Early next week, Whatcom County could be in for a flurry of frost, showers and light snow. Long-range forecasts from the National Weather Service in Seattle show a cool air mass forming over the Pacific Northwest.
In the north, Environment Canada is predicting frost as early as the evening of Sunday, November 27. with a 60% chance of rain or snow for Vancouver, British British America. Overnight temperatures are forecast to stay below freezing, with a chance of snow on Tuesday 29 November and another 60% chance of flurries on Wednesday 30 November.
The National Weather Service’s long-range forecast in Seattle calls for temperatures in the mid to upper 30s Sunday night and Monday morning, Nov. 28. Snow is forecast to fall between 300 and 800 feet along with rain Monday morning.
While the weather is expected to turn dry after Monday morning, temperatures are forecast to be below freezing Monday night and Tuesday morning as an area of low pressure, or trough, moves south of British Columbia along the coast.
“However, the integrated guidance does not exactly match the trough’s trajectory, with slight fluctuations leading to widely varying results, especially with any warming as the onshore flow increases,” the National Weather Service in Seattle said in a long-range forecast. “Despite this uncertainty, management continues to highlight this period for the best potential for lowland snow accumulation next week.”
