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March 18-20th Fluff Bomb Special


dryslot

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Noyes going from conservative: "I won't be back in the weather center until Monday afternoon, but when time allows, I like to grind out a "rough draft" of snowfall expectations so I know what I'm walking into. With my little guy asleep Sunday night, I had some time to crunch the numbers...I love the numbers Tim Kelley has been airing on NECN this eve (no surprise, there!)...looks like a solid foot for the mountains of VT, NH and ME. Other numbers I crunch, subject to change Mon PM when I'm in front of the bells and whistles...Boston 4-5" before changing to rain (*may* nudge that down slightly Monday, depending upon precise wind direction forecast), Worcester 6", Lawrence 5", Hartford 4", Springfield 4.5", New Haven and New London 2", Providence 3", Cape Cod nothing outer/1.5" west, Concord NH 8.5", Portland 10", Bangor 10", Burlington VT 8". Key players are timing of snow to mix/rain line, and how much downsloping limits precipitation on Western side of Green Mountains."-From FB

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Noyes going from conservative: "I won't be back in the weather center until Monday afternoon, but when time allows, I like to grind out a "rough draft" of snowfall expectations so I know what I'm walking into. With my little guy asleep Sunday night, I had some time to crunch the numbers...I love the numbers Tim Kelley has been airing on NECN this eve (no surprise, there!)...looks like a solid foot for the mountains of VT, NH and ME. Other numbers I crunch, subject to change Mon PM when I'm in front of the bells and whistles...Boston 4-5" before changing to rain (*may* nudge that down slightly Monday, depending upon precise wind direction forecast), Worcester 6", Lawrence 5", Hartford 4", Springfield 4.5", New Haven and New London 2", Providence 3", Cape Cod nothing outer/1.5" west, Concord NH 8.5", Portland 10", Bangor 10", Burlington VT 8". Key players are timing of snow to mix/rain line, and how much downsloping limits precipitation on Western side of Green Mountains."-From FB

I find 4.5" Springfield/ 3" PVD and only 6" ORH a little bit hard to believe.

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I find 4.5" Springfield/ 3" PVD and only 6" ORH a little bit hard to believe.

there are other outlets showing a much more latitudinal graident on this storm than elevation.

 

orh would have better ratio's i'd think but i heard harv say 6-10 orh 10-14 mht (i.e latitude rules) but it seems latitude might not matter to much until you get toward like andover north (per box map)

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The NAM, and to some extent the GFS, have been showing a kind of 2 parter deal with the precip fields. We all get in on the thump... then a break Tuesday morning... followed by the follow up wave of moisture that blossoms into the comma head/cold conveyorbelt. Sort of a weird look. 

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How is Noyes going for 4-5 BOS and 6 ORH? ORH may easily double the BOS number.

Nam 925 is really cold. This thing is still trending and in a good way. I'm starting to think this over performs.

Not that it matters but nam with a several inch thump Thursday morning for Boston.

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The NAM, and to some extent the GFS, have been showing a kind of 2 parter deal with the precip fields. We all get in on the thump... then a break Tuesday morning... followed by the follow up wave of moisture that blossoms into the comma head/cold conveyorbelt. Sort of a weird look. 

 

 

It shows that little nuke at the end of the run again...esp for eastern areas. It will be interesting to see if other 00z guidance picks up on this. Can't believe how cold it looks during that too...like -10C 850 temps with sfc temps in the 20s...little powder bomb?

 

A bit OT from this storm though....but same ULL actually that produces it.

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The NAM, and to some extent the GFS, have been showing a kind of 2 parter deal with the precip fields. We all get in on the thump... then a break Tuesday morning... followed by the follow up wave of moisture that blossoms into the comma head/cold conveyorbelt. Sort of a weird look. 

 

 

Looks like a better part 1 for you guys south and a better part 2 when the secondary gets going up here

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It shows that little nuke at the end of the run again...esp for eastern areas. It will be interesting to see if other 00z guidance picks up on this. Can't believe how cold it looks during that too...like -10C 850 temps with sfc temps in the 20s...little powder bomb?

 

A bit OT from this storm though....but same ULL actually that produces it.

 

LOL I know. The Euro had it yesterday so we'll see. 

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How is Noyes going for 4-5 BOS and 6 ORH? ORH may easily double the BOS number.

Nam 925 is really cold. This thing is still trending and in a good way. I'm starting to think this over performs.

Not that it matters but nam with a several inch thump Thursday morning for Boston.

 

 

The 925mb temps are def a red flag...and not just because the NAM shows it (it would be tossed if it was alone in that)...Euro had a hard time getting the 0C 925mb line north of BOS. Sometimes this can signal the models being a bit too aggressive with the ML warm punch. It def prob means they are a bit too warm at the sfc...so either more snow, or Kevin gets pelted with an extra cold sleet bomb, lol.

 

But the cold will at least help letting all of the initial thump stick....this isn't wasting 0.25" of qpf on 33-34F wet snow...this stuff is going to stick as soon as it starts

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big euro run tonite IMO. last nite tick'd NW ..this pm tick'd SE.....like to see that 925 0c line stay put or tick se again.

 

euro weenie maps show that nice deform band with deepening secondary at hr 57 for extreme NE mass.

 

shows ray to haverhill get'n smoked in that 3hr period .

 

did notice the weenie maps 3hr qpf periods from 12z run were not as intense wrt to waa qpf.

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rgem has sharp cutoff in melt'd snow qpf from Central berks over to S monads and even (20 miles s of MHT) ...from there north 1.75 to 2 inches melt'd qpf (1.5 just s of mht) and much less to the south of that line....but near Warning amounts .60 from 128 over to near .75 orh. well see how well the resolution is on this...but has look of mid levels warming from N orh to KFIT to LWM....bc amounts increase sharply a bit north of that line per RGEM

 

0z gfs shows how close NE mass is to getting back to snow on that deform band ...perhaps they cash in during late pm

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It shows that little nuke at the end of the run again...esp for eastern areas. It will be interesting to see if other 00z guidance picks up on this. Can't believe how cold it looks during that too...like -10C 850 temps with sfc temps in the 20s...little powder bomb?

 

A bit OT from this storm though....but same ULL actually that produces it.

 

00z GFS is weaker with the Thursday storm, and keeps it offshore...

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