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Public Information Statement
National Weather Service Taunton MA
220 PM EDT Tue Mar 13 2018

...PRELIMINARY SUMMARY OF BLIZZARD ON MARCH 13 2018...

A blizzard occurred today at several locations across southeastern 
New England.

The definition of a blizzard is that falling and/or blowing snow 
reduced visibility to below 1/4 mile along with sustained winds or 
winds that frequently gust to 35 mph or more...and that these are 
the predominant conditions for a period of 3 consecutive hours.

When reviewing whether a particular observation location had 
blizzard conditions, we counted visibilities equal to 1/4 mile, 
since that is quite low for an automated visibility sensor to detect.

Blizzard criteria were still occurring at some locations as of this 
writing, so durations will need to be finalized on Wednesday.

At Boston, MA, blizzard criteria were met, starting at 830 AM.

At Martha's Vineyard, MA, blizzard criteria were met, starting at 
800 AM. There was a 3-hour wind-data outage, but mesonet data 
at Vineyard Haven indicated continuous gusts at or above 35 mph 
during that period.

At Marshfield, MA, blizzard criteria were met, starting at 855 AM. 
There was a wind-data outage between 915 AM and 1155 AM, but mesonet 
data from Duxbury were used as a proxy and indicated nearly 
continuous gusts at or above 35 mph during that time period.

At Plymouth, MA blizzard criteria were met, starting at 732 AM and 
continuing through 1025 AM and likely beyond, but there was a 
prolonged data outage after that time. 

At Hyannis, MA blizzard criteria were met, starting at 730 AM.

At Newport, RI, blizzard criteria were met, starting at 850 AM.

$$
Field

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