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 high. Seven sunspot regions were on the visible disk and with six M-class flares and several C-class flares produced. Due to the effect of coronal hole high speed stream and CME, the solar wind speed maintained at about 500 km/s. The geomagnetic field was at minor storm levels for 3 hours, active levels for 9 hours, and quiet to unsettled for the rest of time.
	Published:	2022-10-04 00:30 UTC
	Forecaster:	012/042

Within the next three days, solar activity is expected to be moderate with a chance for X-Class flares. Due to the continuous effect of several CMEs, the geomagnetic field is expected to reach storm levels on 4-5 Oct, and be quiet to unsetted for the rest of time.
	Published:	2022-10-04 00:30 UTC
	Forecaster:	012/042

During the last week, solar activity was moderate on 23 Sep, and low in other periods of time. Seven active sunspot regions (AR3102, AR3105, AR3107-AR3111) were on the visible disk with one M-class and several C-class flares produced. No solar proton events occurred. The F10.7 index ranged between 135 sfu and 146 sfu. The geomagnetic field was active levels for 3 hours on 24 Sep. Due to the effects of the coronal hole high speed stream and CMEs, the solar wind speed reached a peak value of about 580 km/s on 27 Sep, and the geomagnetic field was at moderate storm levels for 3 hours and active levels for 6 hours. The geomagnetic field was quiet to unsettled for the rest of time.
	Published:	2022-09-30 06:30 UTC
	Forecaster:	029/040

Within the next week, solar activity is expected to be mainly low to moderate levels. The geomagnetic field is expected to reach storm levels on 30 Sep-2 Oct due to the effects of the recurrent coronal hole high speed stream, and be mainly quiet to unsettled for the rest of time.
	Published:	2022-09-30 06:30 UTC
	Forecaster:	029/040

ALERTS


	Space environment alerts have been issued today.


	21:30 UTC 03 Oct 2022	19:58 UTC 03 Oct 2022	19:00 UTC 03 Oct 2022	15:39 UTC 03 Oct 2022	11:18 UTC 03 Oct 2022

LATEST DATA



		The active region magnetogram is created from the raw full-disk longitudinal magnetogram data observed at Huairou Solar Observatory Station of Beijing in China.				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.

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		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.				The Ionosphere GPS observation network , monitoring the ionospheric scintillation and GPS-TEC with time resolutions of 1 minute and 30 seconds, is located at Fuzhou, Xiamen, Guangzhou, Nanning and Hainan.

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	24-hr Max:M4.2
	Peak Time:2022 Oct 03 10:11 UTC

	Updated:2022 Oct 04 02:47 UTC
	>>more data<<


	Current 5-min:2.763e-1 /cm².sr.s
	24-hr Max:9.790e-1 /cm².sr.s

	Updated:2022 Oct 04 02:40 UTC
	>>more data<<


	Speed:572.8 km/sec
	Density:11.4 protons/cm³

	Updated:2022 Oct 04 02:54 UTC
	>>more data<<


	Current:Kp=3
	24-hr Max:Kp=5

	Updated:2022 Oct 04 00:00 UTC
	>>more data<<


	Current 5-min:1.483e+2 /cm².sr.s
	Integral Flux:7.059e+6 /cm².sr.day

	Updated:2022 Oct 04 02:40 UTC
	>>more data<<


	10.7cm Flux:155 sfu

	Update:2022 Oct 03 UTC
	>>more data<<


	SSN:102

	Update:2022 Oct 02 UTC
	>>more data<<