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> Dec 18-19th Disturbance
snowgeek93
post Dec 13 2017, 05:33 PM
Post #1




Rank: F5 Superstorm
***

Group: Member
Posts: 3,997
Joined: 7-September 09
From: Thornhill, Ontario
Member No.: 19,154





Looks like some moisture will invade the area again come Monday. This needs to be watched as temps are going near or above freezing again during the event. Hopefully it can remain all snow.

GFS

Attached File  gfs_mslp_pcpn_frzn_neus_19.png ( 154.56K ) Number of downloads: 3


CMC

Attached File  gem_mslp_pcpn_frzn_neus_19.png ( 153.63K ) Number of downloads: 1


--------------------
Thornhill, Ontario Snowfall (Buttonville Airport):

2017/2018: 151.5cm (Weak La Nina)
2016/2017: 142.6cm (Weak La Nina)
2015/2016: 96.4cm (Strong El Nino)
2014/2015: 118.7cm (Weak El Nino)
2013/2014: 184.8cm (Neutral)
2012/2013: 151.6cm (Neutral)
2011/2012: 99.9cm (Weak La Nina)
2010/2011: 168.1cm (Moderate La Nina)
2009/2010: 71.3cm (Moderate El Nino)
2008/2009: 253cm (Weak La Nina)
2007/2008: 251.6cm (Moderate La Nina)
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+Quote Post
snowgeek93
post Dec 14 2017, 07:50 AM
Post #2




Rank: F5 Superstorm
***

Group: Member
Posts: 3,997
Joined: 7-September 09
From: Thornhill, Ontario
Member No.: 19,154





00z CMC a bit kinder to the region:

Attached File  gem_mslp_pcpn_frzn_neus_17.png ( 153.41K ) Number of downloads: 0


If temps can stay closer to freezing this shouldn't impact snow cover too much. Here's hoping.


--------------------
Thornhill, Ontario Snowfall (Buttonville Airport):

2017/2018: 151.5cm (Weak La Nina)
2016/2017: 142.6cm (Weak La Nina)
2015/2016: 96.4cm (Strong El Nino)
2014/2015: 118.7cm (Weak El Nino)
2013/2014: 184.8cm (Neutral)
2012/2013: 151.6cm (Neutral)
2011/2012: 99.9cm (Weak La Nina)
2010/2011: 168.1cm (Moderate La Nina)
2009/2010: 71.3cm (Moderate El Nino)
2008/2009: 253cm (Weak La Nina)
2007/2008: 251.6cm (Moderate La Nina)
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+Quote Post
knorthern_knight
post Dec 14 2017, 02:38 PM
Post #3




Rank: F5 Superstorm
***

Group: Member
Posts: 915
Joined: 3-December 10
From: Greater Toronto
Member No.: 24,490





I hate to "rain on your parade", but that's exactly what the GFS does. Even Quebec City, which is technically all-snow, looks to be hovering around the melting point...

