Windchill between -45 C to -55 C (-49 F to -67 F) across most of northern Manitoba. Blizzards forcast in some areas as snowfall moves east.
12 Dec 2016 – Extreme Cold Warning for Dease Lake region
Temperatures near minus 35 C (31 F) combined with northerly winds are expected to give wind chill values of minus 45 C (-49 F) overnight and Tuesday morning in Dease Lake.
Extreme Cold Warning for Chilcotin region
Temperatures near or below minus 30 C (-22 F) combined with northerly winds near 15 km/h (9.3 mph) will lead to wind chill values below minus 40 C (-40 F) overnight into Tuesday morning. The potential for extreme cold wind chill values in the mornings continues throughout the week.
Extreme Cold Warning for Yoho Park – Kootenay Park region
Temperatures near minus 25 C (-13 F) combined with westerly winds near 20 km/h (12.4 mph) will bring wind chill values below minus 35 C (-31 F) overnight into Tuesday morning.
Arctic outflow warning for Central Coast – inland sections and North Coast – inland sections
Wind chill values of minus 20 C to 25 C (-4 F to -13 F) will continue tonight through Friday.
http://weather.gc.ca/warnings/report_e.html?bc37#911081882005494413201612060502ww1171cwvr(and bc9 in the address link for the North Coastal area)
Arctic outflow warning for Howe Sound and Whistler regions
Wind chill values of minus 20 C to minus 25 C (-4 F to -13 F) can be expected.
Arctic outflow conditions will redevelop on Tuesday night.
http://weather.gc.ca/warnings/report_e.html?bc41#800367991933668512201612120502ww1171cwvr(and bc39 in the address link for the Whistler warning)
Extreme Cold Warning for Brochet, Churchill, Gillam, Leaf Rapids, Lynn Lake, Pukatawagan, Shamattawa, Tadoule Lake, Nelson House, South Indian Lake and Amisk Prov. Park, Split Lake and York Landing, Thompson Thicket Portage and Pikwitonei and York regions
Temperatures below -30 C and increasing winds will bring windchill values between -45 C to -55 C (-49 F to -67 F) tonight across most of northern Manitoba.
http://weather.gc.ca/warnings/report_e.html?mb34#1806147421558884325201612110501ww1272cwwg(also mb36, mb30, mb33, mb29, mb35, mb31 and mb37 in the address link for the other affected areas)
Snowfall warning for Acadian Peninsula, Bathurst and Chaleur Region, Campbellton and eastern half of Restigouche County, Miramichi and area, Moncton and Southeast New Brunswick and Mount Carleton – Renous Highway regions
Total snowfall amounts of 15 to 20 centimetres (5.9″ to 7.9″) can be expected.
http://weather.gc.ca/warnings/report_e.html?nb4#181004627296176557201612110506ww1474cwhx(also nb3, nb2, nb7, nb16 and nb6 in the address link for the other affected areas)
NEWFOUNDLAND AND LABRADOR
Winter storm warning for Avalon Peninsula North, Avalon Peninsula Southeast, Avalon Peninsula Southwest, Bonavista Peninsula, Burin Peninsula, Clarenville and vicinity, St. John’s and vicinity and Terra Nova regions
Hazardous winter conditions are expected.
Snow, at times heavy, will spread north tonight and continue through Tuesday before tapering to flurries Tuesday night. Total accumulations of 15 to 20 cm (5.9″ to 7.9″) are expected. This snow will combine with strong winds to give reduced visibilities in blowing snow on Tuesday, especially during the morning commute.
http://weather.gc.ca/warnings/report_e.html?nl28#70330273153582916201612120507ww1676cwhx(also nl11, nl29, nl15, nl5, nl1, nl21 and nl16 in the address link for the other affected areas)
Snowfall warning for Colchester County North, Cumberland County North and Cobequid Pass, Inverness County – Mabou and north, Inverness County – south of Mabou, Richmond County, Sydney Metro and Cape Breton County and Victoria County regions
An additional 5 to 10 centimetres (2.0″ to 3.9″) of snow is expected over parts of northwestern Nova Scotia as well as Cape Breton this evening before tapering to flurries or showers.
