Saturday, November 06, 2010

Weekend Update

Clouds, drizzle and fog broke for a minute or two in Williston, Vermont to allow for a spectacular sunset Friday evening. ValleyWX

Skies have rapidly cleared out this morning behind that coastal storm and temperatures have responded by dropping below freezing in Montreal at minus 2C. Across Vermont and the Townships, clouds remain in place and temperatures are slightly warmer. You have to go much further east to encounter any precipitation. The low pressure in question is over Atlantic Canada with any heavy rain confined to that region. Meanwhile in the broader circulation of this system, some wet snow is falling in the snow belts of the Great Lakes and as far south as the North Carolina mountains. Some regions in the most persistent snow across central Ontario, Michigan and northern Indiana had as much as 3 inches of wet snow.

The rainfall was steady but light in our area yesterday with around 15mm in Montreal. The rain was much heavier across Nova Scotia where upwards of 100mm has fallen with more expected. A plume of moisture is running from the tropics straight into Nova Scotia. Another 50 to 80mm are possible with warnings in place. Pounding surf is also affecting coastal regions. The moisture is part of Tropical Storm Tomas that has been dropping copious amounts of rain on Haiti and the Turks and Cacaos. Flooding is occurring in earthquake devastated Port au Prince.

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