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February 4th-6th Overunning & Possible Coastal Threat


IsentropicLift

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It becomes a bit more drastic through HR 84. The Secondary Low forms over Ocean City, MD.

I've been calling for a secondary forming near Ocean City Md for days now. The coast will have trouble regardless is the 850 low hangs on too long to the west

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Still warm and mostly rain.

 

Pretty close call for all snow on this run. It seems that the GFS may still have some problems translating the mid level changes towards the surface. 

 

 

I've been calling for a secondary forming near Ocean City Md for days now. The coast will have trouble regardless is the 850 low hangs on too long to the west

 

 

Nice call. :)

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I've been calling for a secondary forming near Ocean City Md for days now. The coast will have trouble regardless is the 850 low hangs on too long to the west

 

In Euro/GGEM solution the island will get to 33-34 tops, 850's might not even get much above 0c if the GGEM verified. Think this is snow to ice to light rain in the end. There's no south wind component at all which will help keep the coast colder.

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I've been calling for a secondary forming near Ocean City Md for days now. The coast will have trouble regardless is the 850 low hangs on too long to the west

History argues for a transfer to generally occur no further north than that, usually if it does not occur by then it won't at all and given the signal it was trying to occur in the pressure bagginess you figure the GFS had to come around eventually

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In Euro/GGEM solution the island will get to 33-34 tops, 850's might not even get much above 0c if the GGEM verified. Think this is snow to ice to light rain in the end. There's no south wind component at all which will help keep the coast colder.

Yea I saw that earlier but if you take a blend of all guidance we are still slightly too warm.

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History argues for a transfer to generally occur no further north than that, usually if it does not occur by then it won't at all and given the signal it was trying to occur in the pressure bagginess you figure the GFS had to come around eventually

 

Also, notice the isobars from the HP over Southern Canada? That has been intensifying on every run. So that's a signal that the confluence will become stronger in the future runs. 

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It's not just the surface low transfer, keep in mind the 850 and 925 lows have to transfer as we'll. Those lows going NW of us means at least sleet mixing in. That's what we have to look for. The secondary low can't just be an appendage, it has to really take over.

This! Been saying this as well. I think the GGEM or Euro showed this earlier. We have so many threats and model runs that they are becoming blurred.

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I know that the H5 synoptics aren't exactly the same from 1/11/11 Vs. 2/5/14, but you can see similarities in terms of the storm transferring on the 1/11 storm Vs. the 2/5 storm. 

 

http://www.meteo.psu.edu/~fxg1/NARR/2011/us0112.php

 

I looked at the 00Z GFS for a connection and the storm from 1/11 has an earlier transfer near OBX and the GFS has the transfer near Ocean City, MD. 

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