[Weather] NWS Boston EM Briefing: Potential Weather Hazards Saturday Night and Sunday

[BOX Operations - NOAA Service Account]

Good Morning,

We want to provide a heads up on the potential for hazardous weather
Saturday night and Sunday. Low pressure is expected to track over southern
New England or just offshore. Depending on the exact track, which will not
be known for another day or two, the following impacts are possible:

*Interior Light Icing:*
*Locations*: Western and central Massachusetts, possibly portions of
northern Connecticut.
*Timing:* Wintry mix late Saturday night into early Sunday morning,
changing to rain by afternoon.
*Impact*: Slippery travel
*Uncertainty:* Type of wintry precipitation and timing of the exact
changeover. There could be little or no snow, and simply light freezing
rain changing to rain during the morning, or a wintry mix of snow and
freezing rain changing to rain. In either case, amounts should be light, on
the order of up to one inch of snow and a light coating (up to 1/10") of
ice.

*Strong Winds:*
*Locations*: Cape Cod and the Islands
*Timing:* Late Friday afternoon and especially Friday night.
*Sustained Wind:* W 25 to 35 mph.
*Wind Gusts:*  Up to 45 mph.
*Impact*: Minor damage such as downed tree limbs. Perhaps Isolated power
outages.
*Uncertainty:* Winds may increase earlier in the afternoon, possibly as
soon as 2 PM.

*Marine Impacts:*
*Locations*: Massachusetts and Rhode Island coastal waters
*Timing:* Friday afternoon and Friday night, before winds diminish Saturday
morning
*Wind Gusts:* W 35 to 40 knots.
*Seas:* 4 to 7 feet on the inner bays and sounds; 10 to 15 ft offshore.
*Impact:* Hazardous conditions for mariners.
*Uncertainty:* Winds may increase to Gale force earlier in the afternoon,
possibly as soon as
2 PM.

*Minor Coastal Flooding:*
*Locations*: Eastern Massachusetts coast and possibly the South Coast
*Timing:* Monday morning high tide (5:41 AM at Providence, 8:45 AM at
Boston, and 9:46 AM on Nantucket)
*Storm Surge:* 1.0 to 1.5 feet
*Inundation:* Less than 1 foot above ground level
*Impact*: Some vulnerable shoreline roads may become temporarily impassable
around high tide.
*Uncertainty:* High. Timing of highest surge may not coincide with high
tide, which would lead to little or no impact. Wind direction, which may
favor either coast, will not be confidently known for a day or two. Minor
coastal flooding would be the worst case scenario.

Additional email briefings will be sent as needed.

If you have any questions or would like more information, don't hesitate to
contact us via this email address, on NWSChat <https://nwschat.weather.gov/>,
or at the following:

National Weather Service Boston/Norton, MA
46 Commerce Way
Norton, MA 02766
508.622.3280
Website <http://www.weather.gov/boston> | Facebook
<http://www.facebook.com/NWSBoston> | Twitter
<http://www.twitter.com/NWSBoston>

Thanks,
Joe DelliCarpini and Andrew Loconto
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