CODE
The following derived from http://charlie.wxcaster.com/
Station ID: CYKF Lat:   43.46 Long:   80.38
CYKF Region of Waterloo International Airport
GFS Model Run: 12Z 14DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
  102 12/18 18Z   31     30    0.00         31     28    0.0
  105 12/18 21Z   30     28    0.01 -SN     31     30    0.0  0.01
  108 12/19 00Z   29     28    0.00 -SN     31     29    0.0
  111 12/19 03Z   31     30    0.00         31     29    0.0
  114 12/19 06Z   32     32    0.01 -SN     32     29    0.0  0.01
  117 12/19 09Z   33     33    0.02 -RA     33     32    0.0  0.03
  120 12/19 12Z   35     34    0.01 -RA     35     32    0.0  0.04
  123 12/19 15Z   36     36    0.02 -RA     36     35    0.0  0.06
  126 12/19 18Z   36     36    0.04 -RA     37     35    0.0  0.10
  129 12/19 21Z   35     35    0.01 -SN     36     35    0.0  0.11
  132 12/20 00Z   32     27    0.00 -SN     36     32    0.0
  135 12/20 03Z   29     23    0.00         32     29    0.0
  138 12/20 06Z   28     22    0.00 -SN     32     28    0.0
  141 12/20 09Z   27     23    0.02 -SN     28     27    0.3  0.02    0.3
  144 12/20 12Z   26     20    0.03 -SN     28     26    0.3  0.05    0.6
The following derived from http://charlie.wxcaster.com/
Station ID: CYXU Lat:   43.03 Long:   81.15
CYXU London International Airport - London, Ontario
GFS Model Run: 12Z 14DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
  108 12/19 00Z   31     30    0.00         31     30    0.0
  111 12/19 03Z   32     32    0.00 -SN     32     31    0.0
  114 12/19 06Z   33     33    0.01 -RA     33     31    0.0  0.01
  117 12/19 09Z   34     34    0.01 -RA     34     33    0.0  0.02
  120 12/19 12Z   35     35    0.01 -RA     35     33    0.0  0.03
  123 12/19 15Z   36     36    0.03 -RA     37     35    0.0  0.06
  126 12/19 18Z   36     36    0.04 -RA     37     35    0.0  0.10
  129 12/19 21Z   35     34    0.01 -RA     36     35    0.0  0.11
  132 12/20 00Z   31     28    0.00 -SN     36     31    0.0
  135 12/20 03Z   29     24    0.01 -SN     31     29    0.0  0.01
  138 12/20 06Z   26     22    0.00 -SN     31     26    0.0
  141 12/20 09Z   26     20    0.00         26     26    0.0
  144 12/20 12Z   25     20    0.00         26     25    0.0
The following derived from http://charlie.wxcaster.com/
Station ID: CYHM Lat:   43.16 Long:   79.93
CYHM John C. Munro Hamilton International Airport
GFS Model Run: 12Z 14DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
  111 12/19 03Z   33     32    0.00         33     31    0.0
  114 12/19 06Z   33     33    0.01 -RA     33     31    0.0  0.01
  117 12/19 09Z   35     35    0.01 -RA     35     33    0.0  0.02
  120 12/19 12Z   36     36    0.01 -RA     36     33    0.0  0.03
  123 12/19 15Z   37     37    0.02 -RA     37     36    0.0  0.05
  126 12/19 18Z   38     37    0.06 -RA     38     36    0.0  0.11
  129 12/19 21Z   37     35    0.02 -RA     38     37    0.0  0.13
  132 12/20 00Z   32     28    0.00 -SN     38     32    0.0
  135 12/20 03Z   30     24    0.00         32     30    0.0
  138 12/20 06Z   29     22    0.00         32     29    0.0
  141 12/20 09Z   28     22    0.01         29     28    0.1  0.01    0.1
  144 12/20 12Z   27     21    0.02 -SN     29     27    0.1  0.03    0.2
The following derived from http://charlie.wxcaster.com/
Station ID: CYYZ Lat:   43.66 Long:   79.63
CYYZ Toronto Pearson International Airport - Toronto, Ontario
GFS Model Run: 12Z 14DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
  111 12/19 03Z   33     30    0.00         33     32    0.0
  114 12/19 06Z   35     33    0.01 -RA     35     32    0.0  0.01
  117 12/19 09Z   36     35    0.01 -RA     36     35    0.0  0.02
  120 12/19 12Z   38     36    0.00 -RA     38     35    0.0
  123 12/19 15Z   39     38    0.01 -RA     39     38    0.0  0.01
  126 12/19 18Z   40     38    0.01 -RA     40     38    0.0  0.02
  129 12/19 21Z   39     36    0.01 -RA     40     39    0.0  0.03
  132 12/20 00Z   36     29    0.00 -RA     40     36    0.0
  135 12/20 03Z   34     27    0.00         36     33    0.0
  138 12/20 06Z   32     25    0.00         36     32    0.0
  141 12/20 09Z   31     24    0.02 -SN     32     31    0.1  0.02    0.1
  144 12/20 12Z   30     20    0.04 -TSSN   32     30    0.2  0.06    0.3
The following derived from http://charlie.wxcaster.com/
Station ID: CYOW Lat:   45.31 Long:   75.66
CYOW Ottawa Macdonald-Cartier International Airport
GFS Model Run: 12Z 14DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
  117 12/19 09Z   23     22    0.00         23     21    0.0
  120 12/19 12Z   26     25    0.01         26     21    0.1  0.01    0.1
  123 12/19 15Z   33     32    0.03 -SN     33     26    0.1  0.04    0.2
  126 12/19 18Z   36     36    0.01 -RA     36     26    0.0  0.05
  129 12/19 21Z   36     36    0.03 -RA     36     36    0.0  0.08
  132 12/20 00Z   36     36    0.03 -RA     36     36    0.0  0.11
  135 12/20 03Z   36     33    0.03 -RA     36     36    0.0  0.14
  138 12/20 06Z   29     24    0.00 -SN     36     29    0.0
  141 12/20 09Z   26     21    0.00         29     26    0.0
  144 12/20 12Z   25     21    0.00         29     25    0.0
The following derived from http://charlie.wxcaster.com/
Station ID: CYUL Lat:   45.46 Long:   73.75
CYUL Montr�al-Pierre Elliott Trudeau International Airport - Montreal, Quebec
GFS Model Run: 12Z 14DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
  117 12/19 09Z   22     21    0.00         22     21    0.0
  120 12/19 12Z   25     24    0.00 -SN     25     21    0.0
  123 12/19 15Z   30     29    0.01 -FZRN   30     25    0.0  0.01
  126 12/19 18Z   34     34    0.02 -RA     34     25    0.0  0.03
  129 12/19 21Z   36     34    0.01 -RA     36     34    0.0  0.04
  132 12/20 00Z   36     34    0.05 -RA     36     34    0.0  0.09
  135 12/20 03Z   36     35    0.10 -RA     36     35    0.0  0.19
  138 12/20 06Z   34     30    0.02 -RA     36     34    0.0  0.21
  141 12/20 09Z   29     24    0.00         34     29    0.0
  144 12/20 12Z   26     21    0.00         34     26    0.0
The following derived from http://charlie.wxcaster.com/
Station ID: CYQB Lat:   46.79 Long:   71.38
CYQB Qu�bec City Jean Lesage International Airport - Quebec City, Quebec
GFS Model Run: 12Z 14DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
  123 12/19 15Z   23     21    0.00         23     15    0.0
  126 12/19 18Z   27     26    0.02 -SN     27     15    0.2  0.02    0.2
  129 12/19 21Z   30     29    0.02 -SN     30     27    0.2  0.04    0.4
  132 12/20 00Z   33     32    0.05 -SN     33     28    0.4  0.09    0.8
  135 12/20 03Z   33     33    0.16 SN      34     33    0.7  0.25    1.5
  138 12/20 06Z   34     33    0.22 SN      34     33    1.0  0.47    2.5
  141 12/20 09Z   33     30    0.05 -SN     34     33    0.2  0.52    2.7
  144 12/20 12Z   25     22    0.00 -SN     34     26    0.0
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+Quote Post
snowgeek93
post Dec 14 2017, 05:46 PM
Post #4




