Predicting Weather By The Moon - Xavier University Libraries

Predicting Weather By The Moon - Xavier University Libraries Predicting Weather By The Moon - Xavier University Libraries

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Weather By The Moon 1905, 1923, 1941, 1959, 1978, 1997 and will be again about the year 2,014. We are just past the midpoint, 2001- 2. There have been cold winters in the far south(South Island of NZ) of the world and the far north(US, Canada and UK.)up until this midpoint time, but also hot summers in those places. After 2004 the winters will be wetter and warmer, and the summers more mild. My colleague Harry Alcock collected local rainfall figures (in Waikato)based on the maximum declination of 28° against the minimum of 18° over a three year period while the Moon was at that declination and covering three periods of the 18.6 year cycle. The results are illuminat- The 28deg. years The 18deg. years 1949 3059mm 1968 3299mm 1986 3029mm 140 Total 9387mm 1940 3381mm 1959 3592mm 1977 3496mm Total 10, 469mm

What Causes Weather ing. The differences between the 28° and 18° rainfall figures are consistent and total 1082mm or 43 inches. The changing declination of the Moon from the 28° down to 18° and back again to 28°, north and south of the equator has the depressions and anticyclones drifting eastwards at differing latitudes, so that depressions, being ‘further down country’ already, would be expected to drift south-eastwards over the Southern Hemisphere. And this did occur frequently during the winter of 1997. The declinations control the direction of depressions. As the declination moves either north or south, so the depressions will cross the country with those changed latitudes. The same changing latitudes will take place with anticyclones. Prior to 2000, in New Zealand, anticyclones have been predominantly about the south of the South Island, with winds over the North Island frequently from an easterly quarter. With a 28° declination the anticyclones will seldom cross New Zealand to the south. Anticyclones will follow the Moon northeast when the Moon is moving from the Southern Hemisphere northwards and southeast when moving southwards. The east drift as a component of the southeast or northeast drift follows the Moon’s orbit which is eastwards around the earth. Tidal heights are also affected by the changing declination of the Moon between the 18-28° north and south of the equator each month over the nine year period. The declination shifts the location of cyclonic systems. As the Moon incrementally changes its declination angle year by year the latitudes change by the same rate at which cyclones 141

<strong>Weather</strong> <strong>By</strong> <strong>The</strong> <strong>Moon</strong><br />

1905, 1923, 1941, 1959, 1978, 1997 and will be again<br />

about the year 2,014. We are just past the midpoint, 2001-<br />

2. <strong>The</strong>re have been cold winters in the far south(South Island<br />

of NZ) of the world and the far north(US, Canada and<br />

UK.)up until this midpoint time, but also hot summers in<br />

those places. After 2004 the winters will be wetter and<br />

warmer, and the summers more mild.<br />

My colleague Harry Alcock collected local rainfall<br />

figures (in Waikato)based on the maximum declination of<br />

28° against the minimum of 18° over a three year period<br />

while the <strong>Moon</strong> was at that declination and covering three<br />

periods of the 18.6 year cycle. <strong>The</strong> results are illuminat-<br />

<strong>The</strong><br />

28deg.<br />

years<br />

<strong>The</strong><br />

18deg.<br />

years<br />

1949 3059mm<br />

1968 3299mm<br />

1986 3029mm<br />

140<br />

Total<br />

9387mm<br />

1940 3381mm<br />

1959 3592mm<br />

1977 3496mm<br />

Total<br />

10,<br />

469mm

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