Monday, March 19, 2018

Weekly Propagation Forecast Bulletins




Product: Weekly Highlights and Forecasts
:Issued: 2018 Mar 19 0555 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 12 - 18 March 2018
Solar activity was very low throughout the period. The only numbered regions were 2701 (S12, L=99, class/area=Axx/10 on 15 March) and 2702 (N22, L=109, class/area=Bxo/5 on 17 March). Neither region managed any flare activity. No Earth-directed CMEs were observed during the period.  No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at high levels on 16-18 March. Normal levels were observed on 12-15 March. Geomagnetic field activity reached G2-Moderate storm levels on 18 March and active levels on 14-17 March due to the influence of a negative polarity CH HSS. Quiet to unsettled levels were observed throughout the rest of the week.

Forecast of Solar and Geomagnetic Activity 19 March - 14 April 2018
Solar activity is expected to be at very low levels throughout the outlook period.  No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be high levels on 19-20, 22-26 March, and 12-14 April. Normal to moderate levels are expected for the rest of the period.
Geomagnetic field activity is likely to be at G1 (Minor) storm levels on 19 March and 12 April with active periods likely on 20-24 March and 11, 13-14 April, due to effects of multiple recurrent CH
HSSs. Quiet to unsettled levels are expected for the remainder of the outlook period.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2018 Mar 19 0555 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 2018-03-19
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2018 Mar 19      69          21          6
2018 Mar 20      68          12          3
2018 Mar 21      68          18          4
2018 Mar 22      68          18          4
2018 Mar 23      68          18          4
2018 Mar 24      68          15          4
2018 Mar 25      68           8          3
2018 Mar 26      68           5          2
2018 Mar 27      68           5          2
2018 Mar 28      68           5          2
2018 Mar 29      68           5          2
2018 Mar 30      68           8          3
2018 Mar 31      68           8          3
2018 Apr 01      68           5          2
2018 Apr 02      68           5          2
2018 Apr 03      69           5          2
2018 Apr 04      69           5          2
2018 Apr 05      70           5          2
2018 Apr 06      70           5          2
2018 Apr 07      70           5          2
2018 Apr 08      70           5          2
2018 Apr 09      70           5          2
2018 Apr 10      70           8          3
2018 Apr 11      70          15          4
2018 Apr 12      70          20          5
2018 Apr 13      70          15          4
2018 Apr 14      70          15          4
(NOAA)