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6/11/2024

WT Staff

Streamflow Situation
From the network of USGS streamflow monitors in Ohio
Lake Erie basin off the drought map

June 11, 2024 1136 am EDT

Streamflows run largely normal statewide Tuesday with increasing number of below normal events popping up this morning on both sides of the state height-of-land-divide and through all major drainage basins leading to the Mississippi River.

The highest streamflow is 77th percentile found in the upper Mad River channel of the Great Miami basin in west Ohio. The lowest flows are 3rd percentile on the Cuyahoga River near Newburgh Heights outlet on Lake Erie, and 4th percentile Salt Creek near Chandlersville in the Muskingum River basin. Two below normal flows appear in Great Miami basin compared to one ealier this morning, five below normal in Scioto basin, and five below normal in the Ohio River minor tributaries. As of this report, there are no active floodings recorded, no extreme high or extreme low flows.

Lake Erie basin is entirely clear of drought map Tuesday leaving the same three Ohio-Mississippi River basin watersheds on the drought map at below normal rating. Wills Creek watershed in the Muskingum River basin remains below normal along with two Ohio River minor tributaries, adjacent Shade River and Raccoon-Symmes River watersheds.

Active flooding:
0 streamflow gauges report above flood stage

Flows above 99th percentile
0 streamflow gauges record above the 99th percentile or action stage:


Drought and low flow from the USGS WaterWatch seven-day average streamflow compared with historic streamflow

0 USGS gauges recording low flow, 1st percentile or lower

Below normal rated area includes:
  • Muskingum basin - Wills Creek watershed - Guernsey County
  • Ohio River minor tributary - Shade River watershed - Meigs County, south-central Athens, northeast Gallia and south Washington Counties
  • Middle Ohio River minor tributary Raccoon -Symmes watershed


WTOH.us tracks current streamflow conditions with an eye to the impacts on drinking water supply and quality in 32 watersheds of the state's 5 drainage basins. Check the watershed layer on the map to see the high and low streamflows that may be impacting drinking water water in Ohio today.


As sourced from USGS Waterwatch Current Streamflow


FLOOD SAFETY

What is the difference between a Flood Watch and a Flood Warning issued by the National Weather Service?
  • Flash Flood Warning: Take Action! A Flash Flood Warning is issued when a flash flood is imminent or occurring. If you are in a flood prone area move immediately to high ground. A flash flood is a sudden violent flood that can take from minutes to hours to develop. It is even possible to experience a flash flood in areas not immediately receiving rain.

  • Flood Warning: Take Action! 

    A Flood Warning is issued when the hazardous weather event is imminent or already happening. A Flood Warning is issued when flooding is imminent or occurring.

  • Flood Advisory: Be Aware:

    A Flood Advisory is issued when a specific weather event that is forecast to occur may become a nuisance.

    A Flood Advisory is issued when flooding is not expected to be bad enough to issue a warning. However, it may cause significant inconvenience, and if caution is not exercised, it could lead to situations that may threaten life and/or property.

  • Flood Watch: Be Prepared:

    • A Flood Watch is issued when conditions are favorable for a specific hazardous weather event to occur.
    • Flood Watch is issued when conditions are favorable for flooding. It does not mean flooding will occur, but it is possible.

    Be prepared, stay safe through flood events

    Did you know
    • 6 inches deep moving water can knock an adult down
    • 12 inches deep flowing water can carry a car away!
    • (From ready.gov)


      Stay safe during flood events, watch for flood alerts in your area, here in BLACK.

      Avoid driving into flooded areas, and take caution trying to drive out of a flood zone.

      Avoid using bridges over high flowing rivers.

      If possible, move to higher ground, get uphill, or move to a higher floor in your building or home,

      leaving yourself an exit to the roof if necessary. Do not become trapped in an attic!

       

      Keep dry food, bottled water, flashlight and extra batteries, cell phone charger packed in go bags for all of your household and pets.

      Have flotation devices accessible for every member of your household in case you need to evacuate on foot.

       

      If you must drive to get out of a flood zone,

      have a high-quality window breaking/seatbelt cutting device in your vehicle, secured to your rearview mirror for fast retrieval.

      You may not be able to reach your car’s glove box in an emergency situation.

      The contents of seat and door storage compartments and center console may become displaced in an emergency,

      causing you to lose track of items that are not secured.

       

      Even if your vehicle has rolled or tipped over, as long as you are still belted in, you should be able to reach the rear-view mirror to retrieve your emergency tool.

      Keep your seatbelt on until the vehicle has made impact with the water body.  It will often float on the surface for a short time.

      There is time to get out through an open side window.  Act calmly, deliberately and quickly, without hesitation.

       

      Use your tool to cut your seatbelt if the buckle will not release in the normal way.

      Use your window breaking device toward a corner of your side window to break the safety glass. 

      Attempting to break the window at the center may not work.

      Windshields and rear windows are reinforced and will not break as easily as the side windows.

      If your vehicle is in any danger of becoming submerged, you need to get out before it goes underwater.

      Submerged vehicles may roll over or invert underwater, disorienting you and others inside. 

       

      Get familiar with your local streams and rivers, know your normal flow levels and check the USGS Waterwatch Current Streamflow for the real time flow volume and depth.

      Click here for the monitoring sites upstream and downstream nearest your home.








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