Sunday, June 14, 2015

mid-june issues... (am.14.jun.15)>

As the sun comes up this morning we have just a few patches of higher clouds, otherwise it's mostly clear.  The night was calm and quiet with no rainfall -- and my overnight low has been 61.7F (16.5C), which is actually quite a bit cooler than normal for this time of year.

By the middle of June, we're normally on the brink of saying goodbye to reliable summer weather and hello to the first signs of the approaching monsoon.  The weather charts/data the last several days have been hinting at that, especially the extended range data looking a week or ten days into the future.  There's going to be a slow and gradual increase in the moisture content of our air mass during that time frame -- and already we've been flirting with some higher humidity that has made its presence known for only short durations.  There's also going to be a batch of much warmer air pushing in by the middle of next week -- perhaps for the last time this season -- giving us a taste of uncomfortably warm and humid conditions for a at least a couple of days.  Anyway, it's interesting to watch how the atmosphere begins to realign itself as the seasons start to change.

In the short term... we've had some cooler air in the mid- and upper-levels of the atmosphere arrive from the northwest (since yesterday), which will allow an impressive amount of instability to build over our area after a few hours of strong June sunshine.  This will lead to more episodes of showers/thunder and maybe some gusty winds in isolated to scattered places around our area both today and tomorrow.  For the last week, actually, we've seen lots of fluctuations between very warm sunshine, clouds, and thundershowers -- which is pretty much the way it goes during these pre-monsoon weeks.

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