Citizens and residents are advised to remain vigilant for instable weather in the next few hours, Director of the Meteorological Department Mohammad Karam warned Saturday. In a statement to KUNA, Karam said that the weather will be categorized as unstable starting from the early hours of Sunday, with wind speed of up to 60 kilometers per hour. The official explained that such winds will be accompanied with clouds and possibility of rains with a chance of thunderstorm and dust, making visibility gets as low as 500 meters horizontally, in some areas, noting that the instable weather will continue this situation throughout the day. He added that the wind will shift northwest causing dust on Sunday night and will continue through the day on Monday.