Matsya Purana 243.24

243.24

anukūlo mṛduḥ snigdhaḥ sukhasparśaḥ sukhāvahaḥ.
rukṣā rūkṣa svarābhadrāḥ kravyādāḥ parigacchatām .. 243.23 ..

On the other hand if a gentle and pleasing wind blows favourably it is very auspicious and so is the chorus of kites, etc, as well as the mild thunder of glossy clouds resembling elephants, and the sight of rainbow —23 24