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Astronomer

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    London, Ontario, Canada (half-way between Detroit & Buffalo NY)

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  1. Just added. Blizzard warnings have been issued by Environment Canada: 1:30 PM EST Sunday 24 February 2019 Blizzard warning in effect for: Barrie - Collingwood - Hillsdale Midland - Coldwater - Orr Lake Bayfield Inlet - Dunchurch Bruce Peninsula - Sauble Beach - Tobermory Hanover - Dundalk - Southern Grey County Owen Sound - Blue Mountains - Northern Grey County Saugeen Shores - Kincardine - Southern Bruce County Goderich - Bluewater - Southern Huron County Wingham - Blyth - Northern Huron County Port Carling - Port Severn Town of Parry Sound - Rosseau - Killbear Par Dangerous snow squalls with blizzard conditions developing later today. Temperatures will plummet through the day behind a strong cold front. Snow squalls will develop later this afternoon and combine with very strong westerly winds with gusts of 90 to 110 km/h to produce near zero visibility at times. The most hazardous conditions are expected tonight, but will improve Monday as winds weaken. It should be emphasized that the most significant aspect of this event will be from the very poor visibility and high winds and not from the snowfall accumulations. Total snowfall accumulations of 5 to 15 cm are likely by Monday. Road closures are possible. Consider postponing non-essential travel until conditions improve. If you do travel and become lost, remain where you are until the blizzard has passed. Public Safety Canada encourages everyone to make an emergency plan and get an emergency kit with drinking water, food, medicine, a first-aid kit and a flashlight. Blizzard warnings are issued when widespread reduced visibilities of 400 metres or less are expected for at least 4 hours. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.
  2. Temperature fell here from 7°C to 2°C pretty quickly. We just had a burst of heavy flurries. Barometric pressure is 989.
  3. Pressure has fallen to the lowest I've seen it over my home in a long time, and still falling.
  4. The pressure is the lowest I've seen it in quite a while (from my weather station)
  5. 3 Day Significant Weather Outlook for Ontario for 2019-02-24 from EC Sunday… A major winter storm affecting all but western parts of Northwestern and Far Northwestern Ontario, with accumulating snow, freezing rain, blowing snow and blizzard conditions in some areas. Freezing rain will also affect parts of central and Eastern Ontario. Major windstorm for Southern Ontario. Power outages likely. Significant impacts on transportation across most of the province. Refer to the plethora of warnings and advisories in effect. Maximum wind gusts will rival the wind gusts from the windstorm of 04-May-2018. Sunday Night.. Ongoing winter storm, blizzard, and wind warnings across much of the province. Blowing snow and snow squalls an issue across much of Southern Ontario. Extreme cold likely across parts of Far Northern Ontario. Ongoing major impacts on transportation. Power outages possible. Refer to the plethora of warnings and advisories in effect. Winds though are expected to slowly start to diminish somewhat overnight. Monday… Strong winds, snow and blowing snow ease off over Northeastern and Southern Ontario. Ongoing impacts on transportation should also improve. Any remaining warnings are expected to come to an end during the day. Outlook for Tuesday… No significant weather is expected. I nicked the image from the American forum:
  6. 3 Day Significant Weather Outlook for Ontario for 2019-02-23 from Environment Canada Saturday... No significant weather is expected. Saturday Night... Accumulating snow over parts of Northeastern Ontario, North of Superior and Superior West. A band of freezing rain will move across Southern portions of Northeastern Ontario and parts of Central and Eastern Ontario. Winter Storm Warnings, Freezing Rain Warnings and Travel Advisories are in effect. Additional Freezing Rain warnings will likely be required. Sunday…A major winter storm will track through Northeastern Ontario. Freezing rain will likely be ongoing for parts of Northeastern, Central and Eastern Ontario. A swath of 20 to 30 centimetres of snow is likely for portions of Northern Ontario from Lake Superior to James Bay. Damaging wind gusts of 90 to 120 km/h are possible over portions of Northeastern and Southern Ontario, especially near the Great Lakes. Blowing snow producing very low visibilities will affect much of the province southeast of a line from Thunder Bay to Moosonee as winds away from the Great Lakes will likely gust from 60 to 80 km/h. Major impacts on transportation include icing on roads, quickly accumulating snow on roads, blowing snow creating whiteout conditions, and strong winds buffeting high profile vehicles. Power outages are likely. Wind Warnings and blowing snow advisories are likely. Outlook for Monday… Strong winds, snow and blowing snow ease off over Northeastern and Southern Ontario. Ongoing impacts on transportation should also improve. Any remaining warnings are expected to come to an end during the day.
