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Hurricane Ian Local Statement Advisory Number 25
National Weather Service Columbia SC AL092022
519 PM EDT Wed Sep 28 2022
This product covers the Midlands of central South Carolina and east central Georgia CSRA
**IAN LIKELY TO BRING SIGNIFICANT IMPACTS TO THE MIDLANDS OF SOUTH
CAROLINA AND THE CSRA IN GEORGIA**
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- A Tropical Storm Watch has been issued for Aiken, Bamberg,
Barnwell, Burke, Calhoun, Central Orangeburg, Chesterfield,
Clarendon, Columbia, Edgefield, Fairfield, Kershaw, Lee,
Lexington, Lincoln, McCormick, McDuffie, Newberry, Northern
Lancaster, Northwestern Orangeburg, Richland, Richmond, Saluda,
Southeastern Orangeburg, Southern Lancaster, and Sumter
* CURRENT WATCHES AND WARNINGS:
- A Tropical Storm Watch is in effect for Aiken, Bamberg,
Barnwell, Burke, Calhoun, Central Orangeburg, Chesterfield,
Clarendon, Columbia, Edgefield, Fairfield, Kershaw, Lee,
Lexington, Lincoln, McCormick, McDuffie, Newberry, Northern
Lancaster, Northwestern Orangeburg, Richland, Richmond, Saluda,
Southeastern Orangeburg, Southern Lancaster, and Sumter
* STORM INFORMATION:
- About 490 miles south of Columbia SC or about 450 miles south
of Augusta GA
- 26.9N 82.0W
- Storm Intensity 140 mph
- Movement North-northeast or 20 degrees at 8 mph
SITUATION OVERVIEW
------------------
Tropical Cyclone Ian has made landfall in southwestern Florida. The
storm will continue to slowly track northward across the Florida
Peninsula through Thursday, then approach coastal portions of Georgia
and southern South Carolina on Friday.
As the storm moves farther north into South Carolina through the
weekend, significant impacts from heavy rain, and tropical storm force
winds are likely across the region. The heavy rainfall could produce
areas of considerable flooding, especially Friday into Friday night.
POTENTIAL IMPACTS
-----------------
* FLOODING RAIN:
Prepare for life-threatening rainfall flooding having possible
extensive impacts across the Midlands of central South Carolina
and east central Georgia CSRA.
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 Midlands of central South Carolina and east central
Georgia CSRA.
* WIND:
Prepare for hazardous wind having possible limited impacts across the
Midlands of central South Carolina and east central Georgia CSRA.
Potential impacts include:
- Damage to porches, awnings, carports, sheds, and unanchored
mobile homes. Unsecured lightweight objects blown about.
- Many large tree limbs broken off. A few trees snapped or
uprooted, but with greater numbers in places where trees are
shallow rooted. Some fences and roadway signs blown over.
- A few roads impassable from debris, particularly within urban
or heavily wooded places. Hazardous driving conditions on
bridges and other elevated roadways.
- Scattered power and communications outages.
* TORNADOES:
Little to no additional impacts are anticipated at this time
across the Midlands of central South Carolina and east central
Georgia CSRA.
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, and tornadoes extend well away from the center of the
storm.
If you live in a place particularly vulnerable to flooding, such as
near 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.
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 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 11 PM EDT, or sooner if conditions
warrant.
$$