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FLOODS and FLOWS


November 29, 2023

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

3 USGS gages are recording low flows:
  • Lake Erie basin Maumee River is flowing low at Waterville - running ft deep at cfs - drainage area 6330 square miles
  • Lake Erie basin Auglaize River is flowing low near Defiance - running 4.8 ft deep at 5.18 cfs - drainage area 2318 square miles
  • Great Miami River is flowing low at Troy - running 1.73 ft deep at 49.9 cfs - drainage area is 926 square miles
Severe hydrologic drought - Lake Erie basin
  • Lake Erie basin Auglaize River watershed south Defiance County, Paulding, Van Wert and Putnam and Allen Counties, central Auglaize and northwest Hardin Counties
Moderate drought
  • Lake Erie basin Lower Maumee River watershed Lucas, Wood Counties

Below normal rating:
  • Lake Erie basin St Joseph, Tiffin and Lower Maumee River watersheds including Defiance, Williams, west Fulton, northwest Wood and Henry Counties
  • Great Miami River Upper and Lower Miami River watershed - from Darke, Shelby and west Logan County to the Ohio River in Hamilton County

Active flooding:
0 streamflow gages reporting above flood stage

Flows above 99th percentile at risk of flooding:
0 streamflow gages at action stage


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.

      Find the monitoring sites upstream and downstream nearest your home and sign up for high flow alerts.

      https://waterwatch.usgs.gov/

       

       

       

       
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