St. John Valley Weather for Jan. 17-22, 2019

A ridge of Arctic high pressure will quickly move across the region Thursday and eastwards tonight. An area of low pressure near the Great Lakes Thursday night will slide east/northeast into Québec overnight producing snow and snow showers across the Valley Friday. A cold front trailing from the Canadian low will cross the region later Friday with more Arctic air blasting the region Saturday and Saturday night. A major Nor’easter is expected to bring abundant snow (and icy conditions along the coast) to the state Sunday with accumulation totals in excess of 12 inches for most Valley locations. Snow tapers off Monday with another batch of Arctic air building into the Valley Monday into Tuesday.

Daily Weather Summary

(Data for Wednesday, Jan. 16, was unavailable due to technical issues.)

Thursday, January 17: High: near/just above 0. Low: near 5 below.
Mostly clear. Northwest winds shift to the west 5 to 10 mph. Wind chill values 15 to 25 below in the morning hours. Thursday night, increasing clouds with a 20 percent chance for snow after midnight. South/southwest winds near 5 mph with wind chill values 15 to 20 below tonight.

Friday, January 18: High: mid-10s. Low: near 10 below.
Cloudy with a 60 percent chance for snow tapering off in the afternoon with light accumulations around 1 inch expected. Highs in the mid-10s with south winds 5 to 10 mph. Wind chill values 10 to 15 below. Friday night, considerable cloudiness early then thinning clouds after midnight. Northwest winds after midnight 10 to 15 mph with gusts to 25 mph, especially over higher terrain. Wind chill values 25 to 30 below.

Saturday, January 19: High: near 5 below. Low: 15 to 20 below.
Mostly clear to partly cloudy and very cold. Northwest winds 5 to 10 mph producing wind chill values 20 to 30 below zero. Saturday night, increasing clouds with a 50 percent chance for snow after midnight. North winds 0 to 7 mph.

Sunday, January 20: High: near 5 above. Low: near 5 below.
Cloudy with a 100 percent chance for snow. Accumulations 12+ inches possible. Northeast winds 8 to 14 mph. Sunday night, cloudy with a 90 percent chance for snow. North winds 8 to 14 mph.

Monday, January 21: High: near 7 above. Low: 5 to 10 below.
Cloudy with a 40 percent chance for snow in the morning tapering to snow showers. North/northwest winds 8 to 14 mph. Monday night, mostly cloudy with a 20 percent chance for snow showers. Northwest winds 8 to 14 mph.

Tuesday, January 22: High: low 10s. Low: near 0.
Partly cloudy and cold with west winds 8 to 14 mph. Tuesday night, partly cloudy with a 40 percent chance for snow after midnight. Southwest winds 0 to 7 mph.

Note: Computer model precision diminishes the further into the week the forecast projects. Check the Fiddlehead Focus for weather updates with more current information.

The Week Ahead is the work of UMFK Professor Joseph E. Becker based on personal weather station data, various computer forecast models, and information that the National Weather Service, NOAA, and other weather resources provide.

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