Lake-Effect Snow in New York, April 7 to 8, 2009

Name: Lake-Effect Snow in New York, April 7 to 8, 2009
Start: 2009-04-07T17:00
End: 2009-04-08T10:00
Location: New York

April 7 to 8, 2009 · NWS BUF · 1 event in 1 county or zone

Low pressure east of Lake Ontario moved to the New England Coast. Colder air behind the low resulted in a general snowfall of 4 to 6 inches across the Eastern Lake Ontario Region.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $10,000
Crop damage: None recorded
Events: 1

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.

What happened

The episode as NWS BUF wrote it up.

Low pressure east of Lake Ontario moved to the New England Coast. Colder air behind the low resulted in a general snowfall of 4 to 6 inches across the Eastern Lake Ontario Region. A narrow band of lake enhanced snow set up over Oswego County producing a swath of nine inch snowfall reports.

What forecasters said that day

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 Buffalo, NY wrote its last area forecast discussion before the first event at Apr 6, 6:36 PM EST, 22 hours 24 minutes earlier.

Area forecast discussion, Apr 6, 6:36 PM EST, 22 hours 24 minutes before

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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 lake-effect snow. Local standard time, as filed.

Lake-Effect Snow, Oswego

When: April 7, 5:00 PM EST to April 8, 10:00 AM EST
Where: Oswego forecast zone
Property damage: $10,000
Reported by: CoCoRaHS
Coordinates: 43.464, -76.209 (the zone’s center; the record gives no point)

What these are

Lake-Effect Snow: Heavy snow in bands downwind of a large lake as cold air crosses warmer water.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in New York in 2009 Every state in 2009 This day in weather history Warnings in New York, April 2009

Sources

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: 167586.