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Sunday, December 6, 2015

changes this week... (pm.06.dec.15)>

Sunday's stats:

Low temp: 50.2F (10.1C) -- updated @ 8:30pm
High temp: 60.0F (15.6C)
Rainfall: none

It's become hazy again early tonight, with only a few high clouds scattered in the southwestern sky.  Our Sunday featured a mixture of sun and high clouds, as has been the case the past few days, with temperatures pleasantly mild for this stage of the winter season.  However, the low temp of the day (so far) occurred during the late afternoon, which is an unusual thing to happen -- due to a fresh surge of cooler air which tumbled down from the north and northwest with the passage of a weak disturbance aloft.  Humidity has remained generally in the 30-45% range.

The sprawling ridge of high pressure which has dominated our weather pattern for most of the past week is in the early stages of breaking down, as some minor ripples in the upper atmosphere start to chip away at it from the west-northwest.  A general westerly flow aloft will continue into Wednesday, keeping us dealing with this back-and-forth between sunshine and periods of high cloudiness, as temperatures begin to trend ever so slightly downward.

By Thursday, our attention will turn to a rather vigorous early winter storm system which is now taking shape over extreme northwestern Iran.  This system is projected to roll across Himalayan north India between Thursday and early Saturday, with a variety of scenarios being advertised by the various computer model data.  Those models are far from any kind of consensus yet -- but we could be looking at measurable rainfall, a decent dose of snow above 8500-9000ft (2600-2700m), and the coldest air mass of the season as we end the week.

Get a look at forecast details on THE 7-DAY OUTLOOK tab, located at the top of the page.  Monthly temp/precip averages can also be found on those tabs above.