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Jan 22-23 East Coast Storm Discussion


Wow

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I know most of the attention is focused at the carolinas but i wanted to point out that there is a chance of some modest freezing rain amounts thursday morning across northeast ga with the initial stages of this system. A lot will depend on just how low temps get tomorrow/tomorrow evening after saturation from the weak wave tomorrow. Wetbulbs should be in the 26 to 29 range during the event tomorrow and  There really is no reason for temps to rise tomorrow night..indeed models generally take temps down a notch or two by 12z thursday with temps bottoming out at around 30 or 31 by 12z thur.  However toward the predawn hours most models are starting to begin to bring precip back into the area..especially by 12z. Since the models are already at freezing or slightly below, it seems reasonable that if we are able to reach wetbulb temps or close to them it stands to reason it will take a bit longer to warm up thursday.

 

There is no fresh cold air source so if temps start subfreezing latent heat release will likely bring temps back to above freezing by mid day or so..however models are showing 0.25 to maybe as much as a half inch of precip by 18z. Best chances are in the mountains and northeast of gainesville obviously. Again not a huge deal but considering there could be some snow cover, could make for some pretty scenery before being washed and melted away.

 

Will be interesting to see which models do better over nc and sc with the main system.  canadian is significantly colder than the gfs from the get go, as well as the arpege which probably explains why it's showing a lot more freezing rain.

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Same deal at 78..... colder in NC....rough eyeball test looks 2-4 degrees colder than 6z run at hr 84. 

very close to freezing now showing up in extreme ne ga and the upstate.  At this point, there stands a decent shot of freezing rain making it into the upstate.

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Joe Bastardi (@BigJoeBastardi)

1/19/16, 06:53

Upcoming Major league storm on east coast closest to Feb 5-6, 2010, Feb 16-18 2003. Would look for blend of amounts

Would love to see a repeat of Feb 2003 storm in the upstate if we cant' get snow.  We had about 3" of sleet with that storm.  However, one thing I remember about that setup was that the high pressure to the north was very strong.

 

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It just seems doubtful that the wedging is going to be so strong that it keeps the WAA at bay from a low that far north/west of the SE.  It's almost like something like you see on a 300 hour GFS, not 84 hour. 

 

Is it because of the transfer of the low to the coast that locks in the wedge? 

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It just seems doubtful that the wedging is going to be so strong that it keeps the WAA at bay from a low that far north/west of the SE. It's almost like something like you see on a 300 hour GFS, not 84 hour.

Is it because of the transfer of the low to the coast that locks in the wedge?

I think it's the strength and position of the high, if that's perfect, the low track doesn't really matter. I've seen severe ice storms here and it be 50-60 degrees in TN, with rain
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This storm really does look similar to Jan 96, except for the amount of cold air preceding the storm and high pressure strength. If the EURO is correct then the tracks are very similar as well. As of now i would expect snow to sleet to ZR for northern foothills, N of I 40, S of I 40 little snow, more sleet and possibly devastating ZR. 

 

http://climate.ncsu.edu/climate/winter_wx/database_details.php?e=144

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