Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 11 · Rain, Kurma Chakra, Utpata
वृष्टिः कूर्मचक्रम् उत्पाताश्च
भरणी सर्वसस्या च सर्वनाशाय चाश्विनी ।गुरोः सप्तमराशिस्थः प्रत्यग्गो भृगुजो यदा ॥ ७३३ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 733.
Bharani gives every crop. Ashvini can bring harm to all crops. Venus may stand in the 7th sign from Jupiter, in the west.
Simple meaning: Bharani is good for all crops. Ashvini can harm them. Venus 7th from Jupiter, in the west, comes next.
तदातिवर्षणं भूरि प्रावृट्काले बलोज्झिते ।
Venus in the 7th from Jupiter brings very heavy rain. A halo around the Moon is the next sign.
विद्युत्प्रपूर्णमंडूकास्वनावृष्टिर्भवेत्तदा ।
A Moon halo with lightning and croaking frogs brings rain. Clouds leaning west come next.
पतंति दक्षिणस्था येभवेद्वृष्टिस्तदाचिरात् ।
Clouds in the south coming down bring quick rain. Cats scratching the ground is a rain sign.