These clouds are called Morning Glory, which in translation from English - "The clouds of morning glory." Such clouds are found in Russia, the United States, some countries in Europe and elsewhere, but very rarely. And only in one place in Australia at Cape York, "the morning clouds of glory" are constantly appearing almost every spring.
"The clouds of morning glory" is unique in its kind. This atmospheric phenomenon was actively studied by scientists all over the world, but until now its nature is not entirely clear. And no one yet knows exactly how and why they occur. Although there are many hypotheses. Someone says it is sleeping tornado, someone - it's spiral arms cyclones, someone - they remind barrage gates, which sometimes occurs just before the storm ... But "clouds of morning glory" frequently appear in the clear days.