[Tropical] Hurricane Local Statement

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WTUS82 KCAE 310305
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GAZ063>065-077-SCZ022-027>031-035-037-038-041-135>137-311115-

Tropical Storm Idalia Local Statement Advisory Number 18
National Weather Service Columbia SC  AL102023
1105 PM EDT Wed Aug 30 2023

This product covers the Midlands of central South Carolina and east central Georgia CSRA


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

* CHANGES TO WATCHES AND WARNINGS:
    - The Tropical Storm Warning has been cancelled for Aiken,
      Barnwell, Burke, Columbia, Kershaw, Lexington, McDuffie,
      Richland, and Richmond

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Warning is in effect for Bamberg, Calhoun,
      Central Orangeburg, Clarendon, Lee, Northwestern Orangeburg,
      Southeastern Orangeburg, and Sumter

* STORM INFORMATION:
    - About 60 miles east-southeast of Orangeburg SC or about 70
      miles south-southeast of Sumter SC
    - 33.0N 80.0W
    - Storm Intensity 60 mph
    - Movement Northeast or 45 degrees at 21 mph

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

Tropical Storm Idalia will move northeast along eastern South
Carolina through tonight. A flash flooding threat continues across the
eastern Midlands and Pee Dee. Rainfall totals of 4 to 8 inches are
expected in those areas. Tropical Storm force wind gusts 40 to 50 mph
are also possible, but winds should slowly diminish after Midnight.

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

* FLOODING RAIN:
Potential impacts from the flooding rain are still unfolding across
the eastern Midlands. Remain well guarded against life-threatening
flood waters having possible extensive impacts.
If realized, these 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.

Potential impacts from the flooding rain are still unfolding across
the eastern Midlands. Remain well guarded against dangerous
flood waters having additional significant impacts.

Elsewhere across the Midlands of central South Carolina and east
central Georgia CSRA, little to no impact is anticipated.

* WIND:
Potential impacts from the main wind event are now unfolding across
the eastern Midlands. Remain well sheltered from dangerous
wind having possible significant impacts. If
realized, these impacts 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.

Potential impacts from the main wind event are also now unfolding
across the eastern Midlands. Remain well sheltered from
hazardous wind having possible limited impacts.

Elsewhere across the Midlands of central South Carolina and east
central Georgia CSRA, little to no impact is anticipated.

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

* OTHER PREPAREDNESS INFORMATION:
Now is the time to stay inside and away from windows. Listen for
updates and be ready in case you lose electrical power. Keep a
battery-powered radio, charged cell phone and flashlight handy.

If you are prone to flooding, be prepared for the possibility of a
quick and dramatic rise in water levels.

* ADDITIONAL SOURCES OF INFORMATION:
- For information on appropriate preparations see ready.gov
- For information from the state of South Carolina see scemd.org
- For information from the state of Georgia see gema.ga.gov

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

The next local statement will be issued by the National Weather
Service in Columbia SC around 5 AM, or sooner if conditions warrant.

$$
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