WTNY-WATERTODAY NEW YORK

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November 21, 2024

WT INTERNATIONAL

6/7/2024

WT Staff

Streamflow Situation
From the network of river flow monitors of USGS NY Water Science Center
Levels up in all four drainage basins overnight
June 7, 2024 1003 am EDT

Thunderstorms in the west yesterday have boosted water levels through the four drainage basins of New York overnight, relieving two thirds or more of the total surface area from below normal back to normal and above normal seasonal levels. Three extreme low flows are picked up by the sensors including one in the lower Oswego River watershed, one in St. Lawrence River watershed and one south-flowing river on Long Island. As of this report, the highest flow is 95th percentile, no flooding occurring.

Lake Ontario minor tributaries west section remains at moderate hydrologic drought rating Friday, joined by Oswego River - Finger Lakes watershed at moderate drought. Allegheny River watershed has cleared its west area from the drought map, Chautauqua County is off the drought map. Allegheny watershed area through Cattaraugus County and adjacent Genesee River are below normal Friday. Susquehanna River watershed sticks at below normal. In the northeast, St. Lawrence River watershed, Upper Hudson and Lake Champlain watersheds are below normal while the Mohawk River watersheds is clear of a drought rating today.

Flood stage breached
0 USGS streamflow gauges reporting above flood stage

Flows above 99th percentile
0 stations at extreme high flow

Valley Stream is no longer high at Valley Stream
Bellmore Creek is no longer flowing high near Bellemore

Drought Map

Low flows - 1st percentile

Raquette River is flowing low at South Colton
Seneca River is flowing low near Baldwinsville
Swan River is flowing low at East Patchogue

Moderate drought

Oswego River - Finger Lakes watershed - Cayuga, Onondaga, Yates, Schuyler and Tompkins Counties
Lake Ontario minor tributaries west - west Monroe, Orleans, Niagara Counties

Below Normal

Genesee River watershed
Susquehanna River watershed
Allegheny River watershed - Cattaraugus County
Lake Champlain watershed
Upper Hudson River watershed - Hamilton, Essex, Warren, Saratoga, Washington, north Rensselaer Counties
St Lawrence River watershed = Franklin and St. Lawrence 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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