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Central PA and The Fringes - February 2014 Part II


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  On 2/5/2014 at 7:00 AM, Wmsptwx said:

Mallow what's up in State college?

 

We've been in this sleety lull for a while. Waiting to see what this next band has in store. Per dual-pol products, the mixing line may be stuck just to our south (certainly hasn't progressed noticeably in the past half hour or so).

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  On 2/5/2014 at 6:59 AM, MAG5035 said:

Drop size probably plays a factor as well. A heavy rain with the finer droplets would likely still accumulate fairly well.

Hm thanks. Good point.

I did notice that they weren't too large at all during the Jeb walk. More like heavy drizzle and some smaller droplets mixed in

Using GS4 Tapatalk

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Based on ground reports from Cashtown and AlexP it seems like it is just a matter of 15 minutes until I start to switch back over to ZR.  Just measured 0.8" of sleet on the board.

 

Temp up just a bit but still holding at 27.0 degrees.  I guess the sign of the changeover will be the rising temps.  But, for the moment the pinging continues unabated.

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  On 2/5/2014 at 7:07 AM, Laurel Highlands Wx said:

Using dual-pol would you say areas along 219 that are in lighter returns freezing rain most likely? 

 

Using dual-pol, I'd say that the Cambria/Clearfield County line is where the snow/sleet line is. And it's not really moving right now.

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  On 2/5/2014 at 7:13 AM, Mallow said:

Using dual-pol, I'd say that the Cambria/Clearfield County line is where the snow/sleet line is. And it's not really moving right now.

 

Using dual-pol can you tell what is freezing rain and what is sleet? I am trying out a free trial of GR2 Analyst and am trying to learn.

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  On 2/5/2014 at 7:17 AM, Mallow said:

Even though dual-pol would suggest I might be getting snow right now, it's actually more like sleet than snow. But in reality, I'd characterize the precip as "very heavily rimed, partially melted and refrozen snow".

 

That's how it's been down here, it's hard for me to call it a true sleet that pounds holes in the snow when it falls. Lot's of snow grains too. Still some actual snowflakes making it down. 

 

Really haven't found any pronounced warming via mesoanalysis either. It seems that there could be a thin slightly above freezing layer somewhere between 850 and 700mb but both layers are still just below freezing near UNV. What is still deeply below freezing is the 925mb layer, which has the -6C isotherm dipping all the way south of Altoona. 

 

During writing this post snow has become the more dominant p-type again for the moment lol. 

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  On 2/5/2014 at 7:24 AM, Laurel Highlands Wx said:

Using dual-pol can you tell what is freezing rain and what is sleet? I am trying out a free trial of GR2 Analyst and am trying to learn.

 

Pure freezing rain would show up as similar to pure snow/rain. We don't have to worry about ZR up here any time soon.

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  On 2/5/2014 at 7:30 AM, Mallow said:

Pure freezing rain would show up as similar to pure snow/rain. We don't have to worry about ZR up here any time soon.

 

Thanks. I am not worried about ZR up here. Was just curious about back home. But since Indiana is 25 it would be a snow/sleet mix or sure. . 

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