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New England Storm Dicussion - January 11-12


Baroclinic Zone

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I have a feeling the radar is going to look almost like an MCS over LI at some point around 06-09z Wednesday morning and its going to get absorbed into the rapidly developing CCB over SNE...hopefully it works out ideally....it could be pretty awesome to watch.

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I have a feeling the radar is going to look almost like an MCS over LI at some point around 06-09z Wednesday morning and its going to get absorbed into the rapidly developing CCB over SNE...hopefully it works out ideally....it could be pretty awesome to watch.

Yeah it has that look on the models. It should really go to town down there prior to 12z.

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Looks like the EURO gives me about 1.1" of QPF.

NAM 1.76"

GEM, RGEM and SREFs ~1.5"

GFS and UK are being flushed like a used jimmy.

Final call IMBY: 12-20"+

1.1-1.5" of QPF with ratios likely a hair better than 10:1 due to superior snow growth; banding potential above avg considering optimal positioning of mid level centers, cf placement and timing of most rapid H5 intensification.

Largest event since Feb 2006 is very likely here and I'm pretty confident.

Greater than 20" would not shock me, but only duration precludes me from calling for that.

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Yeah it has that look on the models. It should really go to town down there prior to 12z.

The amount of lift is going to be pretty amazing. There's definitely slantwise convection too...so I'd expect the radar to be lit up like a Christmas tree down there.

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I ask this every time because I deem you the expert of it, but what are you thinking in terms of ratios? It would depend on banding, i'd assume.

I'm off to bed so no time for BUFKIT. I have to be up at 5:15am so I'm already going to be dragging. Just know that we should get into a period of deformation banding with deep mid-level moisture and strong omega. The NAM has very strong omega at CON from 12-18z Wed from 500-700mb. The prime snow growth zone (-12C to -18C) is running around 550-700mb there during that time. So we should have some great snow growth in those bands. I'd assume 20:1 in the bands and 10-12:1 outside of them. Account for some settlement with time and winds and I'd say we average 15-18:1. The more snow you get the more difficult it is to sustain high ratios since the weight of the snow compacts on itself. If you want to be a true snow measuring weenie, yet stay within the rules, measure and clear the snow every 6 hours after it begins.:snowman:
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I'm off to bed so no time for BUFKIT. I have to be up at 5:15am so I'm already going to be dragging. Just know that we should get into a period of deformation banding with deep mid-level moisture and strong omega. The NAM has very strong omega at CON from 12-18z Wed from 500-700mb. The prime snow growth zone (-12C to -18C) is running around 550-700mb there during that time. So we should have some great snow growth in those bands. I'd assume 20:1 in the bands and 10-12:1 outside of them. Account for some settlement with time and winds and I'd say we average 15-18:1. The more snow you get the more difficult it is to sustain high ratios since the weight of the snow compacts on itself. If you want to be a true snow measuring weenie, yet stay within the rules, measure and clear the snow every 6 hours after it begins.:snowman:

Thanks for taking the time Brian. I really like everyone from KMHT south (and probably KCON). Up this way (west and north), I'm less hopeful, but I'm pretty convinced this should be a warning event even here...

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Boy, the EURO actually does tuck this pretty near MTP before shooting ene into ACK sound......unrivaled QPF max over LI.......shades of the Boxing day event.

How does that differ from that event.....Scott....

The qpf blob there almost looks convective as the storm goes totally nuts...the mid/upper level features never wrap well back W of us like that storm did. 500mb is about perfect for us...and not wrapped up obscene well SW of us...thats not to say we can't discount flirting with dryslots...but I thing most will find the issue is much diminished this storm and if occurs, less short lived.

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The qpf blob there almost looks convective as the storm goes totally nuts...the mid/upper level features never wrap well back W of us like that storm did. 500mb is about perfect for us...and not wrapped up obscene well SW of us...thats not to say we can't discount flirting with dryslots...but I thing most will find the issue is much diminished this storm and if occurs, less short lived.

I hate that SV doesn't have H7 for the EURO.

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