Sky where the convectional rain is likely to fall (calm before the storm)

طبيعة-المناظر-الطبيعية / Sky where the convectional rain is likely to fall (calm before the storm)
علم-البيئة / Sky where the convectional rain is likely to fall (calm before the storm)
القوام-خلفيات / Sky where the convectional rain is likely to fall (calm before the storm)