THE EARLY COLDNESS
A Vortex Shift ?
your woolies ready ?
WALLPAPER: STORM BREWING AT THE DIVIDE |
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.. It's not a coincidence that a strong polar vortex is associated with a La NiƱa year. When the polar vortex slips south, (usually January/February,) heavy cold invades the central continental United States.THE PERFECT JET STREAM |
.. This allows the prevailing winds to pick up the gulf of Alaska moisture provided by the Japan Current.
.. This, of course delivers next year's stream flows to our mountains. We're all for that.
.. BUT, and it's a big but: depending on the position of the slipping polar vortex, we can get some very cold air that mitigates against a heavy snow fall. We'll see!
NICE LOW HIGHS |
.. It's the mid day high's that currently determine the amount of melting that mid level snow packs experience.
.. And, it's the mid level snows that are responsible for Spring runoff and early season flows of our rivers.
LOCAL TEMPERATURE OSCILLATION |
.. They arrive every three days and last for three days. We can only hope that that this pattern persists for the winter.
MID DAY MELT -4°F |
.. As long as the winds don't come and as long as the sun doth shine we enjoy "sweater weather" days and fireplace nights.
THE RARE CLEAN BENCH |
A GOOD EVENING'S WORK |
.. Well then, it's 11:00 AM and the temperature has risen to -6°F, there is no wind and the sun is squinty bright. Before we put on our sweater we shall have a left over waffle for brunch - there's still some coffee and whipped cream left.
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WALLPAPER: THE MAPLE CASCADE |