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Tracking February 6. Light to moderate event potential


Typhoon Tip
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51 minutes ago, weathafella said:

18Z Gfs looks like snow to mix but decent thump for 2025 standards.  Talking pike region and south.  Mostly snow nop 

Yeah looked a bit colder. Not buying it verbatim but maybe we can tick euro a little colder and at least get a bit of snow on the front end. 

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30 minutes ago, ORH_wxman said:

Yeah looked a bit colder. Not buying it verbatim but maybe we can tick euro a little colder and at least get a bit of snow on the front end. 

Been an exceptional year for shorter lead model fights.  96 hrs and these models are throwin haymakers …in 2025

 

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2 minutes ago, Damage In Tolland said:

18z Euro somewhat colder for Wed Nite event. Stays snow longer before mixing 

Yeah it did. I’d like to see another tick but it did give a couple of inches on the front. 
 

This isn’t a very juicy system anyway though, so I’m mostly hoping we can get a few inches and triple point the sfc low so we get a net gain. I’m not setting the bar very high on this one. But there’s def a model war. GFS doesn’t even come close to sniffing freezing over interior…even where the snow flips to sleet/ZR. 

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43 minutes ago, ORH_wxman said:

Yeah it did. I’d like to see another tick but it did give a couple of inches on the front. 
 

This isn’t a very juicy system anyway though, so I’m mostly hoping we can get a few inches and triple point the sfc low so we get a net gain. I’m not setting the bar very high on this one. But there’s def a model war. GFS doesn’t even come close to sniffing freezing over interior…even where the snow flips to sleet/ZR. 

You can kind of envision what may happen. 1-3 to start then few hours of sleet to zr inland and probably rot at 32 ish and places SE of a HVN to IJD to PVD line warm up above to plain rain for a bit . Being such a weak system that triple points with solid pack on ground from tonight and first part of that storm doesn’t scream warmth getting very far NW. GFS too cold probably 

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2 hours ago, Damage In Tolland said:

That’s how i envision it. Limited mixing , weak low , triple point. Keep it near 32 until west wind for a few hours ahead of cold front 

I’d like to see euro go another tick colder, but yeah, we might get a net gain out of this if we can keep that triple point low coherent enough. 
 

06z euro was like 2-3” for the pike region before the flip. Maybe just a smidge less for your area. 

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2 hours ago, CoastalWx said:

Gfs keeps areas below 32 until we mix out with fropa. 

This is the way I have been leaning ...more GFS in this synoptic circumstance.

This is more of an intangible - meaning difficult to put in empirically backed terms ... - but the Euro's decimal small bias to back hold events, tends to tip the flow vaguely too much S-N.  Contrasting, the GFS with its decimal small speed bias, will tend to stretch the flow W-E.   

Before applying either of these models to the circumstantial hemisphere, that circumstance thus favors the GFS' handling in tis case.  Compression is making the GFS better this season on whole, btw.  LOL   

Like I said ..difficult to prove, because their handling biases are pretty vague at this point. But the ultra thread needle rifle patterns, decimals changes in track mean significant profile differences over smaller distances. Fwiw, I am noticing that of the corrections, altho small in either case, the Euro's been doing more of it.  

This is still also a blazing fast minor event - it's probably a good thing that this junket last night used up everyone's attention because this thing for the 6th is like a 3.5 hour burst of moderate snow, 1.5 hours of lighter pingers, ending as drizzle or valley freezing drizzle.  3-4" maybe a 5"  and I like your story line there where the temp pops with the occluded boundary.  Could jump from 34.5 ish to 43 for an hour or two with mad dripping.  Kind of like a 00z UKMET on whole. Fast fast fast.  I'm even imagining this thing speeding up if anything by an hour or two.

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20 minutes ago, ORH_wxman said:

I’d like to see euro go another tick colder, but yeah, we might get a net gain out of this if we can keep that triple point low coherent enough. 
 

06z euro was like 2-3” for the pike region before the flip. Maybe just a smidge less for your area. 

These usually are 1-3” south of 90 to ice here while IJD to Ginx gets above freezing. Reggie has quite a period of zr 

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It may snow pretty hard for a couple hours in NE Mass in that Euro solution.   Even with Pivotal's 6-hourly cinema speed, it looks to me like there's a pretty good isentropic burst between hours 84 and 90, which probably means blossoms intensity on the ground up there.   I'm not looking at any interpretive MOS-related graphics...just noting the QPF distribution/surge from Brian's to E of Boston axis that suddenly appears at hour 90. 

In fact, all the guidance I've seen now are doing something similar.  Its a matter of when in the total system translation.  The UKMET has the "in like a wall" look at 87 over western zone.  Kind of like it's flurries to 1/4 mi vis in 5 to 10 minutes.  GGEM is pure sleet event - bit of an operational outlier but possible...  The GFS brings those 2.24" diameter jagged-edged cotton ball thumpers before flipping the Pike to drizzle. 

 

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