Rank: F5 Superstorm
***

Group: Member
Posts: 3,997
Joined: 7-September 09
From: Thornhill, Ontario
Member No.: 19,154





Yeah, this looks like a potential snow eater here. If it melts, it melts though; plenty of time for more snow to show up.


--------------------
Thornhill, Ontario Snowfall (Buttonville Airport):

2017/2018: 151.5cm (Weak La Nina)
2016/2017: 142.6cm (Weak La Nina)
2015/2016: 96.4cm (Strong El Nino)
2014/2015: 118.7cm (Weak El Nino)
2013/2014: 184.8cm (Neutral)
2012/2013: 151.6cm (Neutral)
2011/2012: 99.9cm (Weak La Nina)
2010/2011: 168.1cm (Moderate La Nina)
2009/2010: 71.3cm (Moderate El Nino)
2008/2009: 253cm (Weak La Nina)
2007/2008: 251.6cm (Moderate La Nina)
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+Quote Post
knorthern_knight
post Dec 16 2017, 11:43 AM
Post #5




Rank: F5 Superstorm
***

Group: Member
Posts: 915
Joined: 3-December 10
From: Greater Toronto
Member No.: 24,490





100% poly-unsaturated BLEAGH! Still showing mostly rain, except for Quebec. And everybody's temperatures will get above melting.

