[Tropical] Hurricane Local Statement

[EMWIN Server]

WTUS82 KCHS 012137
HLSCHS
GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-020545-

Tropical Storm Isaias Local Statement Advisory Number 19
National Weather Service Charleston SC  AL092020
537 PM EDT Sat Aug 1 2020

This product covers southeast South Carolina and southeast Georgia

**ISAIAS EXPECTED TO IMPACT THE AREA MONDAY**

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

* CHANGES TO WATCHES AND WARNINGS:
    - A Tropical Storm Watch has been issued for Beaufort,
      Charleston, Coastal Bryan, Coastal Chatham, Coastal Colleton,
      Coastal Jasper, Coastal Liberty, Coastal McIntosh, Dorchester,
      Inland Berkeley, Inland Bryan, Inland Chatham, Inland Colleton,
      Inland Jasper, Inland Liberty, Inland McIntosh, and Tidal
      Berkeley

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Watch is in effect for Beaufort, Charleston,
      Coastal Bryan, Coastal Chatham, Coastal Colleton, Coastal
      Jasper, Coastal Liberty, Coastal McIntosh, Dorchester, Inland
      Berkeley, Inland Bryan, Inland Chatham, Inland Colleton, Inland
      Jasper, Inland Liberty, Inland McIntosh, and Tidal Berkeley

* STORM INFORMATION:
    - About 530 miles south of Charleston SC or about 500 miles
      south-southeast of Savannah GA
    - 25.1N 78.7W
    - Storm Intensity 70 mph
    - Movement Northwest or 310 degrees at 10 mph

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

Tropical Storm Isaias continues to move to the northwest through
the Bahamas. Isaias is forecast to approach the east coast of Florida
on Sunday, then lift northward toward the southeast Georgia and
southeast South Carolina coast Monday. Deteriorating conditions will
overspread the region beginning Monday morning, continuing through
Monday night. Impacts are expected to include strong winds, heavy
rainfall, coastal flooding, strong rip currents, and high surf. The
heaviest rain is expected to impact locations along the coast,
including the Charleston Tri-County region. The risk for flash
flooding could be enhanced along the southeast South Carolina coast if
heavy rainfall coincides with high tide, especially Monday night.
Additionally, dangerous marine conditions are expected across the
adjacent coastal waters including Charleston Harbor.

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

* FLOODING RAIN:
Prepare for dangerous rainfall flooding having possible significant
impacts across southeast Georgia and southeast South Carolina along and
east of Interstate 95, especially for the Charleston Tri-County region
including Downtown Charleston. Potential impacts include:
    - Moderate rainfall flooding could prompt some rescues.
    - Rivers and tributaries could quickly become swollen with
      swifter currents and overspill their banks in a few places,
      especially in normally vulnerable spots. Small streams, creeks,
      canals, and ditches overflow.
    - Flood waters can enter some structures or weaken foundations.
      Several places could 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 interior portions of southeast Georgia and
southeast South Carolina, along and west of Interstate 95.

* WIND:
Prepare for dangerous wind having possible significant impacts across
coastal portions of Charleston County. 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.
    - Some roads impassable from large debris, and more within urban
      or heavily wooded places. A few bridges and access routes
      impassable.
    - Travel by vehicle or on foot increasingly difficult. Danger of
      death or injury from falling objects such as trees or electric
      wires outside.
    - Scattered power and communications outages, but more prevalent
      in areas with above ground lines, which could persist for hours
      or days.
    - Some poorly secured small craft could break loose from their
      moorings.

Also, prepare for hazardous wind having possible limited impacts
across mainly coastal southeast Georgia and southeast South Carolina.

* SURGE:
Prepare for locally hazardous surge having possible limited impacts
across coastal southeast Georgia and southeast South Carolina.
Potential impacts in this area include:
    - Localized inundation of saltwater mainly along immediate
      shorelines and in low-lying spots farther inland near rivers
      and creeks.
    - Sections of near-shore roads and parking lots become overspread
      with surge water. Driving conditions hazardous in places where
      surge water covers the road.
    - Minor to moderate beach erosion. Heavy surf possibly breaching
      dunes, mainly in normally vulnerable locations. Strong rip
      currents.
    - Minor to locally moderate damage to marinas, docks, boardwalks,
      and piers. A few small craft broken away from moorings.

Elsewhere across southeast South Carolina and southeast Georgia,
little to no impact is anticipated.

* TORNADOES:
Prepare for a tornado event having possible limited impacts across
eastern portions of Berkeley and Charleston counties. Potential impacts
include:
    - Isolated tornadoes can hinder the execution of emergency plans.
    - Isolated locations could experience tornado damage, along with
      power and communications disruptions.
    - In isolated locations, tornadoes could damage trees, vehicles,
      boats and buildings, especially mobile homes and other poorly
      constructed structures.

Elsewhere across southeast South Carolina and southeast Georgia,
little to no impact is anticipated.

* OTHER COASTAL HAZARDS:
Isaias will also result in hazardous conditions along the coast including
dangerous rip currents, high surf, and at least minor beach erosion.
These impacts are likely to peak Monday and Monday night.

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.

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 Charleston SC around 11 PM EDT, or sooner if conditions
warrant.

$$
This weather bulletin was brought to you by:
www.nashvilleweather.net