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February 18th ?19th?


Typhoon Tip
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3 minutes ago, George001 said:

I’m not expecting a blizzard, more sustained mod snow for 30 hours or so. However the latest run of the navy was more south though so I have to admit that is a red flag. I’m still waiting to see if it was just an off run or a trend before I get too concerned though, that is a fair point though about the navy not looking great. As a forecaster I want to try to be more accurate and avoid those crazy 3-4 feet snow calls that amount to nothing, so even if the models aren’t showing what I want to see I’m not just going to discount them.

Blending the navy euro and Canadian still looks good for my idea of a 16-20 jackpot with most areas getting 12-15 when taking ratios into account so I’m going to stick with it, but I would like to see the navy come back north next run.

I see

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1 minute ago, wx2fish said:

He used to jump all over people for rushing spring at work. Welcome to backdoor season "this is what you all wanted", not sure what's happened to him recently. 

Yeah with all the Napril talk we kind of forget how much Napril usually blows. 

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21 minutes ago, dendrite said:

Yeah I wasn't kidding when I said I've enjoyed this winter. I got my big dog, torched it away in a week, avoided big cold, and other than yesterday we've pretty much avoided the glop events. Winter is long here and it's nice to have one that feels a little shorter. Hopefully we can start warming it up a bit in March.

Maybe my attitude would be different if i sat under a death band that dropped 30"+ on me, But we've been hosed pretty good this year, Inline to match 2010 actually.

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12 minutes ago, George001 said:

I’m not expecting a blizzard, more sustained mod snow for 30 hours or so. However the latest run of the navy was more south though so I have to admit that is a red flag. I’m still waiting to see if it was just an off run or a trend before I get too concerned though, that is a fair point though about the navy not looking great. As a forecaster I want to try to be more accurate and avoid those crazy 3-4 feet snow calls that amount to nothing, so even if the models aren’t showing what I want to see I’m not just going to discount them. Blending the navy euro and Canadian still looks good for my idea of a 16-20 jackpot with most areas getting 12-15 when taking ratios into account so I’m going to stick with it, but I would like to see the navy come back north next run.

The more important question

How much for Philly?

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3 minutes ago, wx2fish said:

He used to jump all over people for rushing spring at work. Welcome to backdoor season "this is what you all wanted", not sure what's happened to him recently. 

I see right thru him. He hates the kids always inside and him having to watch them . He longs for the days when he can just send them outside all day and he knows how far away that is. So he just comes on here and acts like grumpy 85 year old . 

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1 hour ago, RUNNAWAYICEBERG said:

Not sure what the angst is for southern peeps. This was either stronger but quick flip or weaker but all snow. I mean...I’ll take the all snow even if it’s 3-6 over 24hr duration. 

Society has regressed like in that late 90s early 00s movie where they travel to Costco for a time machine

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Just now, Damage In Tolland said:

I see right thru him. He hates the kids always inside and him having to watch them . He longs for the days when he can just send them outside all day and he knows how far away that is. So he just comes on here and acts like grumpy 85 year old . 

Hell I feel cooped up inside all day every day, then go outside after work and at best it's cold with dim sun every day. Would be much more tolerable with travel and normal activities.

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1 minute ago, Damage In Tolland said:

I see right thru him. He hates the kids always inside and him having to watch them . He longs for the days when he can just send them outside all day and he knows how far away that is. So he just comes on here and acts like grumpy 85 year old . 

Too many people tired of Covid, and f.ucking zoom calls.  The more snow, the more agitated they become. 
Some want to wish it away, but Scott? You know that Scott is on his game with forecasting. 

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14 minutes ago, JC-CT said:

So obviously fronto is well below the dgz. What are the blue/grey shaded areas and what are we looking for with respect to theta-e?

nevermind the first part I see the omega legend on the right

Yeah that's the omega. Don't worry too much about the theta-e...although you can see which isentrope the fronto slope and lift runs along. Looks like about 300-310K there. Air prefers to move toward areas with similar density so when you get that WAA and sloped ascent (warm air overrunning the cold) the lift tends to slope along a specific isentrope (line of constant potential temp).

