08      75           5          2
2020 Nov 09      75           5          2
2020 Nov 10      75           5          2
2020 Nov 11      75           5          2
2020 Nov 12      75           5          2
2020 Nov 13      72           5          2
2020 Nov 14      70           5          2
2020 Nov 15      70           5          2
2020 Nov 16      70           5          2
2020 Nov 17      70          10          3
2020 Nov 18      70           8          3
2020 Nov 19      70          12          4
2020 Nov 20      70          18          4
2020 Nov 21      68          15          4