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Rocktober Obs/DISCO


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CFS seems to offer up some blocking working in conjunction with a PNA pattern, so perhaps some early cool shots in the offing. Obviously this doesn't really mean much in terms of winter and if anything, it could be a subtle negative since there is a modest negative correlation with this month and the cold season.

 

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8 to 14 Day Outlook - Temperature Probability

All of that said, October is the first month that usually does offer some viable indicators that have some winter utility.

The MJO is one factor I will be keeping close tabs this month, as @bluewavehas made some pretty astute obs concerning the connection between amplified maritime forcing (phases 4-6) during the month of October and deviation or disconnect from this hostile paradigm during the ensuing cold season (2020-2021, 2021-2022). The recent seasons that had a lower amplitude during this month ended up having a higher amplitude during the winter, which  obviously kept the east milder with a greater dearth of a more wintry interlude.

 

 

 

 

 

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1 hour ago, CoastalWx said:

Sucks it’s October. 5 months until Morch.

mixed feelings ...

  if winter results in just about anything other that what the average of the last 8 years have been, i'll be interested ( though uneasy ) in seeing what that has to offer

  if winter results in the same as the average of these last 8 years, i dream of enough disposable financial liquidity to flee somewhere else and start a new life

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3 hours ago, HoarfrostHubb said:

Some cold shots appearing on modeling     Still just ghosts at this point. 

models would tend to sniff out the pattern base, and then the error and biases will be too much of whatever the base is ...   

ex,   if the "real" pattern basis is in a -pna ... the extended ranges will occasionally balloon heights too much.

if the pattern base is +pna ... we get these -3 standard deviation trough plumbing to indianapolis which aren't necessary ... yet very likely looking to winter enthusiasts ( of course )

having said that, yeeeah the last several years ( decadal and papered, too - ) have shown a propensity for transition season blocking - both ends.   october being one of those months...etc.  it's become almost reliable.. a persistence that sort of automatically lends confidence to it being annoyingly chilly too early in the year.  yay!

it's a new paradigm.  yeah yeah yeah, probably another in the compendium of other cc hammer to head aspects that people keep gaslighting themselves into believing are just the tickle shoulder taps of variability.  but it is what it is...  and, it's part and parcel to why we've been observing snow or snow supporting synoptics along approximately half the octobers since 2000, when the prior climate generation(s) never did ( usually).   only to then fade seamlessly into a wind enraged mid tropospheric shear shitty winter ass blow pattern. 

it's really just becoming unbearable ... much to the chagrin of all these wide-eyed enthusiastic seasonal forecasts for up our down in temp or snow or rain or whatever... all these winters have straight line torpedoed right through those convincing walls of reasons, to the same justification for setting up an escape plan to somewhere in the southern hemisphere.

 

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