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12/26/2023
WT Staff
HAPPENING NOW
Flooding and Fog advisory
Big Creek flooding at GA9
Tuesday, December 26, 2023 - last updated 912 am EST
National Weather Service warning statement 502 am December 26, 2023
Patchy of dense fog is expected through 10 AM this morning. Rainfall will continue in the region today with isolated totals near an inch expected in northeast Georgia. This rainfall could lead to rises along local streams or isolated flooding.
Baldwin-Banks-Barrow-Bartow-Bibb-Bleckley-Butts-Carroll-Catoosa-Chattahoochee-Chattooga-Cherokee-Clarke-Clayton-Cobb-Coweta-Crawford-Crisp-Dade-Dawson-DeKalb-Dodge-Dooly-Douglas-Emanuel-Fannin-Fayette-Floyd-Forsyth-Gilmer-Glascock-Gordon-Greene-Gwinnett-Hall-Hancock-Haralson-Harris-Heard-Henry-Houston-Jackson-Jasper-Jefferson-Johnson-Jones-Lamar-Laurens-Lumpkin-Macon-Madison-Marion-Meriwether-Monroe-Montgomery-Morgan-Murray-Muscogee-Newton-North Fulton-Oconee-Oglethorpe-Paulding-Peach-Pickens-Pike-Polk-Pulaski-Putnam-Rockdale-Schley-South Fulton-Spalding-Stewart-Sumter-Talbot-Taliaferro-Taylor-Telfair-Toombs-Towns-Treutlen-Troup-Twiggs-Union-Upson-Walker-Walton-Warren-Washington-Webster-Wheeler-White-Whitfield-Wilcox-Wilkes-Wilkinson Counties
Streamflow situation from USGS Waterwatch gages throughout Georgia
Three gauges record flooding Tuesday morning as rain continues in the north, another inch of rainfall expected as of this update. St Marys's River continues to flow above minor flood stage at Folkston and MacClenny. Big Creek breached flood stage at Cumming 330 am Tuesday rising rapidly. A number of stations in the northeast have surpassed the 99th percentile flow volume, showing on our map with a blue tag. Flood stage is given where available.
See black location tags on the map for flood, blue tags for 99th percentile high flow details.
Drought Map USGS 7-day average streamflow compared with historic average
Drought area has expanded and intensified over the holidays with Upper Flint, Upper Coosa and Tallapoosa watersheds in the Mississippi basin accelerated to to severe hyrdologic drought rating.
Coosa River watershed's Whitfield and Murray Counties are rated severe drought on Tuesday, along with Tallapoosa watershed Haralson and Carroll Counties and a large area of the Upper Flint River watershed, while rain across the north is spiking high flows and flooding creeks. The drought map considers the 7-day average streamflow values agains the average historic flow on this date to come up with a rating. As we see current streamflows rising above 90th percentile values in the northwest and above 99th percentile in the north central and northeast the drought map will take a day or two to reflect this.
Chattahoochee River is rated below normal from headwaters in Union County to the Florida line with a moderate drought rated section from Douglas - South Fulton Counties down to northwest Muscogee County. Upper Flint River watershed shifts from severe to below normal at Schley, Marion, Sumter and Lee Counties, dropping into moderate drought in the south of these same counties. Flint River watershed returns to normal at Flint and Dougherty Counties.
In the Atlantic basin, the Upper Savannah River watershed is rated moderate drought from Rabun to Oglethorpe, below normal from Oglethorpe to north Columbia County. Upper Ocmulgee and Upper Oconee watersheds are rated below normal as we saw Friday last week.
USGS seven-day average streamflows at each monitoring location are rated against the historic average flow volume for this day. Results appear on the drought map, showing surface area with a rating: below normal, moderate drought, severe drought or extreme drought. The drought-rated surface area most often follows watershed lines, the physical topography of drainage and direction of flow of the surface water across the state. The watershed layer on the map shows surface area impacted by streamflows in each drainage area. Turn the directional arrows on to see which way the water flows, along with hazardous spills reported in the area that could have an impact on water quality.
Hazardous Spills files released from Georgia Department of Environmental Conservation
A tractor trailer tank is reported ruptured on the highway spilling 100 gallons of diesel near Lawrence in Dekalb County. Responders applied an absorbent product to clean up the spill. A spill of 15000 gallons of sewage is reported spilled on Kenora Drive in Atlanta with no cause reported. More to follow.
HABs update from Georgia Department of Natural Resources - Coastal Resources Division Shellfish and Water Quality Unit
Two permanent beach advisories remain in effect on Jekyll Island including Jekyll Clam Creek Beach on the north end and St Andrews Beach on the south end. Lab tests on October 16 samples show the enterococcus bacteria levels below the health advisory threshold. Clam Creek Beach came in at 20 cfu per 100 ml and 7 cfu per 100 ml for St Andrews.
Public notification of the location of harmful algal blooms helps to protect pets, swimmers and waders from venturing into areas with known HABs and helps recreational water users find clear access points on state water bodies. Observations of HABs can be reported here by email, info@wtga.us for public notification on our map and through SMS alerts. The identity of the reporting party is not included in our notifications. Include a photo and location geo-tag so that the bloom can be accurately placed on the map and confirmed by local authorities.
Drinking Water Advisories
Cleveland BWA has been rescinded.
USGS Provisional Data Statement
Data are provisional and subject to revision until they have been thoroughly reviewed and received final approval. Current condition data relayed by satellite or other telemetry are automatically screened to not display improbable values until they can be verified.
Provisional data may be inaccurate due to instrument malfunctions or physical changes at the measurement site. Subsequent review based on field inspections and measurements may result in significant revisions to the data.
Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Information concerning the accuracy and appropriate uses of these data or concerning other hydrologic data may be obtained from the USGS.
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