Canadian Weather: Massive Low over upper Midwest/ Ontario/ Manitoba - Canadian Weather

Jump to content

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

Massive Low over upper Midwest/ Ontario/ Manitoba Rate Topic: -----

#1 User offline   weatherpiper Icon

  • Meteorologist
  • PipPipPip
  • Group: Meteorologist
  • Posts: 43
  • Joined: 04-March 10
  • LocationSt. John's NL

Posted 26 October 2010 - 06:44 AM

Have you guys seen the massive low that is developing over the upper midwest? Models suggesting pressures near 970 mb to 960 mb with this low. Very windy out there as well. Storm force winds possible for the Lakes- pretty much all of them in the next few days. Cold air coming in on the backside will turn what remaining rain to snow. On the front side near the cold front and ahead in the warm sector tornadoes are possible... a slight chance I would say for southwestern Ontario, but the bulk is to the south.

Looks to be an interesting storm in this area.... of course this is like a drizzle for us here in Newfoundland :-P

#2 User offline   cumulusgranite Icon

  • Community Moderator
  • Icon
  • Group: Moderators
  • Posts: 3,995
  • Joined: 29-August 05
  • LocationSackville, NS

Posted 26 October 2010 - 04:01 PM

Yes, was looking at this (interesting to say the least) system.

The GOES 8 satellite shots are neat both the visual, vapour and IR.

Pressure gradients are tight on the west side of the system.

Should be interesting to see what 'spins' off this system on the next day or so.

"Who ever said weather is boring"............ :D
In all science, error precedes the truth, and it is better it should go first than last. ~Hugh Walpole

#3 User offline   Relliott Icon

  • Community Administrator
  • Icon
  • Group: Administrators
  • Posts: 8,885
  • Joined: 12-November 04
  • LocationWest Brooklyn MTN , Nova Scotia

Posted 26 October 2010 - 05:28 PM

Looks like some interesting weather for some :)

#4 User offline   dmi Icon

  • Community Moderator
  • Icon
  • Group: Moderators
  • Posts: 5,505
  • Joined: 05-August 04
  • LocationHalifax, NS

Posted 26 October 2010 - 08:47 PM

Here is a Special Weather Statement issued by EC for parts of Ontario.


...The wind will be howling over the next couple of days..As a
Pre-Halloween storm spooks the province...

A very deep and unseasonably intense storm over Northern Minnesota
will move into Northwestern Ontario tonight and the associated
weather will have far-reaching effects for many parts of the
Province

While significant rain and wind will affect Northern Ontario over
The next two days..A powerful and sharp cold front will sweep across
southern and Eastern Ontario tonight. The front is accompanied by
A line of heavier showers along with strong southwesterly winds of
50 gusting to 80 km/h. The front will reach the Barrie to Toronto
areas early this evening and reach the national Capital region near
midnight.

There is a chance that winds along and just after the front goes
through may gust briefly to 90 or 100 km/h especially if the frontal
passage is accompanied by a thunderstorm.

Strong and gusty southwesterly winds are expected across the
district on Wednesday in the wake of this front as the storm centre
moves slowly across Northern Ontario.

Motorists should exercise caution and be prepared for strong and
gusty winds which may make driving conditions quite difficult at
times.

Listen for further statements. Additional information
may also be found by consulting the latest public forecast.

END/OSPC



--------------------------------------------------------------------------------
Darren, Royale Hemlocks, Halifax, NS

http://halifaxweather.blogspot.com/

#5 User offline   dmi Icon

  • Community Moderator
  • Icon
  • Group: Moderators
  • Posts: 5,505
  • Joined: 05-August 04
  • LocationHalifax, NS

Posted 26 October 2010 - 11:38 PM

Backside of that low is producing heavy snowfall near the Manitoba/Saskatchewan border.



Virden - Souris
3:30 PM CDT Tuesday 26 October 2010
Winter storm warning for Virden - Souris
changed from Snowfall warning

Heavy snow, blowing snow, and very strong winds tonight and Wednesday.

This is a warning that dangerous winter weather conditions are imminent or occurring in these regions. Monitor weather conditions...Listen for updated statements.

A powerful storm system over Northern Minnesota this afternoon is moving slowly northeast. It has given 20 to 40 mm of rain already to much of Southern Manitoba since Monday afternoon. As of 3 PM, 35 to 45 mm had fallen in the past 24 hours from McCreary through Portage la Prairie, Morden, and Emerson. A further 15 to 30 mm is likely in these areas and as a result rainfalls are expected to be near and locally over the warning criteria of 50 mm in 24 hours or 75 mm in 48 hours. The rain will begin to taper off later on Wednesday as the precipitation mixes with snow and then ends Wednesday night.

