Bulletin 2017-04-21

on . Posted in Space Weather Bulletins

CURRENT CONDITIONS:  Solar activity is low with background X-ray flux at lower B-class levels. Solar wind speed is enhanced with speeds between 500 - 600 km/s. Local geomagnetic conditions are at quiet to unsettled levels. Local HF working frequencies are slightly elevated compared to monthly average predicted values.

OUTLOOK: Solar activity is expected to be low to moderate with background X-ray flux at B-class levels. A chance of C-class X-ray solar flares is possible from active region 2651. Solar wind speed is expected to slowly decrease as the high speed stream from coronal hole 80 (CH80) wanes. Geomagnetic conditions are forecast to be mostly quiet to unsettled levels throughout today and tomorrow (21 - 22 April). Enhanced solar wind speed is expected again early on 23 April due to coronal hole 82 (CH82). Geomagnetic conditions are then expected to be at active to minor storm levels with intervals of moderate storm.

For more information contact SANSA Space Science at spacesci- This email address is being protected from spambots. You need JavaScript enabled to view it. or call us on +27 28 312 1196

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