 |
| NOAA - 'Cranky Sun' |
:Issued:
2017 Jul 03 0114 UTC
#
Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
Product description and SWPC web contact www.swpc.noaa.gov/weekly.html
# Weekly Highlights and Forecasts
#
Highlights
of Solar and Geomagnetic Activity 26 June - 02 July 2017
Solar
activity was very low throughout the period. Region 2664 (N18, L=313, class/area=Dsi/100 on 27 Jun) was the most active region this week
but only produced low-level B-class flare activity. A very faint
CME, not associated with a flare event, was detected in coronagraph
imagery midday on 27 Jun and is believed to have arrived at
Earth late on 30 Jun/early on 01 Jul, causing a solar wind disturbance.
Another, larger, partial halo CME associated with a long-duration
B1 flare from Region 2664 was detected in coronagraph imagery
midday on 28 Jun. This event is expected to arrive at Earth
on
03 Jul.
No
proton events were observed at geosynchronous orbit.
The
greater than 2 MeV electron flux at geosynchronous orbit reached moderate
levels on 26-30 Jun with normal levels observed on 01-02 Jul.
Geomagnetic
field activity reached active and G1 (Minor) geomagnetic storm
levels on 02 Jul due to the influence of a transient solar wind
feature believed to be the passage of the 27 Jun CME. Quiet and quiet
to unsettled conditions were observed throughout the remainder of
the period under a nominal solar wind regime.
Forecast
of Solar and Geomagnetic Activity 03 July - 29 July 2017
Solar
activity is expected to be at low levels throughout the outlook
period with a slight chance for isolated C-class flare activity.
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 16-19 Jul with moderate and normal levels
expected throughout the remainder of the period.
Geomagnetic
field activity is likely to reach G1 (Minor) geomagnetic storm
levels on 03 Jul due to the anticipated arrival of the 28 Jun CME.
G1 storm conditions are likely on 13 Jul with active levels likely
on 14 Jul due to the influence of a recurrent negative polarity
CH HSS. Generally quiet and quiet to unsettled conditions are
expected throughout the remainder of the outlook period as a nominal
solar wind regime prevails.
Product: 27-day Space Weather Outlook Table 27DO.txt :Issued: 2017 Jul 03 0114 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC web contact www.swpc.noaa.gov/wwire.html# # 27-day Space Weather Outlook Table # Issued 2017-07-03 # # UTC Radio Flux Planetary Largest # Date 10.7 cm A Index Kp Index 2017 Jul 03 70 19 5 2017 Jul 04 70 11 3 2017 Jul 05 70 7 2 2017 Jul 06 70 7 2 2017 Jul 07 71 5 2 2017 Jul 08 71 5 2 2017 Jul 09 71 5 2 2017 Jul 10 71 5 2 2017 Jul 11 71 5 2 2017 Jul 12 71 5 2 2017 Jul 13 71 23 5 2017 Jul 14 71 13 4 2017 Jul 15 71 11 3 2017 Jul 16 72 5 2 2017 Jul 17 72 5 2 2017 Jul 18 72 5 2 2017 Jul 19 72 5 2 2017 Jul 20 71 5 2 2017 Jul 21 71 11 3 2017 Jul 22 71 11 3 2017 Jul 23 71 5 2 2017 Jul 24 71 5 2 2017 Jul 25 71 5 2 2017 Jul 26 71 5 2 2017 Jul 27 71 5 2 2017 Jul 28 70 5 2 2017 Jul 29 70 5 2 (NOAA)