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April 24, 2024
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4/1/2024

WT Staff



HAPPENING NOW
WT USA network flood update - Ohio under flood watch
Below normal streamflows creeping into central NYS

Water news for Monday, April 1, 2024 updated 323 pm


Flood Tracker provisional data from USGS streamflow monitors
Twenty-six streamflow gauges record flooding in the USA Monday afternoon, down from twenty-nine this morning. WT tracks the nation's most common natural disaster dynamics through New York, Ohio, Georgia and Louisiana. As of this report, ten monitors indicate active flooding; 5 in Georgia and 4 in Louisiana, several stations are recording high flows in Ohio, one station flooding this morning is no longer flooding.

New York State streamflows dip below normal Monday in Lower Hudson and Delaware River watersheds, as Chemung and Susquehanna watersheds drop further below normal, very few normal rated flows remain in the west interior, trending to much below seasonal normal values. Just two stations register flows above 90th percentile Monday, one in the Upper Hudson watershed and one on Long Island. Moderate hydrologic drought remains on Alleghany River watershed in the southwest with Oswego River - Finger Lakes, Chemung and Genesee Rivers watersheds remaining below normal on the drought map Monday.

In Louisiana, provisional data has Calcasieu River flowing half a foot above flood stage overnight near Glenmora. Could this be an April Fools Day trick? According to the flow volume plotted against time graph, flood stage was breached at midnight. We will verify this information with USGS and update here. In Region 1 northwest LA, Bayou Bodcau shows itself five and three quarter feet above flood stage near Shreveport. Pearl River on the east state border runs two feet over flood stage near Bogalusa in Washington Parish and a foot over at downstream Town of Pearl River in St. Tammany Parish.

Georgia, Day 26: Gulf of Mexico basin Ochlockonee River stopped flooding near Concord, Florida yesterday just before 5 pm, currently running a couple of inches under flood stage. Suwannee River tributary Withlachoochee River tucked back into the channel at Skipper Bridge Road near Bemiss around 5 am this morning. On the Atlantic side of the drainage divide, Altamaha and tributary Ohoopee Rivers are still flooding near Baxley and Reidsville respectively. Savannah River is still flooding two feet three inches over near Cylo and the Little Satilla and Satilla Rivers are still flooding nine inches over and two feet over flood stage near Offerman and Atkinson, respectively.

Ohio flood watch: A flood watch is in effect from 2 pm today until tomorrow evening. Multiple rounds of thunderstorms are forecast for afternoon and evening Monday into Tuesday.The streamflow map is signaling twelve extreme high flows in a band running west to east through the center of the state. More to follow.

See black tags on the map for active flood, blue for high flow, 99th percentile or more.

As many NYS 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. WTNY.us tracks streamflow trends with an eye to the impacts on drinking water supply and quality in each of the state's 17 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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