5/10/2024
WT Staff
HAPPENING NOW
Above normal to much above normal streamflows statewide
NWS: widespread showers Saturday
Water news for Friday, May 10, 2024 1106 am EDT
National Weather Service weekend forecast
Cleveland and Wilmington forecast offices say rain is coming Saturday. Cleveland is looking at 100% chance of rain, Toledo 80%, Columbus and Cincinnati forecast is less certain, 70% chance of rain for tomorrow. No hazardous weather expected as of this report.
Current streamflow situation provisional data from USGS streamflow monitors in Ohio
Above normal to much above normal streamflows occupy the Ohio current streamflow dashboard for northwest Ohio Friday. Sandusky River watershed runs at the 98th percentile, Blanchard and Auglaize run above 90th percentile. The northeast is recording normal to above normal flow volume and depth. South of the drainage divide, Great Miami and interior Scioto River basins flow above normal to much above normal. Muskingum River basin tributaries on the east side of the upper basin area are recorded much above seasonal normal. Ohio River minor tributaries run normal to above normal all around the south border of Ohio Friday. The drought map has cleared overnight, leaving Wills Creek watershed in the Muskingum River basin at severe hydrologic drought, the Little Muskingum River basin has been cleared from the map after more than a week below normal. In the northeast, the Black-Rocky, Cuyahoga and Grand River watersheds remain below normal heading into the weekend, rain tomorrow may shift this trend.
WT USA Flows and Flood Tracker provisional data from the network of USGS streamflow monitors
Eighty streamflow gauges record flooding in the USA Friday, down from eighty-eight Thursday. WT tracks the nation's most common natural disaster dynamics through the states of New York, Ohio, Georgia and Louisiana. As of this report, nine sites record flooding on the network, four in Georgia, five in Louisiana.
After a day of tornadoes, damaging winds and heavy rainfall and flooding in north and central Georgia yesterday, Georgia is again experiencing widespread rainfall this morning. Flooding has shifted through the tributaries of the Tennessee and Coosa River watersheds over the last twenty four hours. Lookout Creek is still a foot and three inches over flood stage near New England on a sharp downward flow trend in the Tennessee River watershed. In the Coosa River watershed, Conasauga River breached flood stage around 545 pm yesterday, presently recorded flowing a foot over the channel at Tilton. Coosa tributary Coahulla Creek is still recorded at a foot and three inches over flood stage near Dalton. Oostanula River breached flood stage at Calhoun, running half a foot over at this report. Minor tributaries ended flooding within hours of starting yesterday as the rain runoff from the mountains has been collected and concentrated into larger water bodies today. Holly Creek is no longer flooding near Chatsworth, Talking Rock Creek stopped flooding near Hinton, Fausett Creek is no longer flooding near Talking Rock and the Coosawattee and Cartecay Rivers flooding ended before noon yesterday near Ellijay. See the black tags for flood volume updated daily here as the storms roll through.
Louisiana has five stations recording flood flows Friday morning. Region 4 watershed Sabine River continues to flow two to three feet out of the channel near Bon Wier, TX and Ruliff, TX. Calcasieu River runs a foot and four inches above flood stage near Glenmora. Region 1 watershed, Bayou Dorcheat appears to have peaked and leveled off, provisionally measured a foot and nine inches out of the channel near Springhill. Bayou Bodcau has dropped down to just north of five feet over the channel near Shreveport. See black tags on the map here.
Harmful Algal Bloom (HAB) Monitoring based on satellite images from National Centers for Coastal Ocean Science (NCCOS)
The latest image obtained from NCCOS for west basin Lake Erie was captured May 8 at a surface wind speed of 16.1 mph. The image captures a clear view of Lake Erie shorelines, islands and open water with no visible HABs. The high wind speed could be submerging HABs, though we have not observed any HAB activity since April. Click here for more information on Lake Erie HABs spotted in April.
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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