Alert archive / New York / Lake Effect Snow Warnings in 2025

Lake Effect Snow Warning 6, NWS Buffalo, NY

February 9, 2025Cayuga County, Oswego County, New York

NWS Buffalo, NY issued this lake effect snow warning at Feb 9, 2025, 3:29 AM EST for Cayuga County, Oswego County, New York. It took effect at Feb 9, 2025, 4:00 PM EST. It was in force for 36 hr. 17 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 9, 2025, 3:29 AM EST (08:29 UTC)
In effect from
Feb 9, 2025, 4:00 PM EST
Expired
Feb 11, 2025, 3:32 AM EST
In force
36 hr
Issued by
NWS Buffalo, NY

Counties Cayuga County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 81 km from the middle of the area, began a volume at 08:32 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Feb 10, 6:00 AM ESTSNOW 9.22 Sse Palermo, NYCocorahs station NY-OS-16 Phoenix 7.0 NNE. 24-hour snowfall
Feb 10, 7:00 AM ESTSNOW 10.82 Sw Mexico, NYCO-OP Observer station MXON6 Mexico 2SW 24-hour snowfall.
Feb 10, 7:30 AM ESTSNOW 8.64 Nw Constantia, NYCocorahs station NY-OS-45 West Monroe 1.6 NNE 24-hour snowfall total.
Feb 10, 8:00 AM ESTSNOW 9.6Minetto, NYCocorahs station NY-OS-15 Minetto 0.1 SE. 24-hour snowfall
Feb 10, 9:00 AM ESTSNOW 5.82 Wsw Oswego, NYSnowfall since 530 pm Sunday.
Feb 10, 10:21 AM ESTSNOW 84 E Oswego, NYstorm total snowfall in Scriba.
Feb 10, 10:45 AM ESTSNOW 202 Nw Parish, NYSnowfall over the last 24 hours in Colosse.
Feb 10, 10:45 AM ESTSNOW 22Parish, NYSnowfall over the last 24 hours.
Feb 10, 11:24 AM ESTSNOW 7.12 Sse Palermo, NYSnow since 7 am.
Feb 10, 11:55 AM ESTSNOW 4.2Oswego, NYSnowfall since yesterday afternoon.
Feb 10, 12:00 PM ESTSNOW 7.5Fulton, NY7 to 8 inches of new snow since 5 am.
Feb 10, 2:30 PM ESTSNOW 22.1Minetto, NY
Feb 10, 4:00 PM ESTSNOW 183 Wnw Fulton, NYGranby.
Feb 10, 4:45 PM ESTSNOW 27.9Palermo, NY
Feb 10, 5:00 PM ESTSNOW 10.81 Ne Fulton, NY
Feb 10, 7:00 PM ESTSNOW 10.12 Wsw Oswego, NY
Feb 10, 10:00 PM ESTSNOW 133 W Cleveland, NY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 8.5 hours before the alert went out and 191 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 2025-02-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2025-02-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 764 square meters per square second.1939587897117136156175194214233253272292311Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1212 m above ground
0-6 km bulk shear
190 kt
0-1 km storm-relative helicity
764 m²/s²
0-3 km storm-relative helicity
1041 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

551 
WWUS41 KBUF 090829
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
329 AM EST Sun Feb 9 2025

NYZ005-006-091630-
/O.NEW.KBUF.LE.W.0006.250209T2100Z-250211T0900Z/
/O.CON.KBUF.WW.Y.0013.000000T0000Z-250209T1800Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
329 AM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS 
AFTERNOON...
...LAKE EFFECT SNOW WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 
AM EST TUESDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow 
  accumulations 1 to 2 inches. For the Lake Effect Snow Warning, 
  heavy lake effect snow expected. Total snow accumulations 8 to 16 
  inches in the most persistent lake snows.

* WHERE...Northern Cayuga and Oswego Counties. The heaviest lake 
  effect snow is expected across southern Oswego and far northern 
  Cayuga counties tonight through Monday.

* WHEN...For the Winter Weather Advisory, until 1 PM EST this 
  afternoon. For the Lake Effect Snow Warning, from 4 PM this 
  afternoon to 4 AM EST Tuesday.

* IMPACTS...Roads will remain snow covered and slippery this 
  morning. Travel will be very difficult with deep snow cover on 
  roads and very poor visibility tonight through Monday in localized 
  bands.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ004-091630-
/O.NEW.KBUF.WW.Y.0014.250209T2100Z-250211T0000Z/
/O.CON.KBUF.WW.Y.0013.000000T0000Z-250209T1800Z/
Wayne-
Including the cities of Newark
329 AM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS 
AFTERNOON...
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 7 
PM EST MONDAY...

