Product: Weekly Highlights and Forecasts
:Issued: 2024 Aug 26 0150 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact www.swpc.noaa.gov/content/subscription-services
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
19 - 25 August 2024
Solar activity was at R1 (Minor) to R2 (Moderate) levels on 19-24 Aug. A total of 18 R1 (Minor) flares were observed on 19-24 Aug from Regions 3785 (S15, L=107, class/area Dai/100 on 18 Aug), 3796 (S03, L=353, class/area Dki/380 on 23 Aug), 3800 (S27, L=331, class/area
Eai/160 on 25 Aug) and 3801 (N07, L=300, class/area Cso/140 on 23 Aug). A total of two R2 (Moderate) flares were observed from Regions 3796 and 3800. No Earth-directed CMEs were observed from any of these flares. Region 3794 (S17, L=040, class/area Dai/240 on 20 Aug)
produced a C5.9 flare at 23/0210 UTC. LASCO C2 imagery observed a CME off the W limb with a likely Earth-directed component. The periphery of the slow-moving ejecta is forecasted to brush by Earth late on 27 Aug to early on 28 Aug.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at low to moderate levels.
Geomagnetic field activity was at mostly quiet to isolated unsettled levels. The solar wind field on 19-25 Aug was at mostly nominal levels for the period. Bz reached a maximum high of 11 nT early on 23 Aug while the Bz component reached -10 nT during that same time.
Wind speeds ranged from a high of 435 km/s to a low of 300 km/s. The phi orientation was mostly positive through the period.
Forecast of Solar and Geomagnetic Activity 26 August - 21 September 2024
Solar activity is likely to be at moderate levels throughout the outlook period due to mulitple complex regions on the visible disk and regions anticipated to return.
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 during the outlook period.
Geomagnetic field activity is expected to be mostly quiet. Unsettled to active conditions are possible on 27-28 Aug due to potential CME effects from the 23 Aug CME. Unsettled conditions are possible on 17-18 Sep due to positive polarity coronal hole influence. Mostly
quiet conditions are forecast for 26 Aug, 29-31 Aug, 01-16 Sep and 19-21 Sep. The long-term forecast only contains recurrent solar wind features like CH HSSs and SSBCs. CMEs will be added as they occur.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2024 Aug 26 0150 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact www.swpc.noaa.gov/content/subscription-services
#
# 27-day Space Weather Outlook Table
# Issued 2024-08-26
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2024 Aug 26 235 5 2
2024 Aug 27 230 12 4
2024 Aug 28 235 12 4
2024 Aug 29 235 5 2
2024 Aug 30 245 5 2
2024 Aug 31 250 5 2
2024 Sep 01 250 5 2
2024 Sep 02 255 5 2
2024 Sep 03 260 5 2
2024 Sep 04 265 5 2
2024 Sep 05 270 5 2
2024 Sep 06 275 5 2
2024 Sep 07 275 5 2
2024 Sep 08 275 5 2
2024 Sep 09 280 5 2
2024 Sep 10 285 5 2
2024 Sep 11 280 5 2
2024 Sep 12 280 5 2
2024 Sep 13 275 5 2
2024 Sep 14 270 5 2
2024 Sep 15 265 5 2
2024 Sep 16 260 5 2
2024 Sep 17 255 8 3
2024 Sep 18 250 8 3
2024 Sep 19 245 5 2
2024 Sep 20 240 5 2
2024 Sep 21 240 5 2
(NOAA)
