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June 2014


NEG NAO

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You'd think that people would want that trough near the east coast. It's keeping most of the rain to our west and has brought pleasant conditions to this area. If the heat comes east, so will the convection.

 

People like convection - it is responsible for some of the most exciting phenomena in the atmosphere.

 

Not all of us can get off on nimbostratus and hours of -RA

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People like convection - it is responsible for some of the most exciting phenomena in the atmosphere.

 

Not all of us can get off on nimbostratus and hours of -RA

Do people like days and days of heavy rain and numerous washouts while they are trying to vacation and BBQ? Because that is what's going to happen. Just look at how above normal the mid-west and Ohio Valley are as compared to the northeast which is below normal.

 

30dPNormUS.png

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The pattern for the first half of July looks above normal temp wise overall, with periodic FROPAS in the NWLY flow aloft. This would potentially set-up a conducive pattern for frequent convection and heat/humidity. Remember, averages will be in the mid 80s by the beginning of July, so even slightly above normal in July is quite hot.

 

The mean mid level ridge axis should be positioned in the Mid-west/MS valley with transient extensions into the East over the next 15 days. There will be some weakness for troughs to swing through New England and shave back the heat from time to time. But like I said, overall, temperatures look to average warmer than normal for the July 1st-15th period.

 

High latitude blocking should be weak/minimal through the upcoming 2 weeks which will allow higher heights to build W-E across the CONUS for early July.

 

Ring of fire type convection is possible from the Lakes into the Northeast.

 

2d8bib.png

 

 

 

15830nd.png

 

 

 

One can see the higher than normal heights in the East for early July, but due to the placement of the ridge in the Mid-west, there will be room for FROPAS on a NWLY flow occasionally.

 

This has the potential to be a much more interesting pattern than June, in terms of warmth and convection. I don't think we're looking at any prolonged heat waves, but 3 consecutive  days of 90F is certainly possible.

 

2nc31w3.png

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looks frigid

 

f156.gif

 

when did i ever say it has been cold?? It has been very nice, and even slightly above normal. I was talking strictly about the heat aspect. We have already seen multiple times this year where impressive heat has been modeled in the long range and it gets muted as we get closer. The same thing seems to be happening now.

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when did i ever say it has been cold?? It has been very nice, and even slightly above normal. I was talking strictly about the heat aspect. We have already seen multiple times this year where impressive heat has been modeled in the long range and it gets muted as we get closer. The same thing seems to be happening now.

If and when the ridge axis slips east and we end up in a ring of fire where it pours every afternoon this place is going to be unberable.

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If and when the ridge axis slips east and we end up in a ring of fire where it pours every afternoon this place is going to be unberable.

 

this weather has been great honestly. We have had a few hot days, but mainly nice comfortable days.

 

I would not be a fan of extreme heat that had a chance to ruin all outdoor activities every afternoon. This weather is great for people on vacation and enjoying outdoor activities

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this weather has been great honestly. We have had a few hot days, but mainly nice comfortable days.

 

I would not be a fan of extreme heat that had a chance to ruin all outdoor activities every afternoon. This weather is great for people on vacation and enjoying outdoor activities

People that think the pattern would be dry if the ridge slipped east are misinformed. Not in this setup.

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There is no guarantee that the blocking will go away to the point of allowing the heat to make it into our area for an extended period in July - have to just wait and see 

 

http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.sprd2.gif

The pattern for the first half of July looks above normal temp wise overall, with periodic FROPAS in the NWLY flow aloft. This would potentially set-up a conducive pattern for frequent convection and heat/humidity. Remember, averages will be in the mid 80s by the beginning of July, so even slightly above normal in July is quite hot.

 

The mean mid level ridge axis should be positioned in the Mid-west/MS valley with transient extensions into the East over the next 15 days. There will be some weakness for troughs to swing through New England and shave back the heat from time to time. But like I said, overall, temperatures look to average warmer than normal for the July 1st-15th period.

 

High latitude blocking should be weak/minimal through the upcoming 2 weeks which will allow higher heights to build W-E across the CONUS for early July.

 

Ring of fire type convection is possible from the Lakes into the Northeast.

 

2d8bib.png

 

 

 

15830nd.png

 

 

 

One can see the higher than normal heights in the East for early July, but due to the placement of the ridge in the Mid-west, there will be room for FROPAS on a NWLY flow occasionally.

 

This has the potential to be a much more interesting pattern than June, in terms of warmth and convection. I don't think we're looking at any prolonged heat waves, but 3 consecutive  days of 90F is certainly possible.

 

2nc31w3.png

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Models show 850mb temps 18-21C and 582dm heights early next week, which would typically support middle to upper 90s for highs. But don't mix out dew points around 75. So they show high temps closer to 90. That will be underdone, if we see more mixing. The Euro ensembles also build the ridge for the second week of July.

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There is no guarantee that the blocking will go away to the point of allowing the heat to make it into our area for an extended period in July - have to just wait and see 

 

http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.sprd2.gif

 

 

The NAO should be near neutral in early July. The ECWMF ensembles have it slightly positive. The NAO modality itself is fairly insignificant anyway at this time of year in terms of temperatures in our area. We've seen major heat waves with both a +NAO and -NAO during the July-August period. Wavelengths are much different now, so the "same" forcing in one particular season will have different results in another season.

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that has been pretty relentless so far this spring and early summer. It has really muted what could have been some really warm periods for the northeast 

 

The theme of this pattern so far has been above normal temperatures with muted extreme heat. Notice how the recent years

extreme 100 degree heat during July at Newark was proceeded by mid to upper 90's in June which been lacking so far.

The key to watch next week is if the above normal temps are accompanied by more convection and weak troughing near and

just off the coast in the means limiting the heat potential at Newark to low to mid 90's. Real heat at Newark in July has

been defined by temperatures soaring to over 100 degrees. The June signal is that we wont make it there again this 

year. But we'll see how it goes.

 

Newark MAX T........June....July

 

2014...........................92......?

2013...........................96....101

2012...........................99....104

2011..........................102...108

2010..........................98......103

2009..........................89......91

2008..........................99......98

2007..........................96......97

2006..........................95......98

2005..........................97......100

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Guest Pamela

The theme of this pattern so far has been above normal temperatures with muted extreme heat.

 

Temperatures have been seasonable so far.  LaGuardia & Newark are close to +0.0 DFN for June.

 

LGA is +0.1 for June and Newark is +0.6.

 

When one speaks of above normal temperatures (or below normal)...the departure usually has to be greater than 1.0 degrees in order to be statistically significant, IMO.

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Temperatures have been seasonable so far.  LaGuardia & Newark are close to +0.0 DFN for June.

 

LGA is +0.1 for June and Newark is +0.6.

 

When one speaks of above normal temperatures (or below normal)...the departure usually has to be greater than 1.0 degrees in order to be statistically significant, IMO.

 

It may end up almost exactly normal temp and precip wise for many reporting stations barring a deluge tomorrow

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