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Jan 25/26 Storm Part IV


burgertime

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Okay, I'll put this in the new thread.

This is from the Asheville Citizen Times quoting NWS, which is one of the 1st accumulation projections I've seen(other than Andy Wood:

ASHEVILLE — The Asheville area likely will get another fairly significant snow Tuesday and Wednesday.

According to the National Weather Service, the city could get 2-3 inches of snow as a storm system moves up from the Gulf and collides with cold air over the mountains. Higher elevations to the north and west of Asheville could get 3-7 inches, Weather Service meteorologist Doug Outlaw said this afternoon.

"Most of the accumulation should be late Tuesday night, from about midnight on, through about sunrise Wednesday," Outlaw said.

It seems like with a system that dynamic, there would be more accumulation. Of course, 18z is dry. It's amazing how difficult forecasts have been this winter.

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FYI:

Bad news from the NWS HQ, they've sent an administrative message indicating there are a lot of missing obs from the upper air balloon release today throwing a real wrench in forecasting models. Two of the sites AWOL are Peachtree City, GA and Birmingham, AL. This means if today's model cycles show big changes we won't know if its significant or a result of bad data ingest. Thankfully, there is time for them to fix it before we get to Wednesday.

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Yea looks like the NAM...still anything on the table is for that low what a disaster this storm has become.

@39 it's heading inland this will not look like the NAM

Really? I was thinking this was going to be east of the Euro, but I am probably wrong. Atleast at 42 it's not as neutral as the 12z Euro at 48.

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FYI:

Bad news from the NWS HQ, they've sent an administrative message indicating there are a lot of missing obs from the upper air balloon release today throwing a real wrench in forecasting models. Two of the sites AWOL are Peachtree City, GA and Birmingham, AL. This means if today's model cycles show big changes we won't know if its significant or a result of bad data ingest. Thankfully, there is time for them to fix it before we get to Wednesday.

Agreed. I'm not looking at a model until tomorrow.

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I brought some mojo to the coast

You did, like 6" or more. Can you do that here?:yikes:

Okay, I'll put this in the new thread.

This is from the Asheville Citizen Times quoting NWS, which is one of the 1st accumulation projections I've seen(other than Andy Wood:

ASHEVILLE — The Asheville area likely will get another fairly significant snow Tuesday and Wednesday.

According to the National Weather Service, the city could get 2-3 inches of snow as a storm system moves up from the Gulf and collides with cold air over the mountains. Higher elevations to the north and west of Asheville could get 3-7 inches, Weather Service meteorologist Doug Outlaw said this afternoon.

"Most of the accumulation should be late Tuesday night, from about midnight on, through about sunrise Wednesday," Outlaw said.

It seems like with a system that dynamic, there would be more accumulation. Of course, 18z is dry. It's amazing how difficult forecasts have been this winter.

That reminds me of my dad calling me this morning to tell me he saw in the paper here about snowfall X accumulations, where there was a quote for X amount (can't remember). I guess the papers get a hold of this a little prematurely, but its the news I guess. A little early for amounts , imo. It could be a little, a lot , or even nothing more than a slushy inch or 2. Isn't that how a lot of our systems go. This isn't like the last one where we knew it was coming without a doubt, because all the models are just now evolving this system. None of them are exact, but they all agree about a pretty strong 5H travelling in lower Alabama/Ga and strengthening to closed status by eastern NC. Usually, that hits western NC mtns pretty hard. But whats missing is cold air this go round. Very unusual to see a lack of cold air with this, and I'm wondering why something coming out of Canada this time of year has such little cold air. Doesn't make much sense to me. But we'll soon find out!

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FYI:

Bad news from the NWS HQ, they've sent an administrative message indicating there are a lot of missing obs from the upper air balloon release today throwing a real wrench in forecasting models. Two of the sites AWOL are Peachtree City, GA and Birmingham, AL. This means if today's model cycles show big changes we won't know if its significant or a result of bad data ingest. Thankfully, there is time for them to fix it before we get to Wednesday.