  7. From https://www.windfinder.com/#8/43.5645/-79.4037/2019-02-24T21:00Z Sustained winds (doesn't include gusts) This is going to be one heck of a powerful wind storm. Put away or tie down anything that's loose. I'll be planning for a possible power outage.
  8. 3 Day Significant Weather Outlook for Ontario for 2019-02-22 from Environment Canada: Friday and Friday night… No significant weather is expected. Saturday...There is a risk of freezing rain over portions of Northeastern, Central and Eastern Ontario Saturday night. Outlook for Sunday…A major winter storm will track through Northeastern Ontario on Sunday. Freezing rain is likely for parts of Northeastern, Central and Eastern Ontario. A swath of 15 to 25 cm of snow is likely for portions of Northern Ontario from Lake Superior to James Bay. Damaging wind gusts of 90 to 110 km/h are possible over portions of Northeastern, Central and Southwestern Ontario along with the Golden Horseshoe, especially near the Great Lakes. Blowing snow producing very low visibilities will affect much of the province southeast of a line from Thunder Bay to Moosonee as winds away from the Great Lakes will likely gust from 60 to 80 km/h. Impacts on transportation include icing on roads, quickly accumulating snow on roads, blowing snow creating whiteout conditions, and strong winds buffeting high profile vehicles. ============================== 6:59 PM EST Friday 22 February 2019 Special weather statement in effect for: Belleville - Quinte West - Eastern Northumberland County Cobourg - Colborne - Western Northumberland County City of Hamilton City of Toronto Dunnville - Caledonia - Haldimand Rodney - Shedden - Western Elgin County St. Thomas - Aylmer - Eastern Elgin County Burlington - Oakville Halton Hills - Milton Mississauga - Brampton Goderich - Bluewater - Southern Huron County Listowel - Milverton - Northern Perth County Stratford - Mitchell - Southern Perth County Wingham - Blyth - Northern Huron County Kingston - Odessa - Frontenac Islands Napanee - Consecon Picton - Sandbanks Park London - Parkhill - Eastern Middlesex County Strathroy - Komoka - Western Middlesex County Niagara Falls - Welland - Southern Niagara Region St. Catharines - Grimsby - Northern Niagara Region Brantford - County of Brant Woodstock - Tillsonburg - Oxford County Sarnia - Petrolia - Western Lambton County Watford - Pinery Park - Eastern Lambton County Simcoe - Delhi - Norfolk Guelph - Erin - Southern Wellington County Kitchener - Cambridge - Region of Waterloo Chatham-Kent - Rondeau Park Windsor - Leamington - Essex County Major wind storm likely Sunday and Sunday night. Damaging winds with frequent gusts of 90 to 110 km/h are expected to develop Sunday morning after the passage of a sharp cold front. Areas near the Great Lakes are more likely to experience winds at the higher end of this range. A few gusts may reach 120 km/h near the east end of Lake Erie and over Prince Edward County near Lake Ontario. The very strong winds will persist through Sunday night and gradually diminish on Monday. Damage to buildings, such as to roof shingles and windows, may occur. Power outages are also possible. In addition flurries and blowing snow will develop Sunday afternoon. Local snowfall amounts in the 2 to 5 cm range are possible by Monday morning. Any fresh snow that falls will be whipped up by the very strong winds creating whiteout conditions in blowing snow at times. Visibility may be significantly and suddenly reduced to near zero resulting in dangerous winter driving conditions. Wind warnings will likely be issued this weekend as this event draws closer. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm. ================================ 7:03 PM EST Friday 22 February 2019 Special weather statement in effect for: Deep River - Whitney - Eastern Algonquin Park Western Algonquin Park - Lake of Two Rivers Bancroft - Hastings Highlands - Denbigh Kaladar - Bannockburn - Bon Echo Park Brockville - Prescott Gananoque - Mallorytown Merrickville-Wolford - Kemptville Westport - Charleston Lake South River - Burk's Falls Ottawa North - Kanata - Orléans Ottawa South - Richmond - Metcalfe Cornwall - Lancaster Maxville - Alexandria Morrisburg - Long Sault Winchester - Newington Haliburton - Minden - Southern Haliburton County Oxtongue Lake - Fort Irwin - Northern Haliburton County Burlington - Oakville Halton Hills - Milton Mississauga - Brampton Prescott and Russell Barry's Bay - Killaloe Petawawa - Pembroke - Cobden Renfrew - Arnprior - Calabogie Plevna - Sharbot Lake - Western Lanark County Smiths Falls - Perth - Eastern Lanark County Stirling - Tweed - Madoc Tamworth - Sydenham - South Frontenac Late winter storm with freezing rain Saturday night into Sunday morning then strong winds with some snow and blowing snow Sunday night into Monday morning. Precipitation associated with a strong low pressure system may begin as snow overnight Saturday night or early Sunday morning but is expected to quickly transition to freezing rain or ice pellets and then to rain by Sunday afternoon. Surfaces such as highways, roads, walkways and parking lots may become icy and slippery. The precipitation is then expected to change back to snow late Sunday afternoon or Sunday evening. The latest analysis suggests total snow and ice pellet accumulations in the 2 to 5 cm range by Monday morning. In addition, strong winds will develop Sunday evening with gusts to 70 km/h possible Sunday night into Monday afternoon resulting in very poor visibility in blowing snow. Visibility may be significantly and suddenly reduced to near zero making travel dangerous. Freezing rain warnings may be required as this event draws closer. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm. ========================== 7:00 PM EST Friday 22 February 2019 Special weather statement in effect for: Barrie - Collingwood - Hillsdale Midland - Coldwater - Orr Lake Orillia - Lagoon City - Washago Bayfield Inlet - Dunchurch Innisfil - New Tecumseth - Angus Orangeville - Grand Valley - Southern Dufferin County Shelburne - Mansfield - Northern Dufferin County Hanover - Dundalk - Southern Grey County Owen Sound - Blue Mountains - Northern Grey County Caledon Bracebridge - Gravenhurst Huntsville - Baysville Port Carling - Port Severn Town of Parry Sound - Rosseau - Killbear Park Apsley - Woodview - Northern Peterborough County Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes Lindsay - Southern Kawartha Lakes Peterborough City - Lakefield - Southern Peterborough County Mount Forest - Arthur - Northern Wellington County Newmarket - Georgina - Northern York Region Uxbridge - Beaverton - Northern Durham Region Major late winter storm with freezing rain Saturday night then damaging winds and blowing snow Sunday. Precipitation associated with a deepening low pressure system may begin as freezing rain Saturday evening before changing to rain overnight or Sunday morning. Surfaces such as highways, roads, walkways and parking lots may become icy and slippery. Damaging winds with gusts to 90 to 110 km/h are expected to develop by Sunday afternoon. Areas near the Great Lakes are more likely to experience winds at the higher end of this range. The strong winds will persist through Sunday night and gradually weaken on Monday. In addition, flurries and blowing snow will develop Sunday afternoon. Local snowfall amounts in the 5 to 10 cm range are possible by Monday morning. Any fresh snow that falls will be whipped up by the very strong winds creating whiteout conditions at times. Visibility may be significantly and suddenly reduced to near zero making travel dangerous. Damage to buildings, such as to roof shingles and windows, may occur. Power outages are also possible. Freezing rain and wind warnings may be required this weekend as this event draws closer. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.
  9. I just came in from blowing out the driveway and walkways. A good 15cm+ landed in Mount Brydges. It's pretty much over and done with here. I'd call this one a pretty decent snowfall!
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