:Product: Weekly Highlights and Forecasts
:Issued: 2016 Aug 29 0520 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 22 - 28 August 2016
Solar activity was at very low levels the
majority of the period
with low levels reached on 28 August due to an
isolated C1/Sf flare
at 28/2128 UTC from Region 2583 (N13, L=023, class/area
Dao/030 on
28 Aug). Regions 2579 (N12, L=034, class/area Dao/090 on 23 Aug)
and
2581 (N12, L=337, class/area Cao/110 on 28 Aug) were the largest
spot
groups on the visible disk, but were in a decay phase as of 24
and 28 August,
respectively. 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 was
at
normal levels on 22 August, moderate levels on 23-24 August, and
high
levels from 25-28 August. The maximum flux reached 2,334 pfu at
27/1705 UTC.
Geomagnetic field activity ranged from quiet to G1-minor storm
levels
during the period. The beginning of the period, solar wind
conditions were
nominal with solar wind speeds between 350 km/s and
420 km/s. The geomagnetic
field was at quiet levels on 22 August. By
23 August, total field increased
to around 14 nT with the solar wind
speed increasing to around 550 km/s as a
negative polarity coronal
hole high speed stream (CH HSS) moved into
geoeffective position. By
midday on 24 August, total field had decreased to
near 5 nT, however
solar wind speeds remained elevated until late on 25
August when
they began to decline. The geomagnetic field responded with quiet
to
G1-minor storm levels on 23-24 August, followed by quiet to
unsettled
conditions on 25-27 August. Quiet conditions were observed
on 28 August under
a nominal solar wind environment.
FORECAST OF SOLAR AND GEOMAGNETIC
ACTIVITY 29 AUGUST-24 SEPTEMBER 2016
Solar activity is expected to be at
very low to low levels
throughout the 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
expected on 31 August-12 September and again from 21-24
September
due to recurrent CH HSS activity.
Geomagnetic field
activity is expected to be at unsettled to active
levels on 29 August-08
September, 13-14 September, 17 September, and
19-21 September with G1-minor
storm levels likely on 29-30 August
due to recurrent CH HSS
activity.
:Product: 27-day Space Weather Outlook Table
27DO.txt
:Issued: 2016 Aug 29 0520 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
2016-08-29
#
# UTC Radio Flux Planetary Largest
#
Date 10.7 cm A Index Kp Index
2016 Aug 29 85
20 5
2016 Aug 30 82 18 5
2016 Aug 31
82 10 3
2016 Sep 01 85 15 4
2016
Sep 02 85 12 4
2016 Sep 03 80
10 3
2016 Sep 04 80 8 3
2016 Sep 05
78 15 4
2016 Sep 06 78 15 4
2016
Sep 07 78 8 3
2016 Sep 08 78
10 3
2016 Sep 09 78 5 2
2016 Sep 10
78 5 2
2016 Sep 11 80 5 2
2016
Sep 12 82 5 2
2016 Sep 13 82
10 3
2016 Sep 14 82 8 3
2016 Sep 15
82 5 2
2016 Sep 16 82 5 2
2016
Sep 17 80 8 3
2016 Sep 18 80
5 2
2016 Sep 19 80 15 4
2016 Sep 20
80 12 4
2016 Sep 21 80 8 3
2016
Sep 22 82 5 2
2016 Sep 23 85
5 2
2016 Sep 24 85 5 2
(SWPC via
DXLD)