That would make a ton of sense this run has just about the perfect track for snow for us it looks like if it was cold enough :D

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In ancient times, when a curse had fallen on a tribe or a country, they would offer up a sacrifice. Seeing as how we just had a sacrifice maybe the snow Gods will consider a self sacrifice good enough and change the mojo. :lmao: :lmao:

Come on guys, let's back up punt and bring in some dynamic cooling!:wub:

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The soundings for KAVL (Asheville Regional) and KMRN (Morganton-Lenoir) are creeping closer and closer with each GFS run.

At 72 hours, Asheville is freezing or below all the way down to 900 mb and its only 1.2 at the 900mb level. At Morganton-Lenoir its 1.3 at 850 and 2 at 900mb.

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Date: 3 day AVN valid 18Z WED 26 JAN 11
Station: 35.31,-81.23
Latitude:   35.31
Longitude: -81.23
-------------------------------------------------------------------------------
LEV PRES  HGHT  TEMP  DEWP  RH  DD   WETB DIR SPD THETA THE-V THE-W THE-E   W
    mb     m     C     C    %   C     C  deg knt   K     K     K     K    g/kg
-------------------------------------------------------------------------------
 0 1000    67                                                                 
SFC  977   254   2.4   2.1  97  0.4   2.3 330   9 277.4 278.2 276.6 289.8  4.55
 2  950   483   2.4   0.5  87  1.9   1.6 348  21 279.7 280.4 277.3 291.2  4.17
 3  900   918  -0.0  -1.5  90  1.4  -0.6   5  30 281.5 282.1 277.7 292.1  3.81
 4  850  1376  -0.5  -1.4  94  0.9  -0.9  21  26 285.7 286.4 280.1 297.2  4.07
 5  800  1860  -0.9  -1.4  96  0.5  -1.2  38  20 290.2 290.9 282.4 302.6  4.31
 6  750  2375  -2.3  -2.7  97  0.5  -2.5  59  13 294.1 294.9 284.0 306.4  4.17
 7  700  2921  -4.4  -4.8  97  0.4  -4.6  77   8 297.6 298.3 284.9 309.1  3.83
 8  650  3502  -7.3  -7.6  97  0.4  -7.4 101   4 300.7 301.3 285.6 310.9  3.31
 9  600  4122 -10.8 -11.2  97  0.4 -10.9 108   1 303.6 304.1 286.1 312.1  2.70
10  550  4786 -15.0 -15.4  97  0.4 -15.1 325   2 306.3 306.7 286.4 313.0  2.10
11  500  5500 -20.0 -20.2  98  0.2 -20.0 331   7 308.7 309.0 286.6 313.7  1.53
12  450  6272 -26.2 -26.5  98  0.2 -26.3 330  14 310.3 310.5 286.6 313.6  0.98
13  400  7112 -33.1 -33.3  98  0.2 -33.1 332  22 312.0 312.1 286.7 314.0  0.58
14  350  8034 -40.9 -41.2  97  0.3 -40.9 336  29 313.6 313.6 286.9 314.6  0.30
15  300  9069 -45.7 -52.9  44  7.2 -46.0 281  10 321.0 321.0 289.2 321.3  0.09
16  250 10287 -44.7 -63.9  10 19.3 -45.3 255  34 339.7 339.7 294.3 339.8  0.03
17  200 11772 -47.5 -66.9   9 19.4 -48.1 264  50 357.5 357.5 298.2 357.6  0.02
18  150 13644 -54.6 -72.6   9 18.0 -54.9 269  58 376.0 376.0 301.6 376.1  0.01
19  100 16185 -61.9 -82.3   5 20.3 -62.1 264  44 408.1 408.1 306.3 408.1  0.00
TRP                                             0                              
WND                                             0                              

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I"m starting to agree with tarheelwx from yesterday. If we can get this thing to come in just abit later, like 6 hours or so, tuesday night, i think things may actually be a bit colder at the surface. part of the problem is this is coming into NC right at the peak sun angle.

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You can tell the GFS is having a hard time with temps...local bullseyes of low 850's one is right over Widre's house.

