WTGA - WATERTODAY GEORGIA

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September 18, 2024

WT INTERNATIONAL

12/21/2023

WT Staff

Floods and Flows

as of December 21, 2023

Active Flooding or above 99th percentile as of 1132 am

6 USGS streamflow gages reading above flood stage

Satilla River flooding at GA158 near Waycross has peaked and leveled off - running 14.39 ft deep at 3480 cfs - flood stage is 14 ft Flooding started Dec 19 2:45 pm
Little Satilla River flooding at Offerman has leveled off - running 9.94 ft deep at 1900 cfs - flood stage is 9 ft - flooding started at 245 am on Dec 18
Alabaha River flooding at GA 203 near Blackshear has peaked and is declining - running 9.08 ft deep at 1250 cfs - flood stage is 9 ft flooding started at 315 pm on Dec 18
St Marys River is flooding and still rising at Folkston - running 11.41 ft deep heading toward moderate flood stage 12 ft - minor flood stage 7 ft was breached Dec 17
St Marys River flooding near MacClenny FL has peaked and is declining - running 16.25 ft deep at 6760 cfs - flood stage 12 ft breached Dec 17 at 1230 pm - moderate flood stage 15 ft breached by 10 pm Dec 17
North Prong St Marys River flooding at Moniac has peaked and is declining - running 13.11 ft deep at 1360 cfs - flood stage 12 ft was breached 130 pm Dec 17

0 streamflow gages at 99th percentile or action stage

Drought Map and Low flow from the USGS WaterWatch seven-day average streamflow compared with historic streamflow

4 stations rated low

Mill Creek is flowing low near Crandall - running 1.22 ft deep at 2.22 cubic feet per second

Chattahoochee River is flowing low above Roswell - running 2.7 ft deep ft deep at 523 cubic feet per second

Flint River is flowing low near Thomaston - running 3.35 ft deep ft deep at 460 cubic feet per second

Flint River is flowing low near Albany - running 1.83 ft deep ft deep at 1060 cubic feet per second

Moderate hydrological drought rated area includes:

Upper Savannah River watershed from Rabun to North Hart County
Tallapoosa River watershed Haralson and Carroll Counties

Below normal:

Coosa River watershed Whitfield, Murray, Chattooga, Floyd, Polk, Bartow, Cherokee, Pickens and Dawson Counties
Tennessee River west watershed including Dade, Walker, Catoosa Counties
Tennessee River east watershed including parts of Fannin, Union and Towns Counties
Upper Savannah River watershed including Elbert, Wilkes and Lincoln, Franklin, Banks, Madison and Oglethorpe
Upper Chattahoochee River watershed from headwaters in Union County to northwest Muscogee
Flint River watershed from Coweta, Fayette Counties to Taylor County
Ocmulgee River watershed from Dekalb to Bibb County

As sourced from USGS Waterwatch Current Streamflow

FLOOD SAFETY

What is the difference between a Flood Watch and a Flood Warning issued by the National Weather Service?

Flash Flood Warning: Take Action! A Flash Flood Warning is issued when a flash flood is imminent or occurring. If you are in a flood prone area move immediately to high ground. A flash flood is a sudden violent flood that can take from minutes to hours to develop. It is even possible to experience a flash flood in areas not immediately receiving rain.
Flood Warning: Take Action!
A Flood Warning is issued when the hazardous weather event is imminent or already happening. A Flood Warning is issued when flooding is imminent or occurring.
Flood Advisory: Be Aware:
A Flood Advisory is issued when a specific weather event that is forecast to occur may become a nuisance.

A Flood Advisory is issued when flooding is not expected to be bad enough to issue a warning. However, it may cause significant inconvenience, and if caution is not exercised, it could lead to situations that may threaten life and/or property.
Flood Watch: Be Prepared:
A Flood Watch is issued when conditions are favorable for a specific hazardous weather event to occur.

A Flood Watch is issued when conditions are favorable for flooding. It does not mean flooding will occur, but it is possible.

Be prepared, stay safe through flood events

March 13, 2023

Did you know,

6 inches of moving water can knock an adult down

And 12 inches of flowing water can carry a car away!

(From ready.gov)

Stay safe during flood events, watch for flood alerts in your area, here in BLACK.

Avoid driving into flooded areas, and take caution trying to drive out of a flood zone.

Avoid using bridges over high flowing rivers.

If possible, move to higher ground, get uphill, or move to a higher floor in your building or home,

leaving yourself an exit to the roof if necessary. Do not become trapped in an attic!

Keep dry food, bottled water, flashlight and extra batteries, cell phone charger packed in go bags for all of your household and pets.

Have flotation devices accessible for every member of your household in case you need to evacuate on foot.

If you must drive to get out of a flood zone,

have a high-quality window breaking/seatbelt cutting device in your vehicle, secured to your rearview mirror for fast retrieval.

You may not be able to reach your car’s glove box in an emergency situation.

The contents of seat and door storage compartments and center console may become displaced in an emergency,

causing you to lose track of items that are not secured.

Even if your vehicle has rolled or tipped over, as long as you are still belted in, you should be able to reach the rear-view mirror to retrieve your emergency tool.

Keep your seatbelt on until the vehicle has made impact with the water body. It will often float on the surface for a short time.

There is time to get out through an open side window. Act calmly, deliberately and quickly, without hesitation.

Use your tool to cut your seatbelt if the buckle will not release in the normal way.

Use your window breaking device toward a corner of your side window to break the safety glass.

Attempting to break the window at the center may not work.

Windshields and rear windows are reinforced and will not break as easily as the side windows.

If your vehicle is in any danger of becoming submerged, you need to get out before it goes underwater.

Submerged vehicles may roll over or invert underwater, disorienting you and others inside.

Get familiar with your local streams and rivers, know your normal flow levels and check the USGS Waterwatch Current Streamflow for the real time flow volume and depth.

Find the monitoring sites upstream and downstream nearest your home and sign up for high flow alerts.

https://waterwatch.usgs.gov/

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