Tuesday, April 30, 2019

Weekly Propagation Forecast Bulletins


Product: Weekly Highlights and Forecasts
:Issued: 2019 Apr 29 1721 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 22 - 28 April 2019 Solar activity was very low and throughout the reporting period. No spotted regions were observed on the solar disk. No Earth directed CMEs were observed in available coronagraph imagery.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at moderate levels on 22-23 Apr and decreased to normal levels for the remainder of the reporting period. Geomagnetic field activity ranged from quiet to unsettled. A solar sector boundary crossing was observed late on 23 Apr which caused several periods of unsettled early into 24 Apr. No other significant signatures were observed in the solar wind data. Quiet conditions were observed for the remainder of the reporting period.

Forecast of Solar and Geomagnetic Activity 29 April - 25 May 2019

Solar activity is expected to be at very low levels over the outlook period.  No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to range from normal to the high levels. High levels are expected on 02-12 May; moderate levels are expected on 29 April - 01 May and 13-23 May. The remainder of the outlook period is expected to be at normal levels.

Geomagnetic field activity is expected to range from quiet to active levels. Active levels are expected on 01-02 May and 07 May. Unsettled levels are expected to be on 30 Apr, 03 May, 05-06 May, May  8-10 and on 19 May. The remainder of the outlook period is expected to be at quiet levels. All of the enhancements in geomagnetic activity are due to the anticipation of multiple, recurrent CH HSSs.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2019 Apr 29 1721 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 2019-04-29
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2019 Apr 29      68           5          2
2019 Apr 30      68          10          3
2019 May 01      68          14          3
2019 May 02      70          12          3
2019 May 03      72           8          3
2019 May 04      72           5          2
2019 May 05      72          10          3
2019 May 06      72          12          3
2019 May 07      72          14          4
2019 May 08      72           8          3
2019 May 09      72           8          3
2019 May 10      72           8          3
2019 May 11      72           5          2
2019 May 12      72           5          2
2019 May 13      72           5          2
2019 May 14      72           5          2
2019 May 15      72           5          2
2019 May 16      72           5          2
2019 May 17      70           5          2
2019 May 18      68           5          2
2019 May 19      68           5          2
2019 May 20      68           8          3
2019 May 21      68           5          2
2019 May 22      68           5          2
2019 May 23      68           5          2
2019 May 24      68           5          2
2019 May 25      68           5          2
(NOAA)