Rain to Begin Shortly...Snow for Some Overnight!..Dec 13th

After a drizzly start..the steadier rain is en route. By 2pm ish most of metro Vancouver will be under the wrath of the front sliding down from the northwest.

Snow levels are dropping behind the front- down to about 300 m so higher elevations of metro Vancouver will likely see this fall as wet snow overnight tonight. So some may have to clear driveways tomorrow morning! Snowfall warning out from Mackenzie through Prince George for 10-15 cm by tonight.

dec13.jpg 

- This front moves quickly inland however, and it looks like but Friday afternoon we have a good shot of seeing the sun again!
- A series of fronts will bring rain and windy conditions over the next several days, arriving roughly every other day. At this point Saturday looks pretty wet & windy..as does Sunday evening into Monday
- But yes this all means mountain snow! By Saturday though much of the back country avalanche risk jumps to high for alpine levels
 - Looks like a high pressure system attempts to build in for Tuesday Wednesday meaning more quiet weather

More snow could mean less ice for Antarctic
- Increased snowfall that's expected in Antarctica as the climate warms is likely to send more ice into the sea, new research finds. The effect is so strong that additional sea-level rise caused by extra snowfall is greater than the rise caused by extra heat melting the ice directly.
- http://www.cbsnews.com/8301-205_162-57559005/more-snow-could-mean-less-ice-for-antarctic/
- http://green.blogs.nytimes.com/2012/12/13/no-get-out-of-jail-free-card-on-sea-level/

The Weather Channel introduces index for rating winter storms
- First it gave them names, (that has received major scrutiny by other meteorologists) .....now it's assigning them numbers. In its continued aggressive push to help viewers identify and understand storms, the Weather Channel has unveiled a new numeric system for rating the impact of winter storms.
- Cities in the path of a winter storm will be assigned a number on a 1-10 scale based on a storm's disruptive potential.
- http://www.washingtonpost.com/blogs/capital-weather-gang/post/the-weather-channel-introduces-index-for-rating-winter-storms/2012/12/13/d529e600-44e2-11e2-9648-a2c323a991d6_blog.html#pagebreak

The Southern Hemisphere Tropical Cyclone Season Heats Up
- Category 2 Tropical Cyclone Evan is pounding Samoa and American Samoa with heavy rains and high winds, after making landfall earlier today on the north shore of Samoa near the capital of Apia.
- At landfall, Evan had top winds of 145 kph, but has since intensified to 170 hph (cat 2) winds. Media reports indicate that Evan has killed two, and brought a 12 - 15' storm surge, heavy rains, and severe damage to the island nation.

Temporary dam flood pauses hydro project North of Kapuskasing
- Engineers assessing when work on Lower Mattagami Hydro project can resume
- http://www.cbc.ca/news/canada/sudbury/story/2012/12/13/sby-kipling-hydro-dam-leak.html

Vancouver Weather

Tuesday

Chance of showers

14°C

Wednesday

Rain

13°C

Thursday

Showers

11°C

Friday

Rain

11°C

Saturday

Periods of rain

13°C