Weak high pressure and a marginally cold air mass was locked into the northeast with blocking to the north across Eastern Canada, while low pressure over the Midwest moved east and redeveloped off the Northern Mid Atlantic coast. This led to the first widespread accumulating snowfall across the CWA.
Every event with a place to put it; 9 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OKX wrote it up.
Weak high pressure and a marginally cold air mass was locked into the northeast with blocking to the north across Eastern Canada, while low pressure over the Midwest moved east and redeveloped off the Northern Mid Atlantic coast. This led to the first widespread accumulating snowfall across the CWA.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New York, NY wrote its last area forecast discussion before the first event at Feb 27, 4:08 PM EST, 3 hours 52 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service New York NY 410 PM EST Mon Feb 27 2023 NJZ002-004-103-NYZ067>070-282115- Western Passaic-Eastern Passaic-Western Bergen-Orange-Putnam- Rockland-Northern Westchester- 410 PM EST Mon Feb 27 2023 ...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST TUESDAY... This Hazardous Weather Outlook is for northeast New Jersey and southeast New York. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation according to Standard Operating Procedures is requested and appreciated. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. NJZ006-104>108-NYZ071>075-078>081-176>178-282115- Hudson-Eastern Bergen-Western Essex-Eastern Essex-Western Union- Eastern Union-Southern Westchester-New York (Manhattan)-Bronx- Richmond (Staten Island)-Kings (Brooklyn)-Northwest Suffolk- Northeast Suffolk-Southwest Suffolk-Southeast Suffolk- Northern Queens-Northern Nassau-Southern Queens- 410 PM EST Mon Feb 27 2023 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST TUESDAY... This Hazardous Weather Outlook is for northeast New Jersey and southeast New York. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation according to Standard Operating Procedures is requested and appreciated. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. CTZ009>012-282115- Southern Fairfield-Southern New Haven-Southern Middlesex- Southern New London- 410 PM EST Mon Feb 27 2023 ...WINTER STORM WARNING IN EFFECT UNTIL 10 AM EST TUESDAY... This Hazardous Weather Outlook is for southern Connecticut. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation according to Standard Operating Procedures is requested and appreciated. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. CTZ005>008-282115- Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London- 410 PM EST Mon Feb 27 2023 ...WINTER STORM WARNING IN EFFECT UNTIL 3 PM EST TUESDAY... This Hazardous Weather Outlook is for southern Connecticut. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation according to Standard Operating Procedures is requested and appreciated. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. NYZ179-282115- Southern Nassau- 410 PM EST Mon Feb 27 2023 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST TUESDAY... ...COASTAL FLOOD ADVISORY IN EFFECT FROM 1 AM TO 4 AM EST TUESDAY... This Hazardous Weather Outlook is for southeast New York. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. Coastal Flood Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation according to Standard Operating Procedures is requested and appreciated. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. ANZ350-353-355-282115- Moriches Inlet NY to Montauk Point NY out 20 nm- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 410 PM EST Mon Feb 27 2023 ...GALE WARNING IN EFFECT UNTIL 9 AM EST TUESDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. ANZ331-332-335-338-340-345-282115- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- Long Island Sound East of the Mouth of the Connecticut River- Long Island Sound West of New Haven CT/Port Jefferson NY- New York Harbor-Peconic and Gardiners Bays- South Shore Bays from Jones Inlet through Shinnecock Bay- 410 PM EST Mon Feb 27 2023 This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time that would meet NWS warning criteria. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria.
The national radar mosaic for the moment the first event began.
7 winter weather, 2 heavy snow. Local standard time, as filed.
Heavy snow fell across the western portion of the county and carried into the morning commute. The public reported 6.0 inches in Bloomingdale at a time in which compaction likely had not yet set in. Cocorahs reported 5.5 inches almost 2 hours later in Wayne.
Heavy snow fell into the morning commute across Western portions of Bergen County. Cocorahs reported 6.0 inches in Oakland, and the public reported 6.0 inches in Allendale at times after some compaction would have started as temperatures began to climb above freezing within an hour or two after sunrise and the steadier snow had ended. A trained spotter reported 5.1 inches in Ramsey in the late morning which likely was measured after compaction occurred.
Wet snow fell across the eastern half of the county. Snowfall amounts ranged generally from 3 to 5 inches across this portion of the county. A Cocorahs observer reported 4.8 inches from Little Falls and 4.6 inches from Hawthorne, while a public report of 3.6 inches was reported from Totowa after likely compaction.
A general 2 to 5 inches fell across the eastern portion of the county. Cocorahs reports of 5.0 inches at 1.8 ESE Montvale, 3.6 inches in Tenafly and 2.7 inches in Palisades Park were observed. A trained spotter reported 4.8 inches in River Vale and 3.8 inches at 1 NNE Begenfield.
A general 3 to 5 inches fell across the zone. A Cocorahs report of 5.0 inches was submitted for Montclair and 4.8 inches in Verona. A public report of 4.1 inches was submitted for 1 W Cedar Grove.
A general 2 to 4 inches fell across the zone. Newark Airport reported 1.7 inches of snow, with the western edge of the zone receiving 3.7 inches via a trained spotter in Bloomfield.
A general 1 to 3 inches of snow fell across the zone. A trained spotter reported 2.4 inches in Plainfield. A Cocorahs report from Clark which is right along the eastern border of the zone reported 3.0 inches of snow and 1.0 inches of snow at 0.8 WSW Westfield, and 1.5 inches at New Providence.
A light snowfall around 1 inch fell across the zone. A cocorahs report of 1.0 inches was reported at 0.6 NNW Cranford.
A general 1 to 3 inches fell across the zone. A COOP observer reported 2.5 inches in Harrison, a Cocorahs observer reported 2.0 inches in Kearny, and a trained spotter reported 1.2 inches in Hoboken.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Jersey in 2023Every state in 2023This day in weather historyWarnings in New Jersey, February 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1074865, 1074870, 1074873, 1074877, 1075125, 1075126, 1075127, 1075128, 1075129.