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Seneca River low at Baldwinsville
NWS: Marginal risk for severe thunderstorms later today

Water news for Wednesday, May 8, 2024 updated 958 am EDT

National Weather Service Hazardous Weather Outlook issued 323 am EDT
Showers and thunderstorms will move across the area early this morning, but they are not expected to be severe. Additional showers and thunderstorms will develop along a weak cold front later this afternoon near and north of the NY State Thruway corridor, and will weaken as they move south and east this evening. One or two storms could produce damaging wind gusts and hail. There is a marginal risk for severe thunderstorms.

Impacting Northern Oneida-Southern Cayuga-Onondaga-Madison-Southern Oneida- Cortland-Chenango-Otsego Counties.

Current Streamflows, Drought Map from the USGS network in New York
Normal streamflows predominate statewide midweek with below normal and much below normal flows in the west interior and northwest. More stations record below normal flows through the west Catskills of the Mohawk River watershed, Delaware River and Ramapo River watersheds while the Lower Hudson flows run seasonal normal. Long Island sound flows normal to much above normal with one high flow at Patchogue. Two low flows are recorded Wednesday including the Seneca River near Baldwinsville and Mohawk River tributary Manor Kill 1st percentile flow recorded at West Conesville near Gilboa.

The drought map has areas in seven watersheds rated below normal Wednesday. St. Lawrence River, Black River, Upper Hudson, Mohawk River, Niagara River - Lake Erie, Genesee, Allegheny, Chemung River appear on the drought map.

Harmful Algal Bloom HAB Monitoring satellite program of the National Center for Coastal Ocean Science (NCCOS)
New York Department of Environmental Conservation surface observation of HABs monitoring season has not yet opened as of this report. Check back here for the daily update on HABs monitoring status.

The latest satellite image uploaded from NCCOS was captured May 7 at undetermined wind speed. This image reveals a clear view of Lake Champlain. No HAB activity is visible. A prior capture dated April 26 shows dozens of localized blooms at moderate concentration 100 thousand cells per 100 ml in various locations along the east, west and island shorelines and open water of Lake Champlain. For a description of the April 26 capture, click here or click on the HABs button to the right of the map.

WT USA Flows and Flood Tracker provisional data from the network of USGS streamflow monitors
Sixty-six streamflow gauges record flooding in the USA Wednesday, up from seventy-six Tuesday. 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 watching six active flooding events recorded on the network, all in Louisiana.

Watershed Region 1 continues to record flooding midweek. Bayou Dorcheat is up overnight, running more than a foot over flood stage near Springhill. Bayou Bodcau runs six feet over flood stage near Shreveport. Region 4 Calcasieu River continues to flood near Glenmora, a foot and seven inches over the channel. Sabine River continues to flood from the mid-channel station near Burkeville, six inches above flood stage, four feet above flood stage near Bon Wier, TX and two feet seven inches over the channel near Ruliff, TX.

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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