Daily Forecast

DATE: 13 Dec 2018, composed at 08:28 SAST

CURRENT CONDITIONS: Solar activity is low with background X-ray flux below B-class levels. The solar wind speed is at background levels with speeds between 390 km/s - 400 km/s. Geomagnetic conditions are quiet. Local HF working frequencies are slightly elevated compared to monthly average predicted values.

EVENTS: None.

OUTLOOK: Solar activity is expected to remain low with background X-ray flux below B-class levels. There are no sunspot regions visible on the solar disk and no flaring activity is expected. The solar wind speed is expected to continue declining for the rest of today. A high speed stream from negative coronal hole 58 (CH58) is expected to enhance the solar wind speed by 15 - 16 December. Geomagnetic conditions are expected to be mainly quiet.

SYSTEMS AFFECTED: None.



3-Day Predictions

Date2018-12-142018-12-152018-12-16
SSN111
Se (WCI)221
T-Index30 to 105/430 to 105/430 to 105/-5
Activitylowlowlow
Qfe3.43.43.4
Ap5.05.05.0
Magnetic ConditionsQuietQuietQuiet
SA HF Commsfairfairfair
SW Fadeoutsunlikelyunlikelyunlikely
MUFunstableunstableunstable