Cold

I came up with a prediction 2 years ago about the weather and it’s relation to the solstice.  It’s a hypothesis based on observation that has for the last 2 years, been correct.

Approximately 30 days after the solstice passes, we, that is the Midwest, is hit with a batch of extreme temperatures.

What happens is that during the winter solstice, the sun is furthest away from the north pole (not via distance from the sun but from angle).  This means that around the winter solstice, even during mid-day, there is no sunshine at the north pole.  This stretch of days without sunshine causes deep cold to set in over the region.  Since weather is a chaotic system that is always changing, always moving, it takes about 30 days for this very cold air to make its way into a weather system and distribute itself across the northern hemisphere.

Now, here’s a tidbit of information:  Most people think that during the winter of the northern hemisphere, that the sun is furthest away from the earth.  This is not true and I will explain one way to determine this.

The earth is tilted on it’s axis so that every 180 degrees around the sun, the north pole will face the sun or the south pole will face the sun.  It is during the equinox that both poles are the same angle towards the sun.

The earth isn’t perfectly centered in its orbit around the sun.  So again every 180 degrees around the sun, we are at apogee (furthest) or perigee (closest). Those dates are, Early July we are at apogee and early January at perigee.  Yes, we are actually closer to the sun in January then at any other time of the year.

The coldest place on earth is Antarctica.  It is significantly colder at the south pole then at the north pole.  When you put the two pieces of information together you see why.  During the southern hemisphere’s winter the sun actually is the farthest away from the earth.  Those two conditions contribute to others, causing it to be so much colder down there during the winter than it is up here.

I don’t know about you but I’ll take -5 degrees with a -30 windchill over -50 with a -100 degree windchill any day.

Check this out: Weather Conditions in Antarctica and Weather Conditions in the Arctic

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~ by aeroslin on January 16, 2009.

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