The human race must question everything!
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28 Nov 2013
Well, now that just about everyone has seen some November snowfall, it appears we may see our first real clipper type system of the season in parts of southern Ontario and Quebec.
Here's a look at the 12z NAM total snowfall for it:
Ottawa and Montreal do decently with 5-10cm.
12z GFS snowfall:
Much drier with general amounts of 2-5cm.
Hi-res NAM at hour 60:
Given the projected track, I'd say 2-5cm is a decent possibility in Ottawa and Montreal with perhaps up to 8cm. For Toronto area and further south it looks like more of a wet snow with the low tracking to the north and general amounts of a trace-3cm are more likely at this point.
21 Nov 2013
Well, I think no one has created this thread for fear of it not coming true, but I think it's silly to be posting all those images about this storm in the fall thread so here it is.
Here are some relevant images that haven't been posted (recently) in the fall thread:
12z UKMET at hour 144:
PNA, NAO, WPO and EPO forecasts:
Of course, there are many more things to be posted, but thought this was a good start.
2 Apr 2013
Well, we might be into spring, both astronomically and meteorologically, but winter is still holding a firm grip on parts of Eastern Canada (as well as Western parts too), which is not all that uncommon as Toronto does average 6cm in the month of April, and Ottawa averages about 10cm.
With that being said, a "Winter Storm" in the month of April is certainly a rarity in these parts, but again it has happening in the past and there have even been some pretty big snowstorms.
Currently, models are forecasting a low pressure system to merge out of the Rockies (coming ashore on the SW Canadian Pacific Coast) and then track SE before turning east and possibly cutting NE. Where this cut will occur will determine where the snowfall is. However, at this point I am fairly confident in saying that to the north of this system there will likely be a narrow but potentially intense band of snow as there will be a fairly solid and stubborn cold air-mass in place.
Here's a look at the 12z GFS snowfall map for this storm:
USA_ASNOW72_sfc_144.gif ( 32.08K ) Number of downloads: 2
As you can see, a bit too far north for Toronto and areas further south, but a decent snow event (for April) for Ottawa ENE to Quebec City.
I will post more model images soon.
5 Feb 2013
Snow squall watch up for Toronto with a warning up or regions further east. Could see some local amounts of 5-15cm.
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