:Issued: 2017 Oct 30 0510 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 23 - 29 October 2017
Solar activity was at very low levels. The largest and only event of
the period was a B1 flare at 27/0044 UTC from Region 2686 (N13,
L=108, class/area Hax/030 on 27 Oct). No Earth-directed coronal mass
ejections were observed during the period.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached
moderate levels on 23 Oct with high levels on 24-29 Oct. The largest
flux of the period was 3,103 pfu observed at 29/1510 UTC.
Geomagnetic field activity ranged from quiet to G1 (Minor) storm
levels. The period began under nominal solar wind conditions with
wind speeds ranging between 330 to 415 km/s and total field
measurements under 7 nT. The geomagnetic field was at quiet to
unsettled levels on 23 Oct. At 24/0730 UTC, wind speeds began to
increase and total field became enhanced due to the arrival of a
corotating interaction region (CIR) in advance of a recurrent,
positive polarity coronal hole high speed stream (CH HSS). Wind
speed increase to a period high of 675 km/s at 25/1945, total field
achieved a max of 15 nT at 24/1140 UTC and the Bz component of the
interplanetary magnetic field dropped to a low of -10 nT at 24/1017
UTC as a result of this feature. The geomagnetic field responded
with quiet to G1 (Minor) storm levels on 24-25 Oct and quiet to
active levels on 26 Oct. The remainder of the period was indicitive
of waning CH HSS influence with decreasing wind speeds and a less
enhanced total field. Quiet to unsettled conditions were observed on
27 Oct and quiet conditions prevailed on 28-29 Oct.
FORECAST OF SOLAR AND GEOMAGNETIC ACTIVITY 30 OCTOBER-25 NOVEMBER 2017
Solar activity is expected to be at very low levels with a slight
chance for C-class flares on 30 Oct - 04 Nov and 15-25 Nov due to
flare potential from Regions 2685 (S09, L=131, class/area Hax/070 on
22 Oct) and 2686. Very low levels are expected on 05-14 Nov.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is
likely to be at high levels on 30 Oct - 01 Nov, 03-06, 08-15, 17-18,
and 21-25 Nov with very high levels on 11-14 Nov due to CH HSS
influence.
Geomagnetic field activity is expected to be at unsettled to active
levels on 02-05, 07-12, 15-17, 20-22 Nov, with G1 (Minor) storm
levels likely on 07-11, 20-22 Nov and G2 (Moderate) levels likely on
09 Nov due to recurrent CH HSS effects.
:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2017 Oct 30 0510 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/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2017-10-30
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2017 Oct 30 75 5 2
2017 Oct 31 75 5 2
2017 Nov 01 75 5 2
2017 Nov 02 72 15 4
2017 Nov 03 72 15 4
2017 Nov 04 70 10 3
2017 Nov 05 70 8 3
2017 Nov 06 70 5 2
2017 Nov 07 70 28 5
2017 Nov 08 70 30 5
2017 Nov 09 70 40 6
2017 Nov 10 70 28 5
2017 Nov 11 70 25 5
2017 Nov 12 70 8 3
2017 Nov 13 70 5 2
2017 Nov 14 71 5 2
2017 Nov 15 72 12 4
2017 Nov 16 72 10 3
2017 Nov 17 73 8 3
2017 Nov 18 74 5 2
2017 Nov 19 75 5 2
2017 Nov 20 75 20 5
2017 Nov 21 75 20 5
2017 Nov 22 75 20 5
2017 Nov 23 75 5 2
2017 Nov 24 75 5 2
2017 Nov 25 75 5 2
(via DXLD)
