Steve's WunderBlog

Canadian Weather Blog #9

Posted by: SteveDa1, 06:16 PM GMT del 11 Dicembre 2006

Once again BC is the center of attention as is usually the case this time of year...

BC storm parade:
A lot of rain and wind this week for the west coast. A series of storms will slam the coast bringing heavy rains and strong winds with heavy mountain snow; great for skiers!
Of course this isn't anything unusual, it's that time of year where it just rains and rains. The first storm is already bringing rain, snow and winds to BC. The second one, which will be stronger than the first, will come ashore on wednesday morning. A third one is still developping and is expected to reach the coast later this week. Figure 1 shows a satellite image of the northeastern Pacific and I have marked the storms centers with a small red square. The systems don't just decipate once they reach BC, obviously, they travel across the country bringing unsettled weather with it. Once these storms cross the rockies, however, they lose much of their power... This Pattern also brings mild weather across the whole country as shown in Figure 2 with the CMC 10-day mean temperature forecast. If you look at my last update, more models are shown. Only exception to that is BC because of the constant cloud cover due to storms.

Figure 1 (Sattelite image showing storms in northeastern Pacific):

Figure 2 (10-day mean temperature forecast for Canada (CMC)):

Montreal Forecast from Environment Canada:
Today: Cloudy. High plus 4.
Tonight: Cloudy. Clearing overnight. Low minus 8.
Tuesday: Sunny with cloudy periods. Wind northeast 20 km/h becoming: light late in the day. High zero.
Wednesday: Showers. Low minus 3. High 6.
Thursday: Cloudy. Low plus 2. High 6.
Friday: Periods of rain. Low zero. High plus 3.

Toronto Forecast:
Today: Cloudy. High 7.
Tonight: Cloudy. 60 percent chance of showers overnight. Low plus 3.
Tuesday: Cloudy with sunny periods. 60 percent chance of showers early in the morning. Wind east 20 km/h becoming south 20 late in the day. High 8.
Wednesday: Showers. Windy. Low plus 1. High 8.
Thursday: Cloudy. Windy. Low plus 2. High 6.
Friday: Cloudy with 60 percent chance of showers. Low plus 3. High 7.

Figure 3 (British Columbia Warnings):

PURPLE = Wind warning
RED DOTTED PURPLE = Wind and Rainfall Warning
Wind expected to reach 70-80 km/h with gusts up to 100 km/h. Rainfall expected to be more than 50mm in warning areas with this storm.

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1. snowboy 09:29 PM GMT del 11 Dicembre 2006
Hey thanks for the update. Tempeatures across Canada (even the high Arctic) are way above normal, but there are increasing signs of a gradual cool down commencing in the arctic later this week and working its way south next week. Am hoping for a white Christmas, and as yet it is at least theoretically possible (assuming week get snow once it cools down again).. Member Since: Settembre 21, 2005 Posts: 10 Comments: 2546

2. SteveDa1 09:48 PM GMT del 11 Dicembre 2006
I will probably get a white christmas because I'll be at my mom's from the 20th to the 30th of December. She lives in the laurentians and there is a 100% chance that there will be snow on the ground. I don't know about here though (Montreal). Member Since: Ottobre 17, 2006 Posts: 59 Comments: 1057

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