Product: Weekly Highlights and Forecasts
:Issued: 2019 Sep 02 0207 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 26 August - 01 September 2019
Solar activity was at very low levels. New Region 2748 (N14, L=205, class/area Bxo/010 on 01 Sep) emerged on the disk, but remained quiet and stable. No Earth-directed CMEs were observed.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at moderate levels on 26 Aug, normal levels on 27-30 Aug, high levels on 31 Aug and very high levels on 01 Sep. Electron flux reached a maximum of 53,007 pfu at 01/2015 UTC.
Geomagnetic field activity ranged from quiet to unsettled levels on 26-27 Aug due to influence from a weak, negative polarity CH HSS. Quiet conditions persisted from late on 27 Aug through midday on 30 Aug. From midday on 30 Aug through 01 Sep, field activity increased to unsettled to G1 (minor) and G2 (moderate) levels as Earth came under the influence of a large, recurrent positive polarity CH HSS. 30 Aug saw a SSBC from a negative to a positive sector in advance of a CIR, all preceding the CH HSS. 31 Aug and 01 Sep observed active to G1 and G2 storm conditions. Wind speeds averaged about 750 km/s during this time frame with a peak of 835 km/s observed early on 01 September.
Forecast of Solar and Geomagnetic Activity 02 September - 28 September 2019
Solar activity is expected to be at very low levels.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at high to very high levels on 02-13 Sep and again on 27-28 Sep. Normal to moderate levels are expected on 14-26 Sep.
Geomagnetic field activity is expected to be at G1 (minor) storm 27-28 Sep due to positive polarity CH HSS influence. Unsettled levels are expected on 03, 07-08, 23, and 26 Sep due to recurrent CH
HSS effects.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2019 Sep 02 0207 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 2019-09-02
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2019 Sep 02 68 24 5
2019 Sep 03 68 8 3
2019 Sep 04 68 5 2
2019 Sep 05 68 5 2
2019 Sep 06 68 5 2
2019 Sep 07 68 8 3
2019 Sep 08 68 8 3
2019 Sep 09 68 5 2
2019 Sep 10 67 5 2
2019 Sep 11 67 5 2
2019 Sep 12 67 5 2
2019 Sep 13 67 5 2
2019 Sep 14 67 5 2
2019 Sep 15 67 5 2
2019 Sep 16 67 5 2
2019 Sep 17 67 5 2
2019 Sep 18 67 5 2
2019 Sep 19 67 5 2
2019 Sep 20 67 5 2
2019 Sep 21 67 5 2
2019 Sep 22 67 5 2
2019 Sep 23 68 8 3
2019 Sep 24 68 5 2
2019 Sep 25 68 5 2
2019 Sep 26 68 10 3
2019 Sep 27 68 35 6
2019 Sep 28 68 44 6
(NOAA)