Alaska | NY NJ PA Weather Forecasts

Pacific pattern begins to take hold by this weekend

March 24th, 2009 by Steven DiMartino

7:29 AM
The exit of an area of low pressure on Friday morning will finally break the grip of Arctic air over the forecast area that has influenced the region for the first half of this week. Warmer modified Pacific air will flood into the forecast area on Friday as high pressure positions itself to the [...]

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From One Cold Pattern To Another

March 14th, 2009 by Steven DiMartino

6:46 AM
The first few days of transition from the negative NAO pattern to the negative EPO pattern will likely play on your senses in thinking that Spring is finally here for good. Not so fast! While high pressure will reposition itself off the coast on Tuesday and Wednesday, leading to mild conditions, the influence of [...]

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No Snow Storm, But Still Stormy

February 25th, 2009 by Steven DiMartino

6:00 AM
Model guidance for this period is starting to come into line with my thinking of a basic non-event for the potential storm on Sunday night. Let say right off the bat, that I think the 00Z GFS over phased the disturbances on Sunday morning, which lead to the big rain storm on the model [...]

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Quiet Week Leading To A Big Arctic Blast

February 21st, 2009 by Steven DiMartino

9:29 AM
Call it the last shot of winter. The last cannon blast before the big good bye, but “old man winter” is not going to leave without one more parting shot. However, it is becoming clear that the Pacific is about to take over for the pattern throughout much of the CONUS.
Strong high pressure [...]

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Is Winter Over? Not By A Long Shot!

February 4th, 2009 by Steven DiMartino

7:18 AM
I’ve gotten a lot of emails the past 24 hours if this is it? Is this the big storm and then winter is over? Well, let’s look at all the data. I know many people like to focus on the Pacific and only the Pacific, but I like to take a more round about [...]

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Snowy Tuesday Or Just Snow Showers?

January 31st, 2009 by Steven DiMartino

10:12 AM
The medium range forecast obviously is focused on Tuesday as to whether the forecast area gets a heavy snowfall or nothing at all. It’s amazing just how much the model guidance has changed in the past few days where the forecast from ALL guidance went from a driving rainstorm for the forecast area and [...]

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Active Pattern Leads To Model Uncertainty And Increasing Chances Of Snow

January 21st, 2009 by Steven DiMartino

7:08 AM
To say that the forecast for this weekend into next week is challenging is like say doing a triple axil in ice skating is kind of hard. The problem with model guidance is two fold. First, the model guidance is having difficulty in forecasting the position and strong of the upper level ridge over [...]

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Pattern Changes Begin For Middle And End Of Week

January 19th, 2009 by Steven DiMartino

7:23 AM
The current pattern we are in is about to break down, but a new cold pattern will quickly take it’s place.
What’s really happening here is the negative EPO is intensifying and a split pattern is developing for much of the CONUS. What does this mean for the forecast area though?
Well, initially, a brief moderation [...]

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Pattern Change This Week

January 18th, 2009 by Steven DiMartino

10:05 AM
I want to discuss a few ideas for this upcoming week, as I will naturally be focusing on the short range the rest of the day.
The pattern is changing, that’s for certain. However, I think my idea of a moderation for the end of January into early February is going to be wrong. Oh, [...]

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The Cold And Snow Will Not Go Away Through Next Week

January 9th, 2009 by Steven DiMartino

7:30 AM
The Arctic Express is on the way, and this has nothing to do with Santa Claus, however for some it might seem like Christmas morning all over again.
The negative EPO is going to be doing a heck of a job driving arctic cold air into the eastern two-third of the nation through next week. [...]

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