Rainfall prediction forms a voluminous part of
Mundane astrology followed in India since time immemorial. In fact big names
such as Rishis Kashyapa, Parashara,
Garga and Vatsa are associated with prediction of rainfall. Their
views on long range prediction of climate and also weather patterns with
specific reference to rainfall are given in 8 chapters in the 2000 year old
book called Brihad Samhita written by Varahamihira. Any reader of those
chapters would be surprised at the depth of the details such as the time,
duration, place, extent, quantity and quality of rainfall that can possibly be
detected as early as 6 months before the rains occur. These chapters deserve a
deeper study and application so as to test them in the current times and if
successful to incorporate them in rainfall prediction models.
The earliest prediction model for next year’s
monsoon is known as “Garbottam” which means ‘Fetus formation’ or ‘nature of
pregnancy’. This is also known as ‘pregnancy of
clouds’. This is observed on the month of Margazhi, soon after the
rainfall of the previous season is over. At the time the Sun enters the star Pooradam (Purvashada) in then sign of Sagittarius in
Margazhi, it is said that the conditions for the next season’s rainfall start
taking shape. This goes on for nearly 14 days when the Sun will be crossing the
star Pooradam. This period is known as Garbottam period or pregnancy period.
One can find the beginning and end of this period mentioned in the almanacs
(Panchangam).
This year’s Garbottam starts on 29th December 2015 at
5 PM and ends on 11th January 2016 at 6.56 PM.
During this period 5 types of meteorological factors
are observed day and night at 3 levels of surroundings.
The
5 factors are :-
1. Winds
(whether gentle breeze like or cool or heavy or dusty)
2. Rain (whether it rains and if it rains whether it
is heavy or it drizzles.)
3. Lightening
(Whether lightening occurs or not, also whether rainbow appears or not)
4. Roar
of thunder (whether low, rumbling noise of thunder is heard or heavy sound of
thunder is heard)
5. Appearance
of clouds (whether sky is overcast and the shape of the clouds)
The
three-some observation is:-
1. Terrestrial
2. Atmospheric
3. Planetary.
The observation is
applicable for the place of the observer. In olden days every village had
astrologers doing that observation. Today meteorology applies to vast regions,
but this ancient Indian method helps to tell on day to day basis whether a
particular locality would get rains or not. For instance, though rain clouds
may hover over Chennai, it need not give rain at all places in Chennai. It may
have rained say, in Vadapalani but not
in Mylapore. Such differences within short distances can be predicted by this
method. For this, the observer must be available in that particular place
continuously at least from Margazhi to Panguni and on specific days at other
months.
The basic rationale of this
method of Garbottam is that the kind of meteorological features present
in a particular place is related to rainfall or no rainfall that would occur in
that place 195 days later! In other words, the meteorological conditions seen at
any place at a particular time in space is related to rainfall or no-rain fall
at the same place when earth has moved to 180 degrees away from that initial
place. This can be shown by a diagram as follows:
The meteorological features present (shown as
smaller circles) on day 1 at a particular place is related to the
meteorological features seen after 195 days when the place is just opposite to
the location on day 1.
For calculation of the day, one must be aware of the
waxing and waning phase of the Moon and the days in each phase. Suppose favourable
meteorological features (pregnancy features) are noticed in the waxing period
of Margazhi, the rainfall would occur in the waning period 6 months later, that
is, in the month of Vaikasi. The meteorological features
that hovered above Chennai in the waning period of Chitthirai resulted in the century’s
highest rainfall in the waxing period of Karthigai in the November - December
this year.
In this model, if favourable features are observed
at day time, rainfall would occur at night. If the features are noticed in the
east, the rain clouds would come from the west and vice versa. If features are
noticed at morning twilight, rainfall would occur at evening twilight. Like
this the opposites must be ascertained for prediction.
Garbottam calculation:-
The Garbottam days have a slightly different calculation.
The rationale is that each day of the Garbottam in Pooradam in Sagittarius
would have a bearing for the duration of sun's stay in every star starting from
Arudra (Thrivadhirai) in the month of Aani / Gemini in the next year. This goes upto Moola in next
Margazhi.
The stars
mentioned below indicate the 14 day transit of Sun in that star in the next
year when rainy season will be on. Eg 1st day of Garbottam will
have an effect on 13 to 14 days of sun's transit in Thiruvadhirai. The
corresponding date of Garbottam as of now is given following the day and the corresponding
rainfall starting date for the year 2016 is given in brackets.
