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Wave 2, 1/7-8/17 Discussion/OBS


Rjay

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6 minutes ago, sferic said:

Does too, too west introduce mixing issues anywhere ?


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not a very scientific reply..but i can't remember the last time warm air ruined a storm for us...after being so used to it for so many years.  sure i have seen many busts but they have been misses or non-developers.  as long as winds remain north of east i think we are fine.

 

sidenote: almost every major winter storm here does mix, hard to remember many great ones without sleet, but it doesn't really hurt the outcome in the big ones.

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SREF going the wrong way for LGA   6", 4", 4".

WPC has NYC at 40% for at least 4".

Cobb Method NAM moved up to 7" but needs a whopping 20:1 ratio to get there.

Cobb Method GFS  has just 2"-3", but had nothing earlier.   Its' ratio is a high 18:1.

 

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Just now, CIK62 said:

SREF going the wrong way for LGA   6", 4", 4".

WPC has NYC at 40% for at least 4".

Cobb Method NAM moved up to 7" but needs a whopping 20:1 ratio to get there.

Cobb Method GFS  has just 2"-3", but had nothing earlier.   Its' ratio is a high 18:1.

 

I wouldn't be too concerned about the SREF. The GFS as mentioned will probably be the last to really catch onto the trend. It's almost time to follow models like the HRRR.

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3 minutes ago, jm1220 said:

I wouldn't be too concerned about the SREF. The GFS as mentioned will probably be the last to really catch onto the trend. It's almost time to follow models like the HRRR.

I disagree. In this time frame, the SREF has most value, particularly seeing how its more amped mesoscale members behave. If it's shifting east, it's important to note. I certainly trust a NAM/SREF combo right now over the RGEM.

Lastly, the HRRR should be used to model very specific areas of banding 1-3 hours out, certainly not at this range.

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12 minutes ago, CIK62 said:

SREF going the wrong way for LGA   6", 4", 4".

WPC has NYC at 40% for at least 4".

Cobb Method NAM moved up to 7" but needs a whopping 20:1 ratio to get there.

Cobb Method GFS  has just 2"-3", but had nothing earlier.   Its' ratio is a high 18:1.

 

Wait for the 21z SREFs. I expect them to follow the western trends seen this afternoon. 

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13 minutes ago, mimillman said:

I disagree. In this time frame, the SREF has most value, particularly seeing how its more amped mesoscale members behave. If it's shifting east, it's important to note. I certainly trust a NAM/SREF combo right now over the RGEM.

Lastly, the HRRR should be used to model very specific areas of banding 1-3 hours out, certainly not at this range.

The RGEM is killer at this range! It showing what it is showing is a great sign for the area. 

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Just now, jm1220 said:

Wow. With ratios that could be 10". Snow growth looks conducive in this for 15-1 ratios. 

 

3 minutes ago, jm1220 said:

Wow. With ratios that could be 10". Snow growth looks conducive in this for 15-1 ratios. 

My friend, as I indicated that's an educated guess, I didnt take a look. Apoologies for any misunderstanding

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