Headline:
Flood Watch issued August 20 at 2:38AM EDT until August 21 at 2:00AM EDT by NWS Upton NY
Event:
Flood Watch
Urgency:
Future
Effective:
August 19, 2026 - 11:38pm
Expires:
August 20, 2026 - 3:00pm
Description:
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of northeast New Jersey, including the following
areas, Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern
Union, Hudson, Western Bergen, Western Essex, Western Passaic and
Western Union and southeast New York, including the following
areas, Bronx, Kings (Brooklyn), New York (Manhattan), Northern
Nassau, Northern Queens, Northwest Suffolk, Richmond (Staten
Island), Southern Nassau, Southern Queens, Southern Westchester and
Southwest Suffolk.
* WHEN...From 2 PM EDT this afternoon through late tonight.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- A period of heavy rainfall is possible as showers and potential
thunderstorms move through the area. Peak hourly rainfall rates
could reach around 2 inches. Average rainfall amounts are
expected to be between 1.5 and 2.5 inches with locally higher
amounts possible.
- http://www.weather.gov/safety/flood
Instruction:
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
Area Description:
Western Passaic; Eastern Passaic; Hudson; Western Bergen; Eastern Bergen; Western Essex; Eastern Essex; Western Union; Eastern Union; Southern Westchester; New York (Manhattan); Bronx; Richmond (Staten Is.); Kings (Brooklyn); Northwest Suffolk; Southwest Suffolk; Northern Queens; Northern Nassau; Southern Queens; Southern Nassau
Forcast Office:
NWS Upton NY
Sender:
w-nws.webmaster@noaa.gov