Mundane Astro-Meteorological analysis of Rainfalls: How we can Calculate and cast Rainfall and pregnancy of clouds for upcoming Monsoons clue based on principals of early Ancients Ages.

How Rain Calculated and casted in Ancients Ages for Monsoons.

As per the early Ancient observations the four days commencing from the eigth day in the light half of the month of jyestha (i.e 4 days after the mid of the month of the may and june - from 15th may to 15th june) fall in may and june month are Known as Vayu Dharan-  The days when the winds movements seen and observed in the jyestha month freely from North-west to East direction  with full of  rich amount of moisture in it.  Those 4 days when wind is heavy moving near around moon movement in Swati to visakha nakashtra are vital clue for judging the nature of health of the Pregnancy of the rain-clouds for up-coming monsoon seasons. Here observation of wind direction and its richness with Apah, movement in these particular 4 days is most important.If there is no wind in those 4 days we can expect coming months will be much dry in nature as well as humidity will be more. 

If there is enough winds in those 4 days, should be like gentle , agreeable and if the Sky Should be covered by fine, bright clouds than there will be possibility of good rainfall in Monsoon else monsoon will be bit delayed and level of humidity will be more.

From 15th June  onward if you observe any possibility of rain drops or moisture contents in air than there should be enough rainfall in continues 4 days when Moon will Passes through Swati to Jyestha Nakashtra (Libra Sign to first Half of Vishkha).

If there is rainfall during Swati to Viskhka Nakshtra for full 4 days than we can say with surety that the monsoon is near to Shower full of insistent rainfall in Shravana to Karttika Month (August to November) else there will be possibility of drought like situation in rainy season.

This is an easiest way to time entry of monsoon via own sense of judgement and to get clear understanding on clue for rainfall during Sharavana and Karttika month. Only thing required is you need to keep observing the movement in sky, the direction and pregnancy of winds and clouds.

You can observe this fact in coming jyestha month (Commencing after 5th of june 2016, 8th bright light day will start after 12th of june and those 4 days will come around 15th of june @8:17:00 Pm  to 18th of june 2016 ) when moon will be in Libra sign in swati nakashtra in verge of moving to Vishakha with Mars (Fire) and Saturn (Air) already there in sign of Scorpio (sign of water) and at the same-time North Node (Rahu -suddenness and airy) will be in Kendra to both Visakha nakashtra. 

The main planet of rainfall - Jupiter will be in 11th from Saturn and Mars. So Keep an eye on those 4 days.

If there is an Indication of  rain in this nakashtras than you can expect monsoon is very soon to come.

Source, Reference and links

Brihat Samhita of Varahmihira by Ramkrishna Bhat
Astrology in Predicting Weather and Earthquakes by Dr B.V Raman

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