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 sunspot regions were on the visible disk with two C-class flares produced. Due to the effect of the coronal hole high speed stream, the solar wind speed maintained at about 550 km/s. The geomagnetic field reached active levels for 6 hours. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm levels.
	Published:	2022-08-12 00:30 UTC
	Forecaster:	026/041

Within the next three days, solar activity is expected to be very low to low. The geomagnetic field is expected to be mainly quiet to unsettled due to the continous effect of the recurrent coronal hole high speed stream. The greater than 2 MeV electron flux at geosynchronous orbit is expected to maintain at minor storm levels.
	Published:	2022-08-12 00:30 UTC
	Forecaster:	026/041

During the last week, solar activity was very low to low. Nine active sunspot regions (AR3068, AR3071-AR3078) were on the visible disk with 9 C-class flares produced. The F10.7 index fluctuated between 108 sfu and 116 sfu. Due to the effect of coronal hole high speed stream, the solar wind speed reached the peak value of about 600 km/s on 7-9 Aug, and the geomagnetic field was at moderate storm levels for 3 hours, minor storm levels for 9 hours and active levels for 33 hours. Due to the effect of coronal hole high speed stream, the solar wind speed maintained at about 550 km/s on 11 Aug, and the geomagnetic field was at active levels for 6 hours. The geomagnetic field was 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 9-11 Aug.
	Published:	2022-08-12 06:30 UTC
	Forecaster:	041

Within the next week, solar activity is expected to be mainly low with a chance for M-class flares produced. The geomagnetic field is expected to reach isolated active or minor strom levels on 17-18 Aug due to the effect of coronal hole high speed stream. It will be quiet to unsettled on other time. The greater than 2 MeV electron flux at geosynchronous orbit is expected to maintain at minor storm levels on 12-15 Aug.
	Published:	2022-08-12 06:30 UTC
	Forecaster:	041

ALERTS


	No space environment alerts have been issued today.


	01:15 UTC 12 Aug 2022	00:15 UTC 11 Aug 2022	01:15 UTC 10 Aug 2022	07:00 UTC 08 Aug 2022	04:00 UTC 08 Aug 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:C2.1
	Peak Time:2022 Aug 12 10:20 UTC

	Updated:2022 Aug 12 11:15 UTC
	>>more data<<


	Current 5-min:3.110e-1 /cm².sr.s
	24-hr Max:4.770e-1 /cm².sr.s

	Updated:2022 Aug 12 11:10 UTC
	>>more data<<


	Speed:562.1 km/sec
	Density:4.8 protons/cm³

	Updated:2022 Aug 12 11:16 UTC
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	Current:Kp=2
	24-hr Max:Kp=4

	Updated:2022 Aug 12 09:00 UTC
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	Current 5-min:1.651e+3 /cm².sr.s
	Integral Flux:4.170e+8 /cm².sr.day

	Updated:2022 Aug 12 11:10 UTC
	>>more data<<


	10.7cm Flux:115 sfu

	Update:2022 Aug 11 UTC
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	SSN:58

	Update:2022 Aug 11 UTC
	>>more data<<