Product: Weekly Highlights and Forecasts
:Issued: 2025 May 05 0116 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 28 April - 04 May 2025
Solar activity reached moderate levels on 29 and 30 Apr due to M-Class flare activity. Region 4078 (N16, L=009, class/area=Cro/20 on 29 Apr) produced an M1.3/1N flare at 29/1002 UTC and an M1.6/1N flare at 29/1057 UTC. Region 4079 (N07, L=242, class/area=Ekc/1210 on 02 May) produced an M1.7 flare at 29/0513 UTC and an M2.0 flare at 30/0751 UTC, the largest of the period. Low levels were obsereved throughout the remainder of the period. No Earth-directed CME resulted from this week's flare activity.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at moderate levels on 28 Apr - 01 May, and reached high levels on 02-04 May.
Geomagnetic field activity was at quiet to unsettled levels on 28-29 Apr. Activity increased to active levels on 30 Apr, and reached G1 (Minor) levels on 01-05 May due to negative polarity coronal hole influence.
Forecast of Solar and Geomagnetic Activity 05 May - 31 May 2025
Solar activity is expected to be predominantly low through the outlook period, with a varying chance for M-class flare activity.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is likely to reach high levels from 05-12 May and 29-31 May. Normal to moderate levels are expected from 13-28 May.
Geomagnetic field activity is likely to reach G1 (Minor) storm levels on 18 May and 29-31 May due to negative polarity coronal hole influence. Periods of active conditions are likely on 05-06 May, 09-11 May, 16-17 May, 19-21 May, and 27 May in response to CH HSS incluences. Quiet to unsettled conditions are expected to prevail throughout the remainder of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2025 May 05 0116 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 2025-05-05
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2025 May 05 160 18 5
2025 May 06 160 12 4
2025 May 07 160 6 2
2025 May 08 160 6 2
2025 May 09 165 15 4
2025 May 10 165 12 4
2025 May 11 165 10 3
2025 May 12 160 5 2
2025 May 13 155 5 2
2025 May 14 155 5 2
2025 May 15 155 5 2
2025 May 16 155 12 4
2025 May 17 155 12 4
2025 May 18 155 25 5
2025 May 19 155 10 3
2025 May 20 155 8 3
2025 May 21 160 8 3
2025 May 22 160 6 2
2025 May 23 160 6 2
2025 May 24 155 6 2
2025 May 25 155 5 2
2025 May 26 150 5 2
2025 May 27 150 8 3
2025 May 28 150 25 5
2025 May 29 150 30 5
2025 May 30 150 20 5
2025 May 31 155 20 5
(NOAA)
