Monday, April 01, 2019

Weekly Propagation Forecast Bulletins


Product: Weekly Highlights and Forecasts
:Issued: 2019 Apr 01 0125 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 25 - 31 March 2019

Solar activity was very low throughout the period. Region 2736 (N08, L=284, class/area-Eki/420 on 22 Mar) produced low level B-class flare activity after its rotation around the west limb. Region 2737
(N12, L=059, class/area-Bxo/10 on 31 Mar) emerged on the disk but was inactive. No Earth-directed coronal mass ejections (CME) were observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at moderate levels throughout the reporting period.

Geomagnetic field activity reached active levels on 31 March and  unsettled levels on 26-28 March due to influence from multiple, negative polarity coronal hole high-speed streams (CH HSS). Quiet
conditions were observed on 25, 29-30 March.

Forecast of Solar and Geomagnetic Activity 01 April - 27 April 2019

Solar activity is expected to be very low on 01-05 and 20-27 April. Low levels are expected between 06-19 April due to the return of Region 2736.

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 01-07 April with normal to moderate levels expected throughout the remainder of the outlook period.

Geomagnetic field activity is expected to reach active levels on 12 April due to influence from a recurrent, negative-polarity CH HSS. Quiet to unsettled levels are expected throughout the remainder of the outlook period.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2019 Apr 01 0125 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 2019-04-01
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2019 Apr 01      70          10          3
2019 Apr 02      70           8          3
2019 Apr 03      70          10          3
2019 Apr 04      70          10          3
2019 Apr 05      70           8          3
2019 Apr 06      70           8          3
2019 Apr 07      70          10          3
2019 Apr 08      70           5          2
2019 Apr 09      70           5          2
2019 Apr 10      70           5          2
2019 Apr 11      69           5          2
2019 Apr 12      69          15          4
2019 Apr 13      69           8          3
2019 Apr 14      70           5          2
2019 Apr 15      70           5          2
2019 Apr 16      70           5          2
2019 Apr 17      70           5          2
2019 Apr 18      70           5          2
2019 Apr 19      70           5          2
2019 Apr 20      70           5          2
2019 Apr 21      70           5          2
2019 Apr 22      70           5          2
2019 Apr 23      69           5          2
2019 Apr 24      68          10          3
2019 Apr 25      69           8          3
2019 Apr 26      69           5          2
2019 Apr 27      70           8          3
(NOAA)