Storm Coordination Message #3 – Tuesday PM 2/12/18-Wednesday AM 2/13/18 Winter Storm Potential

Hello to all…

..Moderate Snowstorm and/or Wintry Mix expected in interior Southern New England Tuesday Afternoon through Wednesday Morning. The evening commute will be significantly impacted by high snowfall rates before a changeover to a wintry mix inland and a wintry mix to rain in coastal areas..
..A Winter Storm Warning is now in effect from 1 PM Tuesday Afternoon through 7 AM Wednesday Morning for Franklin, Northern Worcester, Middlesex and Essex Counties of Massachusetts for 4-7 inches of snow/sleet and one-tenth to two-tenths of an inch from a wintry mix of heavy snow, sleet and freezing rain..
..A Winter Weather Advisory is now in effect from 1 PM Tuesday Afternoon through 1 AM Wednesday Morning for Norfolk, Suffolk, and Northwest Providence Counties of Rhode Island for 3-5″ of snow and a trace to one tenth of an inch of ice from a wintry mix of snow, sleet and freezing rain..
..A Winter Weather Advisory is now in effect from 1 PM Tuesday Afternoon through 11 PM Tuesday Evening for Rhode Island and Southeast Massachusetts including Cape Cod for 1-4″ of snow and a light glaze of ice. Southeast coastal areas may see wind gusts around 40 MPH as the storm intensifies and tracks over the region..
..SKYWARN Self-Activation with Amateur Radio Call-up nets will monitor the winter storm for snowfall reports and precipitation type changeover reports Tuesday Afternoon into Wednesday Morning..

A moderate snowstorm and wintry mix is expected across Southern New England Tuesday Afternoon into Wednesday Morning with significant snowfall rates of 1-2″ per hour affecting the region during the late afternoon and evening commute that will bear close watching. The headlines depict the current thinking with the Winter Storm Watch converted to a Winter Storm Warning in Northwest, North-Central and Northeast Massachusetts and Winter Weather Advisories posted elsewhere. Key factors for this storm system remain when does the changeover from heavy snow to mixed precipitation occur across the region. Just 1-2 hours difference in the changeover in precipitation type could make the difference between higher snow accumulations versus more sleet and freezing rain. The latest high resolution model data has been incorporated to convert the Winter Storm Watch to Warnings and advisories where needed.

SKYWARN Self-Activation will monitor the winter storm Tuesday Afternoon into Wednesday Morning. This will be the last coordination message on this winter storm potential. Below is the NWS Boston/Norton Winter Storm Warning/Advisory Statement, Hazardous Weather Outlook, Enhanced Hazardous Weather Outlook, Snow and Ice Maps and Facebook Infographics..

NWS Boston/Norton Winter Storm Warning/Winter Weather Advisory Statement:
https://kamala.cod.edu/ma/latest.wwus41.KBOX.html

NWS Boston/Norton Hazardous Weather Outlook:
https://kamala.cod.edu/ma/latest.flus41.KBOX.html

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/box/ehwo

NWS Boston/Norton Snow, and Ice Maps:
https://www.weather.gov/box/winter

NWS Boston/Norton Facebook Infographics:
https://www.facebook.com/NWSBoston/photos/pcb.2084250721669288/2084250281669332/?type=3&theater

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Work Phone #: 508-346-2929 (8 AM-5 PM)
Email Address: rmacedo@rcn.com
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