1st day of Garbottam = 29 Dec evening (5 PM ) to 30 Dec
evening- this corresponds to rainfall
(or no rainfall) features when Sun begins transit of Arudra ( 21st
June 2016)
2nd day-
30 Dec- 31 Dec – Punarpoosam (5th
July 2016)
3rd day
– 31 Dec – 1 Jan – Poosam (19th July 2016)
4th day
- 1 Jan – 2 Jan – Ayilyam (2nd August 2016)
5th day
– 2 Jan – 3 Jan – Magam (16th August 2016)
6th day
– 3 Jan – 4 Jan – Purva phalguni
(Pooram) (30th August 2016)
7th day
- 4 Jan – 5 Jan – Uttara Phalguni (Uttaram) (13th September 2016)
8th day
5 - Jan – 6 Jan – Hastha (26th September 2016)
9th day
- 6 Jan – 7 Jan – Chithra (10th
October 2016)
10th day
- 7 Jan – 8 Jan – Swati (23rd
October 2016)
11th day
– 8 Jan – 9 Jan – Vishaka (6th November 2016)
12th day
– 9 Jan – 10 Jan – Anuradha (Anusham) (19th November 2016)
13th day
- 10 Jan -11 Jan – Jyeshta (Kettai) (2nd December 2016)
{Note:
In my previous article on general predictions for 2016 season, I noted that
planetary combination for rainfall that occurred in November- December 2015
reappears in the same period in 2016 also. The dates of heavy rainfall are
likely to be 18, 19 and 20 November 2016. This corresponds to the 11th
and 12th day of Garbottam. A keen observation on these days would
confirm this prospect. Rainfall astrology has layers of confirmation or
rejection like this as a matter of fine-tuning the prediction.}
The
interpretation is as follows:
If on the 1st day of Garbottam, there
are dark clouds all over the sky and sun is hidden behind, it will rain here
and there and every now and then in the 14 day period when Sun will be
transiting Arudra (in Gemini) (starting from 21st June 2016).
Similarly if on
the 2nd day of Garbottam, there are dark clouds all over the
sky and sun is hidden behind, it will rain here and there and every now and
then in the 14 day period when Sun will be transiting Punarvasu star (in Gemini
and Cancer) (starting from 15th July 2016).
Similarly on the
3rd day of Garbottam, there are dark clouds all over the sky
and sun is hidden behind, it will rain here and there and every now and then in
the 14 day period when Sun will be transiting Poosam or Pushya star (in
Cancer). (Staring from 19th July 2016)
Like this Sun's
transit in subsequent stars are noted for periods of rainfall. If it rains when
Sun enters a star, it will rain throughout the period of Sun’s transit in that
star.
Now
the features to be observed:-
Note:- Applicable on day to day basis during Garbottam
period and also after that. The prediction is for the corresponding day later,
on the 195th day..
1. Winds:-
Gentle and
agreeable wind = Good rainfall
Cool breeze from
North and Northeast = good rainfall.
Heavy winds =
rain clouds would gather but be shattered
Dust storm = No
rains
2. Rain
In Margazhi, usually
there will be no rains. If it rains heavily (during Garbottam), rainfall on the
corresponding day would be affected. A gentle rain or drizzle would give good
rainfall on the corresponding day after 6 and a half months.
3. Lightening
Lightening =
good rainfall
Rainbow in the
morning or evening = good rainfall
4. Roar of thunder
Low, rumbling
roar of thunder = good rainfall
Heavy sounding
thunder = rain clouds would shatter away.
5. Clouds
Sky overcast
with huge, bright, dense clouds = good rainfall
Needle shaped
clouds or sword shaped clouds = good rainfall
Blood red clouds
= good rainfall.
Further
Interpretation:-
If one any day
in the months from Margazhi to Panguni all the above 5 factors are present, the
quantity of the subsequent rainfall will be 1 Drona. (Drona is equal to 200
phalas. Quantification in today's terms is not known. Perhaps the rainfall on
those days can be recorded and cross checked with other days when similar
conditions prevailed.)
Reduce the
quantity by quarter for the absence of every one factor.
Three-some
observation.
1. Terrestrial
2. Atmospheric
3. Planetary.
(I) Terrestrial factors to be observed.
1. Sweet
chirpings of birds.
2. Animals
moving in relaxed mood and making pleasant sounds
3. Kids
making sweet sounds and playing
4. Trees
with sprouts
5.
Trees grow without diseases.
(II) Atmospheric factors to be observed.
1. Clouds
resembling pearl or silver color
2. Clouds
in the shape of aquatic animal, huge and dense.
3. These
clouds scorched by bright sun light
4. Gentle
breeze
5. Sun
and the Moon encircled by glossy, bright and thick halo.
6. Sky
filled with bulky clouds or smooth needle like clouds (cirrus), or in the shape
of sword.
7. Clouds
appearing in red or blue tint.
8. Pleasant
twilights in morning and evening.
9. Light
rumbling thunder
10. Rainbow
in the lower horizon.
11. Red
glow in the horizon at dawn and sun set. This must be seen only in
Margashira and Pushya months. (Solar months also)
12. Clouds
with halos
{Note:- Presence of 3 and 4 features together of the above
category would result in torrential rain on the 195th day)
III) Planetary factors to be observed in the 4 month
period.
Good for
conception of rainfall
- Planets
appearing with clear and bright disc at night
- Planets
moving in Northern declinations
- Moon and stars
must appear white
Planetary
features marring conception of rainfall.
· Eclipses
( mar rainfall later on the corresponding day)
· Planetary
war (where planets are close together in such a way one planet will be crossing
another.) ( mars rainfall for several days in the corresponding period.)
