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March 2022 Obs/Disc: In Like a Lamb, Out Like a Butterfly


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March, while not 2012, is mainly fool's gold.

Implications of Potential Stratospheric Warming in March
It appears as though the European guidance will indeed prove correct with respect to the increased vulnerability of the polar vortex during the month of March, as there is currently agreement between both both the GFS and European suites that a split will occur.
 
AVvXsEhdEcRAxFUXqRe2HplTKPKlIph5FT8X28PfhtzokKeWQzJybiZndah2SblDAhnruh14ehuC8R3Qoy55fCwa0Sf32_OjRynyCdshgkvXb9VqnUYUJLX8CcDjGIaSiaJJ8YsQoKk2dJFoaljlTBnejJULn2O8U9pdkOwF3WLByxEOkfAfjD60tqW07yvj=s320
 
AVvXsEiCm7yG0ZtILV1hKho9u4xAD4kEOJvjyZCHIh1UhobXT8WwG1dCNyJjMRbw8VVfTSas5pxR0nHX8NZ71tXJ-ZV30hqFusWDJ5CT864OGNciTHhhts3JGD8xYxG5iKr1-KiV4_DvE5eY5uanGLWX0tqEms7hmKIHzX3h0XAgqEXvkkmLyjrYvO6rYOs8=s320
 
Upon a perfunctory examination, it would appear as though the Eastern Mass Weather forecast of a polar vortex split to occur by February 11 was simply a few weeks too late. However, this particular event is induced largely via tropospheric wave breaking, and is this not the product of a SSW. Thus this portion of the Eastern Mass Weather winter outlook will in fact be be wrong, and instead any impacts from this event via cold air outbreaks will be fleeting, as the vortex rapidly recovers the second week of the month.
 
AVvXsEgkjjlbAFZ0APXdFUsSLayrSiifUtLa1flMZxGa4cMPbmJm2UJQxvDgtetpVpP7EYahf8QSqWjBmmp21JNvNgzziavcFnZ-bmeyJuvGyJRC1R-VcnJ-RqMLBCMMgkcbBLOu3tkwKjQT4-KCoEfp6-LxWR1ZQbs-H79-skQRKligdPfOsEWmXdDNrY3D=s320
 
What this does mean is that the month of March is unlikely to be as severe as originally predicted last fall, as noted by the explicitly stated warm risks in the event that the SSW event did not occur. What this does NOT mean is that the month will be absolutely devoid of wintry weather.  As evidenced by the month of February, the Pacific will play a role, as well as the overall shape and character of the 
polar vortex. Note in the image above that while it has indeed recovered and is no longer bifurcated, it is not extremely consolidated and is in fact elongated in the direction of the northeast US. This should allow for a cold source to be at least near by, which should provide winter precipitation throughout at least northern New England, and opportunities points further south. The Pacific will be fairly conducive to cold intrusions through the first week of the month, however, it is unlikely to remain as favorable throughout the duration of the month as February did. There is support for troughing to develop and encompass much of the western US during the second week of the month, perhaps somewhat like the month of December, which certainly implies that warmer risks in the absence of the originally forecast high latitude blocking will prove more viable than during the month of February. 
 
AVvXsEiXIcIlYN-t0tqYQZtzSBepmSumkWRsTlBchgBlQ6taKWsZybPT7ydDTbGgVepMrVAmTJvO29o9Xeyzol4ZBhuUkJGhZSgkWm9IgpbZTcDUyXMjOXf6UW3tYYWusxse82mH7xTGean6qbz1LraknZigsVuUunJK_wva4mI7Q509eYUq-JAKgrtf_AJd=s320

 

However, there will be periods with cold lurking nearby at least though mid month.
 
AVvXsEisDJzet05GtEhZW8cPbRAsB-CQstL5VrKifdFOHFieEIyZy3ZDyXSGqevqxGeDUUv9Jw7W2PWVqiJby8sk-96NAfZ2Jr8i_stLxf_gNcQ47tNnOFz4BDfvwt92QnQrS6kQGT6prRUG-98xJ4lxiPXut9o0lpiQO9lQfBd5Tu5szD26IH_cJ6YuVMWN=s320

 

Thus although the season is unlikely to go out as the lion it was advertised to last fall, there are also some signs that it may not exactly go out as a lamb, either. The month will like finish near average to slightly above average.
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2 hours ago, snowman19 said:

As you would say…voodoo 

 

 

Exactly ...

This is not the phenomenon that SSW blah blab b'blah blag.   There is a warm intrusion at 5 and 10 mb that's just occurred but it most likely is of insufficient mass to force the sequence into motion.    As is the case ...I can't find any guidance that projects that behavior -

There are only two aspects from where I am sitting that have any hope in saving an otherwise unceremonious end to winter. 

1 being the -EPO ... But frankly, I have my doubts how that will even effect the hemisphere as March solar/radiative forcing begins to normalize the hemisphere.  There's time, but it's got to get moving sooner ... 

2 proverbial "bowling season"  ... this year ( experimental/supposition ) "seems" like a good year for that, to me. 

 

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2 hours ago, 40/70 Benchmark said:

March, while not 2012, is mainly fool's gold.

