6/13/2024
WT Staff
 HAPPENING NOW
Thursday, June 13, 2024
High concentration HAB in Sandusky Bay
June 13, 2024 927 am EDT
HABS Tracker satellite monitoring by the National Centers for Coastal Ocean Science (NCCOS)
Sandusky Bay popped up with a large high concentration HAB mass along the south shore from Bayview to Willow Point Wildlife Area Tuesday. The satellite image supplied by NCCOS was captured on June 11 at a wind speed 3.9 mph, low enough to give an accurate interpretation of the extent of any HABs spotted. This HAB matched the concentration color scale for a count of 1.5 million cells per 100 ml sample, a very high concentration for Sandusky Bay at this time of year. More to follow as we look at the total microcystins level tested at the raw water intake for Sandusky.
Streamflow Situation
from the USGS network of streamflow gauges in Ohio
Streamflows are heading downward again today, much of the Ohio-Mississippi drainage basin heading below seasonal normal flow volumes in the creeks and rivers watering Ohio. As of this report, there are no active floodings or 99th percentile high flows. A low flow rating has popped up on Cuyahoga River overnight, the station recording flow volume nearest the Cuyahoga outlet in Lake Erie runs at 3rd percentile as of this report. Flow level has been monitored here for 30 years, the water level recorded here on June 13 each year over the thirty years would have produced higher water levels 97% of the time, only 2% of all June 13 recorded flows in the last three decades would be lower. Wills Creek watershed is back on the drought map after a day off. The Ohio River minor tributary watershed Raccoon-Symmes remains below normal from Jackson to east Lawrence Counties.
WT USA Flood Tracker provisional data from the network of USGS streamflow monitors
Thirty-five flood events are recorded on the national USGS network Thursday, down from forty-three Wednesday. Two more flood events have ended in Louisiana overnight with another one looking to be out of flood stage very soon. WT USA now tracking five reference floods through the coverage area New York, Ohio, Georgia and Louisiana. At the writing of this report, all are occurring in Louisiana.
Louisiana: Two more flooding incidents monitored by the Louisiana network of the USGS have ceased overnight. Region 7 Pearl River is back in the channel as of last evening around 6 pm. Region 4 border Sabine River ceased the overflow near Burkeville around 6 am this morning. Five stations still flooding in Louisiana, Region 1 Bayou Bodcau Lake maintains a level four feet over the basin near Shreveport. Region 4 border Sabine River is still out of the channel near Logansport, near Bon Wier and near Ruliff. East Region 4 Calcasieu River is recorded at ten inches over flood stage near Glenmora. Twelvemile Bayou is no longer flowing high near Dixie. For more information on the flood trend in Louisiana, see black tags indicating flood flow volume and gauge height updated daily here.
Hazardous Weather Outlook issued 332 am June 13 by NWS Cleveland forecast center
There is growing confidence in a heat wave setting up Sunday through early next week that may result in heat-related impacts across the area, especially in traditionally warmer locations like urban centers.
Impacting Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Huron-Medina-Summit-Portage-Trumbull-Wyandot-Crawford-Richland-Ashland-Wayne-Stark-Mahoning-Marion-Morrow-Holmes-Knox-Ashtabula Lakeshore-Northern Erie-
Southern Erie Counties.
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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