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March 7th 2018 Coastal Storm thread (not obs)


Rjay

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12 minutes ago, jm1220 said:

For the dry slot you want to track the 700mb low. If it goes west of you, you will dryslot probably since dry air is rotating around south of that low. 

The 0z NAM has the 700mb low fly up the coast, stall when it reaches South Jersey, and then moves/redevelops east out towards the eastern end of Long Island. Considering how tucked the actual Low Pressure low was, thats actually not too bad.

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1 minute ago, Ace said:

The 0z NAM has the 700mb low fly up the coast, stall when it reaches South Jersey, and then moves/redevelops east out towards the eastern end of Long Island. Considering how tucked the actual Low Pressure low was, thats actually not too bad.

Once the 500 low closes off, the surface low should head more easterly as that low gets captured and pushed east. That could be another factor that saves it from mixing much. That can also push the deform band east. 

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1 minute ago, Ace said:

The GFS and Nam has sped things up a bit for their 0z runs and now have the bulk of the precipitation falling on Wednesday afternoon.

This will likely come down so hard it won’t matter.  March sun angle generally only is a factor with light rates.  It didn’t make a difference at all on 3/13/93 and it was 30-32 that day 

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Just now, jm1220 said:

Once the 500 low closes off, the surface low should head more easterly as that low gets captured and pushed east. That could be another factor that saves it from mixing much. That can also push the deform band east. 

The GFS looked east of the 18Z run to me.  

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2 minutes ago, SnowGoose69 said:

This will likely come down so hard it won’t matter.  March sun angle generally only is a factor with light rates.  It didn’t make a difference at all on 3/13/93 and it was 30-32 that day 

Yes I agree. The rates being depicted are quite impressive and Wednesday afternoon rush hour looks to be greatly affected.

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