[Weather] [2019.10.26.PM] Locally Heavy Rain and Gusty Winds Sunday; Minor Coastal Flooding Sunday thru Midweek

[BOX Operations - NOAA Service Account]

Good afternoon everyone,

Low pressure is expected to move northeast from the northern
mid-Atlantic/lower Hudson River Valley on Sunday. This will bring about a
period of steady, at times heavy rain areawide Sunday afternoon into
evening, and a period of gusty winds for southeast MA, Block Island and the
outer waters. Minor coastal flooding is also expected for coastal RI mainly
Sunday afternoon into the evening.

Into Monday and Tuesday, a period of prolonged onshore winds combined with
high astronomical tides may bring a threat of minor coastal flooding for
eastern MA.

*Changes with this update:*

   - *Wind Advisory Issued*: For Cape Cod and the Islands in MA and for
   Block Island in RI. In effect from 2 PM to 10 PM Sunday.
   - *Coastal Flood Advisory Issued:* For Eastern Kent, Bristol, Washington
   and Newport Counties in RI. In effect from 4 PM to 10 PM Sunday.
   - *Gale Warnings/Small Craft Advisories Issued*: Gale Warnings for all
   coastal and offshore waters, except for Small Craft Advisories Boston
   Harbor. These begin Sunday afternoon.

*Details:*

     *Rainfall:*

   - *Timing:* Light rain begins in western MA/northern CT overnight
      tonight. Period of heaviest rains is midday to late-evening Sunday
      (before midnight).
      - *Amounts:* Between a half to 1.5 inches, highest southern counties.
      - *Impacts:* Minor urban/poor drainage flooding possible from clogged
      storm drains.
      - *Uncertainty:* Rumbles of thunder may lead to locally higher
      rainfall amounts, especially south of I-90. Isolated/limited coverage of
      poor drainage flooding.


     *Winds:*

   - *Timing:* Gusts increase early Sunday afternoon for the Cape and
      Islands and Block Island; period of strongest gusts between 4-9 PM.
      - *Peak Gusts:* Up to 50 mph.
      - *Impacts:* Tree limbs could be blown down and result in a few power
      outages.
      - *Uncertainty*: Strongest winds will accompany rain, which could
      produce pockets of stronger winds to transfer to the surface. This
      potential may be greater if thunder materializes.


     *Coastal Flooding:*

   -
      - *Timing:*  4 PM to 10 PM Sunday.
      - *Impacts:* Vulnerable shoreline locations in Newport, Portsmouth
      and Middletown may experience minor coastal flooding. This includes
      flooding of beach parking lots and parts of Hazard Road in Newport.
      - *Uncertainty:* Minor splashover is possible early Sunday morning
      with high tide, though impacts will be little if any.

                  ***Note*: A prolonged period of onshore flow Monday into
Tuesday in conjunction
                    with high astronomical tides may cause minor coastal
flooding into eastern
                    Massachusetts, including Boston Harbor. Coastal Flood
Advisories may be
                    needed.

Please find graphics attached with the forecast rainfall, maximum wind
gusts in miles per hour, and existing Wind and Marine/Coastal Flood
Headlines in effect as of this afternoon's forecast.

Meteorologist: Andrew Loconto

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>
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