Brihat Samhita
अरुणकिरणानुरूपे दुर्भिक्षावृष्टयो विहगपीडा । आधूम्रे क्षेमसुभिक्षं आदिशेत्मन्दवृष्टिं च ॥ ५-५५ ॥
If the disc should be of the colour of the sky at dawn of day, there will be famine and drought and birds will suffer. If red-black, there will be prosperity and plenty in the land but slight rain.
english translation
aruNakiraNAnurUpe durbhikSAvRSTayo vihagapIDA । AdhUmre kSemasubhikSaM AdizetmandavRSTiM ca ॥ 5-55 ॥
hk transliteration by Sanscript