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February Medium/Long Range Thread


stormtracker
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Still great. I like the distribution of the snow too. We all win here

Yea, gotta watch that trend though, H5 reminded me of the 00z Ukie there. I thought last nights Ukie was sort of a nice blend of all the models and boom 6z euro looks very similar at H5.

We’ll see what 12z brings


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Here's probably why the 6z is lighter. 0z kept the tpv intact while the 6z had split it and was starting to consolidate again as it approached the east coast. I think in future runs, should the tpv remain consolidated, you'll get those 2' numbers again.

trend-ecmwf_full-2025021506-f111.500h_anom.conus.gif

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1 minute ago, Heisy said:


Yea, gotta watch that trend though, H5 reminded me of the 00z Ukie there. I thought last nights Ukie was sort of a nice blend of all the models and boom 6z euro looks very similar at H5.

We’ll see what 12z brings


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The trend in the euro appears to be a large snowstorm :)

 

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Here's probably why the 6z is lighter. 0z kept the tpv intact while the 6z had split it and was starting to consolidate again as it approached the east coast. I think in future runs, should the tpv remain consolidated, you'll get those 2' numbers again.
trend-ecmwf_full-2025021506-f111.500h_anom.conus.gif.545b7ea98533b2734e26e8564e7b6d06.gif

Yep, most of the data looks like that outside the cmc (00z run) so im doubtful we see that reverse. I think that was just a correction run personally


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The trend in the euro appears to be a large snowstorm
 

Right but it was a big move towards like the icon at H5 with a stretched out shortwave. Like my Philly discord posters mention that could cause issues down the road for sure. Something to keep in mind.


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Just now, Heisy said:


Right but it was a big move towards like the icon at H5 with a stretched out shortwave. Like my Philly discord posters mention that could cause issues down the road for sure. Something to keep in mind.


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Yeah, I didn't like seeing that elongation. 

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Just now, Heisy said:


Right but it was a big move towards like the icon at H5 with a stretched out shortwave. Like my Philly discord posters mention that could cause issues down the road for sure. Something to keep in mind.


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I dunno man of course it COULD do a rug pull but it’s like 120 hours away with DC and Philly in the middle of a giant band of snow.  Pretty good spot.  Def not worried about whatever the icon is doing lol. 

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2 minutes ago, mitchnick said:

Yeah, I didn't like seeing that elongation. 

Otoh, if it keeps getting wound up, we run the risk of overamplication and resulting track issues. Fine line and I'm sure we'll beat the analysis of it over the next 5 days like a dead horse. Lol

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2 minutes ago, mitchnick said:

Otoh, if it keeps getting wound up, we run the risk of overamplication and resulting track issues. Fine line and I'm sure we'll beat the analysis of it over the next 5 days like a dead horse. Lol

I know it’s our tendency to do that but if you think about the big picture we are in a pretty great spot.  This is where we want to be.  5 days out from the storm, arctic air in place, euro showing a bomb, gfs slowly figuring it out.  Good ensemble support from EPS.  

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From sterling....

 

.LONG TERM /TUESDAY THROUGH FRIDAY/...
A cold dome of high pressure overhead will move off to our north and
east on Wednesday. A low pressure system will quickly develop over
southeast Georgia around late morning or midday Wednesday, before
moving up the Eastern U.S. Coastline toward Cape Hatteras and
rapidly intensifying into a big winter storm Wednesday afternoon,
Wednesday night and into Thursday morning.

Temperatures on Wednesday will be about 10 to 15 degrees below
average only reaching near or slightly below or slightly above
freezing, setting the stage for some accumulating snowfall
widespread across our region.

The winter storm expected Wednesday into Thursday shows a track and
intensity that could equate to several inches of snow. This
particular winter storm is still 4 to 5 days out from now so there
remains some uncertainty as to the exact track and exact intensity
and which model leans toward the best solution.

The NAM model only goes out as far as midday Tuesday and can only
show us signs of some front-running warm advection light snowfall
spreading east across the western Ohio Valley.

The GFS model shows a fast moving winter storm that could stay just
offshore from Georgia to the Outer Banks and then out to sea. Thus,
this track and speed would favor a few inches of snow across the
southeastern third of our region from midday Wednesday through late
Thursday.

The UKMET is between the GFS, and the models listed below.

The EUROPEAN model shows a strong winter storm that rides along
the coastline from Georgia to the Outer Banks, slows slightly
while moving north into southern New England, while rapidly
intensifying. Because this model shows the rapid intensification
between the mouth of the Chesapeake and New Jersey, it has much
more snow than the GFS in our region.

The CANADIAN shows a fast moving winter storm that rides along the
coastline as well with a similar amount of snow as the EUROPEAN but
may have its track a few miles inland which could decrease totals a
little.

Bottom line is that we may be looking a major winter storm but with
subtle to moderate uncertainties in terms of snow amounts
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Anyone have the 06z Euro Ens individual member plots?

I have it but I’m not going to post them. I haven’t seen them nor want too. 12z will be out soon enough. Enjoy your 17 for a few hours
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