[Tropical] Hurricane Local Statement

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WTUS81 KBOX 051620
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MAZ022>024-052230-

Hurricane Dorian Local Statement Advisory Number 49
National Weather Service Boston/Norton MA  AL052019
1220 PM EDT Thu Sep 5 2019

This product covers Southern New England

**Tropical Storm Watch Remains In Effect For Cape Cod and the
 Islands**


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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Watch is in effect for Barnstable MA, Dukes
      MA, and Nantucket MA

* STORM INFORMATION:
    - About 780 miles southwest of Nantucket MA
    - 32.5N 79.1W
    - Storm Intensity 110 mph
    - Movement North-northeast or 20 degrees at 8 mph

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

Hurricane Dorian is forecast to pass about 160 miles south of
Nantucket early Saturday as it moves northeastward and well offshore
Saturday afternoon. Strong winds, heavy rainfall and high surf will be
the main impacts, with the strongest wind and heaviest rain occurring
late Friday night into early Saturday. A Tropical Storm Watch remains
in effect for Cape Cod, Marthas Vineyard and Nantucket.

Northeast winds will increase to 30 to 40 mph late Friday night over
Nantucket and the outer Cape with occasional gusts to 60 mph expected.
Winds will diminish Saturday afternoon. Total rainfall of 2 to
4 inches is possible with minor urban poor drainage flooding. A storm
surge of 2 to 2.5 feet is possible during the Saturday morning high
tide which may bring minor coastal flooding to Nantucket Harbor.

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

* WIND:
Prepare for dangerous wind having possible significant impacts across
Cape Cod and the Islands. Potential impacts in this area include:
    - Some damage to roofing and siding materials, along with damage
      to porches, awnings, carports, and sheds. A few buildings
      experiencing window, door, and garage door failures. Mobile
      homes damaged, especially if unanchored. Unsecured lightweight
      objects become dangerous projectiles.
    - Several large trees snapped or uprooted, but with greater
      numbers in places where trees are shallow rooted. Several
      fences and roadway signs blown over.
    - Some roads impassable from large debris, and more within urban
      or heavily wooded places. A few bridges, causeways, and access
      routes impassable.
    - Scattered power and communications outages, but more prevalent
      in areas with above ground lines.

Also, prepare for hazardous wind having possible limited impacts
across southeast Massachusetts.

Elsewhere across Southern New England, little to no impact is
anticipated.

* SURGE:
Minor coastal flooding is possible along Nantucket Harbor during the
high tide Saturday morning.

* FLOODING RAIN:
Prepare for locally hazardous rainfall flooding having possible limited
impacts across Cape Cod and the Islands. Potential impacts include:
    - Localized rainfall flooding may prompt a few evacuations.
    - Rivers and tributaries may quickly rise with swifter currents.
      Small streams, ditches may become swollen and overflow in spots.
    - Flood waters can enter a few structures, especially in usually
      vulnerable spots. A few places where rapid ponding of water
      occurs at underpasses, low-lying spots, and poor drainage
      areas. Several storm drains and retention ponds become
      near-full and begin to overflow. Some brief road and bridge
      closures.

Elsewhere across Southern New England, little to no impact is
anticipated.

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

* EVACUATIONS:
Listen to local official for recommended preparedness actions

* 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.

* 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 6 PM, or sooner if conditions
warrant.

$$
Nash
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