Thursday, November 15, 2012

a rare event... (pm.15.nov.12)>

Thursday's stats:

Early morning low temp: 48.9F (9.4C)
Afternoon high temp: 61.2F (16.2C)
Rainfall: none

It was a very pleasant surprise that we had NO CLOUDS at all today.  Our typical morning sunshine didn't yield to afternoon cumulus development over the mountains, and that is a rare event indeed, as those of you who stay here long-term know.  In fact, I have to go all the way back in my records to the 24th of May to find a day totally devoid of clouds.  I wasn't here for the latter two-thirds of monsoon season this year, but I'm confident there were no 100% sunny days during that period!

The lack of clouds indicates that our air mass has become totally stable for the moment -- in other words, the air aloft has warmed enough in proportion to the surface that no lifting/condensing is taking place during the mid-day and afternoon hours.  It should remain stable tomorrow (Friday), but satellite pics are indicating the potential for some high, thin cirrus clouds to drift our way, which could dim the sun at times.  The high clouds will be a precursor of our next weather system which is expected to move in during the latter half of the weekend, destabilizing the atmosphere once again, and leading to the risk of a couple of random showers or thundershowers.  Snow showers will be possible in the mountains from Saturday night through Sunday night, so be prepared if you plan to be in the higher elevations.

A bubble of milder air will be in the neighborhood for the next 36-48 hours or so, but expect cooler temperatures to return by Sunday -- lasting through most of next week.

THURSDAY NIGHT:
perhaps a few high clouds, otherwise mostly clear.  not quite as cool.
low: 11C (51F)

FRIDAY:
sunshine, with a period or two of high cloudiness.  quite mild for mid-november.
high: 17C (63F)

FRIDAY NIGHT:
fair to partly cloudy and mild.
low: 11C (52F)

SATURDAY:
a mix of sun and clouds.  slight chance of a shower by evening.
high: 17C (63F)

SUNDAY:
partly cloudy and turning cooler.  risk of a passing shower or thundershower.
morning low: 10C (50F)
daytime high: 16C (61F)

MONDAY:
sunny to partly cloudy skies.  seasonably cool.
morning low: 9C (48F)
daytime high: 16C (60F)

TUESDAY:
sunshine and some mainly PM clouds.
morning low: 9C (48F)
daytime high: 16C (60F)