Yep. We'll continue to see that too, esp. in the NAM I think as it tries to see dynamic cooling. If you notice , the spread between 850 contours is large over a geographic region, indicative of not a lot of WAA at 850, and with the lack of anything much above zero at 850, then it won't be that hard to bring flakes to the surface. All that will be needed is good lift , and of course elevation really helps...as does time of day. Anyway, I think this run didn't fully absorb the vort coming into the Midwest, so its not that strong of a cutoff, but does still cutoff. Thats going to be a big player. As it stands now though, this animation shows how a good it could be for areas just to its north and west, generally in a line from northern Ala to central NC, as that is the period that everything is going to be maximized to the fullest for the snow potential of this, when the air is coldest, the lift is greatest, the 7H moisture and deformation band is working its hardest. All that basically still points to n. Ala, Ga, eTN, w NC and maybe w SC but downslope here may hurt in the Upstate and in the western Piedmont of NC, not to mention a terrible time of day for it's arrival. I think the Mtns still look good though for the best chance.

post-38-0-31003400-1295821180.gif

post-38-0-81572200-1295821205.gif

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As a matter of fact, this aint too far from a heavy wet snow sounding for KCLT:

Date: 3 day AVN valid 18Z WED 26 JAN 11
Station: KCLT
Latitude:   35.22
Longitude: -80.93
-------------------------------------------------------------------------------
LEV PRES  HGHT  TEMP  DEWP  RH  DD   WETB DIR SPD THETA THE-V THE-W THE-E   W
    mb     m     C     C    %   C     C  deg knt   K     K     K     K    g/kg
-------------------------------------------------------------------------------
 0 1000    66                                                                 
SFC  983   206   2.5   2.0  96  0.5   2.2 329  12 277.0 277.8 276.3 289.2  4.48
 2  950   481   1.5  -0.1  89  1.6   0.8 349  27 278.7 279.4 276.5 289.8  4.00
 3  900   914  -1.8  -2.3  96  0.5  -2.0   7  35 279.6 280.2 276.5 289.6  3.58
 4  850  1369  -1.3  -1.7  97  0.4  -1.4  29  26 284.8 285.5 279.6 296.1  3.98
 5  800  1853  -1.0  -1.3  98  0.3  -1.2  59  20 290.1 290.8 282.4 302.6  4.34
 6  750  2368  -1.9  -2.3  97  0.4  -2.1  94  16 294.5 295.3 284.2 307.2  4.30
 7  700  2915  -3.8  -4.2  97  0.4  -4.0 122  13 298.2 299.0 285.4 310.2  3.99
 8  650  3498  -6.6  -7.0  97  0.4  -6.8 144  11 301.5 302.1 286.1 312.1  3.47
 9  600  4119 -10.2 -10.6  97  0.4 -10.4 148   6 304.3 304.8 286.4 313.1  2.84
10  550  4784 -14.8 -15.1  97  0.4 -14.9 329   3 306.6 307.0 286.5 313.4  2.15
11  500  5498 -20.2 -20.5  98  0.2 -20.3 330  14 308.4 308.7 286.5 313.3  1.50
12  450  6269 -26.5 -26.7  99  0.2 -26.5 329  22 309.9 310.1 286.5 313.2  0.96
13  400  7108 -33.0 -33.1  99  0.1 -33.0 334  28 312.1 312.2 286.8 314.1  0.59
14  350  8031 -41.0 -41.3  97  0.3 -41.0 337  33 313.4 313.5 286.9 314.5  0.29
15  300  9066 -44.8 -57.8  22 13.0 -45.3 268   9 322.2 322.2 289.5 322.4  0.05
16  250 10287 -44.5 -65.1   8 20.6 -45.2 250  35 339.8 339.9 294.3 339.9  0.02
17  200 11775 -47.4 -66.9   9 19.4 -48.0 259  50 357.6 357.6 298.2 357.7  0.02
18  150 13645 -54.7 -72.5   9 17.8 -55.1 266  59 375.8 375.8 301.6 375.9  0.01
19  100 16187 -62.1 -82.3   5 20.2 -62.3 262  45 407.8 407.8 306.2 407.8  0.00
TRP                                             0                              
WND                                             0                           

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