[Tropical] Hurricane Local Statement

[EMWIN Server]

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Tropical Storm Isaias Local Statement Advisory Number 23
National Weather Service Mount Holly NJ  AL092020
514 PM EDT Sun Aug 2 2020

This product covers NEW JERSEY...DELAWARE...SOUTHEASTERN PENNSYLVANIA AND NORTHEAST MARYLAND

**Isaias Moving up the East Coast**

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

* CHANGES TO WATCHES AND WARNINGS:
    - A Tropical Storm Watch has been issued for Atlantic, Atlantic
      Coastal Cape May, Camden, Cape May, Caroline, Cecil, Coastal
      Atlantic, Coastal Ocean, Cumberland, Delaware, Delaware
      Beaches, Eastern Monmouth, Eastern Montgomery, Gloucester,
      Hunterdon, Inland Sussex, Kent, Kent MD, Lower Bucks, Mercer,
      Middlesex, Morris, New Castle, Northwestern Burlington, Ocean,
      Philadelphia, Queen Annes, Salem, Somerset, Southeastern
      Burlington, Talbot, and Western Monmouth

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Watch is in effect for Atlantic, Atlantic
      Coastal Cape May, Camden, Cape May, Caroline, Cecil, Coastal
      Atlantic, Coastal Ocean, Cumberland, Delaware, Delaware
      Beaches, Eastern Monmouth, Eastern Montgomery, Gloucester,
      Hunterdon, Inland Sussex, Kent, Kent MD, Lower Bucks, Mercer,
      Middlesex, Morris, New Castle, Northwestern Burlington, Ocean,
      Philadelphia, Queen Annes, Salem, Somerset, Southeastern
      Burlington, Talbot, and Western Monmouth

* STORM INFORMATION:
    - About 850 miles south-southwest of Atlantic City NJ or about
      820 miles south-southwest of Dover DE
    - 27.8N 79.8W
    - Storm Intensity 70 mph
    - Movement North-northwest or 345 degrees at 9 mph

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

Tropical Storm Isaias is currently just east of the central Florida
coast. This storm is expected to continue northward very near the east
coast. It may move inland south of our region. The main impacts within
our region are expected starting Monday night and continuing through
Wednesday morning.

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

* FLOODING RAIN:
Prepare for life-threatening rainfall flooding having possible
extensive impacts across Northern Delmarva, western New Jersey, and
much of southeastern Pennsylvania. Potential impacts include:
    - Major rainfall flooding may prompt many evacuations and rescues.
    - Rivers and tributaries may rapidly overflow their banks in
      multiple places. Small streams, creeks, canals, arroyos, and
      ditches may become dangerous rivers. In mountain areas,
      destructive runoff may run quickly down valleys while
      increasing susceptibility to rockslides and mudslides. Flood
      control systems and barriers may become stressed.
    - 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.

Prepare for dangerous rainfall flooding having possible significant
impacts across The coastal areas of New Jersey and Delaware.

* WIND:
Prepare for dangerous wind having possible significant impacts across
coastal Delaware and coastal New Jersey. 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 northeastern Maryland, northern and central Delaware, the rest
of New Jersey, and southeastern Pennsylvania.

* SURGE:
Prepare for locally hazardous surge having possible limited impacts
across northeastern Chesapeake Bay, Delaware Bay, tidal Delaware River,
and the New Jersey and Delaware coast. 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 rip currents.
    - Minor to locally moderate damage to marinas, docks, boardwalks,
      and piers. A few small craft broken away from moorings.

* TORNADOES:
Prepare for a tornado event having possible limited impacts across
NEW JERSEY...DELAWARE...SOUTHEASTERN PENNSYLVANIA AND NORTHEAST
MARYLAND. 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.

PRECAUTIONARY/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.

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 live in a place particularly vulnerable to flooding, such as
near the ocean or a large inland lake, in a low-lying or poor
drainage area, in a valley, or near an already swollen river, plan to
move to safe shelter on higher ground.

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

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 Mount Holly NJ around 11 PM EDT, or sooner if conditions
warrant.

$$
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