Daily Forecast

DATE: 20 Jun 2018, composed at 08:47 SAST

CURRENT CONDITIONS: Solar activity is low with background X-ray flux at lower B-class levels. The solar wind speed is slowly declining with speeds from 510 km/s - 440 km/s as the influence of coronal hole 2 (CH2) wanes. Geomagnetic conditions are at quiet levels. Local HF working frequencies are near monthly average predicted values.

EVENTS: None.

OUTLOOK: Solar activity is expected to remain low with background X-ray flux at lower B-class levels. Background X-ray flux is expected to increase due to an increased number of active regions. There are currently three active regions visible on the solar disk with simple magnetic configurations and no significant flaring activity is expected. The solar wind speed is expected to gradually decrease to background levels as the influence of high speed stream from coronal hole 2 (CH2) wanes. Geomagnetic conditions are expected to be mostly quiet with intervals of unsettled levels.

SYSTEMS AFFECTED: None.



3-Day Predictions

Date2018-06-212018-06-222018-06-23
SSN211
Se (WCI)7111
T-Index30 to 105/1330 to 105/2130 to 105/-5
Activitylowlowlow
Qfe3.03.03.0
Ap5.05.05.0
Magnetic ConditionsQuietQuietQuiet
SA HF Commsfairfairfair
SW Fadeoutsunlikelyunlikelyunlikely
MUFunstableunstableunstable