Rough sea

Very rough sea in Xghajra on the southeast coast of Malta due to a Sirocco Gale blowing over the Maltese Islands as per seventh thumbnail. This gale was the result of a deep low pressure system that formed between Algeria and Tunisia due to the entrance of cold Atlantic airmass over the Western Sahara Desert which was then heated by the strong April sunshine. Once formed, this Spring-time African low pressure system (which was stonger and more northerly than usual) generated very strong winds around it and seperated the said cold airmass on its left from a recall of hot and dusty winds on its right as evident by the 850mb Temp on the fourth thumbnail. Upper-level moisture was entrenched within the low pressure and due to lack of upper-level instability, cirrostratus nebulosus clouds were the result confirmed by a halo in the second thumbnail photo. The sky’s grey colour was not due to heavy cloud cover but rather the combination of a desert sand haze and high level clouds making the atmosphere hazy as per third and fifth thumbnails depicting the weather sounding and the dust map respectively. The first thumbnail is another photo of the very rough sea on the day. Unseasonably cold temperatures were expirienced well inland over North Africa with MAX Temp in Biskra of 17C and thunderstorms with rain.

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