Thursday, December 9, 2010

Today into Friday, December 10th

UPDATE 5:54pm The latest NAM model run is giving waaay more precip than the earlier runs, due to a strengthened system. The GEM must be too, considering EC has put up a snowfall warning.

We can expect 15-20cm of snow by 8am tomorrow depending on the changeover from rain time. The heaviest stuff will end in the morning and then we'll get flurries through to Saturday morning with an occasional bit of heavier snow bringing the total to 25cm.

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Let's try this again :)


Today we'll get rain in the afternoon, a break, and then more rain starting this evening. The temperature will start to fall later this afternoon.
Snow will start overnight, as soon as the surface temperature gets near +1. My guess is between 1 and 2 am.

Today
Afternoon high :  7    [Rain]


Total rainfall : 10 mm [Range: 8 - 12]

Friday
Morning :             0      [Snow]
Afternoon high :   0     [
Snow]
Overnight low :   -3
    [Flurries]
Winds : 40-60 km/h
Total snowfall : 9 cm [Range: 5 - 20]
Total snowfall updated:  25 cm [Range: 20 - 30 cm]

Model used: NAM 

The snowfall range is big here. Expect about 9 cm by Saturday morning, but be prepared for up to 20 in the case that the rain changes to snow earlier or the big chunk of precipitation with this system, which right now looks to be offshore to our east, ends up further west.

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