Update 9:55 at night: horizontal winds decrease to 500 meters northwest of the Riyadh region administratively due to downward winds resulting from thunderclouds

Arab Weather - The Chronos system developed by Arab Weather shows a significant decrease in the extent of horizontal visibility in the northwest of the administrative region of Riyadh, where Al-Dawadmi Airport (at the moment of writing this report) recorded a horizontal vision that reached the limits of only 500 meters amid a semi-absence of horizontal visibility.

The weather forecast staff at the Arab Regional Weather Center earlier warned of sand storms and dust waves that may be caused by downward winds associated with thunderstorms, which are expected to continue during the next two days, God willing.

for more details:

Saudi Arabia | Warning of possible downward winds and dust waves in areas of thunderstorm activity during the next 48 hours.