CODE
The following derived from http://charlie.wxcaster.com/
Station ID: CYKF Lat:   43.46 Long:   80.38
CYKF Region of Waterloo International Airport
GFS Model Run:  0Z 16DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   72 12/19 00Z   31     30    0.00         33     30    0.0
   75 12/19 03Z   33     33    0.01 -RA     33     31    0.0  0.01
   78 12/19 06Z   35     34    0.02 -RA     35     31    0.0  0.03
   81 12/19 09Z   36     36    0.01 -RA     36     35    0.0  0.04
   84 12/19 12Z   36     34    0.00 -RA     37     35    0.0
   87 12/19 15Z   36     35    0.00 -RA     36     36    0.0
   90 12/19 18Z   35     33    0.04 -SN     36     35    0.3  0.04    0.3
   93 12/19 21Z   34     28    0.00 -SN     35     34    0.0
   96 12/20 00Z   30     23    0.00 -SN     35     30    0.0
   99 12/20 03Z   29     23    0.00 -SN     30     29    0.0
  102 12/20 06Z   28     23    0.01 -SN     30     28    0.2  0.01    0.2
  105 12/20 09Z   26     18    0.00 -SN     28     26    0.0
  108 12/20 12Z   25     18    0.00 -SN     28     25    0.0
  111 12/20 15Z   26     17    0.00         26     24    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYXU Lat:   43.03 Long:   81.15
CYXU London International Airport - London, Ontario
GFS Model Run:  0Z 16DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   54 12/18 06Z   32     31    0.00         32     22    0.0
   57 12/18 09Z   32     31    0.00 -SN     32     31    0.0
   60 12/18 12Z   32     32    0.00 -SN     32     31    0.0
   63 12/18 15Z   32     32    0.00 -SN     32     32    0.0
   66 12/18 18Z   33     33    0.00 -SN     33     32    0.0
   69 12/18 21Z   32     32    0.01 -SN     33     32    0.0  0.01
   72 12/19 00Z   33     32    0.01 -RA     33     32    0.0  0.02
   75 12/19 03Z   34     34    0.02 -RA     34     33    0.0  0.04
   78 12/19 06Z   35     35    0.01 -RA     35     33    0.0  0.05
   81 12/19 09Z   36     36    0.01 -RA     36     35    0.0  0.06
   84 12/19 12Z   35     35    0.00 -RA     36     35    0.0
   87 12/19 15Z   34     34    0.01 -RA     35     34    0.0  0.01
   90 12/19 18Z   35     34    0.03 -SN     35     34    0.0  0.04
   93 12/19 21Z   34     29    0.00 -SN     35     34    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYHM Lat:   43.16 Long:   79.93
CYHM John C. Munro Hamilton International Airport
GFS Model Run:  0Z 16DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   72 12/19 00Z   32     31    0.00         34     30    0.0
   75 12/19 03Z   35     35    0.00 -RA     35     32    0.0
   78 12/19 06Z   36     36    0.02 -RA     36     32    0.0  0.02
   81 12/19 09Z   38     37    0.01 -RA     38     36    0.0  0.03
   84 12/19 12Z   38     36    0.00 -RA     39     36    0.0
   87 12/19 15Z   38     36    0.00 -RA     38     37    0.0
   90 12/19 18Z   37     34    0.03 -RA     38     37    0.1  0.03    0.1
   93 12/19 21Z   36     30    0.02 -SN     37     36    0.0  0.05
   96 12/20 00Z   31     25    0.00 -SN     37     31    0.0
   99 12/20 03Z   30     23    0.00         31     30    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYYZ Lat:   43.66 Long:   79.63
CYYZ Toronto Pearson International Airport - Toronto, Ontario
GFS Model Run:  0Z 16DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   75 12/19 03Z   35     34    0.00         35     33    0.0
   78 12/19 06Z   38     36    0.01 -RA     38     33    0.0  0.01
   81 12/19 09Z   39     37    0.00 -RA     39     38    0.0
   84 12/19 12Z   39     35    0.00 -RA     40     38    0.0
   87 12/19 15Z   39     35    0.00         39     39    0.0
   90 12/19 18Z   39     34    0.03 -RA     40     38    0.0  0.03
   93 12/19 21Z   38     30    0.00 -SN     39     38    0.0
   96 12/20 00Z   35     26    0.00         39     35    0.0
   99 12/20 03Z   33     24    0.00 -SN     35     33    0.0
  102 12/20 06Z   32     24    0.01 -SN     35     32    0.0  0.01
  105 12/20 09Z   31     20    0.00 -SN     32     31    0.0
  108 12/20 12Z   30     20    0.00         32     30    0.1          0.1
  111 12/20 15Z   30     19    0.00         30     29    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYOW Lat:   45.31 Long:   75.66
CYOW Ottawa Macdonald-Cartier International Airport
GFS Model Run:  0Z 16DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   78 12/19 06Z   22     22    0.00         22     17    0.0
   81 12/19 09Z   27     27    0.03 -SN     27     22    0.3  0.03    0.3
   84 12/19 12Z   35     34    0.03 -SN     35     22    0.1  0.06    0.4
   87 12/19 15Z   37     36    0.02 -RA     37     35    0.0  0.08
   90 12/19 18Z   37     36    0.01 -RA     37     35    0.0  0.09
   93 12/19 21Z   36     33    0.02 -RA     37     36    0.0  0.11
   96 12/20 00Z   32     28    0.00 -SN     37     32    0.0
   99 12/20 03Z   29     25    0.00         32     29    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYUL Lat:   45.46 Long:   73.75
CYUL Montr�al-Pierre Elliott Trudeau International Airport - Montreal, Quebec
GFS Model Run:  0Z 16DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   81 12/19 09Z   21     20    0.00         21     17    0.0
   84 12/19 12Z   28     27    0.04 -SN     28     17    0.5  0.04    0.5
   87 12/19 15Z   36     35    0.06 -RA     36     28    0.0  0.10
   90 12/19 18Z   37     37    0.02 -RA     37     28    0.0  0.12
   93 12/19 21Z   36     34    0.02 -RA     37     36    0.0  0.14
   96 12/20 00Z   35     32    0.01 -RA     37     35    0.0  0.15
   99 12/20 03Z   32     29    0.00         35     32    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYQB Lat:   46.79 Long:   71.38
CYQB Qu�bec City Jean Lesage International Airport - Quebec City, Quebec
GFS Model Run:  0Z 16DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   84 12/19 12Z   16     15    0.00         16     11    0.0
   87 12/19 15Z   23     22    0.05 -SN     23     16    0.6  0.05    0.6
   90 12/19 18Z   29     28    0.14 -SN     29     16    1.3  0.19    1.9
   93 12/19 21Z   33     32    0.11 -SN     33     29    0.8  0.30    2.7
   96 12/20 00Z   34     32    0.06 -SN     35     29    0.3  0.36    3.0
   99 12/20 03Z   29     27    0.00         34     29    0.0
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travis3000
post Dec 16 2017, 12:43 PM
Post #6