{Note:- During the current Garbottam period, on the 8th
and 9th of January (10, 11th and 12th day of
Garbottam), Saturn and Venus are conjunct within one degree. This is the case of planetary war which mars
rainfall in the corresponding period in November. Earlier we noted 11th
and 12th day of Garbottam as having good planetary combination for
rainfall in on November 18, 19 and 20th of 2016. We must watch how
this happens (on 18th November 2016) and which feature is more
powerful.
Even after Garbottam
is over by 11th January 2016, we must continue the observation as
follows:
Month-wise observation for good rainfall after 195 days:
In Margazhi –
· red
sun in the morning and evening,
-
sky in red colour before sunrise and after sunset.
· clouds
surrounded by halos,
· very
cold.
In Thai -
- · red
sun in the morning and evening,
- · clouds
surrounded by halos,
In Maasi –
· strong
wind,
· sun
and moon must be dimmed by clouds or snowfall at sun rise and sun set,
· fog,
mist, excessive cold
-
In Panguni –
- · rough
and violent storms
- · tawny
colour of the sun,
- · broken
and imperfect halos around the sun and the moon,
- · glossy
clouds moving across the sky
The above features ensure
good 'conception of rainfall'.
In
Chitthrai and Vaikasi, sky marked by
winds, clouds and halos ensure conception of rainfall which will fall 195th day
afterwards.
The following
features during these months mar conception of rainfall.
1. Meteor
showers.
2. Thunderbolt
3. Dust
storm
4. Appearance
of city-like formation of clouds.
5. Unnatural
phenomenon in the atmosphere in colour of sky, clouds etc and at sun rise and
sun set.
6. Rainfall
7. Sighting
of comets
8. Eclipses
(No eclipses are seen during the months of observation in Tamilnadu in 2016)
9. Spots
in solar disc (sun spot maxima)
Position
of Moon during the
above 4 month period.
When the above
3-some favourable features of conception are present in a day when Moon is
crossing Purvashada (Pooradam), Uttarashada (Uttradam), Purva Bhadrapada (Purattadhi),
Uttarabhadrapada (Uttrattadhi) and Rohini, the subsequent rainfall on the 195th day
will be abundant.
When the above
3-some favourable features of conception are present in a day when Moon is
crossing Arudra, Aslesha (Ayilyam) , Magha , Swati and Satabhishak
(sadayam), the subsequent rains will go on for many days. On the contrary, if
the 3-some factors are marred, there will be dryness.
If Moon crosses
all the above mentioned stars with 3-some factors being present and marring factors
being absent in Margazhi - would give rainfall for 8 days later (after 195
days).
In Thai - for 6
days
In Maasi -16
days
In Panguni – 24
days
In Chittrai– 20
days
In Vaiskasi – 3
days.
From the above details,
we can deduce that this year’s (2015) continuous rains in October and November
is related pregnancy features of Panguni and Chitthirai which have a bearing for 24 days and 20 days respectively.
The heaviest rainfall of the century occurred then.
This data also
shows that October and November (Aippasi and Karthigai) are likely to have long
spell of rainfall in any year provided the pregnancy features were good in
Chitthirai and Vaikasi when Moon transited specific stars.
Conclusion:-
This observation
is easy to make but must be done with care. Ancient sages and their disciples
have done this observation year after year for several years, even for millennia.
Since there are marring features too, we need to do the observation for a few
years by checking the marring features also and assess the actual rainfall.
Like any branch of science, this vigyana of rainfall offers testable and
verifiable body of knowledge. Let us make use of it to complement meteorological
predictions.
Note:-
Garbottam of 14 days starting 29th Dec 2015 to 11th Jan 2016 corresponds to roughly 6 month period of rainy season starting from June 21st in the upcoming season.
The 5 meteorological factors +3-some observation also holds good for any day from Margazhi to Vaikashi and has to be correlated to 195 day period for rainfall prediction.
In this we see the days as follows:
Suppose the pregnancy features are seen on prathamai (thithi) in waxing period of say, Thai month, then the corresponding day is Prathamai of waning period of Aadi. (6 months later). This is how it is told in Brihad Samhita. But it will be difficult for common man. That is why I have written the 195 day count (which is also mentioned in Brihad samhita). The days of lunar months are counted to arrive at this number. 6 lunar months = 180 days. Plus half month / one phase makes it 180 +15 = 195 days. The actual occurrence of rain will be in terms of thithis - pradamai, Dwithiyai, thrithiyai and so on.
Is Garbottam applicable across the globe?
It must be checked. Garbottam was seen in Tamilnadu until 3 generations ago. I have heard old timers say that. As Garbottam is associated with rishis this must have been observed throughout India.
Going by the logic of Garbottam, I think it must be
applicable throughout Northern hemisphere by adding or deleting some
meteorological features available in the respective regions. Based on the logic
of Garbottam, people in other regions can develop the factors as applicable to
their region. Anywhere in the globe, the
195 day period must hold good.
Tornadoes are another phenomenon that also comes
under astrological scrutiny. Movement of Mars is a prominent feature in that. I
am yet to study the tornado records.
Garbottam observation period for southern hemisphere
is the opposite of what is in northern hemisphere. Garbottam starts for that
region when Sun enters Arudra - opposite of Pooradam for Northern
hemisphere.