[Tropical] Hurricane Local Statement

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Tropical Storm Henri Local Statement Advisory Number 18...CORRECTED
National Weather Service Boston/Norton MA  AL082021
531 AM EDT Fri Aug 20 2021

This product covers Southern New England

**HENRI IS FORECAST TO IMPACT SOUTHERN NEW ENGLAND SUNDAY AND
 MONDAY**

NEW INFORMATION
---------------

* CHANGES TO WATCHES AND WARNINGS:
    - A Hurricane Watch has been issued for Western Kent RI
    - A Storm Surge Watch and Hurricane Watch have been issued for
      Barnstable MA, Block Island RI, Bristol RI, Dukes MA, Eastern
      Kent RI, Nantucket MA, Newport RI, Southern Bristol MA, Southern
      Plymouth MA, and Washington RI

* CURRENT WATCHES AND WARNINGS:
    - A Hurricane Watch is in effect for Western Kent RI
    - A Storm Surge Watch and Hurricane Watch are in effect for
      Barnstable MA, Block Island RI, Bristol RI, Dukes MA, Eastern
      Kent RI, Nantucket MA, Newport RI, Southern Bristol MA,
      Southern Plymouth MA, and Washington RI

* STORM INFORMATION:
    - About 780 miles south-southwest of Nantucket MA
    - 30.2N 73.1W
    - Storm Intensity 65 mph
    - Movement West-northwest or 300 degrees at 9 mph

SITUATION OVERVIEW
------------------

Tropical Storm Henri is forecast to strengthen to a hurricane as it
heads northward today, and is expected to make landfall near Newport RI
Sunday evening, possibly as a Category 1 hurricane. Henri will weaken
rapidly after landfall but will exit the region slowly through Monday.
The main hazards include damaging winds, flooding rain, and storm surge
flooding.

POTENTIAL IMPACTS
-----------------

* WIND:
Prepare for life-threatening wind having possible extensive impacts
across south coastal Rhode Island and Massachusetts, including Cape Cod
and the Islands. Potential impacts in this area include:
    - Considerable roof damage to sturdy buildings, with some having
      window, door, and garage door failures leading to structural
      damage. Mobile homes severely damaged, with some destroyed.
      Damage accentuated by airborne projectiles. Locations may be
      uninhabitable for weeks.
    - Many large trees snapped or uprooted along with fences and
      roadway signs blown over.
    - Some roads impassable from large debris, and more within urban
      or heavily wooded places. Several bridges, causeways, and
      access routes impassable.
    - Large areas with power and communications outages.

Also, prepare for dangerous wind having possible limited to
significant impacts across the rest of southern New England.

* FLOODING RAIN:
Prepare for dangerous rainfall flooding having possible significant
impacts across southern New England. Potential impacts include:
    - Moderate rainfall flooding may prompt several evacuations and
      rescues.
    - Rivers and tributaries may quickly become swollen with swifter
      currents and overspill their banks in a few places, especially
      in usually vulnerable spots. Small streams, creeks, and ditches
      overflow.
    - Flood waters can enter some structures or weaken foundations.
      Several places may experience expanded areas of rapid
      inundation at underpasses, low-lying spots, and poor drainage
      areas. Some streets and parking lots take on moving water as
      storm drains and retention ponds overflow. Driving conditions
      become hazardous. Some road and bridge closures.

* SURGE:
Prepare for life-threatening surge having possible significant impacts
across south coastal Rhode Island and Massachusetts, including Cape Cod
and the Islands. Potential impacts in this area include:
    - Areas of inundation with storm surge flooding accentuated by
      waves. Damage to several buildings, mainly near the coast.
    - Sections of near-shore escape routes and secondary roads become
      weakened or washed out, especially in usually vulnerable low
      spots.
    - Major beach erosion with heavy surf breaching dunes. Strong and
      numerous rip currents.
    - Moderate damage to marinas, docks, boardwalks, and piers.
      Several small craft broken away from moorings, especially in
      unprotected anchorages.

Also, prepare for locally hazardous surge having possible limited
impacts along the eastern Massachusetts coastline, north of Sagamore
Beach to the Merrimack River.

PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------

* EVACUATIONS:
Listen to local official for recommended preparedness actions,
including possible evacuation. If ordered to evacuate, do so
immediately.

* OTHER PREPAREDNESS INFORMATION:
Now is the time to check your emergency plan and emergency supplies
kit and take necessary actions to protect your family and secure your
home or business.

When making safety and preparedness decisions, do not focus on the
exact forecast track since hazards such as flooding rain, damaging
wind gusts, storm surge, and tornadoes extend well away from the
center of the storm.

If you are a visitor, know the name of the county in which you are
located and where it is relative to current watches and warnings. If
staying at a hotel, ask the management staff about their onsite
disaster plan. Listen for evacuation orders, especially pertaining to
area visitors.

Closely monitor weather.gov, NOAA Weather Radio and local news
outlets for official storm information. Listen for possible changes
to the forecast.

* ADDITIONAL SOURCES OF INFORMATION:
- For information on appropriate preparations see ready.gov
- For information on creating an emergency plan see getagameplan.org
- For additional disaster preparedness information see redcross.org

NEXT UPDATE
-----------

The next local statement will be issued by the National Weather
Service in Boston/Norton MA around NOON EDT, or sooner if conditions
warrant.

$$

JWD
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