Rank: F5 Superstorm
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Posts: 3,958
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From: Alliston,Ontario
Member No.: 12,822





12z GFS is basically a non event. A bit of light snow up in cottage country but thats it.


--------------------
Barrie ,ON 2017/2018 Snowfall:
Alliston in ( )
October: 2cm (0cm)
November: 30cm (13cm)
December: 70.5cm (52cm)
January: 49.5cm (27cm)
February: 39cm (30cm)
March: 20cm (18cm)
April: 33cm (19cm)
SEASON TOTAL...
Barrie: 244cm
Alliston: 159cm


--
Alliston history
2016/2017: 148cm
2015/2016 Total: 121cm
2014/2015 Total: 113.5cm
2013/2014 Total: 200cm
2012/2013: 140cm
2011/2012: 103cm
2010/2011: 213.5cm
2009/2010: 97cm
2008/2009: 232cm
2007/2008: 291cm
2006/2007: 84.8cm
LAST 11 YEAR AVERAGE: 158cm

Travis
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snowgeek93
post Dec 16 2017, 02:02 PM
Post #7




Rank: F5 Superstorm
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Posts: 3,997
Joined: 7-September 09
From: Thornhill, Ontario
Member No.: 19,154





Bad timing as it would have been nice to hold onto our snowpack a bit longer with cold air returning afterwards.


--------------------
Thornhill, Ontario Snowfall (Buttonville Airport):

2017/2018: 151.5cm (Weak La Nina)
2016/2017: 142.6cm (Weak La Nina)
2015/2016: 96.4cm (Strong El Nino)
2014/2015: 118.7cm (Weak El Nino)
2013/2014: 184.8cm (Neutral)
2012/2013: 151.6cm (Neutral)
2011/2012: 99.9cm (Weak La Nina)
2010/2011: 168.1cm (Moderate La Nina)
2009/2010: 71.3cm (Moderate El Nino)
2008/2009: 253cm (Weak La Nina)
2007/2008: 251.6cm (Moderate La Nina)
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puttin
post Dec 18 2017, 06:56 AM
Post #8




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Posts: 1,844
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From: Newmarket
Member No.: 12,834





QUOTE(snowgeek93 @ Dec 16 2017, 02:02 PM) *
Bad timing as it would have been nice to hold onto our snowpack a bit longer with cold air returning afterwards.

Snowing pretty good here right now. 2-4 cm and freezing drizzle....not nice out there, slippy

This post has been edited by puttin: Dec 18 2017, 07:11 AM
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knorthern_knight
post Dec 18 2017, 07:49 AM
Post #9




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Joined: 3-December 10
From: Greater Toronto
Member No.: 24,490





A Winter Weather Advisory for Toronto and a strip across Southerm Ontario. Toronto isn't looking at significant amounts (snowbelts obviously expecting more), but there may be local fog and freezing drizzle, making for difficult driving.

