4/27/2024
WT Staff
WEEKEND WATER REPORT
Saturday Edition
Upper Hudson River watershed hits the drought map
Water news for Saturday, April 27, 2024 1147 am CDT
Flows and Flood Tracker provisional data from the network of USGS streamflow monitors
Thirty-five streamflow gauges record flooding in the USA Saturday, down from thirty-seven Friday. WT tracks the nation's most common natural disaster dynamics through the states of New York, Ohio, Georgia and Louisiana. As of this report we are tracking 3 active floods monitored in the USGS network, all in Louisiana.
NYS drought map continues to expand Saturday, presently taking the north Counties from Lake Ontario minor tributaries west section through Black River, St Lawrence and Lake Champlain watersheds rated below normal as reported yesterday. As of this report the below normal area includes Upper Hudson River watershed south Washington and north Rensselaer Counties. NYS is peppered with much below seasonal normal flow values through all four directional drainage basins. No active flooding recorded as of this report, the same station runs 99th percentile on Long Island, Swan River is high flow at East Patchogue.
In Louisiana, three western water bodies continue to run over flood stage Saturday. Pearl River flooding ended around three am Saturday morning at the Town of Pearl River. Upstream flooding near Bogalusa ended in the wee hours Thursday. Region 1 Bayou Dorcheat is down overnight near Springhill, running seven inches over flood stage. Bayou Bodcau continues to recede near Shreveport, nine feet and four inches over flood stage. In Region 4, Sabine River is down three inches overnight, running a foot and three inches over near Ruliff, TX. Region 7 watershed in east Louisiana Tangipahoa River channel and surrounding area rated extreme drought.
Georgia's spring flooding came to an end Thursday. See the Timeline of river flooding for the full report. Georgia's drought map is filling in from the north state line, Tenessee River east and west watersheds and the Coosa River watershed are rated below normal Saturday. In the Atlantic basin, Savannah River watershed 7-day average streamflows are rated below normal from Columbia to central Screven Counties.
A handful of below normal rated flows through the Great Miami and Scioto River basins yesterday have shifted overnight as the Ohio streamflow map is spackled with much below seasonal normal flow levels on an eastward march through the Muskingum basin. On the Ohio drought map, Little Muskingum River basin remains below normal Saturday, while the Ohio River minor tributaries Brush-White Oak fall in at the below normal rating as well. As of this report, there are no extreme high or low flows recorded in Ohio streamflow network.
See black tags on the map for active flood, blue for high flow, 99th percentile or more.
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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