National Weather Service Raw Text Product

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CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-220545-

Hurricane Henri Local Statement Advisory Number 24
National Weather Service New York NY  AL082021
533 PM EDT Sat Aug 21 2021

This product covers Southeast New York, Northeast New Jersey, and Southern Connecticut

**HURRICANE CONDITIONS EXPECTED ACROSS PORTIONS OF EASTERN LONG 
ISLAND AND SOUTHERN CONNECTICUT SUNDAY** 

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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Hurricane Warning and Storm Surge Watch are in effect for 
      Southwest Suffolk
    - A Tropical Storm Warning is in effect for Eastern Bergen, 
      Eastern Essex, Eastern Union, Hudson, Kings (Brooklyn), New 
      York (Manhattan), Northern Fairfield, Northern Westchester, 
      Richmond (Staten Island), and Southern Queens
    - A Tropical Storm Warning and Storm Surge Watch are in effect 
      for Southern Nassau
    - A Hurricane Warning is in effect for Northern Middlesex, 
      Northern New Haven, and Northern New London
    - A Storm Surge Warning and Hurricane Warning are in effect for 
      Northeast Suffolk, Northwest Suffolk, Southeast Suffolk, 
      Southern Middlesex, Southern New Haven, and Southern New London
    - A Storm Surge Warning and Tropical Storm Warning are in effect 
      for Bronx, Northern Nassau, Northern Queens, Southern 
      Fairfield, and Southern Westchester

* STORM INFORMATION:
    - About 340 miles south-southeast of New York City NY or about 
      330 miles south of Montauk Point NY
    - 36.3N 71.4W
    - Storm Intensity 75 mph
    - Movement North-northeast or 20 degrees at 18 mph

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

Henri remains a Category 1 hurricane and is currently 330 miles 
south of Montauk Point. Henri will likely make landfall near 
hurricane strength across the east end of Long Island early Sunday 
afternoon, and then track into southern New England late Sunday into 
Monday as it weakens. 

The main threats from Henri continue to be potentially life-
threatening storm surge, heavy rain capable of producing flash 
flooding, tropical storm or hurricane force winds along the south 
shore of Long Island and across southern Connecticut. There will 
also be associated marine and coastal hazards, including very rough 
seas and dangerous rip currents.

Severe beach erosion is possible for coastal areas of Long Island 
Sound and portions of Suffolk County, including the Twin Forks 
region.

A widespread rainfall of 3 to 6 inches is forecast in the path of 
Henri with localized higher amounts possible late tonight through 
Monday. The highest amounts are forecast to be across Long Island 
and much of southern Connecticut and may occur along and west of the 
center of Henri. This will present a likelihood for areas of flash 
flooding.

Dangerous marine conditions are likely on the ocean waters south of 
Long Island, as well as on Long Island Sound, and the south shore 
and eastern bays of Long Island. Dangerous rip currents and high surf
are expected along the ocean beaches of Long Island. 

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

* WIND:
Protect against life-threatening wind having possible extensive 
impacts across across eastern Long Island and southern Connecticut. 
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, protect against dangerous winds having possible significant impacts
across the New York City metro area, portions of the Lower Hudson
Valley, and portions of northeastern New Jersey.

* SURGE:
Protect against life-threatening surge having possible significant 
impacts across all coastal areas of Long Island Sound, and much of 
the Great South Bay and southeast coast of Long Island. 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. Flood control systems and barriers may become stressed.
    - Major beach erosion with heavy surf breaching dunes. Very 
      dangerous surf and rip currents.
    - Moderate damage to marinas, docks, boardwalks, and piers. 
      Several small craft broken away from moorings, especially in 
      unprotected anchorages.

Also, protect against locally hazardous surge having possible limited 
impacts across Jamaica Bay, and New York Harbor.

* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible 
extensive impacts across Southeast New York, Northeast New Jersey, 
and Southern Connecticut. Potential impacts include:
    - Major rainfall flooding may prompt many evacuations and rescues.
    - Rivers and streams may rapidly overflow their banks in multiple 
      places. Small streams, creeks, canals, and ditches may become 
      dangerous rivers. Flood control systems and barriers may become 
      stressed.
    - In hilly terrain, destructive runoff may run quickly down 
      valleys, and increase susceptibility to rockslides and 
      mudslides.
    - Flood waters can enter many structures within multiple 
      communities, some structures becoming uninhabitable or washed 
      away. Many places where flood waters may cover escape routes. 
      Streets and parking lots become rivers of moving water with 
      underpasses submerged. Driving conditions become dangerous. 
      Many road and bridge closures with some weakened or washed out.

* TORNADOES:
Protect against a tornado event having possible limited impacts 
across eastern Long Island and southeast Connecticut. Potential 
impacts include:
    - The occurrence of isolated tornadoes can hinder the execution 
      of emergency plans during tropical events.
    - A few places may experience tornado damage, along with power 
      and communications disruptions.
    - Locations could realize roofs peeled off buildings, chimneys 
      toppled, mobile homes pushed off foundations or overturned, 
      large tree tops and branches snapped off, shallow rooted trees 
      knocked over, moving vehicles blown off roads, and small boats 
      pulled from moorings.

Elsewhere across Southeast New York, Northeast New Jersey, and 
Southern Connecticut, little to no impact is anticipated.

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

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

For those not under evacuation orders, assess the risk from wind, 
falling trees, and flooding at your location. If you decide to move, 
relocate to a safer location nearby. If you do not relocate, help 
keep roadways open for those under evacuation orders.


* OTHER PREPAREDNESS INFORMATION:
Now is the time to complete all preparations to protect life and 
property in accordance with your emergency plan. Make sure you are in 
a safe location before the onset of strong winds or possible flooding.

If you are relocating to safe shelter, leave as early as possible. 
Allow extra time to reach your destination. Many roads and bridges 
may be closed once strong winds arrive. Check the latest weather 
forecast before departing and drive with caution.

Failure to adequately shelter may result in serious injury or loss of 
life. Always heed the advice of local officials and comply with any 
orders that are issued. Remember that during the storm 9 1 1 
Emergency Services may not be able to immediately respond if 
conditions are unsafe. This should be a big factor in your decision 
making.

Storm surge is the leading killer associated with tropical storms and 
hurricanes! Make sure you are in a safe area away from the surge 
zone. Even if you are not in a surge prone area, you could find 
yourself cut off by flood waters during and after the storm. Heed 
evacuation orders issued by local authorities.

Closely monitor http://weather.gov, NOAA Weather radio or local news 
outlets for official storm information. Be ready to adapt to possible 
changes to the forecast. Ensure you have multiple ways to receive 
weather warnings.

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

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

The next local statement will be issued by the National Weather 
Service in New York NY around 12 AM EDT, or sooner if conditions 
warrant.

$$