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Currently monitoring guidance for March late 3rd through the 4th for the next ( beyond the 28th) significant event


Typhoon Tip
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  • Typhoon Tip changed the title to Currently monitoring guidance for March late 3rd through the 4th for the next ( beyond the 28th) significant event
7 hours ago, The 4 Seasons said:

Good 00Z runs overall.

Euros in a pretty good spot for most, GFS well north (but came south a bit), GEM farthest south and barely a scrape job.

Best to use ensembles at this time lead but thats where the ops are at. 

For what it's worth ...

- the 00z GGEM is a subtle S/weak outlier compared to it's GEPs mean, but the whole mean seems - to me - as though it has too much negative interference.   Not sure why that is...or if that assessment turns out correct.

- the 00z EPS is a classic Miller B, but the low doesn't deepen so well post that commitment. Hmm prooobably owing to the attenuation of the total mechanical manifold of the system, which is a nod to GGEM but it may also be more correct if the GGEM does indeed prove just too heavy handed there.

- the GEFs are doing the same thing, but the entire space is massively so much more powerful than either of the two above... it has to conserve that and ends up sufficiently strong enough to imply a major event (despite a weaker post commited Miller B take over) anyway.  That's differential aspect has been consistent now for days on this event... Interesting.  

Just a fun note on that.. the blend of the 00z and 06z is quintessential. It's fast moving ... taking a Miller B from S Jersey to somewhere between Cape Cod and the BM in just 6 hours, but, ...the region's already been in decent front side overrunning for 6-9 hrs at that point.  It's like a fast moving large system ...so it's still taking time to evolve thru by virtue of vastness.  It just moves an Arklatex low ( meaning pwat rich) along a perfect climo trajectory. Damn, why does that have to be 120 hours, right?

 

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8 minutes ago, SnoSki14 said:

Confluence is present but it's battling the SE ridge. 

I think your initial call will be correct unless the confluence really ramps up over the next few days. 

The UL blocking is favorable, but it's not collocated with deep cold. That's what makes this blocking setup much less impressive than the setup for Tues. This also means that you can get favorable surface track, "outside of the warm sector", but ptype issues remain, bc there's a lack of cold to tap.

Southern Canada has been warming since early last week; albeit from a very cold state.

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37 minutes ago, jbenedet said:

The UL blocking is favorable, but it's not collocated with deep cold. That's what makes this blocking setup much less impressive than the setup for Tues. This also means that you can get favorable surface track, "outside of the warm sector", but ptype issues remain, bc there's a lack of cold to tap.

Southern Canada has been warming since early last week; albeit from a very cold state.

Okay, but.. for winter enthusiasts,  I think it's cold enough - serviceable. 

The anomaly products are less constraining on the outlook for me, when the scalar assessments of the 2-meter ambient temperature, and the 850 thermal layout over the course of the total synoptic awareness/evolution...is/are deeply cold enough. 

I mean, these synoptic parameters could certainly change in the modeling moving forward... we'll see.

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