Product: Weekly Highlights and Forecasts
:Issued: 2024 Jun 24 0141 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 17 - 23 June 2024
Solar activity ranged from low to high levels. Region 3723 (S18, L=011, class/area=Dao/150 on 23 Jun) produced the strongest event of the period, an impulsive M9.3/1b flare (R2-Moderate) at 23/1301 UTC. Region 3719 (S15, L=067, class/area=Dao/230 on 23 Jun) also produced
an R2 event with an impulsive M5.7/1b flare at 20/2316 UTC. 12 other low-level M-class (R1-Minor) events were observed from various regions throughout the week. No Earth-directed CMEs were identified with any of the flare events. Other activity included a Type-II
radio sweep on 17 Jun and an additional Type-II radio sweep on 22 Jun. Both radio sweeps were associated with eruptive activity that was not on the Sun-Earth line.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels throughout the summary period.
No significant geomagnetic field activity was observed during the summary period. Quiet to unsettled levels throughout week. Solar wind conditions were influenced by the onset of a postive polarity CH HSS which increased wind speeds to peak near 600 km/s on 18 Jun.
Wind speeds then steadily decreased to a low of 300 km/s late on 22 Jun. A weak transient feature was observed on 23 Jun with a southward Bz of -10 nT observed, but combined with the slow wind speeds, only unsettled levels were observed.
Forecast of Solar and Geomagnetic Activity 24 June - 20 July 2024
Solar activity is likely to reach moderate on 24-25 Jun due primarily to the flare potential from active regions near the west limb. A decrease to low levels, with a slight chance for M-class activity (R1-R2/Minor-Moderate), is likely from 25 Jun - 20 July.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at low to moderate levels throughout the outlook
period.
Geomagnetic field activity is expected to reach unsettled levels on 24 Jun, 14-16 Jul, and 20 Jul due to anticipated influence from multiple, recurrent, CH HSSs. The remainder of the outlook period is likely to be at mostly quiet levels.
:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2024 Jun 24 0141 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 2024-06-24
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2024 Jun 24 190 8 3
2024 Jun 25 190 5 2
2024 Jun 26 190 5 2
2024 Jun 27 190 5 2
2024 Jun 28 190 5 2
2024 Jun 29 190 5 2
2024 Jun 30 190 5 2
2024 Jul 01 190 5 2
2024 Jul 02 195 5 2
2024 Jul 03 190 5 2
2024 Jul 04 185 5 2
2024 Jul 05 190 5 2
2024 Jul 06 180 5 2
2024 Jul 07 180 5 2
2024 Jul 08 165 5 2
2024 Jul 09 165 5 2
2024 Jul 10 180 5 2
2024 Jul 11 170 5 2
2024 Jul 12 170 5 2
2024 Jul 13 170 5 2
2024 Jul 14 180 10 3
2024 Jul 15 190 10 3
2024 Jul 16 195 8 3
2024 Jul 17 200 5 2
2024 Jul 18 200 5 2
2024 Jul 19 195 5 2
2024 Jul 20 195 8 3
(NOAA)
