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6/5/2024
WT Staff
 HAPPENING NOW
Wednesday, June 5, 2024
NWS: Strong storms this afternoon
June 5, 2024 updated 433 pm EDT
WT USA Flows and Flood Tracker provisional data from the network of USGS streamflow monitors
One hundred and thirty-two floodings are active on the USA network Wednesday afternoon, approximately double the sixty-seven from this morning. Twenty of these floodings are occurring now in Louisiana. USGS streamflow gauges in flood are on a delay uploading the provisional data. Here is what we know now.
Watershed Region 1: Bayou Bodcau Lake and Caddo Lake are flooding near Shreveport and Mooringsport, respectively. Bayou Dorcheat continues to flood near Springhill. To the south into Region 4 watershed, border river Sabine floods near Logansport, runs within a foot of flood stage in action stage near Burkeville, flooding near Bon Wier and near Ruliff. East Region 4 Calcasieu River floods in the upper channel near Glenmora and downstream near Oberlin station. To the east, Region 5 watershed Mermentau River flooding at Mermentau and Vermilion Bay is flooding at Cypremort Point. See black tags indicating flood flow volume and gauge height, blue tags for 99th percentile flows updated daily here.
Hazardous Weather Outlook issued by National Weather Service, Peachtree City forecast center
521 am Wednesday, June 5
Scattered, mainly afternoon and evening thunderstorms are expected. Some storms may be strong. However, widespread severe weather is not anticipated.
Scattered thunderstorms are expected on Thursday ahead of a cold front. Another cold front will bring more thunderstorm activity late in the weekend and early next week. Widespread severe
weather is not anticipated at this time.
Impacting 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.
HABs Tracker
from Georgia Healthy Beaches, Coastal Health
Jekyll Island permanent beach advisories for presumed high bacterial levels remain in effect for Clam Creek Beach and St. Andrews Beach, the latest posted lab results from April 1 indicated below the threshold for bacterial contamination advisory. See the latest advisories and lab test results here.
National Centers for Coastal Ocean Science satellite monitoring program for harmful algal blooms in US water bodies has nine projects underway, providing daily color images interpreting the presence, extent and concentration of HABs in clear conditions with low wind speed. Three of these projects fall in the coverage area of WT USA, including New York's Lake Champlain, Ohio's Lake Erie west basin and Louisiana's southeast including Lake Pontchartrain, Black Bay, Lake Borgne and Chandeleur Sound. Until the NCCOS begins to provide an imaging program covering Georgia State water bodies, we continue to rely on ground observation and public reporting of suspicious algal blooms. Suspicious blooms may appear as spilled paint or grass clippings in the water.
See the HAB Tracker report here for CDC and federal EPA guidance on harmful algal blooms. Email photos of the suspected HAB with geotags to info@wtga.us.
WT USA Flows and Flood Tracker provisional data from the network of USGS streamflow monitors
Sixty-seven streamflow gauges indicate flow above flood stage in the USA midweek, up from fifty-five Tuesday. Northwest Louisiana has been under a Flood Watch for the last twenty four hours, indeed the number of flooding events recorded in the network has doubled there overnight. As of this report, nine flood events are recorded in the sample set of streamflow monitors, all nine in Louisiana.
National Weather Service Shreveport forecast center has northwest Louisiana under Flood Watch until 7 pm this evening as nine locations record flows above flood stage and six monitoring stations indicate extreme high flows where an official flood stage may or may not be known. In watershed Region 1, Bayou Bodcau Lake and Caddo Lake are flooding near Shreveport and Mooringsport. Bayou Dorcheat continues to flood near Springhill. To the south into Region 4 watershed, border river Sabine floods near Logansport, runs within a foot of flood stage in action stage near Burkeville and continues to run over the channel downstream near Ruliff, TX. East Region 4 Calcasieu River floods in the upper channel near Glenmora and downstream near Oberlin station. To the east, Region 5 watershed Mermentau River has resumed flooding at Mermentau and Vermilion Bay is flooding at Cypremort Point. See black tags indicating flood flow volume and gauge height, blue tags for 99th percentile flows updated daily here.
Drinking Water Matters
Atlanta: Multiple failures of old water mains results in State of Emergency, National Guard deployed.
A little more than a week after the release of US Army Corps of Engineers (USACE) and US Bureau of Reclamation (USBR) national "State of the Infrastructure" report, aging water mains in Atlanta blew guysers into the streets. Three large diameter mains ruptured in different locations on Friday, another blew out on Saturday resulting in the emergency transfer of dialysis patients from an impacted hospital in the downtown core, closure of government offices and businesses, closure of major tourism attractions Georgia Aquarium and World of Coca-Cola, cancellation of concerts at State Farm Arean and disruption of potable water service throughout the delivery area. A State of Emergency declared, water supplies deployed to residents from Atlanta Fire Halls. Public works crews have repaired the major ruptures, the BWA presently applied to impacted connections will be rescinded once the lab tests confirm the water supply is safe. US Army Corps of Engineers operates dams, canals and other water conveyance, including pressurized water lines, 12000 miles of conveyance through the nation. WTGA has reached out to the South Atlantic Division of USACE in Atlanta for more information on the drinking water infrastructure for Atlanta, including conveyance from the source, Chattahoochee River. More to follow.
As many drinking water facilities are supplied from surface water reservoirs, the streamflow situation is pertinent to both drinking water supply and quality. High flows can stir up sediment and cause turbidity in the reservoirs, requiring additional treatments to render the water potable. Low flow volume is linked to warmer temperatures in the reservoir and can be an issue for water quality where HABs are present. WT tracks streamflow trends with an eye to the impacts on drinking water supply and quality in each of the state's watersheds. Check the watershed layer on the map to see the direction of flow and streamflows that may be impacting drinking water today.
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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