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Tuesday, May 29, 2018

Weekly Propagation Forecast Bulletins


Product: Weekly Highlights and Forecasts
:Issued: 2018 May 28 0238 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 21 - 27 May 2018

Solar activity reached low levels during the period due to an isolated C-class event, a C2 flare from Region 2712 (N13, L=172, class/area Csp/80 on 24 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 21-27 May.

Geomagnetic field activity was quiet to unsettled on 23 May due to influence from a positive polarity, coronal hole high-speed stream (CH HSS). Quiet conditions were observed throughout the remainder of the period.

Forecast of Solar and Geomagnetic Activity 28 May - 23 June 2018

Solar activity is expected to be very low throughout the period, with a slight chance for isolated C-class events on 28 May - 04 Jun and 10-23 Jun, due to flare potential from Regions 2711 (N06, L=288, class/area Cai/60 on 24 May) and 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 Jun with high levels expected on 02-04 Jun and 08-13 Jun. Moderate flux levels are
expected for the remainder of the period.

Geomagnetic field activity is expected to reach G1 (Minor) geomagnetic storm levels on 02 Jun with active levels on 01, and 03-04 Jun due to the influence of a recurrent, negative polarity CH HSS. Unsettled levels are expected on 28-29 May and 05-06, 13, 19 Jun. Quiet conditions are expected during the remainder of the outlook period.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2018 May 28 0238 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 2018-05-28
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2018 May 28      73           8          3
2018 May 29      72           8          3
2018 May 30      72           5          2
2018 May 31      72           5          2
2018 Jun 01      72          15          4
2018 Jun 02      72          28          5
2018 Jun 03      72          15          4
2018 Jun 04      70          12          4
2018 Jun 05      70          10          3
2018 Jun 06      70           8          3
2018 Jun 07      70           5          2
2018 Jun 08      70           5          2
2018 Jun 09      70           5          2
2018 Jun 10      72           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      70           5          2
2018 Jun 16      70           5          2
2018 Jun 17      70           5          2
2018 Jun 18      72           5          2
2018 Jun 19      72           8          3
2018 Jun 20      72           5          2
2018 Jun 21      72           5          2
2018 Jun 22      72           5          2
2018 Jun 23      72           5          2
(NOAA)