Brihat Samhita
ताम्रा बलपतिमृत्युं पीतारुणसन्निभाश्च तद्व्यसनम् । हरिताः पशुसस्यबधं धूमसवर्णा गवां नाशम् ॥ ३०-१३ ॥
Copper-coloured (clouds) indicate the death of a powerful ruler; yellowish-red ones resemble calamity. Green-coloured ones bring destruction to cattle and crops, while smoke-coloured ones cause the ruin of cows.
english translation
tAmrA balapatimRtyuM pItAruNasannibhAzca tadvyasanam । haritAH pazusasyabadhaM dhUmasavarNA gavAM nAzam ॥ 30-13 ॥
hk transliteration by Sanscript