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FOLKS Feb 19-20 Debacle


ravensrule
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9 minutes ago, Jandurin said:

none of them look very good to me right now

One method of improvement would be to shorten the time frame length of prediction The  wind events  we’ve had twice in last two weeks were perfectly  handled because nothing was said until 3 days in advance.  
The most recent models failure began about 10 days ago with an impulse traversing the nation and supposedly setting off low pressure down south that comes up here. Too speculative that’s DC would get a bomb based on  7/8 days of required perfection as that impulse traverses the nation.  Models can’t perform in mid Atlantic for wintry precip that far out and in those circumstances .  So cut it out. For some reason NHC does not have such problems.  Excuses are that it’s just all too complex.  So just eliminate what can’t be done accurately and don’t latch onto impulse Before  they even come ashore out west . Wait until 3/4 days out and something is actually existing on this half side of the country 

 

 

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1 minute ago, WEATHER53 said:

One method of improvement would be to shorten the time frame length of prediction The  wind events  we’ve had twice in last two weeks were perfectly  handled because nothing was said until 3 days in advance.  
The most recent models failure began about 10 days ago with an impulse traversing the nation and supposedly setting off low pressure down south that comes up here. Too speculative that’s DC would get a bomb based on  7/8 days of required perfection as that impulse traverses the nation.  Models can’t perform in mid Atlantic for wintry precip that far out and in those circumstances .  So cut it out. For some reason NHC does not have such problems.  Excuses are that it’s just all too complex.  So just eliminate what can’t be done accurately and don’t latch onto impulse Before  they even come ashore out west . Wait until 3/4 days out and something is actually existing on this half side of the country 

 

 

I think the issue with that is that Hurricanes are one solid unit.  They don't have to rely on timing, and surrounding shortwaves to form a storm.  I would think that makes things a ton easier for models.  And remember, they are using the same models as we use for winter time also.  

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God we're grasping at straws but f it - we have nothing to lose.

NAM shift is being caused by the spacing from the energy on the Pac Coat being pulled back. You can see the heights building between the TPV and SW out in Wyoming giving the TPV room to stay more West and deepen a bit further. 

CMC had a noticeable pullback of the energy out west as well - not really noticing much of a shift on the GFS tho.

Regardless - too little too late for most of us, but hope it's on to something for once. 

namconus_z500_vort_us_fh42_trend.gif

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2 minutes ago, stormtracker said:

I think the issue with that is that Hurricanes are one solid unit.  They don't have to rely on timing, and surrounding shortwaves to form a storm.  I would think that makes things a ton easier for models.  And remember, they are using the same models as we use for winter time also.  

So hurricanes dont have elements too difficult to handle ,  They can’t even steer themselves yet their landings and intensities are nearly perfectly predicted .  If winter storms are just too much to handle then maybe accept that or implement a more effective time frame like 3-4 days out only. 

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20 minutes ago, stormtracker said:

I think the issue with that is that Hurricanes are one solid unit.  They don't have to rely on timing, and surrounding shortwaves to form a storm.  I would think that makes things a ton easier for models.  And remember, they are using the same models as we use for winter time also.  

They also have access to HCCA and FSSE, which often are the top performers and even sometimes outperform the official forecast track. There was the whole reveal this past fall of the 2020 contract between NOAA and RenaissanceRe that keeps the HCCA forecasts, with proprietary techniques from the insurance risk firm, from the public for 5 years.

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