Attached File  son_e.png ( 25.72K ) Number of downloads: 1


QUOTE
6:08 AM EST Monday 18 December 2017
Weather advisory in effect for:

City of Toronto

Winter weather travel advisory in effect for this morning.

Snow possibly mixed with some freezing drizzle is expected to develop this morning. Snowfall amounts will be limited to a few centimetres at most, and any freezing drizzle is expected to be light. Dense fog patches reducing visibility are likely in some areas as well.

Although precipitation amounts will not be overly significant, locally slippery road conditions are anticipated this morning. Motorists are advised to exercise caution.

Temperatures are expected to rise above the freezing mark later this morning or early afternoon.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ec.cpio-tempetes-ospc-storms.ec@canada.ca or tweet reports using #ONStorm.
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knorthern_knight
post Dec 18 2017, 08:01 AM
Post #10




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Joined: 3-December 10
From: Greater Toronto
Member No.: 24,490





Everybody except Quebec City looking to get at least some rain, and Quebec City will still get above-melting temps.

CODE
The following derived from http://charlie.wxcaster.com/
Station ID: CYKF Lat:   43.46 Long:   80.38
CYKF Region of Waterloo International Airport
GFS Model Run:  0Z 18DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
    6 12/18 06Z   23     22    0.00         23     18    0.0
    9 12/18 09Z   26     25    0.01 -SN     26     23    0.0  0.01
   12 12/18 12Z   31     30    0.00 -SN     31     23    0.0
   15 12/18 15Z   33     33    0.02 -RA     33     31    0.0  0.02
   18 12/18 18Z   34     34    0.03 -RA     34     31    0.0  0.05
   21 12/18 21Z   34     33    0.03 -RA     34     34    0.0  0.08
   24 12/19 00Z   34     33    0.00 -SN     34     34    0.0
   27 12/19 03Z   33     31    0.00 -SN     34     33    0.0
   30 12/19 06Z   34     32    0.00 -RA     34     33    0.0
   33 12/19 09Z   34     32    0.00         34     34    0.0
   36 12/19 12Z   34     33    0.00         34     34    0.0
   39 12/19 15Z   35     34    0.01 -RA     35     35    0.0  0.01
   42 12/19 18Z   35     33    0.00 -SN     35     35    0.0
   45 12/19 21Z   34     30    0.00 -SN     35     34    0.0
   48 12/20 00Z   32     27    0.00 -SN     35     32    0.0
   51 12/20 03Z   31     26    0.00 -SN     32     31    0.0
   54 12/20 06Z   30     23    0.01 -SN     32     30    0.0  0.01
   57 12/20 09Z   27     19    0.00 -SN     29     27    0.0
   60 12/20 12Z   25     19    0.00         29     25    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYXU Lat:   43.03 Long:   81.15
CYXU London International Airport - London, Ontario
GFS Model Run:  0Z 18DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   12 12/18 12Z   32     32    0.00         32     28    0.0
   15 12/18 15Z   33     33    0.03 -RA     33     32    0.0  0.03
   18 12/18 18Z   34     34    0.04 -RA     34     32    0.0  0.07
   21 12/18 21Z   33     33    0.04 -RA     34     33    0.0  0.11
   24 12/19 00Z   34     33    0.01 -RA     34     33    0.0  0.12
   27 12/19 03Z   33     33    0.01 -RA     34     33    0.0  0.13
   30 12/19 06Z   33     33    0.00 -RA     34     33    0.0
   33 12/19 09Z   34     34    0.00 -RA     34     33    0.0
   36 12/19 12Z   35     35    0.00 -RA     35     33    0.0
   39 12/19 15Z   35     35    0.00 -RA     35     35    0.0
   42 12/19 18Z   35     35    0.00 -RA     35     35    0.0
   45 12/19 21Z   34     32    0.00 -SN     35     34    0.0
   48 12/20 00Z   31     28    0.00 -SN     35     31    0.0
   51 12/20 03Z   29     25    0.00         31     29    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYHM Lat:   43.16 Long:   79.93
CYHM John C. Munro Hamilton International Airport
GFS Model Run:  0Z 18DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
    6 12/18 06Z   25     24    0.00         25     20    0.0