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17 minutes ago, 40/70 Benchmark said:

I know some where advocating for better ratios than the mid atlantic as early as yesterday, and I was a bit confused as to why.

Thanks for clarifying.

Bufkit , just the start

210218/1300Z  25  06004KT  22.4F  SNOW   11:1| 0.1|| 0.00|| 0.00|| 0.012   12:1|  0.3|| 0.00|| 0.00|| 0.02  100|  0|  0
210218/1400Z  26  07004KT  22.4F  SNOW   10:1| 0.3|| 0.00|| 0.00|| 0.030   11:1|  0.6|| 0.00|| 0.00|| 0.05  100|  0|  0
210218/1500Z  27  07005KT  22.5F  SNOW   15:1| 0.5|| 0.00|| 0.00|| 0.033   12:1|  1.1|| 0.00|| 0.00|| 0.09  100|  0|  0
210218/1600Z  28  06004KT  22.5F  SNOW   16:1| 0.6|| 0.00|| 0.00|| 0.035   13:1|  1.6|| 0.00|| 0.00|| 0.12  100|  0|  0
210218/1700Z  29  06005KT  23.1F  SNOW   12:1| 0.5|| 0.00|| 0.00|| 0.042   13:1|  2.2|| 0.00|| 0.00|| 0.16  

 

 

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1 minute ago, Ginx snewx said:

Bufkit , just the start


210218/1300Z  25  06004KT  22.4F  SNOW   11:1| 0.1|| 0.00|| 0.00|| 0.012   12:1|  0.3|| 0.00|| 0.00|| 0.02  100|  0|  0
210218/1400Z  26  07004KT  22.4F  SNOW   10:1| 0.3|| 0.00|| 0.00|| 0.030   11:1|  0.6|| 0.00|| 0.00|| 0.05  100|  0|  0
210218/1500Z  27  07005KT  22.5F  SNOW   15:1| 0.5|| 0.00|| 0.00|| 0.033   12:1|  1.1|| 0.00|| 0.00|| 0.09  100|  0|  0
210218/1600Z  28  06004KT  22.5F  SNOW   16:1| 0.6|| 0.00|| 0.00|| 0.035   13:1|  1.6|| 0.00|| 0.00|| 0.12  100|  0|  0
210218/1700Z  29  06005KT  23.1F  SNOW   12:1| 0.5|| 0.00|| 0.00|| 0.042   13:1|  2.2|| 0.00|| 0.00|| 0.16  

 

 

Where's that? a little over a tenth of QPF averaging 12:1. Meh. That may be generous too although I'm sure there will be bursts that tickle up closer to the DGZ. Is that Cobb method?

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Just now, dendrite said:

Where's that? a little over a tenth of QPF averaging 12:1. Meh. That may be generous too although I'm sure there will be bursts that tickle up closer to the DGZ. Is that Cobb method?

Yes you posted the later frames when the upper levels warm. Final numbers are 10 to 1 .Examples IJD .59 gives 6.4 HVN .79 gives 8.2. Obviously this changes depending on lift 700 frontogenisis. Banding signal lies across LI sound.  North of that could get crushed in a 3 hr period with high ratio fluff due to lift, column temp and interaction with the DGZ. 

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3 minutes ago, Ginx snewx said:

Yes you posted the later frames when the upper levels warm. Final numbers are 10 to 1 .Examples IJD .59 gives 6.4 HVN .79 gives 8.2. Obviously this changes depending on lift 700 frontogenisis. Banding signal lies across LI sound.  North of that could get crushed in a 3 hr period with high ratio fluff due to lift, column temp and interaction with the DGZ. 

I'm just using the 3k nam for the example. There's a little mid level lift in the DGZ very early on but it doesn't look like a huge deal. The better growth starts to redevelop up my way.

image.png

These things often change as you get closer in though.

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