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Febuary 9-11 threat


Allsnow

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My comment would be plain and simple. There is a reason that the Euro has the highest global accuracy scores. End of comment.

thoughts on the gfs's handling of the s/w? it flattens it out and doesnt dig as much as the euro. Also the 50/50 low, the gfs kind of hangs back the low to the SW in Canada which drags the PV to the SE and flattens heights on the East coast. The euro has it almost as a seperate entity. Pretty significant upper level differences

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18z big improvements at H5. This has the classic gonna move NW look.

Yeah i feel alot better that we saw improvments on the gfs....being we are 4-5 days out...i really feel we are not in a bad spot...euro came west from last night...its mean is further nw then 00z and the idv has alot of nw members.....

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Yeah i feel alot better that we saw improvments on the gfs....being we are 4-5 days out...i really feel we are not in a bad spot...euro came west from last night...its mean is further nw then 00z and the idv has alot of nw members.....

Certainly cold air available too, we won't have any issue there

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The one thing I do know for sure is Tulsa is going to have more snow on the season than some Midwest cities by the time this storm is ready to possibly come up the East Coast...we're talking possibly 30 inches on the season.

Is it going to be their alltime snowiest season, SG? We dont normally associate cities of such southern lattitude with big snowstorms lol.

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The shortwave diving down from Canada through California this time is further west and diving deeper into Central Arizona. The other shortwave diving down from Central Canada is also further west diving down toward MN this time instead of Wisconsin. I can only assume that this would mean a better chance of a phase, bringing this thing further up the coast.

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The GFS at 90 hrs from the previous run had the southwest shortwave over New Mexico and the NAM at 84 hrs this run has the shortwave further west over Arizona. Also the GFS had a strung-out and elongated shortwave across all of southeast Canada and the NAM has a shortwave much more U-shaped with the energy consolidated in the base of the trough that has dug down into Wisconsin through 84 hrs.

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I just matched up the NAM 500mb charts at 84 hrs this run vs. the ECMWF 500mb charts at 96 hrs from the previous run (same effective times), and THEY ARE ALMOST A PRECISE MATCH! The NAM would probably yield an even slightly more vigorous storm closer to the coast though as the energy is slightly more vigorous on the NAM and slightly further west. But the BOTH have the western energy in Arizona at that time and the Northern energy diving into Wisconsin near the base of that U shaped trough. Overall though, the NAM's 500mb chart looks slightly more vigorous than even the ECMWF. The GFS looks sadly lost in comparison, but what else is new.

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I just matched up the NAM 500mb charts at 84 hrs this run vs. the ECMWF 500mb charts at 96 hrs from the previous run (same effective times), and THEY ARE ALMOST A PRECISE MATCH! The NAM would probably yield an even slightly more vigorous storm closer to the coast though as the energy is slightly more vigorous on the NAM and slightly further west. But the BOTH have the western energy in Arizona at that time and the Northern energy diving into Wisconsin near the base of that U shaped trough. Overall though, the NAM's 500mb chart looks slightly more vigorous than even the ECMWF. The GFS looks sadly lost in comparison, but what else is new.

NAM is equally unreliable at 84 hours and so far west that you'd again have to be concerned about an eventual low track too far to the west. Fasten your seatbelt for the flip/flopping. I think we have a long way to go before model solutions are reliable on this storm.

WX/PT

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NAM is equally unreliable at 84 hours and so far west that you'd again have to be concerned about an eventual low track too far to the west. Fasten your seatbelt for the flip/flopping. I think we have a long way to go before model solutions are reliable on this storm.

WX/PT

Yeah, mixing seems to be a concern-- especially if a hit is shown from 5 days out lol. Did you see the LC piece in the other thread? Mixing all the way to the Apps.... it would be ironic if we get an I-95 track (meaning the low tracks over I-95) when we were all worried about OTS.

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Yeah, mixing seems to be a concern-- especially if a hit is shown from 5 days out lol. Did you see the LC piece in the other thread? Mixing all the way to the Apps.... it would be ironic if we get an I-95 track (meaning the low tracks over I-95) when we were all worried about OTS.

Maybe you misunderstood what I was saying. My concern is getting a reliable solution from a model. I think it could be several days before there are reliable solutions or trends. I do not think we are even close to worrying about "mixing" or a track over I-95.

WX/PT

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Maybe you misunderstood what I was saying. My concern is getting a reliable solution from a model. I think it could be several days before there are reliable solutions or trends. I do not think we are even close to worrying about "mixing" or a track over I-95.

WX/PT

I agree with this. Just look at the way the storm today was modeled.

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Maybe you misunderstood what I was saying. My concern is getting a reliable solution from a model. I think it could be several days before there are reliable solutions or trends. I do not think we are even close to worrying about "mixing" or a track over I-95.

WX/PT

I dont think we will have a fix on this until the early week storm is off the coast. But it seems as though most mets are more worried about mixing rather than OTS.

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