Brihat Samitha 28-36
– 28 –
Signs of Immediate Rain
1If, at a query regarding rain, the Moon be posited in the Lagna which is a watery sign (Kataka, Makara, Kumbha or Meena) or in the 4th, 7th or 10th house in the bright fortnight, there will be plentiful rain ere long in the monsoon, provided she is aspected by benefics. If she be aspected by malefics in the above Yogas, there will be very little rain. In predicting rain, Venus should be treated on a par with the Moon during the rainy season .
2If the querist touches any wet object or water or any other liquid (pearls, etc.), or stands near water, or is about to do something connected with water or liquid, or, at the time, the word ‘water’ be heard in the place, then he should be told that there is rain ere long without any doubt.
3If, during the rainy season, the Sun at rising cannot be looked at on account of his dazzling brilliance and appear like molten gold, or possess the pure lustre of beryl, or if he burns with intense heat at the zenith of the sky, there will be rain on the very same day.
4The following are the symptoms of rain—tasteless water, the sky of the colour of cow’s eyes or crow’s eggs, unconstrainted directions, moisture of salt, calm wind, much tumbling of fishes ashore and the repeated croakings of frogs.
5Cats scratching the earth very much with their nails, accumulation of rust on iron or bronze vessels with a musty smell and construction of bridges on the high roads by children indicate immediate rain.
6Mountains resembling heaps of collyrium or their caves wrap in vapour and haloes of the colour of cock’s eyes round the Moon, are indications of fain.
7Ants shifting their eggs without any trouble, snakes mating and climbing down the trees and cows’ stampede are signs of rain.
8If the chameleons perched on the tops of trees fix their gaze on the firmament, and cows look up towards the Sun, there will be rain without much delay.
9If the domestic animals such as cows are reluctant to go out of the house and shake their ears and hoofs, or, if the dogs behave in the same manner, it should be declared that there will be rainfall soon.
10When dogs stand on the roofs of houses, or bark continuously looking up towards the heavens, or when lightning is seen flashing from the north-east at daytime, then the earth will be completely filled with water.
11When the Moon has the red hue of the eyes of a parrot or pigeon or of honey, and when a second Moon shines in the sky, there will be immediate rain.
12If there be peals of thunder at night and blood-red lines of lightning, standing erect like rods at daytime, and if there be a cool breeze blowing from the east, there would be immediate rain.
13If the sprouts of creepers are turned up towards the sky, birds bathe in water or dust, and creeping worms betake themselves to the tips of grass, there will be an immediate fall of rain.
14At dawn or twilight, if the clouds show the same colour as pea-cocks, parrots, blue-jays or Chataka birds, or have the lustre of roses, and red lotuses and resemble in shape waves, hills, crocodiles, tortoises or fishes and are piled up with many folds, they will pour down rain before long.
15If the clouds are as white as chunam or the Moon at the edges, as dark as collyrium or bees at the centre, glossy, have many folds, (i.e., appear piled up) dropping particles of water, and breaks like the steps of a stair-case, and being formed in the east sail westward or vice versa, they yield plenty of rain to the earth before long.
16If at sunrise or sunset there is a rainbow, a cross bar of clouds, a mock Sun, a straight fragmentary rainbow, flashes of lightning, and halos round the Sun and the Moon, it should be predicted that there will be plentiful rain in the near future.
17If the sky bears the tinge of the wings of the Tittira bird, and groups of birds twitter merrily at sunrise and sunset, then the clouds will pour down rain soon by day and night respectively .
18If the Sunbeams called unerring are stretched upwards like the out-stretched arms of the setting Mountain and if the clouds thunder close to the earth, they are to be understood to be important signs of rain.
19If in the monsoon the Moon being placed in the 7th house from Venus or in the 5th, 7th, or 9th house from Saturn, is aspected by benefics, there be rain soon.
20Generally there will be rain during the planets heliacal rising and setting, at the conjunction of the non-luminaries with the Moon, at their entering any of the six Mandalas, at the end of a fortnight and a solstice, and certainly when the Sun is passing through the asterism ‘Ardra’.
21There will be rain at the conjunction of Mercury and Venus, of Mercury and Jupiter and of Jupiter and Venus. But at the conjunction of Mars and Saturn, there will arise peril from wind and fire, provided they are neither conjoined with nor aspected by any of the benefics.
22When the planets are about to be eclipsed by the Sun in front or behind (slower planets in front and faster ones behind), they convert the earth into an ocean as it were.
23-24there be glow-worms at night near the clouds, before long there will be rain filling all the fields. In spite of rainfall, if jackals howl in the evening, there will not be a drop of water, though the sky be overcast for seven days at a stretch. This need not be doubted.