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February storm threat discussion


Ellinwood

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it looks mostl like it has and/or other models have. we'll get some precip probably mainly from the front but perhaps with some enhancement from any wave. the trough is still too progressive without full phase in the right spot. it's not going to happen.

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the trough needs to be sharper (less broad and round at the bottom for the newbies) in order to pull the storm close enough to the coast

http://mag.ncep.noaa.gov/NCOMAGWEB/appcontroller?prevPage=Param&MainPage=indexℑ=&page=Param&cycle=02%2F09%2F2012+00UTC&rname=UPPER+AIR+PARMS&pname=500_vort_ht&pdesc=&model=NAM&area=NAMER&cat=MODEL+GUIDANCE&fcast=057&areaDesc=North+America+-+US+Canada+and+northern+Mexico&prevArea=NAMER&currKey=model&returnToModel=&imageSize=M

the problem is, it's so broad it isn't even progged to hit ENE with more than a scrapper

and, if you check surface temps on the NAM, we're above freezing when that .1" qpf falls aaaaaaaagain

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we know this how this story goes....the NAM will keep improving for the next 24-36 hours with at least one run with 0.30"+ QPF and a cold boundary layer.....Canadian will show a full phase and a 976mb low off of Ocean City, MD........Euro will show 0.07" of QPF with surface temps in the upper 40s.....guess which model will be closest to the final solution?

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the trough needs to be sharper (less broad and round at the bottom for the newbies) in order to pull the storm close enough to the coast

http://mag.ncep.noaa...el=&imageSize=M

the problem is, it's so broad it isn't even progged to hit ENE with more than a scrapper

and, if you check surface temps on the NAM, we're above freezing when that .1" qpf falls aaaaaaaagain

we'd need to the trough to head neutral earlier.. there has been little to no indication of that.

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the trough needs to be sharper (less broad and round at the bottom for the newbies) in order to pull the storm close enough to the coast

http://mag.ncep.noaa...el=&imageSize=M

the problem is, it's so broad it isn't even progged to hit ENE with more than a scrapper

and, if you check surface temps on the NAM, we're above freezing when that .1" qpf falls aaaaaaaagain

Its at night... so it should be snow IMO... but the way this winter has gone... all bets are off

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we know this how this story goes....the NAM will keep improving for the next 24-36 hours with at least one run with 0.30"+ QPF and a cold boundary layer.....Canadian will show a full phase and a 976mb low off of Ocean City, MD........Euro will show 0.07" of QPF with surface temps in the upper 40s.....guess which model will be closest to the final solution?

:lol: so true

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hopefully this stays a FRi night event like the models have been advertising, so I can expect a mangled coating on some trash can lids

The temps again are a problem when the precip arrives even with the event coming at night. The cold air doesn't really get in until the front comes through and the precip probably will be out ahead of it. Another cold aloft and warm at the surface event. That's fine for Leesburg and places with a little elevation but we're dealing with another moisture starved system with temp issues. The only saving grace is the time of day. I'd like to see it hold off for a few more hours. Of course, we're also talking about the nam which hasn't been very good during the last couple of pseudo events.

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The temps again are a problem when the precip arrives even with the event coming at night. The cold air doesn't really get in until the front comes through and the precip probably will be out ahead of it. Another cold aloft and warm at the surface event. That's fine for Leesburg and places with a little elevation but we're dealing with another moisture starved system with temp issues. The only saving grace is the time of day. I'd like to see it hold off for a few more hours. Of course, we're also talking about the nam which hasn't been very good during the last couple of pseudo events.

If I see actual 100% snow fall for 1 minute, it will be an improvement over the last 2 events

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No reason to forecast against persistence. I predict a marginal event with almost no moisture and that what does fall is mostly snizzle. I also predict a deck shot from either Westminster or Frederick and possibly the usual trixie stop sign pic with moderate snow.

I predict the Euro in the next 2 runs will come in with .20 or more QPF and we will all be sucked back in and we will get the same crap storm we had today.

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The Euro hasn't had a good run for us in months.

Not that it really matters at this point, but there've been a couple. Probably the best was the first week of January when it showed MECS day 7 on a 12z run, everyone said they "expected the GFS to jump on board soon," and the Euro lost it on the next run. I'm pretty sure that's the one where DT immediately created a "Euro snow map" showing what the Euro showed verbatim, but maybe I'm thinking about another instance.

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