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Monday, May 18, 2020
Weekly Propagation Forecast Bulletins
Product: Weekly Highlights and Forecasts
:Issued: 2020 May 18 0322 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 11 - 17 May 2020
Solar activity was very low. The solar disk was spotless. Beginning on 15 May, a rise in x-ray flux background was observed as two plage regions emerged on the ENE and ESE limbs, possibly the return of old Regions 2762 (N23, L=338) and 2761 (S18, L=332). 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 normal to moderate levels with a peak flux of 203 pfu observed at 16/0220 UTC.
Geomagnetic field activity was mostly quiet with an isolated unsettled period observed late on 12 May. Solar wind parameters were at nominal levels with solar wind speed ranging from 282-354 km/s while total field was between 1-8 nT.
Forecast of Solar and Geomagnetic Activity 18 May - 13 June 2020
Solar activity is expected to continue at very low levels.
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 for the outlook period (18 May- 13 Jun).
Geomagnetic field activity is expected to reach unsettled levels on 19-20 May due to weak coronal hole high speed stream activity (CH HSS). Mostly quiet conditions are expected for the rest of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2020 May 18 0322 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 2020-05-18
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2020 May 18 70 5 3
2020 May 19 70 8 3
2020 May 20 70 8 3
2020 May 21 70 5 3
2020 May 22 70 5 2
2020 May 23 70 5 2
2020 May 24 70 5 2
2020 May 25 70 5 2
2020 May 26 70 5 2
2020 May 27 70 5 2
2020 May 28 70 5 2
2020 May 29 70 5 2
2020 May 30 70 5 2
2020 May 31 70 5 2
2020 Jun 01 70 5 2
2020 Jun 02 70 5 2
2020 Jun 03 70 5 2
2020 Jun 04 70 5 2
2020 Jun 05 70 5 2
2020 Jun 06 70 5 2
2020 Jun 07 70 5 2
2020 Jun 08 70 5 2
2020 Jun 09 70 5 2
2020 Jun 10 70 5 2
2020 Jun 11 70 5 2
2020 Jun 12 70 5 2
2020 Jun 13 70 5 2
(NOAA)