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July 2013 Observations and Discussions


bluewave

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It looks like the 0z Euro had the best handle on the situation today. It was correct with the

heavy thunderstorms that moved through over the last few hours and doesn't have very

much rainfall for the rest of today.

Not really.

0z euro had .19" through 8am. Then .32" from 8am to 2pm and another .10" after.

That doesn't look even remotely close right now.

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Not really.

0z euro had .19" through 8am. Then .32" from 8am to 2pm and another .10" after.

That doesn't look even remotely close right now.

0z euro also has a complete washout for Saturday now. With about 1" of rain from 2am to 8pm.

Honestly, the euro has overdone the rain for NYC for the last 10 days.

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Not really.

0z euro had .19" through 8am. Then .32" from 8am to 2pm and another .10" after.

That doesn't look even remotely close right now.

 

It got the line of storms correct that just moved through and didn't have that much more today.

Notice how the heaviest rain is over after the line passes and you can make out the NE/SW orientation of the

line. Most of the rain is too our south now where the Euro has the max down toward the MA today. The Euro

was just a little slow with the line that moved through, so there will be less post 12z.

 

 

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It got the line of storms correct that just moved through and didn't have that much more today.

Notice how the heaviest rain is over by 12z and you can make out the NE/SW orientation of the

line. Most of the rain is too our south now where the Euro has the max down toward the MA today.

 

attachicon.gifNorth32America_msl_12.gif

 

attachicon.gifNorth32America_msl_24.gif

 

 

Not sure. The soundings off the 0z euro had .32" after 8am.

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Not sure. The soundings off the 0z euro had .32" after 8am.

 

Since we are dealing with convection, the line may have come in faster so there is less post 12z.

But it looks like the general signal was that the heaviest rain would be front loaded early today.

Obviously its convection, so the amounts are just a rough approximation with much heavier

amounts falling across CT.

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Looks like the Tri-State area could see another heat wave Monday through Thursday next week as the Bermuda high strengthens and 850 temps approach 20C.  Low to mid 90s for highs along with dew points in the upper 60s to near 70 should make it feel uncomfortable and could warrant heat advisories.

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Ever since the big model rain miss with the deep low that cut south of us back in June, model rainfall

forecasts have been really overdone beyond the immediate short term.

Their is another tropical "disturbance" over the Bahamas that is causing problems. The 00z GGEM sucks this up the coast and eventually into the area for the weekend. The 06z GFS keeps this feature offshore.

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Their is another tropical "disturbance" over the Bahamas that is causing problems. The 00z GGEM sucks this up the coast and eventually into the area for the weekend. The 06z GFS keeps this feature offshore.

 

We'll have to see what the 12z models come up with today, but the WAR may be strong enough to suppress

the higher rainfall totals to our south the next few days.

 

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We'll have to see what the 12z models come up with today, but the WAR may be strong enough to suppress

the higher rainfall totals to our south the next few days.

 

attachicon.gifMSLP_North32America_72.gif

The 12z NAM is less than an inch areawide for the next four days but it was still more than what the 06z run showed.

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Their is another tropical "disturbance" over the Bahamas that is causing problems. The 00z GGEM sucks this up the coast and eventually into the area for the weekend. The 06z GFS keeps this feature offshore.

 

Chantal's mid-level vort is moving NW over the SE Bahamas now. The ULL over Florida Strait, is enhancing convection alone and east of surface wave axis, between Cuba and Jamaica.

 

http://www.ssd.noaa.gov/PS/TROP/floaters/03L/flash-wv-long.html

 

12z GFS still has stronger WAR keep, pushing all this mess to our SW over the weekend. Seems to be the overall model trend.

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Looks like the Tri-State area could see another heat wave Monday through Thursday next week as the Bermuda high strengthens and 850 temps approach 20C.  Low to mid 90s for highs along with dew points in the upper 60s to near 70 should make it feel uncomfortable and could warrant heat advisories.

 

Argggghhhh! What I wouldn't do for a good 100 degrees with no humidity and no dew point.

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The heat coming next week will be the icing on the cake for the 4 hottest Julys and summers in a row for NYC.

I don't think anyone would have predicted this kind of warmth spanning 2010-2013 after the year without

a summer in 2009. The heat may be enough for the temperature  at Central Park to have a greater

monthly departure than we saw last July. This is really unprecedented stuff that we are looking at.

 

 

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The heat coming next week will be the icing on the cake for the 4 hottest Julys and summers in a row for NYC.

I don't think anyone would have predicted this kind of warmth spanning 2010-2013 after the year without

a summer in 2009. The heat may be enough for the temperature at Central Park to have a greater

monthly departure than we saw last July. This is really unprecedented stuff that we are looking at.

Screen shot 2013-07-11 at 3.29.43 PM 15-36-30-199.png

While July 2013 is likely to be significantly above average, it will likely be driven by the minimums more than the maximums. Yes, we will have high maximums, but keep in mind that mid-80's are average for this time of year. 2010, 2011, and 2012 were driven by maximums more than minimums.
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The heat coming next week will be the icing on the cake for the 4 hottest Julys and summers in a row for NYC.

I don't think anyone would have predicted this kind of warmth spanning 2010-2013 after the year without

a summer in 2009. The heat may be enough for the temperature  at Central Park to have a greater

monthly departure than we saw last July. This is really unprecedented stuff that we are looking at.

 

 

attachicon.gifScreen shot 2013-07-11 at 3.29.43 PM 15-36-30-199.png

I think it's becoming increasing obvious that 2 or 3 degrees above the 1981-2010 average is the new normal for today's climate.

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While July 2013 is likely to be significantly above average, it will likely be driven by the minimums more than the maximums. Yes, we will have high maximums, but keep in mind that mid-80's are average for this time of year. 2010, 2011, and 2012 were driven by maximums more than minimums.

 

That's what I posted the other day. But there will be several opportunities for readings above 90 next week.

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I think it's becoming increasing obvious that 2 or 3 degrees above the 1981-2010 average is the new normal for today's climate.

 

This will make it 7 out of the last 9 summers above normal since 2005. Probably the best time

in history to be working in the air conditioning business.

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