Product: Weekly Highlights and Forecasts
:Issued: 2017 May 08 0049 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 01 - 07 May 2017
Solar activity was at very low levels with only B-class activity observed. On 04 May, an episode of large-scale magnetic reconnection was observed in the NE quadrant with a subsequent slow-moving CME off the NE limb, first observed in LASCO C2 imagery beginning at 04/1900 UTC. Analysis, and follow on WSA-Enlil model output of the CME, suggested an arrival at Earth early to midday on 10 May.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at high levels on 01-04 and 07 May and normal levels on 05-06 May.
Geomagnetic field activity was at predominately quiet levels throughout the period. Isolated unsettled to active periods were obsevered late on 04 May and early on 05 May due to weak effects from the 30 April CME. Isolated unsettled periods were observed on 07 May due to sustained southward Bz.
Forecast of Solar and Geomagnetic Activity 08 May - 03 June 2017
Solar activity is expected to be very low with a slight 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 likely to reach high levels on 08-09, 13-15, 17-20, and 24-31 May with very high levels likely on 21-23 May. Normal to moderate flux levels are expected for the remainder of the period.
Geomagnetic field activity is likely to reach G2 (Moderate) geomagnetic storm levels on 17 and 21 May with G1 (Minor) geomagnetic storm levels likely on 22 May due to the influence of mulitple, recurrent CH HSSs. Active conditions are likely on 10-11 May due to effects from the 04 May CME with additional active
conditions possible on 16, 18 and 20 May due to CH HSS influence. Quiet to unsettled levels are expected for the remainder of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2017 May 01 0108 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 2017-05-01
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2017 May 01 77 12 4
2017 May 02 75 8 3
2017 May 03 75 12 4
2017 May 04 73 12 4
2017 May 05 75 8 3
2017 May 06 75 8 3
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
2017 May 14 75 5 2
2017 May 15 80 8 3
2017 May 16 80 15 4
2017 May 17 80 30 5
2017 May 18 80 25 5
2017 May 19 85 45 6
2017 May 20 85 50 6
2017 May 21 85 15 4
2017 May 22 80 10 3
2017 May 23 80 8 3
2017 May 24 77 5 2
2017 May 25 77 5 2
2017 May 26 77 5 2
2017 May 27 77 5 2
(NOAA)
