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PTC Matthew


PaEasternWX

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And the Euro does a loop similar to the GFS, although its loop doesn't come all the way back down to the Bahamas/FL, like the GFS does - it does a 3/4 loop and then pivots and head back to the NE from ~100 miles east of the northern Bahamas at day 7 to ~200 miles east of Norfolk at Day 10 and heading NE (model stops there).  No loop for the CMC, for what it's worth - just heads NE from landfall along the OBX on days 3-4 to Nova Scotia on days 5-6.  Can't make this crap up.  

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A point for folks not well versed in meteorology or how numerical models work.  I see people saying things like, "maybe the models will shift back to where they were 2 days ago and show a hit for New Jersey."  We're now 4/5 days or less away from the event in the NJ area, for example, and with the models, on average, the error bars shrink significantly with each day closer to the event (as reflected by the "cone of uncertainty" track forecasts from the NHC, where the error bars go to essentially zero as one reaches the event, which makes sense).  Large model swings are simply far less likely closer to an event (at Day 4, for example) than further away from an event (at Day 6 for example).   Beyond 5 days, anything is possible - just look at the GFS and Euro tonight, lol.  

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Dropsonde in the northern eye measured 134 knots at 925 MB and 118 knots at 850 MB. Obviously those winds aren't making it down to the surface, but Matthew certainly seems to have potential to ramp back up today. Starting to see improvements from nearby radars on the eye structure. Pressure 963-964MB. 

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  On 10/5/2016 at 11:54 AM, isohume said:

Fujiwhara effect. 

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The Fujiwhara effect causes two cyclones to rotate cyclonically around each other. The loop being shown is an anticyclonic loop, due to Matthew feeling the impacts of the first trough, but ultimately getting missed by it, and being steered back southward and westward around the periphery of the newly building high to the north and west.

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  On 10/5/2016 at 12:11 PM, Mallow said:

The Fujiwhara effect causes two cyclones to rotate cyclonically around each other. The loop being shown is an anticyclonic loop, due to Matthew feeling the impacts of the first trough, but ultimately getting missed by it, and being steered back southward and westward around the periphery of the newly building high to the north and west.

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Yeah it's a combination and interaction of many things. It's a highly complicated pattern to model. Hate to work at the NHC right now.  

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  On 10/5/2016 at 12:32 PM, klw said:

Matthew is looking stronger over the past hour or so.

 

Q: Lets say the GFS actually verified- how high would Matthew rank on the scale of top ACE storms in the Atlantic?

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Certainly can't answer that with precision. However, the GFS was showing Cat 5 potential on the loop, which certainly would have to place it very high on the scale.

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  On 10/5/2016 at 12:21 PM, NJwx85 said:

Cuba gave Matthew all he could handle, but luckily that's well past him and we have some resemblance of an eye starting to reappear on IR.

 

mathew11.gif

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I would actually have hoped Cuba would have torn apart Matthew more....we don't need a cat 4 or 5 hurricane scraping the entire Florida coast. 

 

 

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Looks to me guidance is reaching somewhat of a consensus since 18z yesterday irt Florida. Guidance that was inland or had LF on the coast have adjusted a few ticks East ( a few still have LF but are slowly adjusting). Guidance that was 100+ miles East of FL coast have ticked West. All camps seem to be coming to a central point which would track Matthew 20-60 miles roughly off the FL coast. It will still be close enough for serious impacts but for those that key on actual landfall, I think we are lowering those chances as we get closer. Obviously anything could happen and a wobble could bring it onshore, but if you do the comparisons among the model camps since 18z yesterday, this is how I am seeing it.






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