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Coastal Storm Briefing

A winter storm watch is in effect for the Tri-State region late Wednesday night into Thursday, with heavy snow, strong winds, and near blizzard conditions expected. Snowfall rates of 1-2 inches per hour are possible, with visibilities down to a quarter mile at times and north winds gusting up to 35 mph along coastal areas. Snowfall amounts are uncertain but minimum forecasts call for at least 6 inches and maximum forecasts suggest up to 12 or more inches could fall in some areas. The greatest impacts are expected during the Thursday morning and afternoon commutes.

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Peter J. Mahon
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210 views8 pages

Coastal Storm Briefing

A winter storm watch is in effect for the Tri-State region late Wednesday night into Thursday, with heavy snow, strong winds, and near blizzard conditions expected. Snowfall rates of 1-2 inches per hour are possible, with visibilities down to a quarter mile at times and north winds gusting up to 35 mph along coastal areas. Snowfall amounts are uncertain but minimum forecasts call for at least 6 inches and maximum forecasts suggest up to 12 or more inches could fall in some areas. The greatest impacts are expected during the Thursday morning and afternoon commutes.

Uploaded by

Peter J. Mahon
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Issued: Tuesday February 7, 2017 at 4:30 pm EST

Heavy Snow likely for the Tri-State Region late Wednesday Night
into Thursday

Building a Weather Ready Nation @ www.weather.gov/nyc


US National Weather Service New York NY @NWSNewYorkNY
Main Points
Hazard Impacts Timing
Dangerous travel conditions.
Heavy Snow
(Winter Storm Watch Snowfall rates of 1-2/hr possible Early Thursday morning
into Thursday afternoon
in Effect) Visibilities mile or less at times.
North winds 15-20 mph with gusts
25 to 35 mphhighest along the
coast.
Thursday morning into
Wind Blowing and Drifting Snow Thursday evening

Near Blizzard Conditions possible


along coast

Upper 20s/Lower 30s Thu


Thursday morning into
Temperatures Morningdropping into the Mid-
afternoon
Upper 20s Thu Afternoon

N/NW wind gusts 35 to 45 knots on


Marine all nearshore waters.
Thursday into Thursday
(Gale Watch in Effect) Seas 3 to 5 ft on LI Sound & 6-10 ft Night
on Ocean
Most Likely Snow Forecast

Building a Weather Ready Nation @ www.weather.gov/nyc


US National Weather Service New York NY @NWSNewYorkNY
Minimum and Maximum Snowfall Potential

Minimum Maximum
Expect at least this much: Potential for this much:

Building a Weather Ready Nation @ www.weather.gov/nyc


US National Weather Service New York NY @NWSNewYorkNY
Weather Prediction Center Forecast Map

8 am Thursday, Feb 9th

Low pressure will push off the DelMarVa coast early Thursday morning, then
rapidly intensify as it tracks south and east of Long Island on Thursday. This
will likely bring a heavy snow to the region Late Wednesday Night into Thursday.
Building a Weather Ready Nation @ www.weather.gov/nyc
US National Weather Service New York NY @NWSNewYorkNY
Forecast Uncertainties
Snowfall Amount Uncertainty

Location and Duration of Heavy Snow Banding


Potential Maximum Hourly Rates of 1-2 Inches

Snow Ratios
Heavy, Wet snow early Thu Morning transitioning to Dry,
Powdery snow Thursday afternoon

Building a Weather Ready Nation @ www.weather.gov/nyc


US National Weather Service New York NY @NWSNewYorkNY
Event Summary

Heavy Snow likely late Wednesday Night into Thursday

Confidence is HIGH for a significant snowfall

Period of Greatest Impact:


Thursday (Morning and Afternoon commutes)

No Significant Coastal Flood Impacts Expected

Building a Weather Ready Nation @ www.weather.gov/nyc


US National Weather Service New York NY @NWSNewYorkNY
Next Presentation Update

Additional Electronic Briefings will be Provided

Maintain Your Situational Awareness

Check www.weather.gov/nyc

Building a Weather Ready Nation @ www.weather.gov/nyc


US National Weather Service New York NY @NWSNewYorkNY

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