Brihat Samhita
धूमऽकुलीकृतऽशे नभसि नभस्वान्रजः क्षिपन्भौमम् । विरुजन्द्रुमांश्च विचरति रविरपटुकरावभासी च ॥ ३२-०९ ॥
These symptoms are- the sky will be filled with dust and smoke, violent winds will shake the trees and the rays of the sun will appear dim.
english translation
dhUma'kulIkRta'ze nabhasi nabhasvAnrajaH kSipanbhaumam । virujandrumAMzca vicarati ravirapaTukarAvabhAsI ca ॥ 32-09 ॥
hk transliteration by Sanscript