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SNE End of May, into Summer Thread


free_man

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I have to replace my rain guage because it got smashed 2 weeks ago but we've gotten a ton of rain.

I've been in Greenfield 5 years now and I'm starting to realize that this part of Franklin Co. is the summer equivalent of Pete's winter bonanzas. We will get downpors in this 10 mile radius (Greenfield, Montague, Leyden etc.) when no one else is getting rain. Obviously something to do with the topography and the way the Valley narrows up here surrounded by hills.

I have noticed that too. Also there's something about the stretch from East Deerfield across the river into Turners Falls... Storms, whatever their overall intensity level, have this tendency to really cycle up and max out.. Linear storms often develop embedded spinups and some of the biggest local hail reports come out of there. Would not surprise me at all if they got a tornado some day.

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majority of srefs have a pretty nice looking MCS diving across NE sunday night. kind of approaching the end of the run so to be taken with a grain of salt but something to watch.

they also do what the NAM is doing and drive the BDCF through new england sunday night, leaving monday as a pretty cool day.

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majority of srefs have a pretty nice looking MCS diving across NE sunday night. kind of approaching the end of the run so to be taken with a grain of salt but something to watch.

they also do what the NAM is doing and drive the BDCF through new england sunday night, leaving monday as a pretty cool day.

Further than the ORH hills?

60.7/60, dreariness continues.

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Nick,,,I didn't necessarily mean 48 hrs of rain, but it didn't look all that nice Sunday and Monday. But, it is possible one of those days may be ok for some. I'd rather the front get pushed into NJ and a nice push of dry air come down from Maine. I'll be up north anyways, but still....a BKN deck of mid level crud sucks.

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Nick,,,I didn't necessarily mean 48 hrs of rain, but it didn't look all that nice Sunday and Monday. But, it is possible one of those days may be ok for some. I'd rather the front get pushed into NJ and a nice push of dry air come down from Maine. I'll be up north anyways, but still....a BKN deck of mid level crud sucks.

oh i know what you meant...and since it's the Holiday weekend I'd imagine many of you have outdoor plans. I like storms...so I wouldn't mind a stalled frontal boundary with thunderstorms.

Should be some nice lift from the jet on Sunday night.

http://mag.ncep.noaa.gov/GemPakTier/MagGemPakImages/gfs/20120525/12/gfs_namer_060_250_wnd_ht.gif

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I was afraid of this the other day and now you can see it clearly on sat... we're in a tuck pattern here.

that's when we tuck in murk, and then topography combined with nuances in the wind directions work against normal diurnal processes that would otherwise mix this garbage out. Basically, having HP due E of NE is as bad as having to due N. Notice it clear in N NE, where there is more return flow oriented gradient?

The NAM is still flagging a NW trajectory kicking in tomorrow and that would help.

Currently a strong boundary is plowing east out of the GL; it's going to be interesting/fun/satisfying to watch that plow into this stuff and eradicate it.

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oh i know what you meant...and since it's the Holiday weekend I'd imagine many of you have outdoor plans. I like storms...so I wouldn't mind a stalled frontal boundary with thunderstorms.

Should be some nice lift from the jet on Sunday night.

http://mag.ncep.noaa..._250_wnd_ht.gif

Yeah if the front is nearby...lets get some action..agreed.

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Basically, not en easy forecast. If the front stalls near SNE...north of the WF may not be pretty with high TD air over east winds. GFS looked like Sunday might be ok, but the euro looked pretty lousy. You're also at the mercy for MCS activity helping to dictate front position.

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Yeah if the front is nearby...lets get some action..agreed.

Sunday and Monday looks to be the best chance for severe weather that slow moving shortwave on Tuesday/Wednesday looks crappy.

I'd like to see a stronger low-level jet being modeled...it's pretty weak, but maybe that will strengthen as we get closer.

On another note, does anyone have any theories on why the 95 derecho moves so fast?

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12z NAM throws LIs of +9 across the area post - dry eventless fropa on Saturday ...heading into Sunday. That's a dry air intrusion from the WNW tomorrow..

Tomorrow would be a warm day by virtue of delayed CAA... but then it's 24C in the 2 metere with DPs of 45 on Sunday, with mid-level overrunning getting going. If it rains...at all... that will pin the boundary SW of SNE and ruin the weather until whole scale changes sweet through next week. stable, cool, boring puke. It's just one of the possibilities with that.

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Sunday and Monday looks to be the best chance for severe weather that slow moving shortwave on Tuesday/Wednesday looks crappy.

I'd like to see a stronger low-level jet being modeled...it's pretty weak, but maybe that will strengthen as we get closer.

On another note, does anyone have any theories on why the 95 derecho moves so fast?

Cold pool acceleration I would think. Weren't 500mb winds like 50kts as well? That's usually more than plenty.

I thought Tuesday/Wednesday could be interesting if convection doesn't modify lapse rates. Usually we do ok when s/w's dip down from the Great Lakes.

But, you know how it goes around here...have to wait until we get closer.

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Cold pool acceleration I would think. Weren't 500mb winds like 50kts as well? That's usually more than plenty.

I thought Tuesday/Wednesday could be interesting if convection doesn't modify lapse rates. Usually we do ok when s/w's dip down from the Great Lakes.

But, you know how it goes around here...have to wait until we get closer.

they were like 35-40 kt. Usually you need a decent balance of environmental shear and instability. 1995 seemed to have a boatload of instability but modest/moderate shear. How did it move at 80mph across Lake Ontario and not become outflow dominant?

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Look at this pants tent.

post-33-0-14921600-1337961809_thumb.gif

Yeah, I was just looking at the boundary being just N of the area... Oooph!! Big turn around sunday --> Monday comparativelly...

That's really dangerous man. That would mean theta-e pooling in SNE up under that boundary and should storms develop just S of it they would avail of rather large SRH.

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