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February Medium/Long Range Disco Thread 2


WxUSAF

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1 minute ago, Bob Chill said:

Not a good run. Precip shield is very small and temps lag too much. Strip NW of DC around .2 - .4 @ hr90 with temps in mid/upper 30's. Then some light stuff through 96. It's a crappy run. 

Where was its placement for the 0z run?

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Just now, Bob Chill said:

Not a good run. Precip shield is very small and temps lag too much. Strip NW of DC around .2 - .4 @ hr90 with temps in mid/upper 30's. Then some light stuff through 96. It's a crappy run. 

Had a feeling a se jog this run was coming.  It'll keep our attention for another day or 2, then cut our throats

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Just now, mitchnick said:

Had a feeling a se jog this run was coming.  It'll keep our attention for another day or 2, then cut our throats

It's not really a SE jog. It's just a little faster/weaker in general. In the grand scheme is a tiny shift with everything. In our yards it's a big one though. Good thing we get to do this every 6 hours for a day or 2. lol

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3 minutes ago, Bob Chill said:

It's not really a SE jog. It's just a little faster/weaker in general. In the grand scheme is a tiny shift with everything. In our yards it's a big one though. Good thing we get to do this every 6 hours for a day or 2. lol

Which is exactly what the gfs should have shown.  I don't think the energy is there on the gfs to create that storm.

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2 minutes ago, Maestrobjwa said:

And I wanna see if it'll indicate any more windows of opportunity afterward--just hoping for anything, lol

In this chaos, it's almost better to go with analogs, teleconnections, ensembles, then ops. lol

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Last night's eps compared to all other guidance is laughable!  That low just nw of Texas comes nowhere close to the the Eastern Seaboard.  With today's recent 12 hr nwp trends, watch what happens with the 12z eps

eps ecmwf-ens_z500_mslp_nhem_4 Feb 5_2017 0z.png

eps ecmwf-ens_z500_mslp_nhem_4 Feb 5_2017 0z hr 96.png

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21 minutes ago, Amped said:

The gefs members that put more emphasis on the 2nd shortwave at 102hrs are the ones that have the most snow.   The lead S/W on the OP will give us little if any snow and ruins the setup. Pray it trends weaker.

Its mean low placement looks ideal for us!  Temps aren't great this run, but the chaos is real.

 

gfs-ens_z500_mslp_nhem_16 February 5_2017.png

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5 minutes ago, psuhoffman said:

Para gfs has a east coast storm day 12. EPS had some support for that. That's the next window after this day 4 threat. Also agree we should root for a trend towards a slower solution and more emphasis on the trailing vort. 

Was the para updated recently?  It wasn't available for a while.

eta: check out the wave for next week..Holy smokes!

 

gfsp_mslp_pcpn_frzn_us_17 para February 5_2017 6z.png

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Para gfs has a east coast storm day 12. EPS had some support for that. That's the next window after this day 4 threat. Also agree we should root for a trend towards a slower solution and more emphasis on the trailing vort. 

Long long range enough individual members and op runs paint an alternative picture where we do suffer from higher heights due to the trough crashing the west coast but keep enough blocking to keep it from going to crap and seem close to a flip back cold. It's a minority but enough to hold hope the long range isn't totally lost yet. 

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6 minutes ago, BTRWx said:

Was the para updated recently?  It wasn't available for a while.

It's updating again.  It updates after the op and is  one run behind.  So 6z just updated.  It's a weenie run for sure.  Looks decent for day 4 also then some snow day 12 and a not awful pattern at the end  

IMG_0541.PNGIMG_0542.PNG  

 

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2 minutes ago, psuhoffman said:

Para gfs has a east coast storm day 12. EPS had some support for that. That's the next window after this day 4 threat. Also agree we should root for a trend towards a slower solution and more emphasis on the trailing vort. 

Long long range enough individual members and op runs paint an alternative picture where we do suffer from higher heights due to the trough crashing the west coast but keep enough blocking to keep it from going to crap and seem close to a flip back cold. It's a minority but enough to hold hope the long range isn't totally lost yet. 

If you squint really hard you can see the way out of the warm stretch on the GEFS. EPO ridge is building. Trough in the pac south of the western part of the aleutians. AO isn't positive. 

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4 minutes ago, psuhoffman said:

Just went back and added it in. But people were asking about the long range threat so I was referring to that but yes the para gfs is maybe the best run of the winter. That's not saying much lol 

I've been a fan of this year's para from the start. :D

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2 minutes ago, Bob Chill said:

If you squint really hard you can see the way out of the warm stretch on the GEFS. EPO ridge is building. Trough in the pac south of the western part of the aleutians. AO isn't positive. 

The way out is actually simple. Get the trough to either weaken or retrograde off the west coast (pretty much get it to do anything other then sit there) and given the other drivers we would quickly see heights lower across the southern conus with a southern storm track and highs to our north. Forget really cold but that's workable for some late season wet snow. Euro weeklies took us down that path but I'd like to see us get there just a few days sooner to maximize potential before we hit the wall sometime in march.  The pattern has gone through some significant fundamental changes. There are still some problems and it's far from ideal but it's not nearly as hostile as most of December and January. I feel like we're finally moving the ball but we're down 17 points going into the 4th quarter.    Clock is ticking. 

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3 minutes ago, psuhoffman said:

The way out is actually simple. Get the trough to either weaken or retrograde off the west coast (pretty much get it to do anything other then sit there) and given the other drivers we would quickly see heights lower across the southern conus with a southern storm track and highs to our north. Forget really cold but that's workable for some late season wet snow. Euro weeklies took us down that path but I'd like to see us get there just a few days sooner to maximize potential before we hit the wall sometime in march.  The pattern has gone through some significant fundamental changes. There are still some problems and it's far from ideal but it's not nearly as hostile as most of December and January. I feel like we're finally moving the ball but we're down 17 points going into the 4th quarter.    Clock is ticking. 

Is that the WAR I see retreating? :popcorn:

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