[Tropical] Hurricane Local Statement
EMWIN Server
emwin at nashvilleweather.net
Mon Sep 11 07:39:00 CDT 2017
WTUS82 KCHS 111238
HLSCHS
GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-112045-
Tropical Storm Irma Local Statement Intermediate Advisory Number 49A
National Weather Service Charleston SC AL112017
838 AM EDT Mon Sep 11 2017
This product covers southeast South Carolina and southeast Georgia
**SIGNIFICANT IMPACTS FROM TROPICAL STORM IRMA TODAY THROUGH TONIGHT**
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- The Hurricane Watch has been cancelled for Beaufort, Coastal Bryan,
Coastal Chatham, Coastal Colleton, Coastal Jasper, Coastal Liberty,
Coastal McIntosh, and Inland Chatham
- The Hurricane Watch has been cancelled for Inland Bryan, Inland
Jasper, Inland Liberty, and Inland McIntosh
* CURRENT WATCHES AND WARNINGS:
- A Storm Surge Warning and Tropical Storm Warnings are in effect for
Beaufort, Coastal Bryan, Coastal Chatham, Coastal Colleton, Coastal
Jasper, Coastal Liberty, Coastal McIntosh, and Inland Chatham
- A Storm Surge Warning and Tropical Storm Warning are in effect
for Charleston and Tidal Berkeley
- A Tropical Storm Warning is in effect for Allendale, Bulloch,
Candler, Dorchester, Effingham, Evans, Hampton, Inland
Berkeley, Inland Colleton, Jenkins, Long, Screven, and Tattnall
- A Tropical Storm Warning is in effect for Inland Bryan, Inland Jasper,
Inland Liberty, and Inland McIntosh
* STORM INFORMATION:
- About 290 miles southwest of Charleston SC or about 210 miles
south-southwest of Savannah GA
- 29.5N 82.9W
- Storm Intensity 70 mph
- Movement North-northwest or 340 degrees at 18 mph
SITUATION OVERVIEW
------------------
The center of Tropical Storm Irma will move into southern Georgia
this afternoon while steadily weakening. Irma is a large tropical
storm and will continue to produce significant impacts across southeast
South Carolina and southeast Georgia. Life-threatening inundation is expected
along the coast around the time of high tide later this morning into this
afternoon. Flash flooding will be possible, with the highest chances occurring
across southeast Georgia and the coastal counties of southeast South Carolina
today. Tropical storm-force winds will impact much of the region, with a low
probability of near hurricane force gusts. The risk for tornadoes increases
through early this afternoon, continuing into early this evening.
POTENTIAL IMPACTS
-----------------
* SURGE:
Potential impacts from the main surge event are now unfolding across
coastal South Carolina and Georgia. Remain well away from life-threatening
surge. If realized, these impacts include:
- Areas of inundation of saltwater along immediate shorelines and
in low-lying spots farther inland near rivers and creeks, with
storm surge flooding accentuated by waves. Damage to several
buildings, mainly near the coast.
- Sections of near-shore escape routes and secondary roads become
weakened or washed out, especially in normally vulnerable low
spots.
- Moderate to major beach erosion with heavy surf breaching
dunes. Strong and numerous rip currents.
- Minor to moderate damage to marinas, docks, boardwalks, and
piers. Several small craft broken away from moorings,
especially in unprotected anchorages. Some navigation aids
possibly displaced well off station, creating difficult
navigation near inlets and waterways.
Elsewhere across southeast South Carolina and southeast Georgia,
little to no impact is anticipated.
* FLOODING RAIN:
Potential impacts from the flooding rain are still unfolding across
southeast South Carolina and southeast Georgia. Remain well guarded
against life-threatening flood waters having possible extensive impacts.
If realized, these impacts include:
- Major rainfall flooding could prompt many rescues.
- Rivers and tributaries could rapidly overflow their banks in
multiple locations. Small streams, creeks, canals, ditches may
become dangerous rivers. Flood control systems and barriers
could become stressed.
- Flood waters could enter many structures within multiple
communities; some structures become uninhabitable or are washed
away. Flood waters could cover multiple 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.
- Drinking water and sewer services could be negatively impacted.
- Hazardous containers and materials could possibly be present in
flood waters.
* TORNADOES:
Potential impacts from tornadoes are still unfolding across southeast
South Carolina and southeast Georgia. Remain well braced against a
tornado event having possible limited impacts. If
realized, these 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.
* WIND:
Potential impacts from the main wind event are now unfolding across
southeast South Carolina and southeast Georgia. 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.
- 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------
* EVACUATIONS:
Do not return to evacuated areas due to hazardous conditions.
* OTHER PREPAREDNESS INFORMATION:
Now is the time to remain safely sheltered from the storm. Stay
inside and away from windows. Listen for updates and be ready in case
you lose electrical power. Locate your battery powered radio and
flashlight from your Emergency Supplies Kit. Keep these items close.
During the peak of the storm, keep your shoes on and rain gear handy.
Boots and tennis shoes offer the best foot protection if you become
unexpectedly exposed to the elements.
Continue to keep your cell phone well charged for as long as
possible. If you lose power, use it more sparingly and mainly for
personal emergencies and check-ins. Do not overload communications
systems with idle chatter.
Be ready to move to the identified safe room if your home or shelter
begins to fail. Quickly move to an interior room on the lowest floor.
Put as many sturdy walls between you and the storm as you can.
Protect your head and body.
* 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 12 PM EDT, or sooner if conditions
warrant.
$$
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