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April 2016 discussion/obs


WeatherFeen2000

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uncle W, on 28 Apr 2016 - 10:10 AM, said:

it's possible the wet regime we have been in since 1971 is over...the big drought from the 1950's to the 1960's ended in 1971...Since then NYC has averaged near 50" a year...Before 1971 it was close to 42" a year...The wettest ten year period was from 2002-2011...The driest 10 year period was 1956-1965...

1956-1965........36.87"

2002-2011........56.27"

Interesting that average for 1956-1965...During my 35 years of precip records I've never had a single year with a total that low.

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it's possible the wet regime we have been in since 1971 is over...the big drought from the 1950's to the 1960's ended in 1971...Since then NYC has averaged near 50" a year...Before 1971 it was close to 42" a year...The wettest ten year period was from 2002-2011...The driest 10 year period was 1956-1965...

1956-1965........36.87"

2002-2011........56.27"

 

Long range precipitation forecasting is probably the toughest aspect long range weather forecasting.

 

Outside the 2014 epic Islip deluge and some of the late summer flash

flooding last year, things have been drier following the  2011 record rains.

 

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With so many unknowns, example would be this past winter with a rather warm start, to record cold, it was nearly impossible to forecast the pattern change. We knew it was coming but not a lot of confidence in how long or exactly when it would happen...

Who's to say,with yet another surprise of a dry spring against what we kinda thought, that the rainy spell/period will happen just closer to summer??

Just my thoughts

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It took near to record blocking from late March through April  just to have the coolest month

in NYC relative to the means since last June. The below normal temps the last few days

behind the backdoor will keep NYC with the first monthly departure below +1 since

June. Current NYC departure is close to normal at +0.6.

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