Implications of Potential Stratospheric Warming in March
It appears as though the European guidance will indeed prove correct with respect to the increased vulnerability of the polar vortex during the month of March, as there is currently agreement between both both the GFS and European suites that a split will occur.
 
AVvXsEhdEcRAxFUXqRe2HplTKPKlIph5FT8X28PfhtzokKeWQzJybiZndah2SblDAhnruh14ehuC8R3Qoy55fCwa0Sf32_OjRynyCdshgkvXb9VqnUYUJLX8CcDjGIaSiaJJ8YsQoKk2dJFoaljlTBnejJULn2O8U9pdkOwF3WLByxEOkfAfjD60tqW07yvj=s320
 
AVvXsEiCm7yG0ZtILV1hKho9u4xAD4kEOJvjyZCHIh1UhobXT8WwG1dCNyJjMRbw8VVfTSas5pxR0nHX8NZ71tXJ-ZV30hqFusWDJ5CT864OGNciTHhhts3JGD8xYxG5iKr1-KiV4_DvE5eY5uanGLWX0tqEms7hmKIHzX3h0XAgqEXvkkmLyjrYvO6rYOs8=s320
 
Upon a perfunctory examination, it would appear as though the Eastern Mass Weather forecast of a polar vortex split to occur by February 11 was simply a few weeks too late. However, this particular event is induced largely via tropospheric wave breaking, and is this not the product of a SSW. Thus this portion of the Eastern Mass Weather winter outlook will in fact be be wrong, and instead any impacts from this event via cold air outbreaks will be fleeting, as the vortex rapidly recovers the second week of the month.
 
AVvXsEgkjjlbAFZ0APXdFUsSLayrSiifUtLa1flMZxGa4cMPbmJm2UJQxvDgtetpVpP7EYahf8QSqWjBmmp21JNvNgzziavcFnZ-bmeyJuvGyJRC1R-VcnJ-RqMLBCMMgkcbBLOu3tkwKjQT4-KCoEfp6-LxWR1ZQbs-H79-skQRKligdPfOsEWmXdDNrY3D=s320
 
What this does mean is that the month of March is unlikely to be as severe as originally predicted last fall, as noted by the explicitly stated warm risks in the event that the SSW event did not occur. What this does NOT mean is that the month will be absolutely devoid of wintry weather.  As evidenced by the month of February, the Pacific will play a role, as well as the overall shape and character of the 
polar vortex. Note in the image above that while it has indeed recovered and is no longer bifurcated, it is not extremely consolidated and is in fact elongated in the direction of the northeast US. This should allow for a cold source to be at least near by, which should provide winter precipitation throughout at least northern New England, and opportunities points further south. The Pacific will be fairly conducive to cold intrusions through the first week of the month, however, it is unlikely to remain as favorable throughout the duration of the month as February did. There is support for troughing to develop and encompass much of the western US during the second week of the month, perhaps somewhat like the month of December, which certainly implies that warmer risks in the absence of the originally forecast high latitude blocking will prove more viable than during the month of February. 
 
AVvXsEiXIcIlYN-t0tqYQZtzSBepmSumkWRsTlBchgBlQ6taKWsZybPT7ydDTbGgVepMrVAmTJvO29o9Xeyzol4ZBhuUkJGhZSgkWm9IgpbZTcDUyXMjOXf6UW3tYYWusxse82mH7xTGean6qbz1LraknZigsVuUunJK_wva4mI7Q509eYUq-JAKgrtf_AJd=s320

 

However, there will be periods with cold lurking nearby at least though mid month.
 
AVvXsEisDJzet05GtEhZW8cPbRAsB-CQstL5VrKifdFOHFieEIyZy3ZDyXSGqevqxGeDUUv9Jw7W2PWVqiJby8sk-96NAfZ2Jr8i_stLxf_gNcQ47tNnOFz4BDfvwt92QnQrS6kQGT6prRUG-98xJ4lxiPXut9o0lpiQO9lQfBd5Tu5szD26IH_cJ6YuVMWN=s320

 

Thus although the season is unlikely to go out as the lion it was advertised to last fall, there are also some signs that it may not exactly go out as a lamb, either. The month will like finish near average to slightly above average.

Raymie had a little lamb little lamb little lamb .. Raymie had a little lamb whose fleece did not have snow 

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5 hours ago, tavwtby said:

seriously dude, three times this season I had driveway glacier issues, I remember this happened I want to say 00-01? where it was just constantly chopping ice in driveway and walks

Three times?  More like 6 times here

One hood thing is my driveway and walkway are pretty much clear to the pavement now. 

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2 hours ago, PhineasC said:

18z GFS was really close to getting NNE through the torch period with a net gain in snow. 

We got some bread and butter coming over the next 72 hours.  Would be nice to avoid some rain late weekend or early week but I think it'll happen at some point.  Hopefully it's a net gain though.

Next 72 hours should feature some snow across the mountains/ski country though.  Southwest flow then northwest flow.  WAA then CAA....the tide comes in and then the tide comes out, hopefully plenty of seaweed gets caught on the peaks.

ecmwf-deterministic-vt-total_precip_inch-6330400.thumb.png.a86033a26bffe438cd863307d29acbc1.png

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