    9 12/18 09Z   29     29    0.01 -FZRN   29     25    0.0  0.01
   12 12/18 12Z   32     32    0.00 -RA     32     25    0.0
   15 12/18 15Z   34     34    0.01 -RA     34     32    0.0  0.01
   18 12/18 18Z   35     35    0.02 -RA     35     32    0.0  0.03
   21 12/18 21Z   35     35    0.02 -RA     36     35    0.0  0.05
   24 12/19 00Z   35     33    0.00 -RA     36     35    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYYZ Lat:   43.66 Long:   79.63
CYYZ Toronto Pearson International Airport - Toronto, Ontario
GFS Model Run:  0Z 18DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
    6 12/18 06Z   27     25    0.00         27     23    0.0
    9 12/18 09Z   28     26    0.00 -SN     28     27    0.0
   12 12/18 12Z   30     28    0.01 -SN     30     27    0.1  0.01    0.1
   15 12/18 15Z   35     34    0.04 -RA     35     30    0.1  0.05    0.2
   18 12/18 18Z   37     36    0.03 -RA     37     30    0.0  0.08
   21 12/18 21Z   37     35    0.02 -RA     37     37    0.0  0.10
   24 12/19 00Z   36     33    0.00 -RA     37     36    0.0
  144 12/24 00Z   30     18    0.00         35     29    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYOW Lat:   45.31 Long:   75.66
CYOW Ottawa Macdonald-Cartier International Airport
GFS Model Run:  0Z 18DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
    9 12/18 09Z    5      3    0.00          5      5    0.0
   12 12/18 12Z    8      6    0.01          8      5    0.1  0.01    0.1
   15 12/18 15Z   11     10    0.04 -SN     11      8    0.8  0.05    0.9
   18 12/18 18Z   15     14    0.03 -SN     15      8    0.4  0.08    1.3
   21 12/18 21Z   16     15    0.03 -SN     16     15    0.4  0.11    1.7
   24 12/19 00Z   16     16    0.04 -SN     16     15    0.5  0.15    2.2
   27 12/19 03Z   17     17    0.01 -SN     17     16    0.1  0.16    2.3
   30 12/19 06Z   20     20    0.00 -SN     20     16    0.0
   33 12/19 09Z   26     25    0.00         26     20    0.0
   36 12/19 12Z   32     30    0.01 -SN     32     20    0.0  0.01
   39 12/19 15Z   34     33    0.06 -SN     34     32    0.2  0.07    0.2
   42 12/19 18Z   36     35    0.01 -RA     36     32    0.0  0.08
   45 12/19 21Z   36     33    0.00 -RA     37     36    0.0
   48 12/20 00Z   33     27    0.00 -SN     37     33    0.0
   51 12/20 03Z   29     24    0.00 -SN     33     29    0.0
   54 12/20 06Z   24     21    0.00         33     24    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYUL Lat:   45.46 Long:   73.75
CYUL Montr�al-Pierre Elliott Trudeau International Airport - Montreal, Quebec
GFS Model Run:  0Z 18DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   12 12/18 12Z    8      6    0.00          8      5    0.0
   15 12/18 15Z   10     10    0.03 -SN     10      8    0.5  0.03    0.5
   18 12/18 18Z   14     13    0.06 -SN     14      8    1.0  0.09    1.5
   21 12/18 21Z   15     14    0.03 -SN     15     14    0.5  0.12    2.0
   24 12/19 00Z   15     15    0.05 -SN     15     14    0.7  0.17    2.7
   27 12/19 03Z   16     15    0.05 -SN     16     15    0.8  0.22    3.5
   30 12/19 06Z   17     16    0.01 -SN     17     15    0.0  0.23
   33 12/19 09Z   19     19    0.00 -SN     19     17    0.0
   36 12/19 12Z   24     23    0.01 -SN     24     17    0.0  0.01
   39 12/19 15Z   34     34    0.03 -RA     34     24    0.0  0.04
   42 12/19 18Z   35     35    0.11 -RA     35     24    0.0  0.15
   45 12/19 21Z   36     34    0.01 -RA     36     35    0.0  0.16
   48 12/20 00Z   36     32    0.00 -RA     36     35    0.0
   51 12/20 03Z   31     25    0.00         36     31    0.0
   54 12/20 06Z   27     23    0.00         36     27    0.0
   57 12/20 09Z   23     20    0.00         27     23    0.0
   60 12/20 12Z   25     23    0.01 -SN     27     23    0.0  0.01
   63 12/20 15Z   23     16    0.01 -SN     26     23    0.2  0.02    0.2
   66 12/20 18Z   18     11    0.00 -SN     26     18    0.0
   69 12/20 21Z   17     11    0.00         18     17    0.0

