More temperature fluctuations as systems roll through

A lot of us avoided the worst of this past weekend’s fall storm, but parts of eastern Nova Scotia along with Newfoundland were battered with wind gusts up to 100-plus km/h. It was also mild for most, but temperatures have since fallen and are aiding in the development of some sea-effect flurries and snow squalls over eastern N.S., northeastern Prince Edward Island, and parts of Newfoundland. This activity will wind down as a ridge of highpressure moves overhead, but it isn’t sticking around, which will allow a low-pressure system to move across the region mid-week. Precipitation will arrive in the western halves of N.S. and New Brunswick late Wednesday afternoon and evening, spreading eastward across both provinces and P.E.I. Wednesday night into Thursday, then across Newfoundland and Labrador late Thursday to Friday morning. Rain is forecast for N.S., southern N.B., P.E.I., and most of Newfoundland, but some wet snow is possible ahead of it. Mostly snow is forecast for northern N.B., parts of northwestern Newfoundland, and into Labrador. Guidance on Monday indicated rain and snowfall won’t be significant, although some models predict 30 to 50-plus mm of rain along Nova Scotia’s Atlantic coast. Locations receiving snow could accumulate five to 10-plus cm over higher terrain. Peak wind gusts between 40 and 70 km/h are forecast, with higher Les Suêtes and Wreckhouse gusts possible. It will turn cooler again for the final weekend of November, but there’s hope the weather will be calmer. Most models keep sunshine in the mix with just isolated flurries. One model tries to bring a system into our region later this weekend, but it’s an outlier right now. I’ll keep a close eye on the forecast. Allister Aalders is the Saltwire weather specialist.