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5/9/2024

WT Staff





HAPPENING NOW
National Hurricane Preparedness Week May 5-11

Water news for Thursday, May 9, 2024 updated 1018 am EDT

National Hurricane Awareness Week May 5 - 11
Resources for household preparedness in preparation for hurricane season are available now through the National Oceanographic and Atmospheric Administration (NOAA) online.

Determine if you live in a flood-prone area
Anyone living in a flood-prone area is especially vulnerable to hurricane impacts. Find out today the flood risk for your area and plan accordingly. Coastal Flood Exposure Map tool , here.

Find out if you live in an evacuation zone
Determine if your location is vulnerable to storm surge, prepare an evacuation plan.
Find your evacuation zone , click here.

Current Streamflows, Drought Map from the USGS network in New York
Streamflows in New York State Thursday are a real mixed bag. Two extreme low flows are recorded in the west interior, up to extreme high flow showing up in Delaware River watershed. The full range of streamflow ratings show up, below normal and much below normal readings in northwest, central and south drainage basins. Long Island sound flows continue normal to much above normal with one 99th percentile high flow at Patchogue and a 95 percentile flow at Mill Neck in Nassau County, north side of Long Island.

The drought map includes area of the St. Lawrence River, Black River, Upper Hudson, Mohawk River, Niagara River - Lake Erie, Genesee, Allegheny, Chemung River rated below normal Thursday.


WT USA Flows and Flood Tracker provisional data from the network of USGS streamflow monitors
Eighty-eight streamflow gauges record flooding in the USA Thursday, up from sixty-six Wednesday. WT tracks the nation's most common natural disaster dynamics through the states of New York, Ohio, Georgia and Louisiana. As of this report, twelve sites record flooding on the network, 7 in Georgia, 5 in Louisiana.

North and central Georgia remain under tornado watch until 1 pm today with seven sites recording above flood stage in the northwest Tennessee and Coosa River watersheds of the Mississippi River drainage basin. Lookout Creek is flooding near New England on a steep upward flow trend in the Tennessee River watershed. In the Coosa River watershed, Coahulla Creek is flooding near Dalton, Holly Creek is flooding near Chatsworth, Talking Rock Creek is flooding near Hinton, Fausett Creek is flooding near Talking Rock and the Coosawattee and Cartecay Rivers are flooding near Ellijay. More to follow here as the storms roll through.

Louisiana Watershed Region 4 Sabine River flooding ended yesterday at the station near Burkeville, Sabine River continues to flood near Bon Wier, TX and near Ruliff, TX. Watershed Region 1 in the northwest continues to record flooding on two monitors, Bayou Dorcheat flooding near Springhill and Bayou Bodcau near Shreveport. Region 4 Calcasieu River continues to flood near Glenmora. See black tags on the map here.

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.

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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