Meanwhile near the Saskatchewan border, the rain has changed over to snow. This snowfall changeover will work its way eastward tonight, with 10 to 15 cm expected in most areas west of the Manitoba escarpment and possibly up to 25 cm over the higher elevations of the riding, duck, and Turtle Mountains. The snow is expected to continue overnight into Wednesday before tapering off from the west by evening. In addition to the snow, strong northerly winds gusting to 70 or 80 km/h will compound the situation with poor visibilities due to snow and blowing snow. This will be the season's first Major blast of winter weather over Southern Manitoba so residents planning on travel through Western Manitoba tonight or Wednesday should be prepared for treacherous winter travel conditions on highways west of Portage.

Further east, precipitation from this system is expected to stay mainly as rain over the Red River Valley and Southeast Manitoba. However the rain is expected to become mixed with snow Wednesday evening with some slushy accumulations possible Wednesday night. North winds gusting to 70 or 80 km/h will also affect the Red River Valley overnight and Wednesday.

Environment Canada continues to closely monitor this situation and will be providing updates through today and Wednesday as the storm develops. Please refer to the public forecast for further details.
Darren, Royale Hemlocks, Halifax, NS

http://halifaxweather.blogspot.com/

#6 User offline   dmi Icon

  • Community Moderator
  • Icon
  • Group: Moderators
  • Posts: 5,505
  • Joined: 05-August 04
  • LocationHalifax, NS

Posted 28 October 2010 - 12:24 AM

That huge low pressure system is still spinning around N. Ont. Strong winds the past few days with damage. It would be good if we had a few members from that area to keep us updated.

AWCN11 CWTO 272324
Weather summary for all of Southern Ontario and
The national Capital region
Issued by Environment Canada Toronto at 7:14 PM EDT Wednesday 27
October 2010.

Strong winds over parts of Southern Ontario today
-------------------------------------------------------------
==weather event discussion==

Strong winds developed over portions of Southern Ontario today
courtesy of an unusually large and deep fall storm with a centre
moving slowly east across Northern Ontario.

This fall storm spawned a number of wind warnings which have since
been ended.

Strong wind reports received by Environment Canada as of 7 PM are
found in the table below.

-------------------------------------------------------------
Location strongest wind gust

Coldwater 90 km/h gust
Tree limbs down

Borden 82 km/h gust
Lagoon City 89 km/h gust
Southeast shoal 97 km/h gust
Windsor 78 km/h gust


Please note that this summary contains the observations at
The time of broadcast and does not constitute an official
And final report of the weather events or the high
Impact events attributed to the weather events.

END/OSPC



--------------------------------------------------------------------------------



AWCN12 CWTO 272314
Weather summary for Northern Ontario
Issued by Environment Canada Toronto at 7:15 PM EDT Wednesday 27
October 2010.

...Strong winds and significant rain across parts of northern
Ontario...

-------------------------------------------------------------
==weather event discussion==

An unusually deep and large autumn storm is affecting Northern
Ontario and has generated some very strong winds over areas near the
upper Great Lakes and significant rainfall amounts over portions of
Northwestern Ontario. A number of wind warnings have been issued as
A result.

Very strong wind reports and significant storm rainfall totals from
this storm received by Environment Canada as of 7.00 PM EDT are
Shown in the table below.

-------------------------------------------------------------

Location............. Strongest wind

Sault Ste. Marie 93 km/h gust
Wawa 93 km/h gust
Chapleau 82 km/h gust
Gore Bay 99 km/h gust
Killarney 87 km/h gust
Earlton 70 km/h gusting to 84 km/h
Sudbury 99 km/h gust
North Bay 85 km/h gust
Marathon 78 km/h gust
Pukaskwa (S Marathon) 105 km/h gust
Thunder Bay airport 72 km/h gust Tuesday
Welcome Island
( E Thunder Bay) 113 km/h gust Tuesday


Location............. Storm rainfall total

Thunder Bay 53.7 mm
Cameron Falls 30.7 mm
Kenora 35.8 mm
Red Lake 42.2 mm


Please note that this summary contains the observations at the time
of broadcast and does not constitute an official and final report of
the weather events or the high impact events attributed to the
weather events.

END/OSPC



--------------------------------------------------------------------------------
Darren, Royale Hemlocks, Halifax, NS

http://halifaxweather.blogspot.com/

#7 User offline   Relliott Icon

  • Community Administrator
  • Icon
  • Group: Administrators
  • Posts: 8,885
  • Joined: 12-November 04
  • LocationWest Brooklyn MTN , Nova Scotia

Posted 28 October 2010 - 12:50 AM

Here is a link to one of the American radar sites, interesting looking system, and large.

Radar link

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

Icon1 User(s) are reading this topic (0 members, 1 guests, 0 anonymous users)