Bulletin: Current Conditions

13 September 2024

Solar activity was high with background X-ray flux at upper C-class levels. Several C and M-class flares were observed during the past 24 hours. The largest flare observed was an X1.28 at 12/09:46 UT from a new unnumbered region. There are seven sunspot regions on the visible solar disk showing simple to complex magnetic configurations. The solar wind speed reached strong levels with speed ranging between 500-610 km/s due to the continuous CME impacts. There are several filaments and prominences on the visible solar disk that show slight movement and will be monitored for any potential lift-offs. No confirmed Earth-directed CMEs were observed in the available coronagraph imagery during the past 24 hours. Geomagnetic conditions were at minor to moderate levels (Kp 5-6) and reached strong (Kp=7) isolated intervals. Local HF working frequencies are near monthly predicted values.

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Daily Conditions

	Date and Time (UT)	foF2 (MHz)	hmF2 (km)	T index	Ap
Grahamstown	2024-09-13 17:00	7.800	307.427	93
Hermanus	2024-09-13 17:15	8.750	310.326	100
Planetary Ap	2024-09-13 16:34				37

Predicted SANSA monthly T-Index for September 2024: 115

Current Conditions

2024-09-13 17:22
Solar wind speed:	452.1 km/s
IMF Bz:	-4.4 nT
Hermanus T-index:	100
Hermanus hmF2:	310.326 km
Hermanus foF2:	8.750 MHz
Dcx Index:	-67.6 nT

Space Weather Bulletin

13 September 2024
Solar activity was high with background X-ray flux at upper C-class levels. Several C and M-class flares were observed during the past 24 hours. The largest flare observed was an X1.28 at 12/09:46 UT from a new unnumbered region. There are seven sunspot regions on the visible solar disk showing simple to complex magnetic configurations. The solar wind speed reached strong levels with speed ranging between 500-610 km/s due to the continuous CME impacts. There are several filaments and prominences on the visible solar disk that show slight movement and will be monitored for any potential lift-offs. No confirmed Earth-directed CMEs were observed in the available coronagraph imagery during the past 24 hours. Geomagnetic conditions were at minor to moderate levels (Kp 5-6) and reached strong (Kp=7) isolated intervals. Local HF working frequencies are near monthly predicted values.