(last updated 08 Jan 2017 00:45 UT)
SUBJ: SWS HF RADIO COMMUNICATIONS WARNING 17/02 ISSUED AT 0031UT/06 JANUARY 2017 BY THE AUSTRALIAN SPACE FORECAST CENTRE. The Earth's ionosphere is currently under the influence of disturbed solar winds associated with a recurrent coronal hole.
The HF depressions are currently been experienced in the high latitude regions mostly in the Southern hemisphere. Over the next two days (6-7 January), the high latitude depressions are expected to extend into the low latitude regions. This effect is expected to be more prominent in the Southern hemisphere. HF users are advised to use lower than the monthly predicted frequencies for the next three days (6-8 January).
DEGRADED HF PROPAGATION CONDITIONS EXPECTED FROM 06-08 JANUARY 2017 IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND