26. January 2015 · Comments Off on Early Afternoon Update on Storm: Impressive · Categories: snow, weather discussion, weather forecast, winter · Tags: , , , ,

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In looking at weather data so far, I’m impressed with the storm and starting to worry that perhaps this is an over achiever for western New Jersey.

On the radar above that was taken at 2:30 pm on Monday, there is now a solid band of snow over Long Island across NYC into northern NJ. This has formed faster than I anticipated. Furthermore the band appears to be staying in place. I’m starting to wonder if this band will remain and pivot as time goes on and the storm gets closer.

Computer models continue to support the storm as is. Current observations are showing the storm has formed slightly WSW of where the computer forecasts indicated. Furthermore the upper air support may be slight more favorable as well.

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The NWS snowfall prediction from mid day is above. They are forecasting 10-14 for western New Jersey which is slightly higher than my forecast. They released a statement that a new snowfall forecast map will be released at 4pm. It will be interesting to see if there are any changes.

We also received 1.6” of new snow as of lunch time. This was a little more than what I though we would receive so early in the storm cycle.

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So as of right now I continue to support the totals show in the map above. If I continue to see signals I’m seeing now I may be increasing my totals later on. I don’t like to do that but don’t want to leave anyone “buried” if there is a change in the weather.

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Beyond this storm we will remain in an active pattern. Look for another fast moving clipper snow storm Thursday evening and night. This certainly won’t be anything impressive but will add to the cold and snow totals. There are also signs of a larger storm towards Ground Hog day…

03. January 2015 · Comments Off on Snow to Sleet Then Rain · Categories: snow · Tags: , , ,

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A mixture of snow and sleet should overspread the area my midday. Warmer air will be right behind it and we should be all rain by mid afternoon, early evening the latest. Temperatures have already risen this morning from overnight lows in the upper teens to near 30 degrees. Wind is light but out of the warmer east. This will cause any frozen precipitation that falls to only accumulate on colder surfaces. Look for a light slushy accumulation in southern and eastern areas and up to 1” in the north and west.

The NWS has issues a winter weather advisory for today for Warren, Northampton and further north and west. Hunterdon county is NOT included.

Even though temperatures are rising rapidly this morning, the temperature should drop a little once the precipitation starts. This is know as evaporational cooling. It will last for only a little while then the temperature will continue to rise.

Temperatures tonight will actually rise and be in the upper 50’s by Sunday afternoon! But don’t get used to that yet. Much colder air will rush in Sunday night and Monday causing our temperatures to fall well below normal for the work week ahead.

I’ll post updates if warranted.

DD

03. December 2014 · Comments Off on Winter Precipitation Graphic · Categories: precipitation, snow, winter

Here is a great graphic from NWS Boston showing the different types of winter precipitation and how each type forms.

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The only thing I’d like to point out here is it RARELY hails in the winter time. I hear a lot of folks saying “it’s hailing outside” when it’s really sleeting. Hail is found only in thunderstorm type of clouds with strong updrafts. Yes this can happen in the cold season but it’s rare.

02. December 2014 · Comments Off on Here We Snow Again · Categories: snow, weather forecast · Tags: ,

Tuesday December 2, 2014. 5 pm.

As many of you saw already today’s weather is much different that yesterdays! The day started off with some blue skies:

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But then as the day went on it became cloudier and colder. In fact light snow moved into the area just before noon. A very light snow accumulation resulted mainly on colder unpaved surfaces. The roads were fine. The temperature never dropped below freezing.

What’s ahead?

Look for the snow/sleet to changeover to all rain, albeit a cold rain this evening and continue into showers early Wednesday morning. Wednesday will feature improving weather!

-Dave

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