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January Banter


Reb

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I give up on Mid South snow. Time to live vicariously on the East Coast from DC to BOS, esp Philly and NYC. They are getting hammered. Fun to read their obs threads.

not really, the fact that the southern apps to the northern apps are below average in snow while coastal areas are above in a +nao is rather depressing.
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Rough season for MRX. Very little of the advisory area looks to verify. Warning-criteria mountain snow may also be a stretch at this point.

I can't hold much blame for them, the models have been absolutely awful this year, even 24 hours out. The 00z GFS last night missed this forecast by a mile. As did the NAM, and SREF.

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I can't hold much blame for them, the models have been absolutely awful this year, even 24 hours out. The 00z GFS last night missed this forecast by a mile. As did the NAM, and SREF.

Agreed. The GFS was awful well into the onset of the event, actually. The HRRR painted widespread heavy snow across the Tri-Cities between 1 and 3 PM. Yikes, what a mess.

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If y'all don't mind, I have a question. It has seemed in years past that the models, however divergent they may be at long range, have for the most part came together in agreement the closer we get to an event (i.e., 24 to 36 hours). This year it seems that this is not the case. There is a wide spread varience right up to the the time of the event and more often than not, there are some pretty big misses among the models. My question is, why this year?

 

Is it something "off" in the models? Meaning are they keying on certain parts of the existing pattern and over/under stating it? Is it the particular bias(es) of the models coming into play? Or is it merely the difficulty of getting an accurate handle on the type of systems we're having...like giving too much moisture to the Cutter type systems we're experiencing? I know the variances have always been there between the models even at event time but it seems this year there is a greater spread. Or is it just my imagination?

 

Not a whine...just an honest question! You know, one of my college professors used to say that there is no such thing as a stupid question; just a lot of stupid people who ask questions. :whistle:

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I honestly don't know that they are that bad overall, they just seem to be struggling with our area for whatever reason. Now for our area, they are as bad inside 48 hours as I've ever saw. 

 

Thanks for the reply, John. Yep, I should have specified that the question was directly related to our area and not overall!

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ECMWF Deterministic FORECAST FOR: BNA LAT= 36.12 LON= -86.68 ELE= 591
                                            12Z JAN22                 2 M     850     SFC     SFC     700    6 HR     500    1000                  TMP     TMP     PRS     RHU     RHU     QPF     HGT     500                  (C)     (C)    (MB)    (PCT)   (PCT)   (IN)    (DM)     THK WED 12Z 22-JAN -11.3   -12.6    1025      59      85    0.00     541     522    WED 18Z 22-JAN  -3.3   -12.2    1022      32      46    0.00     544     527    THU 00Z 23-JAN  -4.5   -11.9    1021      46       8    0.00     546     530    THU 06Z 23-JAN  -5.9   -11.7    1024      58       7    0.00     548     530    THU 12Z 23-JAN  -6.5   -14.5    1029      53      11    0.00     548     526    THU 18Z 23-JAN  -7.5   -16.8    1036      28       9    0.00     547     520    FRI 00Z 24-JAN  -9.2   -20.0    1038      30       7    0.00     544     515    FRI 06Z 24-JAN -11.8   -19.6    1041      42      11    0.00     539     508    FRI 12Z 24-JAN -12.6   -16.9    1040      45       4    0.00     549     519    FRI 18Z 24-JAN  -4.6    -7.6    1035      25       7    0.00     554     528    SAT 00Z 25-JAN  -4.4    -3.1    1026      26       4    0.00     552     532    SAT 06Z 25-JAN  -3.6    -3.2    1020      26      56    0.00     551     535    SAT 12Z 25-JAN  -1.3    -2.4    1013      33      96    0.00     550     539    SAT 18Z 25-JAN   5.5    -3.9    1013      35      31    0.00     550     540    SUN 00Z 26-JAN  -2.0    -5.9    1015      67      18    0.00     552     540    SUN 06Z 26-JAN  -4.1    -5.3    1015      70      49    0.00     554     542    SUN 12Z 26-JAN  -2.4     1.4    1012      81      64    0.00     554     545    SUN 18Z 26-JAN  10.4     6.1    1007      43      42    0.00     553     548    MON 00Z 27-JAN   1.6     1.0    1007      82      36    0.00     551     545    MON 06Z 27-JAN   0.4    -4.9    1013      74      16    0.00     548     537    MON 12Z 27-JAN  -5.4   -16.0    1021      31       3    0.00     543     528    MON 18Z 27-JAN  -4.3   -18.2    1024      20       4    0.00     540     522    TUE 00Z 28-JAN  -7.3   -19.5    1027      20      17    0.00     536     515    TUE 06Z 28-JAN -13.4   -23.0    1031      27      12    0.00     532     508    TUE 12Z 28-JAN -16.1   -22.5    1033      30      23    0.00     528     504    TUE 18Z 28-JAN -10.1   -23.4    1033      21      20    0.00     528     503    WED 00Z 29-JAN -12.2   -22.2    1032      27       9    0.00     529     504    WED 06Z 29-JAN -12.7   -20.2    1034      32      13    0.00     531     505    WED 12Z 29-JAN -12.4   -17.7    1035      33      22    0.00     533     507    

Bone dry

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