As I have been following for the past several days, a low pressure system will cross the SW part of the province just to the west of Halifax tomorrow. It now appears that warmer air will make its way into the area allowing the snow to turn to rain for a few hours before colder air returns and the rain turns back to snow. Because of the change over snowfall amounts will be in the 5 - 10 cm range. Heavier snow can be expected to the east of Halifax, where Environment Canada has issued a Snowfall Warning. Any deviation in the track of the system will result in changes in accumulation. It will interesting to see what the 00z model runs show.
On Wednesday high pressure builds over the region, while on Thursday the low preesure system we have been watching passes to our south. Model runs keep flipping on this system bringing it closer then further off the coast. They seem to be having dificulties handling the ridge of high pressure.
On Friday that ridge will move off to our east and a low will pass to our west on Saturday allowing warm air to flood in and giving us a rain maker.
The forecast for Halifax:
Tonight snow beginning later this evening. L -5
Tuesday Snow changing to rain in the morning then back to snow in the afternoon. H 2
Wednesday a mix of sun and cloud. L -7 H -3
Thursday light snow. L -10 H -4
Friday mainly cloudy. L -5 H 2
Saturday periods of rain. L -4 H 6
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