From

Ryan Snoddon

  • SUNDAY EVENING UPDATE
    It appears seat belt fastening is in order for the Southern half of Newfoundland.
    -There's been some shifting in the afternoon model runs, however Monday-Tuesday still looks like messy mix of significant Snow & Ice Pellets for the Southern portion of the Island, with the potential for 30-50+ cm in the heaviest hit areas by Wednesday morning.
    -As mentioned this morning, the 'Northern edge' of where the heaviest precipitation will fall may be one of the toughest parts of this forecast to nail down. The latest Canadian models have edged things a bit further North, getting places like Corner Brook through Central & across to Terra Nova & Bonavista into a bit of the Snow action Monday night into Tuesday morning. Meanwhile the Euro & GFS are continue to keep things further South. With all that in mind, from Stephenville & the Port au Port across the interior to Clarenville and the Northern Avalon Peninsula, including Metro and areas to the South of that line of are likely going to bare the brunt of this slowly moving system, with amounts dropping off quickly as you move Northward.
    -Snow is already pulling into the Southwest Coast tonight and will slowly spread Eastward over the next 12-18 hours, arriving in St. John's Metro by Monday afternoon.
    -By Tuesday Morning, that line from Stephenville across to Clarenville to Metro & areas South could be looking at totals ranging from 20-30 cm of Snow & Ice Pellets with the heaviest amounts and best chance of 30+ along the South Coast. Again, given the shifting we've been seeing and sharp boundaries with this Storm, stay tuned for any updates on these totals.
    -The Storm continues to roll through on Tuesday and Tuesday night, but with more uncertainty given the fact that some forecast models are really bringing in the potential for a solid swath of Ice Pellets and possibly even some Freezing Rain to mix in, especially over the Burin & Southern Avalon Peninsulas, which will have an impact on amounts.
    -We'll see what the overnight forecast models have to say and I'll have updates here on the blog on Monday morning... but fasten those seatbelts... the next few days look like a 'bumpy' ride for many.
    Environment Canada has updated their Warnings and bulletins, check out Rodney's post below.
    Ryan
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