Product: Weekly Highlights and Forecasts
:Issued: 2019 Sep 16 0139 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 09 - 15 September 2019
Solar activity was at very low levels. No spots were observed on the visible disk. No Earth-directed CMEs were observed in available coronagraph imagery.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was moderate to high levels were throughout the summary period due to influence from multiple CH HSSs. A maximum flux of 8,450 pfu was observed at 09/1745 UTC.
Geomagnetic field activity ranged from quiet to active levels. An isolated period of active was observed on 09 Sep in response to a positive polarity CH HSS increasing solar wind speeds to ~525 km/s. Isolated unsettled conditions, associated with further enhancements from multiple positive polarity CH HSSs, were observed on 12-15 Sep. Quiet conditions were observed over the remainder of the summary period.
Forecast of Solar and Geomagnetic Activity 16 September - 12 October 2019
Solar activity is expected to be at very low levels over 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 high levels on 16-19 Sep and 27 Sep - 12 Oct. Moderate levels are expected from 20-26 Sep. All enhancements in the electron flux are due to elevated wind speeds from multiple, recurrent, CH HSSs.
Geomagnetic field activity is expected to range from quiet to G2 (Moderate) storm levels. The G2 conditions are likely on 27-28 Sep; G1 (Minor) conditions are likely on 29 Sep; active conditions are likely on 30 Sep and 02 Oct; unsettled conditions are likely on 16-18 Sep, 23 Sep, 26 Sep, 01 Oct, 03 Oct, 06 Oct, 10 Oct and 12 Oct. All enhancements in geomagnetic active are in response to the anticipated influence of multiple, recurrent CH HSSs. The remainder of the outlook period is expected to be mostly quiet under nominal solar wind conditions.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2019 Sep 16 0139 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
# 27-day Space Weather Outlook Table
# Issued 2019-09-16
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2019 Sep 16 68 6 3
2019 Sep 17 68 8 3
2019 Sep 18 68 10 3
2019 Sep 19 68 5 2
2019 Sep 20 68 5 2
2019 Sep 21 68 5 2
2019 Sep 22 68 5 2
2019 Sep 23 69 8 3
2019 Sep 24 69 5 2
2019 Sep 25 69 5 2
2019 Sep 26 69 10 3
2019 Sep 27 69 35 6
2019 Sep 28 69 45 6
2019 Sep 29 69 20 5
2019 Sep 30 69 10 4
2019 Oct 01 69 8 3
2019 Oct 02 69 10 4
2019 Oct 03 69 8 3
2019 Oct 04 69 5 2
2019 Oct 05 69 5 2
2019 Oct 06 69 12 3
2019 Oct 07 70 5 2
2019 Oct 08 68 5 2
2019 Oct 09 68 5 2
2019 Oct 10 68 8 3
2019 Oct 11 68 5 2
2019 Oct 12 68 8 3
(NOAA)