* WHAT...For the first Winter Weather Advisory, snow. Additional 
  snow accumulations 1 to 2 inches. For the second Winter Weather 
  Advisory, lake effect snow expected. Total snow accumulations 4 to 
  8 inches in the most persistent lake snows.

* WHERE...Wayne County. The heaviest lake effect snow tonight 
  through Monday is expected to be over the far northeast portion of 
  the county.

* WHEN...For the first Winter Weather Advisory, until 1 PM EST this 
  afternoon. For the second Winter Weather Advisory, from 4 PM this 
  afternoon to 7 PM EST Monday.

* IMPACTS...Travel will be very difficult. The hazardous conditions 
  could impact the Monday morning and evening commutes. Roads, and 
  especially bridges and overpasses, will likely become slick and 
  hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.


&&

$$

NYZ001>003-010>013-085-091500-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-250209T1500Z/
Niagara-Orleans-Monroe-Northern Erie-Genesee-Wyoming-Livingston-
Southern Erie-
Including the cities of Niagara Falls, Medina, Rochester,
Buffalo, Batavia, Warsaw, Geneseo, Orchard Park, and Springville
329 AM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS 
MORNING...

* WHAT...Snow. Additional snow accumulations around an inch.

* WHERE...Erie, Niagara, Orleans, Monroe, Genesee, Wyoming, and 
  Livingston Counties.

* WHEN...Until 10 AM EST this morning.

* IMPACTS...Roads will continue to be snow covered and slippery.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited 
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ007-008-014-091630-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-250209T1800Z/
Jefferson-Lewis-Ontario-
Including the cities of Watertown, Lowville, and Canandaigua
329 AM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS 
AFTERNOON...

* WHAT...Snow. Additional snow accumulations 1 to 3 inches.

* WHERE...Jefferson, Lewis, and Ontario Counties.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Roads will continue to be snow covered and slippery.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited 
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ019>021-091500-
/O.CON.KBUF.WW.Y.0013.000000T0000Z-250209T1500Z/
Chautauqua-Cattaraugus-Allegany-
Including the cities of Jamestown, Olean, and Wellsville
329 AM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS 
MORNING...

* WHAT...Snow. Additional snow accumulations 1 to 2 inches.

* WHERE...The western Southern Tier. The greatest additional 
  accumulations will be across the Chautauqua Ridge.

* WHEN...Until 10 AM EST this morning.

* IMPACTS...Roads will continue to be snow covered and slippery.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited 
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

Hitchcock
9 follow-up statements
948 
WWUS41 KBUF 091131
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
631 AM EST Sun Feb 9 2025

NYZ005-006-092100-
/O.CAN.KBUF.WW.Y.0013.000000T0000Z-250209T1800Z/
/O.CON.KBUF.LE.W.0006.250209T2100Z-250211T0900Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
631 AM EST Sun Feb 9 2025

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 4 PM THIS 
AFTERNOON TO 4 AM EST TUESDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Heavy lake effect snow expected. Total snow accumulations 8 
  to 16 inches in the most persistent lake snows.

* WHERE...Northern Cayuga and Oswego Counties. The heaviest lake 
  effect snow is expected across southern Oswego and far northern 
  Cayuga counties.

* WHEN...From 4 PM this afternoon to 4 AM EST Tuesday. The heaviest 
  snow and greatest impact to travel is expected to be late this 
  evening through Monday.

* IMPACTS...Travel will be very difficult with deep snow cover on 
  roads and very poor visibility tonight through Monday in localized 
  bands.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ004-092100-
/O.CAN.KBUF.WW.Y.0013.000000T0000Z-250209T1800Z/
/O.CON.KBUF.WW.Y.0014.250209T2100Z-250211T0000Z/
Wayne-
Including the cities of Newark
631 AM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS 
AFTERNOON TO 7 PM EST MONDAY...
...THE FIRST WINTER WEATHER ADVISORY FOR THIS MORNING IS CANCELLED...

* WHAT...Lake effect snow expected. Total snow accumulations 4 to 8 
  inches in the most persistent lake snows.

* WHERE...Wayne County. The heaviest lake effect snow is expected to 
  be over the far northeast portion of the county.

* WHEN...From 4 PM this afternoon to 7 PM EST Monday.

* IMPACTS...Travel will be difficult with snow covered roads and 
  poor visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.