http://weather.gc.ca/warnings/report_e.html?ns15#18284139425367173201612110506ww1171cwhx(also ns14, ns22, ns21, ns20, ns19 and ns23 in the address link for the othet affected areas)
Freezing rain warning for Annapolis County, Hants County and Kings County regions
http://weather.gc.ca/warnings/report_e.html?ns8#21247746780849457201612130506ww1171cwhx(also ns10 and ns9 in the address link for the other affected areas)
Extreme Cold Warning for Kugaaruk region
Strengthening winds this evening combined with very cold temperatures will cause extreme wind chill values near -55 C (-67 F) overnight tonight.
Blizzard warning for Chesterfield Inlet and Rankin Region including Whale Cove regions
Poor visibility occasionally near zero.
A developing low pressure system over western Hudson Bay will cause a blizzard to develop this evening at Chesterfield Inlet, Rankin Inlet, and Whale Cove. Increasing northeasterly winds to 60 gusting 80 km/h (37.3 to 49.7 mph) will produce very poor visibilities in snow and blowing snow into Tuesday. Gusts exceeding 90 km/h (55.9 mph) are possible on Tuesday as well.
http://weather.gc.ca/warnings/report_e.html?nu24#943218191243523475201612120501ww1373cwnt(also nu1 in the address link for the Rankin Region warning)
Extreme Cold Warning forFort Severn region
Bitterly cold arctic air is expected wrap around the southwestern shores of Hudson Bay tonight. Temperatures in the low minus thirties combined with west winds of 10 to 20 km/h (6.2 to 12.4 mph) are expected to produce windchill values near minus 45 C (-49 F) or colder. These conditions are expected to persist into Wednesday.
PRINCE EDWARD ISLAND
Snowfall warnings continue with amounts to 10 cm (3.9″).
Snowfall warning for Amqui area, Matapédia area, Baie-Comeau, Lac-Etchemin area, Saint-Georges-de-Beauce area, Sainte-Marie-de-Beauce area, Brome-Missisquoi area, Coaticook area, Cookshire area, Granby – Waterloo area, Lac-Mégantic area, Mont-Orford – Lake Memphrémagog area, Richmond area, Sherbrooke area, Thetford Mines area, Weedon area, , Forillon National Park – Gaspé area, Percé area, Grande-Rivière – Cascapédia area, Mont-Albert area, Murdochville area, Kamouraska area, Pohénégamook area, Rivière-du-Loup area, Trois-Pistoles area, Matane, Montmagny – Saint-Jean-Port-Joli area, Saint-Fabien – Saint-Pamphile area, Chandler area, New Carlisle – Port-Daniel area, New-Richmond – Bonaventure area, Restigouche – Carleton area, Le Bic – Rimouski area, Mont-Joli area, Rimouski Wildlife Reserve area, Grande-Vallée area, Sainte-Anne-des-Monts area, Baie-Trinité area and Témiscouata regions
A total of 15 to 25 centimetres (5.9″ to 9.8″) of snow is expected until midday Tuesday.
Another 5 cm (2.0″) of snow is expected over the Eastern Townships and Beauce areas; the snow will taper off this evening.
http://weather.gc.ca/warnings/report_e.html?qc31#195233070522940303201612110504ww1070cwul(also qc40, qc44, qu43, qc38, qc34, qc28, qc32, qc48, qc36, qc35, qc30, qc33, qc23 and qc29 in the address link for the other affected areas)
Extreme Cold Warning for Wollaston Lake – Collins Bay region
Wind chill values near -45 C (-49 F) tonight. Temperatures near -45 C through Tuesday and into Wednesday morning.
Thanks to Terry Homeniuk for these links