National Weather Service Raw Text Product

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Tropical Storm Henri Local Statement Advisory Number 19
National Weather Service New York NY  AL082021
1144 AM EDT Fri Aug 20 2021

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

**HENRI IS FORECAST TO IMPACT PORTIONS OF THE AREA SUNDAY INTO SUNDAY 
NIGHT** 

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

* CHANGES TO WATCHES AND WARNINGS:
    - A Storm Surge Watch has been issued for Bronx and Northern 
      Queens
    - A Hurricane Watch has been issued for Northern Middlesex, 
      Northern New Haven, and Northern New London
    - A Tropical Storm Watch has been issued for Northern Fairfield

* CURRENT WATCHES AND WARNINGS:
    - A Storm Surge Watch is in effect for Bronx and Northern Queens
    - A Storm Surge Watch and Tropical Storm Watch are in effect for 
      Northern Nassau, Southern Nassau, Southern Westchester, and
      Southern Fairfield
    - A Hurricane Watch is in effect for Northern Middlesex, Northern 
      New Haven, and Northern New London
    - A Storm Surge Watch and Hurricane Watch are in effect for 
      Northeast Suffolk, Northwest Suffolk, Southeast Suffolk, and Southwest
      Suffolk, Southern Middlesex, Southern New Haven, and Southern New
      London
    - A Tropical Storm Watch is in effect for Northern Fairfield

* STORM INFORMATION:
    - About 720 miles south of New York City NY or about 740 miles 
      south of Montauk Point NY
    - 30.4N 73.7W
    - Storm Intensity 65 mph
    - Movement Northwest or 305 degrees at 7 mph

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

Tropical Storm Henri is currently due east of the South Carolina 
coastline and will likely track north nearing eastern Long Island 
and into southern New England Sunday as a Category 1 Hurricane. 

The main threats from Henri are potentially life-threatening storm 
surge, heavy rain capable of producing flash flooding, tropical 
storm or hurricane force winds along the south shore and east end of 
Long Island and across southeast 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 2 to 4 inches is forecast in the path 
of Henri with localized higher amounts possible Saturday through 
Sunday evening. The highest amounts are forecast to be across 
eastern Long Island and much of southeastern Connecticut. 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. Tropical storm force winds will be most 
likely in those areas, near the south shores and east end of Long Island 
and southeast Connecticut, and in some higher elevations away from the 
coastline. Dangerous rip currents and high surf are expected along the 
ocean beaches of Long Island beginning Friday.

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

* WIND:
Prepare for life-threatening wind having possible extensive impacts 
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, prepare for dangerous wind having possible limited impacts across 
southern New York and northeast New Jersey.

* SURGE:
Prepare for locally hazardous surge having possible limited impacts 
across coastal Long Island, the Western Long Island Sound, and southern
Connecticut. Potential impacts in this area include:
    - Localized inundation with storm surge flooding mainly along 
      immediate shorelines and in low lying spots, or in areas 
      farther inland near where higher surge waters move ashore.
    - Sections of near shore roads and parking lots become overspread 
      with surge water. Driving conditions dangerous in places where 
      surge water covers the road.
    - Moderate beach erosion. Heavy surf also breaching dunes, mainly 
      in usually vulnerable locations. Strong and frequent rip 
      currents.
    - Minor to locally moderate damage to marinas, docks, boardwalks, 
      and piers. A few small craft broken away from moorings.

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

* FLOODING RAIN:
Prepare for dangerous rainfall flooding having possible significant 
impacts across eastern Long Island and southern Connecticut. Potential 
impacts include:
    - Moderate rainfall flooding may prompt several evacuations and 
      rescues.
    - Rivers and streams may quickly become swollen with swifter 
      currents and may overspill their banks in a few places, 
      especially in usually vulnerable spots. Small streams, creeks, 
      canals, and ditches may 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.

Prepare for locally hazardous rainfall flooding having possible 
limited impacts across southern New York and northeast New Jersey.

* TORNADOES:
Little to no impacts are anticipated at this time 
across Southeast New York, Northeast New Jersey, and Southern 
Connecticut.

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.

If evacuating, leave with a destination in mind and allow extra time to get
there. Take your emergency supplies kit. Gas up your vehicle ahead of time.

* 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 can extend well away from the 
center of the storm.

When securing your property, outside preparations should be completed 
as soon as possible before conditions deteriorate. The onset of 
strong winds or flooding can cause certain preparedness activities to 
become unsafe.

Check on those who may not be fully aware of the situation or who are 
unable to make personal preparations.

If you are a visitor, know the name of the county where 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 http://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 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 6 PM EDT, or sooner if conditions 
warrant.

$$