Sunday, October 7, 2012

morning vs afternoon... (pm.07.oct.12)>

Sunday's stats:

Early morning low temp: 59.5F (15.3C)
Daytime high temp: 69.3F (20.7C)
Rainfall: trace

The humidity at my place on Tushita Road just below the mountaineering center has been creeping upward since last night.  In fact, I've been recording 65-72% on average, which is quite high for this time of year.  That moisture in the air contributed to a more rapid development of clouds today than we've had during the past few days, and kept temperatures a bit cooler.  There were some isolated thundershowers roaming the mountains of Himachal Pradesh this afternoon, but as far as I am aware, there wasn't much in the way of significant rainfall -- at least not here at our elevation.

The weather pattern is not exactly dead calm, thanks to a weak area of low pressure in the upper atmosphere which as become established over the western Himalayan region.  It is becoming progressively colder aloft, which is giving us a bit of instability to deal with, primarily during the afternoon/early evening hours after the sun has a chance to heat up the lower levels.  Looking at the computer model output for the coming week, it appears that this scenario will continue... which will keep us dealing with a risk of some mainly PM thundershower development.  The closer to the mountains/higher up you are, the better chance you have of getting some action.

Temperatures are near or slightly below average for this time of year -- and should remain fairly consistent during the coming several days.  Of course sunshine makes all the difference, so the timing of mid-day cloud development will greatly determine high/max temps for any given day.

SUNDAY NIGHT:
a few clouds, along with a slight chance of a brief shower... then clearing skies.
low: 15C (59F)

MONDAY:
mostly sunny AM.  partly to mostly cloudy at times during the PM, with a thundershower possible.
high: 21C (70F)

MONDAY NIGHT:
an evening shower?  otherwise clear to partly cloudy and seasonably cool.
low: 14C (58F)

TUESDAY:
morning sunshine, but some clouds and a chance of a thundershower during the PM.
high: 21C (69F)

WEDNESDAY:
mostly sunny in the morning.  partly cloudy in the afternoon with an isolated thundershower possible.
morning low: 14C (58F)
daytime high: 21C (69F)

THURSDAY:
morning sun, with some afternoon clouds.  still a risk of a PM thundershower.
morning low: 14C (57F)
daytime high: 21C (69F)

FRIDAY:
morning sun giving way to some afternoon clouds, along with a good chance of a passing thundershower.
morning low: 14C (57F)
daytime high: 20C (68F)