Saturday, October 6, 2012

sun and pm thunder... (pm.06.oct.12)>

Saturday's stats:

Morning low temp: 59.5F (15.3C)
Afternoon high temp: 72.1F (22.3C)
Rainfall: 0.15" (4mm)

The morning was stunningly beautiful, but we had a massive build-up of clouds over the mountains early this afternoon which led to about an hour and a half of thundershowers with some pea-sized hail at times between 3:00 and 4:30pm.  I was surprised to find only 0.15" in my rain gauge, as it seemed like more than that to me.

As is typical for early October, moisture in the air is very limited... I've been measuring humidity ranging generally in the 40-55% range during the past 24 hours, and it's much drier than that in the higher levels of the atmosphere.  Despite that, we have a general trough of low pressure aloft which has established itself across extreme northern India, and that feature is expected to persist for the next few days.  It's a weak kind of weather system, but it does contain some colder air along with a bit of circulation in the mid- and upper levels -- and that means that the risk mainly afternoon thundershower development over the mountains will continue.

Otherwise, enjoy the fantastically comfortable temperatures and liberal doses of fall sunshine... just be prepared for potential interruptions primarily during the mid- to late afternoon hours.

SATURDAY NIGHT:
mostly clear and seasonably cool.
low: 15C (59F)

SUNDAY:
sunny to partly cloudy and pleasant.  a period of thundershowers possible after 2pm.
high: 22C (72F)

SUNDAY NIGHT:
mostly clear.
low: 15C (59F)

MONDAY:
sunshine in the morning, with some clouds during the afternoon.  continued risk of a PM thundershower.
high: 22C (72F)

TUESDAY:
sunny morning - partly cloudy afternoon.  and isolated PM thundershower?
morning low: 14C (58F)
daytime high: 22C (71F)

WEDNESDAY:
morning sun giving way to partly cloudy skies in the afternoon.  an isolated PM thundershower possible.
morning low: 14C (58F)
daytime high: 22C (71F)

THURSDAY:
morning sun, with some afternoon clouds.  still that PM thundershower risk.
morning low: 14C (57F)
daytime high: 22C (71F)