Pages

Monday, June 04, 2018

Weekly Propagation Forecast Bulletin


Product: Weekly Highlights and Forecasts
:Issued: 2018 Jun 04 0252 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 28 May - 03 June 2018

Solar activity reached low levels during the period due to an isolated C-class event, a C2/Sf flare from Region 2712 (N15, L=176, class/area Csi/80 on 28 May). 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 28-31 May and high levels on 01-03 June due to influence from a negative polarity coronal hole high-speed stream (CH HSS). The peak flux observed was 28,659 pfu at 02/1900 UTC.

Geomagnetic field activity reached G1 (Minor) storm levels on 01 June and active levels on 31 May and 02 June due to influence from a negative polarity CH HSS. Quiet to unsettled conditions were
observed throughout the remainder of the week.

Forecast of Solar and Geomagnetic Activity 04 June - 30 June 2018

Solar activity is expected to be very low throughout the period, with a slight chance for isolated C-class events on 04-05 and 18-30 June, due to flare potential from Region 2712.

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 05-07 June with high levels expected on 04, 08-13, and 28-30 June. Moderate flux levels are
expected for the remainder of the outlook period.

Geomagnetic field activity is expected to reach G1 (Minor) geomagnetic storm levels on 28 June, with active levels on 27 and 2  June, due to influence from a recurrent, negative polarity CH HSS.
Unsettled levels are expected on 04-05, 13, 19, and 30 June. Quiet conditions are expected during the remainder of the outlook period.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2018 Jun 04 0252 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 2018-06-04
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2018 Jun 04      73          10          3
2018 Jun 05      72           8          3
2018 Jun 06      70           5          2
2018 Jun 07      70           5          2
2018 Jun 08      70           5          2
2018 Jun 09      70           5          2
2018 Jun 10      70           5          2
2018 Jun 11      72           5          2
2018 Jun 12      72           5          2
2018 Jun 13      72           8          3
2018 Jun 14      72           5          2
2018 Jun 15      72           5          2
2018 Jun 16      72           5          2
2018 Jun 17      72           5          2
2018 Jun 18      74           5          2
2018 Jun 19      74           8          3
2018 Jun 20      74           5          2
2018 Jun 21      74           5          2
2018 Jun 22      74           5          2
2018 Jun 23      74           5          2
2018 Jun 24      72           5          2
2018 Jun 25      72           5          2
2018 Jun 26      72           5          2
2018 Jun 27      72          15          4
2018 Jun 28      72          28          5
2018 Jun 29      72          18          4
2018 Jun 30      72          10          3
(NOAA)