Monday March 13 2017

Kingston Snow Updates
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Major storm begins tonight.

School Forecast for:
Tuesday March 14th
Last Updated: 12:00PM Monday March 13th

Two Hour Delay No School Early Dismissal
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12PM Monday Update

Tuesday forecast #3.

Overnight all guidance models came into agreement in having a significant snowstorm impact us tomorrow. The trend during this time has simply been increasing snowfall amounts with every update with, and over 12 inches of snow has consistently been depicted across the Mid-Hudson Valley with the potential for some areas to see over 24 inches. The Kingston area forecast has been bumped up to a point-forecast of 19" at this time.

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Please note that THIS IS NOT JUST ANOTHER SNOWSTORM.
Not since Presidents Day 2003 has the Kingston area seen a storm of the projected magnitude, and if the high end forecasts verify, this could be our strongest storm in much longer. Snow should begin around 2AM Tuesday and continue into Tuesday night. The most intense portion of the storm will be between roughly 7AM and 1PM when intense banding features may create snowfall rates of 2 to 3 inches per hour. This will result in near blizzard conditions, and make travel largely IMPOSSIBLE. Do NOT attempt to travel if it is not absolutely necessary. For context, similar storms in recent years namely the Valentine's Day 2014 storm have resulted in the New York State Thurway being close and a State of Emergency being issued. It would not be at all a surprise to see the same tomorrow. An update on the amounts will be posted this evening, but the practical impact remains the same.


6PM Sunday Update

Tuesday forecast #2.

This morning it was mentioned that of the two primary guidance models that we traditionally turn to at this point in the forecast, one continued to depict a significant snow event while the other was more moderate. This continues to be the case this evening, however, more confidence is now being placed in the stronger scenario. This is because we are now just over 24 hours away from the beginning of the storm and the model depicting the stronger scenario tends to perform better with short-range forecasting. Additionally it has some support from secondary models. In this scenario, the storm's track is nearly identical to our Valentines Day 2014 storm and St. Patrick's Day 2007 storm. Both these events dumped 16 inches of snow on Kingston, and we could very well be looking at a repeat. The "snow-gauge" has been adjusted to reflect this, but maintains a low-end extreme range that still captures the lower scenario. The new forecast is now in line with the National Weather Service's "Winter Storm Warning".

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The forecast could still shift some in either direction, however, the practical impact remains that a significant winter storm will greatly impact the region on Tuesday; impacts will likely linger into Wednesday. Updates will be posted tomorrow morning and afternoon.

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11:30AM Sunday Update

First Tuesday forecast.
This morning there is still uncertainty in the eventual evolution of Tuesday's storm. Of the two primary guidance models that we traditionally turn to at this point in the forecast, one continues to depict a significant snow event. The other takes the storm a little further out to sea, resulting in a more moderate event. However, secondary models continue to favor a stronger impact storm, and thus the attached Kingstonsnows forecast for the Kingston area leans more toward that end of the spectrum, but is conservative relative to the strongest scenarios. In either case, the practical impact remains that snow will fall for the vast majority of the day on Tuesday resulting in significant travel impacts. Updates will be posted today and tomorrow as the forecast evolves.

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Caption: Current forecast snow ranges for the Kingston area.
Click image for larger version.

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6AM Saturday Update

A total of about 2.8 inches of snow fell in Kingston between 4:30am and 11:30am. This brings the season total to 41.9 inches. Our attention now turns to a potentially significant snowstorm for Tuesday.

For more than 48hours there has been a growing probability of a significant winter storm impacting our region on Tuesday. The "players" that will converge to create this storm are now in place across North America. These include (1.) Cold air streaming in from Canada in the wake of yesterday's storm, (2.) A weather system that will impact the Pacific Northwest before tracking through the Great Plains, and (3.) Copious moisture over the Gulf of Mexico. It is now almost certain that these will result in a significant nor'easter (4.) off the Southeast coast by Monday. There is still some uncertainty in the specific track of the storm by the time it reaches the Northeast on Tuesday. The exact track will determine exactly where the heaviest snow falls. However, for over 48 hours the trend has been for the Mid-Hudson Valley to receive over 6 inches on Tuesday — with up to 12 inches possible. Details will continue to become more refined this weekend.

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Caption: Last night's satellite imagery depicts the "players" that will result in next week's storm. Click image for larger version.The remainder of the week looks to be calm with temperatures generally running in the 30's, which is below normal.
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Click image for larger version.

Extended-Outlooks
Extended outlooks offer a general sense of upcoming conditions, but are not specific forecasts.

School Impact Probability
March 13th - March 17th
Last Updated: Saturday March 11th

Delay Cancellation Early Dismissal
Monday (13th) Very Low
Very Low
Very Low
Tuesday (14th)
Very Low High Very Low
Wednesday (15th)
Very Low Very Low Very Low
Thursday (16th)
Very Low
Very Low Very Low
Friday (17th)
Very Low Very Low Very Low

Weather Probabilities
Last Updated: Tuesday March 7th
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[ https://drive.google.com/open?id=0Bz88OAymn0k1cG9TNmo0V3N6ams Click outlook image for larger and clearer version]

Next Update
On Sunday

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