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6/2/2024

WT Staff

Streamflow Situation
 From the network of river flow monitors of USGS NY Water Science Center
Below to much below normal flows persist upstate west, north


June 2, 2024 1201 pm EDT


An arc of below normal to much below normal and extreme low flows persist through upstate NY Sunday with normal flows confined to the Lower Hudson and south-facing Delaware and Ramapo River watersheds. The highest flow recorded is a single instance of 91st percentile on the Mohawk River below Delta Dam near Rome. A couple of above normal flows occur in Delaware River and Long Island watersheds. The same four extreme low flows show up Sunday including Tonawanda Creek running a 1st percentile flow at Attica, Canisteo River running 1st percentile at Arkport, Allen Creek running the extreme low flow near Rochester in the Genesee River watershed. Swan River has been signalling to the extreme low end of the spectrum at East Patchogue and continues at the extreme low on Long Island.

Niagara River - Lake Erie watershed is off the drought map Sunday, the top end of Chautauqua County no longer rated below normal. Lake Ontario minor tributaries west section, including parts of Monroe, Orleans and Niagara Counties remains below normal along with interior Oswego River - Finger Lakes watershed. St. Lawrence River watershed has stepped down from moderate drought to below normal rating, along with adjacent Upper Hudson River also below normal.

Flood stage breached
0 USGS streamflow gauges reporting above flood stage

Flows above 99th percentile
0 stations reporting extreme high flow

Drought Map from the USGS WaterWatch seven-day average streamflow compared with historic streamflow

Low flows - 1st percentile from the USGS WaterWatch network in New York
4 USGS streamflow gages rated extreme low
  • Allen Creek is flowing low at Rochester
  • Swan River is flowing low at East Patchogue
  • Tonawanda Creek is flowing 1st percentile at Attica
  • Canisteo River is flowing low at Arkport

Below Normal rated area
  • St Lawrence River watershed
  • Oswego River - Finger Lakes watershed - Cayuga, Onondaga, Yates, Schuyler and Tompkins Counties
  • Lake Ontario minor tributaries west - west Monroe, Orleans, Niagara Counties
  • Upper Hudson River watershed - southwest Essex, central Hamilton and central Warren Counties
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.

    A 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

March 13, 2023

 

Did you know,

6 inches of moving water can knock an adult down

And 12 inches of 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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