Product: Weekly Highlights and Forecasts
:Issued: 2017 Apr 17 0204 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 10 - 16 April 2017
Solar activity was at very low levels throughout the summary period. Region 2650 (N11, L=193, class/area=Cao/40 on 11 Apr 2017) produced numerous B-class flares throughout the period and was the only active region with sunspots this period. No Earth-directed CMEs were observed.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached moderate levels on 16 Apr and high levels on 10-15 Apr with a peak flux of 3,860 pfu observed at 1715 UTC on 10 Apr.
Geomagnetic field activity was at quiet levels on 10, 13, and 16 Apr. Quiet to unsettled levels were observed on 12 and 15 Apr, and quiet to active levels were observed on 11 and 14 Apr due to waning CH HSS influence and a solar sector boundary change.
Forecast of Solar and Geomagnetic Activity 17 April - 13 May 2017
Solar activity is expected to be very low with a chance for C-class flare activity throughout the outlook period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach very high levels on 29-30 Apr and high levels on 18-28 Apr and 01, 06-12 May. Moderate flux levels are expected throughout the remainder of the period.
Geomagnetic field activity is expected to reach G2 (Moderate) geomagnetic storm levels on 23 Apr and G1 (Minor) storm levels on 17, 24-27 Apr, and 01 May due to the influence of recurrent CH HSSs. Active conditions are expected on 19, 28 Apr and 05-06 May with generally quiet or quiet to unsettled levels likely throughout the remainder of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2017 Apr 17 0204 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 2017-04-17
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2017 Apr 17 83 20 5
2017 Apr 18 88 15 3
2017 Apr 19 90 18 4
2017 Apr 20 90 12 3
2017 Apr 21 90 8 3
2017 Apr 22 85 5 2
2017 Apr 23 85 40 6
2017 Apr 24 85 30 5
2017 Apr 25 85 20 5
2017 Apr 26 85 25 5
2017 Apr 27 85 30 5
2017 Apr 28 80 15 4
2017 Apr 29 80 10 3
2017 Apr 30 80 5 2
2017 May 01 80 20 5
2017 May 02 75 10 3
2017 May 03 75 10 3
2017 May 04 75 10 3
2017 May 05 75 15 4
2017 May 06 75 15 4
2017 May 07 75 5 2
2017 May 08 75 8 3
2017 May 09 75 5 2
2017 May 10 75 5 2
2017 May 11 75 5 2
2017 May 12 75 5 2
2017 May 13 75 5 2
(NOAA)
