Melbourne residents wake to thick fog on Thursday morning, described as the densest in a week of misty conditions. Multiple outlets report the fog is present early in the day and is creating a murky, chilly start to the morning. The articles agree that visibility remains affected and that the fog is expected to continue for several hours. The overall forecast shared across the reports indicates the fog will linger until about midday, after which conditions are expected to improve. All sources frame the event as part of a run of foggy mornings, noting that this instance is the thickest so far. The reporting is consistent in its description of the conditions—thick, slow-moving fog affecting Melbourne in the morning—and in the stated timing for when it should ease. No additional details about causes, specific transport impacts, or emergency measures are included in the provided summaries.