Product: Weekly Highlights and Forecasts
:Issued: 2017 Aug 14 0316 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact: http://www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 07 - 13 August 2017
Solar activity was very low. Region 2670 (S05, L=119, class/area Cso/160 on 02 Aug) continued it transit across the visible disk during the period as a simple Hsx/alpha spot group with no flaring
activity observed. No Earth-directed coronal mass ejections were observed.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached high levels from 07-11 Aug with a peak flux of 11,301 pfu observed at 07/1440 UTC. Electron flux values decreased to normal to moderate levels on 12-13 Aug due to the arrival of a negative polarity coronal hole high speed stream (CH HSS).
Geomagnetic field activity ranged from quiet to unsettled levels during the period. Solar wind speed was in decline at the beginning of the period from a waning positive polarity CH HSS. Solar wind
speeds declined from near 570 km/s early in the period to nominal levels by late on 08 Aug. Total field ranged from 2-6 nT through 10 Aug. On 11 Aug, total field and solar wind began to increase as a negative polarity CH HSS became geo effective. Total field increased to a maximum of 12 nT at 12/0135 UTC while solar wind increased to around 650 km/s by 13/1750 UTC. The geomagnetic field responded with quiet levels from 07-10 Aug and quiet to unsettled levels from 11-12
Aug. Geomagnetic activity decreased to quiet levels again on 13 Aug.
Forecast of Solar and Geomagnetic Activity 14 August - 09 September 2017
Solar activity is expected to be at very low levels. A chance for C-class flare activity is possible from 14-28 Aug as a new active region rotates across the visible disk.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels from 14-16, 18-30 Aug and again from 01-07 Sep due to CH HSS influence. Normal to moderate levels are
expected on 17, 31 Aug and again on 08-09 Sep. Geomagnetic field activity is expected to be reach unsettled to active levels on 14, 16-22, 30-31 Aug and from 01-02 and 08-09 Sep with G1 (Minor) geomagnetic storm levels are likely on 17-18 and 31Aug due to recurrent CH HSS activity.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2017 Aug 14 0316 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact: http://www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2017-08-14
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2017 Aug 14 68 8 3
2017 Aug 15 68 5 2
2017 Aug 16 68 10 3
2017 Aug 17 68 20 5
2017 Aug 18 68 25 5
2017 Aug 19 68 15 4
2017 Aug 20 68 12 4
2017 Aug 21 68 10 3
2017 Aug 22 68 8 3
2017 Aug 23 68 6 2
2017 Aug 24 68 5 2
2017 Aug 25 68 5 2
2017 Aug 26 68 5 2
2017 Aug 27 68 5 2
2017 Aug 28 68 5 2
2017 Aug 29 70 5 2
2017 Aug 30 72 12 4
2017 Aug 31 72 24 5
2017 Sep 01 72 18 4
2017 Sep 02 72 14 4
2017 Sep 03 72 5 2
2017 Sep 04 72 5 2
2017 Sep 05 72 5 2
2017 Sep 06 72 5 2
2017 Sep 07 72 5 2
2017 Sep 08 72 10 3
2017 Sep 09 70 8 3
(NOAA)
