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 years called the American Ephemeris. 2. Get in tune with the perigees. If you don’t want to keep referring to a measuring stick, held up to the Moon, information on when to expect its next Perigee can be found in nautical almanacs published by the coastguard, and many Moon calendars. The weather will nearly always turn for the worse at Perigee time, dishing up winds, high swells, high tides, stronger winds and possible gales. For an online free perigee calculator, that you can download to use offline for any date, go to http://www.fourmilab.ch/earthview/pacalc.html 3. Plot and compare past cycles. There are many New/Full Moon cycles. One is called the Metonic and is exactly 19 years, as can be seen by the following two tables in which Full Moons 19 years apart fall on nearly the same day. If the moon causes the weather, then the implication is clear – weather can be predicted by looking back. Weather conditions in the future will be the same as it was in the past where the Moon is worked out to be again in the same place in the sky. In the tables opposite are the dates of all Full Moons over a 19 year period. It is easy to see the 19 year cycle. This means one can only look at weather maps 19 years ago. Also 38 years ago. But it is not the whole story, akthough it will give some indication. Perigees must be also taken into account. However with the 19 year cycle, monthly declinations match, also Moon rise and set times 152

Predicting JANFEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1981 20 19 21 19 19 18 16 14 14 14 12 11 1982 10 8 10 8 8 7 6 5 4 3 2 1 1983 29 27 29 27 27 25 25 24 22 22 21 20 1984 19 17 17 16 15 14 13 12 10 10 9 8 1985 7 6 7 5 5 3 2 30 29 29 28 27 1986 26 25 26 25 24 22 21 20 18 18 16 16 1987 15 14 16 14 14 12 11 9 8 7 6 5 1988 4 3 4 2 31 30 29 27 26 25 24 23 1989 22 21 22 21 21 19 19 17 15 15 13 13 1990 11 10 11 10 10 8 8 7 5 4 3 2 1991 1 1 29 28 27 27 25 24 23 22 21 1992 20 18 19 17 17 15 15 13 12 12 10 10 1993 9 7 8 7 6 5 4 2 1 1 29 29 1994 28 26 27 26 25 23 23 21 20 20 18 18 1995 17 16 17 16 15 13 12 11 9 9 7 7 1996 6 5 5 4 3 2 1 29 27 27 25 25 1997 24 22 24 23 22 21 20 18 17 16 15 14 1998 13 11 13 12 12 10 10 8 6 6 4 4 1999 2 1 2 1 30 29 28 27 25 25 23 23 2000 21 20 20 19 18 17 17 15 14 13 12 11 JANFEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2000 21 20 20 19 18 17 17 15 14 13 12 11 2001 10 8 10 8 8 6 6 4 3 3 1 1 2002 29 27 29 27 26 25 24 23 22 21 20 20 2003 18 17 18 17 16 14 14 12 11 10 9 9 2004 8 6 7 5 5 3 2 30 29 28 27 27 2005 25 24 26 24 24 22 21 20 18 18 16 16 2006 14 13 15 14 13 12 11 9 8 7 6 5 2007 4 2 4 3 2 1 1 28 27 26 25 24 2008 23 21 22 20 20 19 18 17 15 15 13 13 2009 11 10 11 10 9 8 7 6 5 4 3 2 2010 30 1 29 28 26 26 25 23 23 22 21 2011 20 18 20 18 17 16 15 14 12 12 11 11 2012 9 8 8 7 6 4 4 2 1 30 30 28 2013 27 26 27 26 25 23 23 21 19 19 18 17 2014 16 15 17 15 15 13 12 11 9 8 7 6 2015 5 4 6 4 4 3 2 30 28 27 26 25 2016 24 23 23 22 22 20 20 18 17 16 15 14 2017 12 11 13 11 11 10 9 8 6 6 4 4 2018 2 1 2 1 30 28 28 26 25 25 23 23 2019 21 20 21 19 19 17 17 16 14 14 13 12 153

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

years called the American Ephemeris.<br />

2. Get in tune with the perigees.<br />

If you don’t want to keep referring to a measuring<br />

stick, held up to the <strong>Moon</strong>, information on when to expect<br />

its next Perigee can be found in nautical almanacs published<br />

by the coastguard, and many <strong>Moon</strong> calendars. <strong>The</strong> weather<br />

will nearly always turn for the worse at Perigee time, dishing<br />

up winds, high swells, high tides, stronger winds and<br />

possible gales. For an online free perigee calculator, that<br />

you can download to use offline for any date, go to<br />

http://www.fourmilab.ch/earthview/pacalc.html<br />

3. Plot and compare past cycles.<br />

<strong>The</strong>re are many New/Full <strong>Moon</strong> cycles. One is called<br />

the Metonic and is exactly 19 years, as can be seen by the<br />

following two tables in which Full <strong>Moon</strong>s 19 years apart<br />

fall on nearly the same day. If the moon causes the weather,<br />

then the implication is clear – weather can be predicted by<br />

looking back. <strong>Weather</strong> conditions in the future will be the<br />

same as it was in the past where the <strong>Moon</strong> is worked out to<br />

be again in the same place in the sky.<br />

In the tables opposite are the dates of all Full <strong>Moon</strong>s<br />

over a 19 year period. It is easy to see the 19 year cycle.<br />

This means one can only look at weather maps 19 years<br />

ago. Also 38 years ago. But it is not the whole story,<br />

akthough it will give some indication. Perigees must be<br />

also taken into account. However with the 19 year cycle,<br />

monthly declinations match, also <strong>Moon</strong> rise and set times<br />

152

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