Head of the Facebook weather page ‘It-Temp Madwarna’ Samuel Cutajar gave MaltaDaily a brief explanation as to what caused the intense fog this morning all over the Maltese islands.
Cutajar explained how the fog that formed was the weather phenomenon that occurs when the forecasted day is a sunny one. The fog is also usually a prelude to a couple of very hot days, with the force of wind registered as absolutely calm at 0.
The cold air precipitates downwards due to being heavier than the hotter air, explained Cutajar. The fog is more intense in low altitude zones such as valleys and central regions.
Despite today’s fog being dense enough to cover even high altitude areas, the phenomenon usually decreases when one moves higher and closer to the sea.
As the day progresses and becomes hotter, the sun heats the air and thus disintegrates the fog. ‘Fog is nothing but a cloud which forms upside down’ he explained.
This occurs due to inversion, which is when cold air drops lower than warm air as opposed to normal.