Thursday, February 6, 2014

rain risk rising again... (am.06.feb.14)>

*Update @ 5:43pm...  Rain showers only scattered and spotty now.  I'm working on this evening's new blog post... coming shortly.

*Update @ 4:17pm... The current temp has dropped to 39.7F (4.3C), as sprinkles and drizzle become a steadier light rain.  Humidity is climbing above 60%, with the main saturation layer still above us.  The freezing level is going to be precariously close this evening.

*Update @ 3:02pm... It is 42.6F (5.9C) right now, and that's close to the coldest temp of the entire day.  Clouds are very thick, and there are some pretty hefty snow showers just uphill which have been developing in the last couple of hours -- indication that the freezing level is not too far above us.  We should be getting to the threshold of precipitation development quite soon...

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There has been a lot of new cloud development overnight from central Pakistan into Himachal and Jammu & Kashmir, and we are sharing in that this morning.  I'm recording an early morning low temp of 42.4F (5.8C), and there has been no precipitation since last report.  The humidity reading is currently 40%.

The next and perhaps strongest phase of our stretch of active weather which began Sunday evening looks like it will be getting underway this afternoon.  The latest upper-level disturbance/circulation center is now over eastern Iran, and the wave of energy and cold air aloft in association with it will move toward northern India by this time tomorrow morning.  All the normal ingredients for a storm system like this are assembling, and now we get to wait and see how the rain and snow development will work itself out here along the front slopes of the mountains.  I've only recorded about 1cm (0.41") of rain this week so far -- so up to this point we really haven't been able to cash in on what this disturbed and unstable atmosphere might have to offer us.

There should be a better southerly flow of air in the lower levels of the atmosphere out ahead of this system, so the computer models seem to be more aggressive and consistent in showing a good tap of moisture providing fuel for some significant precipitation between late this afternoon or evening and perhaps early Saturday.  Technology tells us we are in line for at least 3cm (1.2") of rain/melted snow in our immediate area during that time frame -- but only one time this whole winter season have those models been pretty much spot on.  Also one time the projections were actually way too low, while precip forecasts have been way overdone on all the other occasions.

It still appears that the freezing level and thus most of the snow would remain above McLeod, but that will also need to be monitored on a moment-by-moment basis.  At any rate, temperatures are going to remain quite cold for the first half of February -- all the way into early next week.

Check the CURRENT FORECAST specifics on the tab at the top of the page.