St. John Valley weather for April 21-27
Clouds are on the increase this morning as a strong low pressure area tracking towards Maine from the Mid-Atlantic approaches with rain spreading across the Valley by the afternoon.
Rain continues into the evening hours before colder air wrapping around the low changes precipitation to all snow overnight into Thursday as the low tracks across the interior Downeast region into New Brunswick by early Thursday morning. Snow is expected to continue Thursday into Thursday night with heaviest snowfall occurring along the Maine/Québec border with lower amounts west to east.
Snowfall amounts in the 12- to 18-inch range around Estcourt Station and 8 to 12 inches along the western border. Fort Kent, Madawaska and surrounding areas will have 6 to 8 inches possible Grand Isle, Van Buren, and surrounding locations stand to pick up 3 to 4 inches of snowfall. A winter weather advisory has been issued for northern Maine from Wednesday afternoon through early Thursday morning.
The low pressure area will slowly drift towards the Gaspé by early Friday then move northeast away from the region as the day progresses.. The associated upper-level low pressure area will remain across the Valley Friday with snow showers changing to all rain by the afternoon which become less widespread overnight into Saturday as the low continues to move away. Windy west/northwest winds will persist Thursday through Friday afternoon with areas of blowing snow possible, especially Thursday night. Clouds will diminish Friday night into Saturday as drier air moves into the SJV.
Wednesday, April 21
Increasing clouds in the morning with rain by midday continuing through the afternoon. 100 percent chance for precipitation with around 1/4-inch rainfall expected with less than 1-inch snowfall. High around 40 degrees with southwest winds 5 to 10 mph becoming northeast in the afternoon 0 to 5 mph.
Wednesday night, cloudy with a 100 percent chance for rain and snow in the evening becoming all snow overnight. Precipitation totals between 1/2 and 3/4-inch with around 2-inches of snow possible. Low near 32 degrees with north winds around 5 mph shifting to the northwest and increasing to 5 to 10 mph by early Thursday morning.
Thursday, April 22 / Earth Day
Cloudy with a 100 percent chance for snow. Precipitation totals between 1/4 to 1/2-inch with around 2-inches of snowfall. High near 35 degrees F. Northwest winds 15 to 20 mph become west 15 to 20 mph gusting 25 to 35 mph.
Thursday night, cloudy with a 90 percent chance for snow. Precipitation totals in the 1/10 to 1/4-inch range with snowfall totals up to 2-inches possible. Low around 28 degrees with west winds around 15 to 20 mph gusting 25 to 35 mph.
Friday, April 23
Cloudy in the morning then mostly cloudy in the afternoon with a 60 percent chance for morning snow changing to rain showers. Precipitation totals less than 1/10-inch. High near 45 degrees with west winds 15 to 20 mph gusting 25 to 35 mph.
Friday night, partly cloudy with a 20 percent chance for rain showers. Low around 33 degrees with west/northwest winds 5 to 10 mph.
Medium Range Outlook: Saturday -Tuesday
High pressure brings partly cloudy to mostly sunny skies and milder conditions Saturday and Saturday night. A cold front approaches from the west Sunday with rain expected by the afternoon continuing into early Monday morning before tapering to rain showers under mostly cloudy skies. Rain and snow showers overnight into Tuesday end as drier air moves into the Valley as high pressure builds across the region.
Saturday, April 24
Partly cloudy with a high near 54 degrees F. Northwest winds around 10 to 15 mph.
Saturday night, partly cloudy with a 20 percent chance for precipitation. Low near 32 degrees with southerly winds 0 to 5 mph.
Sunday, April 25
Increasingly cloudy in the morning then mostly cloudy in the afternoon with a 60 percent chance for rain with 1/10 to 1/4-inch possible. High near 54 degrees with southeast winds 10 to 15 mph.
Sunday night, mostly cloudy with a 60 percent chance for rain. Rainfall amounts in the 1/4 to 1/2-inch range. Low around 35 degrees with northeast winds in the 5 to 10 mph range.
Monday, April 26
Mostly cloudy with a 30 percent chance for rain showers. Rainfall totals in the 1/10 to 1/4-inch range. High around 50 degrees with north/northwest winds 10 to 15 mph.
Monday night, partly cloudy with a 20 percent chance for precipitation. Less than 1/10-inch expected. Low near 33 degrees with northwest winds 5 to 10 mph.
Tuesday, April 27
Partly sunny with a 10 percent chance for morning rain/snow showers. High around 53 degrees with northwest winds 10 t0 15 mph.
Tuesday night, partly cloudy with a 10 percent chance for precipitation. Low near 35 degrees with northwest winds 0 to 5 mph.
Long-Range Trends: Wed. Apr. 28 – Tue. May 4
Above normal temperatures / Normal to above normal precipitation
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.