Space Environment Prediction Center





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OVERVIEW & FORECAST

Daily Review
Day 1 To 3
Weekly Review
Weekly Forecast

During the past 24 hours, solar activity was low. Five active sunspot regions were on the visible disk with no M-class flare produced. The solar wind speed decreased to about 360 km/s. The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels.
	Published:	2026-10-08 00:30 UTC
	Forecaster:	039/022

Within the next three days, solar activity is expected to be mainly moderate with a chance for M-class flares. The geomagnetic field is expected to be at quiet to unsettled levels on 8 Oct and reach active to minor storm levels on 9-10 Oct due to the CME from 6 Oct. The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach minor storm levels on 8 Oct.
	Published:	2026-10-08 00:30 UTC
	Forecaster:	039/022

During the last week, solar activity remained at a low level. Eleven active sunspot regions (AR4533-AR4539, AR4542-AR4545) were on the visible disk without any M-class or above flares produced. No Solar Proton Event occurred. The F10.7 index decreased from 105 sfu to 92 sfu. Due to the effect of the recurrent coronal hole high speed stream, the solar wind speed reached a peak of about 550 km/s and the geomagnetic field was at active levels for 24 hours on 25-27 Sep. It was quiet to unsettled for the rest of time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 27-30 Sep.
	Published:	2026-10-02 06:30 UTC
	Forecaster:	026/010

Within the next week, solar activity is expected to be very low to low with chances for C-class flares. The geomagnetic field is expected to reach isolated minor storm levels on 2 Oct due to the arrival of a CME observed on 28 Sep, and reach minor storm levels on 3-4 Oct due to the effects of a coronal hole high speed stream. It is expected to be mainly at quiet to unsettled levels for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 6-8 Oct.
	Published:	2026-10-02 06:30 UTC
	Forecaster:	026/010

ALERTS


	Space environment alerts have been issued today.


	01:15 UTC 08 Oct 2026	00:15 UTC 07 Oct 2026	08:13 UTC 06 Oct 2026	06:51 UTC 06 Oct 2026	18:57 UTC 05 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:C8.0
	Peak Time:2026 Oct 07 13:17 UTC

	Updated:2026 Oct 08 11:06 UTC
	>>more data<<


	Current 5-min:2.873e-1 /cm².sr.s
	24-hr Max:5.791e-1 /cm².sr.s

	Updated:2026 Oct 08 11:00 UTC
	>>more data<<


	Speed:362.44 km/sec
	Density:8.3 protons/cm³

	Updated:2026 Oct 08 11:03 UTC
	>>more data<<


	Current:Kp=1
	24-hr Max:Kp=3

	Updated:2026 Oct 08 09:00 UTC
	>>more data<<


	Current 5-min:6.462e+3 /cm².sr.s
	Integral Flux:4.265e+8 /cm².sr.day

	Updated:2026 Oct 08 11:00 UTC
	>>more data<<


	10.7cm Flux:114 sfu

	Update:2026 Oct 07 UTC
	>>more data<<


	SSN:78

	Update:2026 Oct 07 UTC
	>>more data<<