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Monday, January 21, 2019

Weekly Propagation Forecast Bulletins


Product: Weekly Highlights and Forecasts
:Issued: 2019 Jan 21 0128 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 14 - 20 January 2019

Solar activity was at very low levels under a spotless disk. No Earth-directed CMEs were observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at moderate levels on 14-15 Jan and normal levels on 16-20 Jan. A peak flux of 321 pfu was observed at 14/0005 UTC.

Geomagnetic field activity was at predominately quiet levels with isolated unsettled intervals early on 15 Jan, late on 16 Jan, early on 17 Jan and late on 19 Jan. The isolated unsettled periods were due to influence from a weak, negative polarity CH HSS. During the period, solar wind parameters were generally at nominal levels.

However, a slight enhancement was observed midday 17 Jan through early 18 Jan due to negative polarity CH HSS influence. During this time frame, total field peaked at 10 nT, the Bz component reached a maximum southward extent of -8 nT and wind speeds peaked at about 515 km/s.

Forecast of Solar and Geomagnetic Activity 21 January - 16 February 2019

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 at normal to moderate levels on 21-25 Jan, 28 Jan-01 Feb and 07-16 Feb. Moderate to high levels are expected on 26-27 Jan
and again on 02-06 Feb due to recurrent CH HSS influence.

Geomagnetic field activity is expected to be at unsettled to active levels on 23-26 Jan, with G1 (Minor) storms conditions likely on 24 Jan, all due to influence from a recurrent, positive polarity CH
HSS. Unsettled to active levels are again possible on 31 Jan-03 Feb due to influence from a recurrent, negative polarity CH HSS. The remainder of the outlook period is expected to be at predominately
quiet levels.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2019 Jan 21 0128 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 2019-01-21
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2019 Jan 21      71           5          2
2019 Jan 22      71           5          2
2019 Jan 23      71          18          4
2019 Jan 24      71          25          5
2019 Jan 25      71          18          4
2019 Jan 26      71          10          3
2019 Jan 27      71           5          2
2019 Jan 28      71           5          2
2019 Jan 29      71           5          2
2019 Jan 30      71           5          2
2019 Jan 31      71          10          3
2019 Feb 01      71          15          4
2019 Feb 02      70          12          4
2019 Feb 03      70           8          3
2019 Feb 04      70           5          2
2019 Feb 05      69           5          2
2019 Feb 06      69           5          2
2019 Feb 07      69           5          2
2019 Feb 08      69           5          2
2019 Feb 09      69           5          2
2019 Feb 10      69           5          2
2019 Feb 11      69           5          2
2019 Feb 12      69           5          2
2019 Feb 13      69           5          2
2019 Feb 14      69           5          2
2019 Feb 15      69           5          2
2019 Feb 16      69           5          2
(NOAA)