Atharvavedaparishishta 64.9

Thunderbolts, lightning, earthquakes, twilight thunderclaps, / halos, dust, smoke, red sunrises and sunsets;

The emergence from trees of food, sap, oil, honey, flowers, and fruits, / and an increase in the cries of cows and birds are auspicious in spring.

The discs of the sun and moon tawny, sullied by shooting stars and meteors; / non-fire burning, bursting, and stricken by smoke, dust, and wind;

Red, yellow, and tawny twilights, the sky agitated like an ocean, / and seeing the drying up of waters in rivers, one should declare auspicious in summer.

Rainbows, halos, lightning, the sprouting of dry wood, / sudden transformation of color, rumbling, and the cracking open of the earth;

The swelling of lakes, rivers, and wells, or their overflowing and rising, / and traversing rapid torrents: these do not bring danger during the rains.

The wondrous sounds of divine women's songs, Gandharvas, and celestial aerial cars, / and the sighting of planets, lunar mansions, and stars in the daytime sky;

The sound of singing and musical instruments on forest and mountain slopes, / the growth of crops, and the emergence of sap are recorded as not evil in autumn.

Cold winds, frostiness, the roaring of wild animals and birds, / the sight of creatures such as Rakṣases and Yakṣas, non-human speech;

Direction-elephants, forests, and mountains covered with blazing smoke and dust, / high clouds, moon, and sun are recorded as auspicious in early winter.