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OVERVIEW & FORECAST

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Day 1 To 3
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Weekly Forecast

During the past 24 hours, solar activity was low. Five active sunspot regions were on the visible disk without any M-class and above flares produced. The solar wind speed decreased to about 430 km/s. The geomagnetic field was quiet to unsettled.
	Published:	2026-10-16 00:30 UTC
	Forecaster:	025/042

Within the next three days, solar activity is expected to be low to moderate with chance for M-class flares. The geomagnetic field is expected to be mainly at quiet to unsettled levels.
	Published:	2026-10-16 00:30 UTC
	Forecaster:	025/042

During the last week, solar activity was high on 10 Oct, moderate on 9 Oct, low for the rest of time. Eleven active sunspot regions (AR4545, AR4548-AR4549, AR4551-AR4558) were on the visible disk with 3 M-class flares produced. No Solar Proton Event occurred. The F10.7 index fluctuated between 121 sfu and 136 sfu. Due to the co-effects of several CMEs on 7-8 and the recurrent coronal hole high speed stream, the solar wind speed reached a peak of about 890 km/s and the geomagnetic field reached major strom levels for 6 hours, minor storm levels for 3 hours and active levels for 9 hours on 9-11 Oct. It was quiet to unsettled for the rest of time.
	Published:	2026-10-16 06:30 UTC
	Forecaster:	042/025

Within the next week, solar activity is expected to be low to moderate with chances for M-class flares. The geomagnetic field is expected to reach active or minor storm levels on 22-23 Oct due to the effect of the recurrent coronal hole high speed stream.
	Published:	2026-10-16 06:30 UTC
	Forecaster:	042/025

ALERTS


	Space environment alerts have been issued today.


	15:45 UTC 16 Oct 2026	21:00 UTC 10 Oct 2026	19:00 UTC 10 Oct 2026	16:00 UTC 10 Oct 2026	15:20 UTC 10 Oct 2026

LATEST DATA



		The magnetic map of the activity area is generated based on the full day longitudinal magnetic field data of the Huairou Solar Observatory in Beijing.				This full-disk Hα image of sun is observed with the 20cm Full-Disc Hα Telescope located at Huairou Solar Observatory Station of Beijing in China.



		Observatories of cosmic ray in SEPC include Beijing station monitoring Neutron intensity variations and Guangzhou station monitoring the intensity variations of East, West, South, North and Vertical components of muon.				This model is an improved geomagnetic K-index current reporting model based on the evaluation of Takahashi, a commonly used international Kp index current reporting model, and its application to Chinese geomagnetic stations.

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	24-hr Max:M1.3
	Peak Time:2026 Oct 16 15:42 UTC

	Updated:2026 Oct 16 23:15 UTC
	>>more data<<


	Current 5-min:1.989e-1 /cm².sr.s
	24-hr Max:3.958e-1 /cm².sr.s

	Updated:2026 Oct 16 23:10 UTC
	>>more data<<


	Speed:469.8 km/sec
	Density:4.8 protons/cm³

	Updated:2026 Oct 16 23:13 UTC
	>>more data<<


	Current:Kp=4
	24-hr Max:Kp=4

	Updated:2026 Oct 16 21:00 UTC
	>>more data<<


	Current 5-min:2.235e+2 /cm².sr.s
	Integral Flux:1.751e+7 /cm².sr.day

	Updated:2026 Oct 16 23:10 UTC
	>>more data<<


	10.7cm Flux:131 sfu

	Update:2026 Oct 16 UTC
	>>more data<<


	SSN:104

	Update:2026 Oct 15 UTC
	>>more data<<