Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 7 · Portents
उत्पाताः
दिव्यान्तरी(रि)क्षभौमादिसमुत्पातार्दना इमाः ।दिव्यान्तरी(रि)क्षभौमं तु अद्भुतं त्रिविधं शृणु
In the full Agni Purana this is chapter 263, verse 11.
These rites put down the portents of the sky, the middle air, the earth and the rest. Hear of the strange sign, which is of three kinds: of the sky, of the air and of the earth.
Simple meaning: Strange signs are of three kinds: those of the sky, of the middle air, and of the earth.
अहर्क्षवैकृतं दिव्यमान्तरी(रि)क्षं निबोध मे ।
Heavenly signs disturb the day and stars. Falling meteors, burning skies and halos are signs of the middle air.
गन्धर्वनगरं चैव वृष्टिश्च विकृता च या ।
A mirage city, odd rain, strange events with living or fixed things, and earthquakes are portents.
सप्ताहाभ्यन्तरे वृष्टावद्भुतं निष्फलं भवेत् ।
Rain within seven days cancels the portent. Without a peace ritual it can bring fear within three years.