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Potential storm February 12-13 2014


famartin

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This is for Philly... looks like about 0.4" qpf as snow then the temps go up up too high.. or do you count the periods when the 850s are < 0 but the surface is a bit above zero as potentially accumulating snow as well?  Because that would be another 0.5" qpf...

 

ECMWF Deterministic FORECAST FOR: PHL    LAT=  39.88 LON=  -75.25 ELE=    30

                                            12Z FEB12
                 2 M     850     SFC     SFC     700    6 HR     500    1000
                 TMP     TMP     PRS     RHU     RHU     QPF     HGT     500
                 ©     ©    (MB)    (PCT)   (PCT)   (IN)    (DM)     THK
WED 12Z 12-FEB -16.1    -9.5    1035      77       2    0.00     552     526    
WED 18Z 12-FEB  -4.6    -7.4    1033      52       2    0.00     554     528    
THU 00Z 13-FEB  -5.2    -6.5    1029      79      14    0.00     555     532    
THU 06Z 13-FEB  -4.7    -4.6    1024      88      98    0.05     553     535    
THU 12Z 13-FEB  -1.5    -1.6    1015      94      96    0.34     552     540    
THU 18Z 13-FEB   0.6     1.0    1003      93      95    0.37     548     546    
FRI 00Z 14-FEB   1.6     2.0     991      93      99    0.43     538     546    
FRI 06Z 14-FEB   0.7    -5.7     988      90      75    0.34     526     535    
FRI 12Z 14-FEB   1.0    -3.8     995      81      69    0.21     529     534    
FRI 18Z 14-FEB   4.4    -3.9    1000      54      16    0.00     534     534


 

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What's the old "Whetherman" statement from The Phantom Tollbooth?

 

"Tis better to know whether there will be weather than what the weather will be?"

 

Yell at me if you'd like, but I think CTP has handled this storm remarkably well. I think 10" is going to be the mean snowfall for a good portion of the CWA with dribs and drabs of 12s and 14s. 

 

Do remember folks: If you're telling your spouse/coworker/neighbor about this, and at the end they go out and jam a ruler in the snow, You'll hear: HEY YOU SAID WE'D GET A FOOT! I ONLY SEE 9"

 

Truth is, 13" could have fallen, but this is the gloppy stuff that our lower back's nightmares are made of.

 

Clean the snowboards often. I'm curious to see how it turns out for the potential mixers out east.

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What's the old "Whetherman" statement from The Phantom Tollbooth?

 

"Tis better to know whether there will be weather than what the weather will be?"

 

Yell at me if you'd like, but I think CTP has handled this storm remarkably well. I think 10" is going to be the mean snowfall for a good portion of the CWA with dribs and drabs of 12s and 14s. 

 

Do remember folks: If you're telling your spouse/coworker/neighbor about this, and at the end they go out and jam a ruler in the snow, You'll hear: HEY YOU SAID WE'D GET A FOOT! I ONLY SEE 9"

 

Truth is, 13" could have fallen, but this is the gloppy stuff that our lower back's nightmares are made of.

 

Clean the snowboards often. I'm curious to see how it turns out for the potential mixers out east.

Not to mention some measuring old snow "hey i got 20!"

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ECM snowmaps - about 8-10" philly, 11-12" n&w burbs, 13-15" allentown lehigh valley get best of CCB

6-7" south jersey

 

Right -- but it looks like not all of that is snow.  Those snow maps include sleet too, right?  In this case it looks like Philly is getting a good bit of sleet?

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This is for Philly... looks like about 0.4" qpf as snow then the temps go up up too high.. or do you count the periods when the 850s are < 0 but the surface is a bit above zero as potentially accumulating snow as well?  Because that would be another 0.5" qpf...

