4/19/2024
WT Staff
HAPPENING NOW
90% chance of showers for interior
Statewide rain showers today
Water news for Friday, April 18, 2024 924 am EDT
Flood Tracker provisional data from USGS streamflow monitors
Fifty-seven streamflow gauges record flooding in the USA Friday, down from sixty-six yesterday. 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 19 monitors indicating active flooding: 7 in Georgia and 12 in Louisiana.
As of this report, New York has no active flooding, two monitors indicate flow above the 99th percentile state wide: Swan River is still recording high flow at East Patchogue on Long Island and Sacandaga River is high at Stewarts Bridge Reservoir near Hadley. The forecast, 60% chance of rain showers tonight for NYC, 90% chance of showers for interior today. NWS has not issued any hazardous weather outlook as of this report.
Ohio is advised to brace for a cold front moving in for the weekend with risk of freezing temps that can nip sensitive vegetation, bring those tender plants in overnight. Two monitors in the central Scioto River basin are still recording 99th percentile flows Friday, the Olentangy River is sending high flow values from near Delaware and Worthington in the Upper Scioto River basin. Mahoning River is signalling 99th percentile at Pricetown and the Shenango River is high at Pymatuning Dam in PA. No active floodings recorded.
Georgia begins Day 44 of continuous flooding, dropping two more active flood sites overnight. As of around 9 pm last night Suwannee River settled back into her channel near Fargo, leaving four active floods monitored on the Gulf of Mexico side of the Georgia divide. Suwannee tributary Wihlachoochee River is still recorded over flood stage near Quitman and Pinetta, FL. Another Suwannee tributary flow, Alapaha River is running similar levels to what we reported yesterday, not much change in the last 24 hours at Statenville or near Jennings, FL. In the Atlantic basin, Savannah River is no longer flooding near Cylo, this overflow ended around 930 pm last night. Savannah River has flooded near Cylo twice this spring season, initially overflowing March 10 until April 4, and again after a week off, flooding April 11 to April 18. Elsewhere in the Atlantic basin, Altamaha River is presently recorded less than an inch over near Baxley, this flooding will most likely end this morning. Satilla River watershed is down to two stations recording flooding Friday. Tributary Little Satilla runs an inch over near Offerman, looking to be back in the channel today with no further runoff from 659 square miles upstream. Downstream at Atkinson, the Satilla River still runs three and a half feet over, down half a foot overnight. Savannah River collects surface runoff from nearly 10 thousand square miles by the time it reaches Cylo. The USGS provisional flow data for this station shows Savannah is still swollen out of the normal channel by eight to nine inches at 15300 cubic feet per second.
Louisiana flooding is down to twelve sites recording flood flows Friday as Region 4 Calcasieu River flooding retired around 830 pm last night in the lower channel near Kinder. Region 1 Bayou Dorcheat continues to run more than a foot over the channel near Springhill, seven inches over downstream at Minden. Bayou Bodcau has not changed in the last twenty four hours, still close to ten feet out of the basin near Shreveport. To the east in watershed Region 2, Little River is down another foot overnight, running a foot and two inches over flood stage near Rochelle. In Region 4, Sabine River flow is down overnight, running four inches over at the top end near Logansport, two feet over at downstream Burkeville. The water level is higher today downstream near Bon Wier and Ruliff as the bulk flood water moves from the upper channel to the outlet in the Gulf. Calcasieu River is down two feet in the upper channel near Glenmora overnight, currently running a foot over, still half a foot out of the channel downstream near Oberlin. In Region 7, the east state border Pearl River continues to flood more than two feet over near Bogalusa, a foot and a half over flood stage downstream at Town of Pearl River.
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.
Drinking Water Matters
Chautauqua County has issued BWAs for Pomfret and Fredonia effective April 17 following planned maintenance of the water treatment tanks and facilities.
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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