[Tropical] Hurricane Local Statement

[EMWIN Server]

WTUS81 KPHI 030923
HLSPHI
DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-055-060>062-070-071-101>106-031730-

Tropical Storm Isaias Local Statement Advisory Number 25
National Weather Service Mount Holly NJ  AL092020
523 AM EDT Mon Aug 3 2020

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

**Isaias Expected to Impact the Area Late Tonight into Wednesday
Morning**


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

* CHANGES TO WATCHES AND WARNINGS:
    - The Tropical Storm Watch has been upgraded to a Tropical Storm
      Warning for Atlantic, Atlantic Coastal Cape May, Cape May,
      Caroline, Coastal Atlantic, Coastal Ocean, Cumberland, Delaware
      Beaches, Eastern Monmouth, Inland Sussex, Kent, Middlesex,
      Ocean, Queen Annes, Southeastern Burlington, Talbot, and
      Western Monmouth

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

* STORM INFORMATION:
    - About 730 miles south-southwest of Atlantic City NJ or about
      690 miles south-southwest of Dover DE
    - 29.7N 79.9W
    - Storm Intensity 70 mph
    - Movement North or 355 degrees at 9 mph

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

Tropical Storm Isaias is currently located just offshore of the
northeast Florida coast. The storm is expected to continue northward
along the East Coast. It will likely move inland over the Carolinas
this evening and approach our region by late tonight and especially
Tuesday. Impacts should diminish by Wednesday morning.

The main threats with this system are heavy rainfall leading to flash
flooding and some river flooding, strong winds especially near the
coast, minor to potentially moderate coastal flooding, and dangerous
marine conditions.

We are most concerned about flash flooding caused by 4 to 6 inches of
rain, as well as strong winds along the New Jersey and Delaware coasts
with wind gusts of 60 to 70 mph possible. Secondary threats include
minor to locally moderate coastal flooding, especially in Chesapeake
Bay, as well as the potential for isolated tornadoes. Dangerous rip
currents and 8 to 12 foot seas are also expected over the waters.

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

* FLOODING RAIN:
Protect against 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 water rescues.
    - Rivers and tributaries may rapidly overflow their banks in
      multiple places. Small streams, creeks, canals, and ditches may
      become dangerous rivers. In hilly terrain, 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 structures within multiple communities,
      some structures becoming uninhabitable or washed away. Streets
      and parking lots may become rivers of moving water with
      underpasses submerged. Driving conditions may become dangerous.
      Possible road and bridge closures with some weakened or washed
      out.

Protect against dangerous rainfall flooding having possible
significant impacts across coastal New Jersey and Delaware.

* WIND:
Protect against dangerous wind having possible significant impacts
across eastern New Jersey and central and southern Delaware. 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, protect against hazardous wind having possible limited impacts
across northern Delaware, western New Jersey, northeast Maryland, and
southeastern Pennsylvania.

* SURGE:
Protect against locally hazardous surge having possible limited impacts
along Delaware Bay, the tidal Delaware River, northeastern Chesapeake
Bay, and the Atlantic coasts of New Jersey and Delaware. 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:
Protect against a tornado event having possible limited impacts across
New Jersey and Delmarva. 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 complete all preparations to protect life and
property in accordance with your emergency plan. Ensure you are in a
safe location before the onset of strong winds or possible flooding.

Rapidly rising flood waters are deadly. If you are in a flood-prone
area, consider moving to higher ground. Never drive through a flooded
roadway. Remember, turn around don't drown!

If in a place that is vulnerable to high wind, such as near large
trees, a manufactured home, upper floors of a high-rise building, or on
a boat, consider moving to a safer shelter before the onset of strong
winds or flooding.

Closely monitor 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 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 AM EDT, or sooner if conditions
warrant.

$$
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