 

ECMWF Deterministic FORECAST FOR: PHL    LAT=  39.88 LON=  -75.25 ELE=    30

                                            12Z FEB12

                 2 M     850     SFC     SFC     700    6 HR     500    1000

                 TMP     TMP     PRS     RHU     RHU     QPF     HGT     500

                 ©     ©    (MB)    (PCT)   (PCT)   (IN)    (DM)     THK

WED 12Z 12-FEB -16.1    -9.5    1035      77       2    0.00     552     526    

WED 18Z 12-FEB  -4.6    -7.4    1033      52       2    0.00     554     528    

THU 00Z 13-FEB  -5.2    -6.5    1029      79      14    0.00     555     532    

THU 06Z 13-FEB  -4.7    -4.6    1024      88      98    0.05     553     535    

THU 12Z 13-FEB  -1.5    -1.6    1015      94      96    0.34     552     540    

THU 18Z 13-FEB   0.6     1.0    1003      93      95    0.37     548     546    

FRI 00Z 14-FEB   1.6     2.0     991      93      99    0.43     538     546    

FRI 06Z 14-FEB   0.7    -5.7     988      90      75    0.34     526     535    

FRI 12Z 14-FEB   1.0    -3.8     995      81      69    0.21     529     534    

FRI 18Z 14-FEB   4.4    -3.9    1000      54      16    0.00     534     534

 

IMO 6z-12z Friday is a snow sounding, especially at the rate it will be falling if Euro is correct.

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That last .55" would absolutely be snow with 850s below zero....the SFC is barely above freezing.....snow unless some other levels there are above freezing as well.

This is for Philly... looks like about 0.4" qpf as snow then the temps go up up too high.. or do you count the periods when the 850s are < 0 but the surface is a bit above zero as potentially accumulating snow as well?  Because that would be another 0.5" qpf...

 

ECMWF Deterministic FORECAST FOR: PHL    LAT=  39.88 LON=  -75.25 ELE=    30

                                            12Z FEB12
                 2 M     850     SFC     SFC     700    6 HR     500    1000
                 TMP     TMP     PRS     RHU     RHU     QPF     HGT     500
                 ©     ©    (MB)    (PCT)   (PCT)   (IN)    (DM)     THK
WED 12Z 12-FEB -16.1    -9.5    1035      77       2    0.00     552     526    
WED 18Z 12-FEB  -4.6    -7.4    1033      52       2    0.00     554     528    
THU 00Z 13-FEB  -5.2    -6.5    1029      79      14    0.00     555     532    
THU 06Z 13-FEB  -4.7    -4.6    1024      88      98    0.05     553     535    
THU 12Z 13-FEB  -1.5    -1.6    1015      94      96    0.34     552     540    
THU 18Z 13-FEB   0.6     1.0    1003      93      95    0.37     548     546    
FRI 00Z 14-FEB   1.6     2.0     991      93      99    0.43     538     546    
FRI 06Z 14-FEB   0.7    -5.7     988      90      75    0.34     526     535    
FRI 12Z 14-FEB   1.0    -3.8     995      81      69    0.21     529     534    
FRI 18Z 14-FEB   4.4    -3.9    1000      54      16    0.00     534     534


 

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Right -- but it looks like not all of that is snow.  Those snow maps include sleet too, right?  In this case it looks like Philly is getting a good bit of sleet?

Don't think too much sleet, after the thump of snow a bit of dryslot light rain to snow with backend of CCB

 

But you never know because that is "sleet country" as Rob says

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25ga0l2.gif

 

I know it is a weenie radar, but it is still hard to believe that a radar like that is not going to result in a 12"+ for the entire Philly area.  Then again, it is a measure of the kind of year the area is having when we get disappointed that a storm is ONLY looking like it will give us 6".     

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Don't think too much sleet, after the thump of snow a bit of dryslot light rain to snow with backend of CCB

 

But you never know because that is "sleet country" as Rob says

 

 

This might sound like a dumb question and I know what it really "Means", but whats the true term for CCB?

 

Thanks

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