Aridra Pravesha

29 Jun
                                                                Om Gurubyo Namaha
                                                     Sarve Janaha Sukhinobhavanthu
                                    Aridra Pravesha – Rainfall Prediction
The ancient Vedic method of weather forecast is broadly done by analyzing following data:
1. Sun’s ingress into a Rashi / Nakshatra at any point of time, like month, day etc.
2. Study of Nadi / Nakshatra Chakras.
3. Particularly the Monsoon / rainfall prediction is done by analyses of a chart erected for the time when the Sun enters “Aridra’ Nakshatra for the prime city, mostly the capital of the country. The lunar date, day, Lunar Nakshatra and planetary combinations prevailing at that time give holistic information about coming weather patterns.

Saptanadi Chakra

1. Saptanadi Chakra is very useful in prediction of weather, especially for rainfall. There are two variants based on two ancient sources of Saptanadi Chakram: Narapati Jayacharyā and Krishi-Parāshara and all later texts are based on them. The original source of Saptanadi Chakra was a Tantric text titled ‘Yāmaleeya-Svarodaya’.
2. There are 27 Nakshatra for the purpose of astro-meteorology. Apart from these, the 28th Nakshatra ‘Abhijit’ is also allotted a space towards the end of Uttarashada.
3. These Nakshatras are subdivided into 7 Nadis starting from ‘Krittika’ (3rd Nakshatra) as ‘Vat Nadi’ followed by ‘Ativat’, ‘Dahan’, ‘Soumya’, ‘Neera’, ‘Jala’ and ‘Amrita’ and the sequence continues as shown in the diagram below. The sequence follows a serpentine pattern. This is called ‘Saptanadi Chakra’
Saptanadi Chakra
4. Vat produces windy weather, Ativat produces cold, Dahan increases temperature, and Soumya, Neera, Jala and Amrita nadis are rain producing.
Parashara method of prediction
 • Each Samvatsara has Nava Nayakas and a particular planet as a ruler, another planet as a minister, and another planet as ruler of cloud, and depending on the formation of these grouping of planets; one can study the amount of rainfall.
• The following chart gives the results of different planets being the Ruler of the year.
• If the entry of Sun in Aridra Nakshatra happens after sunset and before the next Sun rise, it is good for rainfall and weather.
• All other times are considered inauspicious. Solar entry in Aridra Nakshatra between sunrise and 12 noon is especially bad and points towards coming famine.
• Sun entering Ardra during late evening or night indicates widespread and plentiful rainfall leading to good crops and easy availability of food grains.
Varahmihir’s Principles of Weather forecast:
 •Aswini, Krittika, Rohini, Purvabhadra, Uttarabhadra, Anuradha, Sravana, Punarvasu and Pushya are masculine Nakshatras.
• Bharani, Hasta, Chitra, Swati, Visakha, Purva, Uttara, Aslesha, Magha, Jyeshta, Aridra, Dhanista, Purvashadha and Revati are feminine Nakshatras.
• Satabhisha, Mrigasira and Moola are neutral.
• When the Sun and the Moon are in neutral Nakshatras there will be winds.
• When they are in feminine Nakshatras there will be lightning and thunderstorms.
• When the Sun occupies a feminine Nakshatra and the Moon a masculine one or vice-versa there will be rains.
• When many planets are in one Rashi, preferably in one Nakshatra, it affects the weather.
• When many planets gather in one Rashi with Mars and Sun joining them and Mars is with Rahu, there can be a terrible downpour.
• When there is concentration of planets in one Rashi, the weather begins to fluctuate and if Moon joins them, there will be heavy downpour.
• When Mars transits from one Rashi into another within two days there is a perceptible change in weather and in the rainy season there will be good rainfall. Mars is the most powerful planet causing rainfall.
• Cancer, Pisces and Capricorn are full watery signs; Taurus, Leo and Aquarius are half watery signs; Aries, Libra and Scorpio are quarter watery signs while Gemini, Virgo and Sagittarius are non watery signs.
• Moon and Venus are full-blown watery planets.
• During Dakshinayana malefic planets (Saturn, Sun, and Mars) transiting through the Amrita, Jala and Neera Nadi, would give rise to ordinary rains.
• If benefic planets transit the above constellations, there will be plenty of rain.
Predictions for the Year 2011

For this we have to cast a chart when the Sun enters Aridra Nakshatra. In this year Sun entered Aridra Nakshatra at 1606 hrs on 22 June 2011 and the chart below is cast for New Delhi for that day and time.               


Lagna: Libra, Moon: P’Bhadra 2, Mars: Krittika 4, Mercury: Aridra 4, Jupiter: Ashwini 3, Venus: Rohini 4, Saturn: Hasta 2 and Rahu: Jyeshta 4 / Ketu: Mrigashira 2
Placement in Saptanadi Chakra
Sun, Mercury & Saturn: Soumya Nadi, Moon: Neera Nadi, Mars: Vat Nadi,  Jupiter ,Venus & Rahu: Ativat Nadi and Ketu: Dahan Nadi
1. For Kharanama Samvatsara, ruler of the year is Moon, Mantri is Jupiter and Megadhipa is Mercury and this combination should give heavy rains and good harvest.
2. In the chart, Lagna is Libra, a quarter watery sign and Lagna Lord is Venus is a full watery planet. Due to its placement in 8th house the rainfall may not be full / heavy. Also Lagna is in Papakartari yoga surrounded by Rahu & Saturn. Jupiter a benefic aspecting Lagna will bring some relief. Eastern region will get good rains.
3. Moon being a watery planet posited in Aquarius and Neera Nadi indicates plenty and timely rainfall. In Navamsha chart, Moon though posited in Navamsha Lagna and in Taurus, a half watery sign, might not give enough rains because of its placement in 8th Amsha vis-à-vis Rashi Lagna.
4. The south west direction has as many as five planets in Aridra Pravesha chart. Mars, Venus, Ketu, Sun and Mercury there will give erratic monsoon for the places in this direction. Kerala, Karnataka, Goa and Maharashtra may not have good rains because malefic planets overweigh benefic planets.
5. Mars and Saturn aspect on Rahu indicates heavy rains for North eastern region.
6. As per Saptanadi Chakra, 5 planets in first three Nadis (Vat, Ativat & Dahan), three in Soumya Nadi and only one planet Moon in last three Nadis (Neera, Jala & Amrita) indicates high winds and arid conditions and we may not see heavy rains during next one month.
7. Over the period of next three months we have to watch the transit of Sun, Moon, Mars, Mercury and Venus to gauge the total rainfall. Usually charts are cast for ingress of Sun into different sign and interpretation has to be made for each month.
Author’s Note
Mundane Astrology is a vast subject and encompasses an array of topics like prediction of weather, rainfall, earthquakes, national disasters like floods / fires /major accidents, epidemics etc. What I have touched upon is only the rainfall aspect and serious students have to do concerted and diligent research to master the subject in toto. Following classic / books may be used for reference:

1. Brihat Samhita by Varahamihira

2. Applied Astrology by KN Rao

3.Time Tested Techniques of Mundane Astrology by MS Mehta and A Radhika

4. Astrology in Predicting Weather and Earthquakes by BV Raman.

5. Mundane Astrology by KB Gopalakrishnan.

6. Raphael’s Mundane Astrology by Raphael

7. Mundane or National Astrology by HS Green

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