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The Greater Cornwall communities' official source for real-time localized weather conditions, radar, live feeds, forecasts, alerts and events. Learn more about the Cornwall Office of Emergency Management Environmental Intelligence Programs and Stay Informed!
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Greater Cornwall WX Alerts
Stay in the know with Greater Cornwall NY Weather Alerts! Active will be displayed here. Ready to receive alerts? Sign up now!
Last Update: Thu Aug 27 2026 10:28:14 EDT
THERE ARE 2 ACTIVE ALERTS!
wx.cornwallny.gov

On FB @cornwalloem
warning A STRONG THUNDERSTORM WILL IMPACT PASSAIC...NORTHWESTERN BERGEN... SOUTHEASTERN ORANGE AND ROCKLAND COUNTIES THROUGH 1030 AM EDT
At 938 AM EDT, Doppler radar was tracking a strong thunderstorm near Green Pond, or 7 miles southwest of West Milford, moving northeast at 25 mph. HAZARD...Wind gusts up to 40 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to outdoor objects is possible. Locations impacted include... West Milford, Monsey, Ramsey, Ringwood, Pompton Lakes, Suffern, Monroe, Warwick, Sloatsburg, Bloomingdale, Greenwood Lake, Upper Greenwood Lake, Spring Valley, Oakland, and Wanaque.
warning FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of southern Connecticut, including the following areas, Northern Fairfield and Southern Fairfield, 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, Northern Westchester, Orange, Putnam, Richmond (Staten Island), Rockland, Southern Nassau, Southern Queens and Southern Westchester. * WHEN...From Thursday afternoon through Thursday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Total rainfall amounts are around 1 to 1.5 inches in the watch area, but some areas could receive up to 3 inches with peak rainfall rates between 1.5 to 2.5 in/hr. - http://www.weather.gov/safety/flood
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WX@Cornwall Social WX Wall
Official WX Feeds
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Greater Cornwall Latest Radar
Latest Radar Loop : NWS OKX - New York City, NY
Latest Radar Loop : NWS BGM - Binghamton, NY
Radar Map for the Greater Cornwall Area
Radar Timestamp: loading
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Greater Cornwall Air Quality Awareness
Current Air Quality - Cornwall, NY
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Greater Cornwall Rainfall and Flood Awareness
Rainfall and Flood Awareness for the Greater Cornwall Area
Flood Awareness: reviewing official NWS alert information
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Greater Cornwall Live Weather Feeds
Camera imagery courtesy of
NYS Mesonet
• Site: Otisville
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