The following derived from http://charlie.wxcaster.com/
Station ID: CYQB Lat:   46.79 Long:   71.38
CYQB Qu�bec City Jean Lesage International Airport - Quebec City, Quebec
GFS Model Run:  0Z 18DEC 2017
==============================
   HR Valid     2m Tmp 2m Dpt TPrcp PRS WX Max    Min Snowfall
                 Deg F  Deg F  in.  TEXT   Tmp    Tmp    in
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n_ PCPN  SNOW
   21 12/18 21Z   12     10    0.00         16     13    0.1          0.1
   24 12/19 00Z   12      9    0.00         16     11    0.0
   27 12/19 03Z   15     13    0.01         15     12    0.1  0.01    0.1
   30 12/19 06Z   17     15    0.00         17     12    0.1          0.2
   33 12/19 09Z   18     16    0.00         18     16    0.0
   36 12/19 12Z   18     18    0.00         18     16    0.0
   39 12/19 15Z   23     21    0.02 -SN     23     18    0.2  0.02    0.2
   42 12/19 18Z   27     26    0.13 -SN     27     18    1.5  0.15    1.7
   45 12/19 21Z   29     28    0.14 -SN     29     27    1.4  0.29    3.1
   48 12/20 00Z   33     31    0.08 -SN     33     27    0.7  0.37    3.8
   51 12/20 03Z   33     30    0.05 -SN     34     33    0.4  0.42    4.2
   54 12/20 06Z   28     22    0.01 -SN     34     28    0.0  0.43
   57 12/20 09Z   20     13    0.00         28     20    0.0
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snowgeek93
post Dec 18 2017, 09:14 AM
Post #11




Rank: F5 Superstorm
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Posts: 3,997
Joined: 7-September 09
From: Thornhill, Ontario
Member No.: 19,154





Moderate snowfall here this morning. Kind of a waste as it's all gonna melt soon but still a very nice sight. Should help boost up totals in the snow department at least.


--------------------
Thornhill, Ontario Snowfall (Buttonville Airport):

2017/2018: 151.5cm (Weak La Nina)
2016/2017: 142.6cm (Weak La Nina)
2015/2016: 96.4cm (Strong El Nino)
2014/2015: 118.7cm (Weak El Nino)
2013/2014: 184.8cm (Neutral)
2012/2013: 151.6cm (Neutral)
2011/2012: 99.9cm (Weak La Nina)
2010/2011: 168.1cm (Moderate La Nina)
2009/2010: 71.3cm (Moderate El Nino)
2008/2009: 253cm (Weak La Nina)
2007/2008: 251.6cm (Moderate La Nina)
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SNOWBOB11
post Dec 18 2017, 11:09 AM
Post #12




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Posts: 918
Joined: 16-January 13
Member No.: 28,061





We continue to get snow falling at a decent clip in the east end of the GTA. At least 5cm down so far and it is falling quite moderately atm. NAM was kind of showing this possibility yesterday.
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travis3000
post Dec 18 2017, 11:53 AM
Post #13




Rank: F5 Superstorm
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Group: Member
Posts: 3,958
Joined: 21-January 08
From: Alliston,Ontario
Member No.: 12,822





3cm accumualted in Barrie nice little surprise. Still snowing now.


--------------------
Barrie ,ON 2017/2018 Snowfall:
Alliston in ( )
October: 2cm (0cm)
November: 30cm (13cm)
December: 70.5cm (52cm)
January: 49.5cm (27cm)
February: 39cm (30cm)
March: 20cm (18cm)
April: 33cm (19cm)
SEASON TOTAL...
Barrie: 244cm
Alliston: 159cm


--
Alliston history
2016/2017: 148cm
2015/2016 Total: 121cm
2014/2015 Total: 113.5cm
2013/2014 Total: 200cm
2012/2013: 140cm
2011/2012: 103cm
2010/2011: 213.5cm
2009/2010: 97cm
2008/2009: 232cm
2007/2008: 291cm
2006/2007: 84.8cm
LAST 11 YEAR AVERAGE: 158cm

Travis
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Apocalypse
post Dec 18 2017, 02:37 PM
Post #14




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Posts: 360
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From: Toronto, Ontario
Member No.: 26,935





Got around 2cm of snow this morning. Changed over to rain already and the snow on the roofs are starting to melt.
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