&&

$$

NYZ001>003-010>013-019>021-085-091245-
/O.CAN.KBUF.WW.Y.0013.000000T0000Z-250209T1500Z/
Niagara-Orleans-Monroe-Northern Erie-Genesee-Wyoming-Livingston-
Chautauqua-Cattaraugus-Allegany-Southern Erie-
Including the cities of Niagara Falls, Medina, Rochester,
Buffalo, Batavia, Warsaw, Geneseo, Jamestown, Olean, Wellsville,
Orchard Park, and Springville
631 AM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow will continue to taper off this morning, with any additional 
accumulation an inch or less.

$$

NYZ007-008-014-091245-
/O.CAN.KBUF.WW.Y.0013.000000T0000Z-250209T1800Z/
Jefferson-Lewis-Ontario-
Including the cities of Watertown, Lowville, and Canandaigua
631 AM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow will continue to taper off this morning, with any additional 
accumulation an inch or less.

$$

Hitchcock
883 
WWUS41 KBUF 091433
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
933 AM EST Sun Feb 9 2025

NYZ005-006-100000-
/O.CON.KBUF.LE.W.0006.250209T2100Z-250211T0900Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
933 AM EST Sun Feb 9 2025

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 4 PM THIS 
AFTERNOON TO 4 AM EST TUESDAY...

* WHAT...Heavy lake effect snow expected. Total snow accumulations 8 
  to 16 inches in the most persistent lake snows.

* WHERE...Northern Cayuga and Oswego Counties. The heaviest lake 
  effect snow is expected across southern Oswego and far northern 
  Cayuga counties.

* WHEN...From 4 PM this afternoon to 4 AM EST Tuesday.

* IMPACTS...Travel will be very difficult with deep snow cover on 
  roads and very poor visibility tonight through Monday in localized 
  bands.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be 
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ004-100000-
/O.CON.KBUF.WW.Y.0014.250209T2100Z-250211T0000Z/
Wayne-
Including the cities of Newark
933 AM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS 
AFTERNOON TO 7 PM EST MONDAY...

* WHAT...Lake effect snow expected. Total snow accumulations 4 to 8 
  inches in the most persistent lake snows.

* WHERE...Wayne County. The heaviest lake effect snow is expected to 
  be over the far northeast portion of the county.

* WHEN...From 4 PM this afternoon to 7 PM EST Monday.

* IMPACTS...Travel will be difficult with snow covered roads and 
  poor visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If traveling, 
be prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

Apffel
011 
WWUS41 KBUF 091932
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
232 PM EST Sun Feb 9 2025

NYZ005-006-100500-
/O.CON.KBUF.LE.W.0006.250209T2100Z-250211T0900Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
232 PM EST Sun Feb 9 2025

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST 
TUESDAY...

* WHAT...Heavy lake effect snow expected. Total snow accumulations 8 
  to 16 inches in the most persistent lake snows.

* WHERE...Northern Cayuga and Oswego Counties. 

* WHEN...Until 4 AM EST Tuesday.

* IMPACTS...Travel will be very difficult with deep snow cover on 
  roads and very poor visibility tonight through Monday in localized 
  bands.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ004-100500-
/O.CON.KBUF.WW.Y.0014.250209T2100Z-250211T0000Z/
Wayne-
Including the cities of Newark
232 PM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST MONDAY...

* WHAT...Lake effect snow expected. Total snow accumulations 4 to 8 
  inches in the most persistent lake snows.

* WHERE...Wayne County. The heaviest lake effect snow is expected to 
  be over the far northeast portion of the county.

* WHEN...Until 7 PM EST Monday.

* IMPACTS...Travel will be difficult with snow covered roads and 
  poor visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.


&&

$$

Apffel
997 
WWUS41 KBUF 100331
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
1031 PM EST Sun Feb 9 2025

NYZ005-006-101100-
/O.CON.KBUF.LE.W.0006.000000T0000Z-250211T0900Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
1031 PM EST Sun Feb 9 2025

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST 
TUESDAY...

* WHAT...Heavy lake effect snow. Total snow accumulations 8 to 16 
  inches in the most persistent lake snows.

* WHERE...Northern Cayuga and Oswego Counties.

* WHEN...Until 4 AM EST Tuesday.

* IMPACTS...Travel will be very difficult with deep snow cover on 
  roads and very poor visibility tonight through Monday in localized 
  bands.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ004-101100-
/O.CON.KBUF.WW.Y.0014.000000T0000Z-250211T0000Z/
Wayne-
Including the cities of Newark
1031 PM EST Sun Feb 9 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST MONDAY...

* WHAT...Lake effect snow expected. Total snow accumulations 4 to 8 
  inches in the most persistent lake snows.

* WHERE...Wayne County. The heaviest lake effect snow is expected to 
  be over the far northeast portion of the county.

* WHEN...Until 7 PM EST Monday.

* IMPACTS...Travel will be difficult with snow covered roads and 
  poor visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If traveling, 
be prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

RSH
948 
WWUS41 KBUF 100811
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
311 AM EST Mon Feb 10 2025

NYZ005-006-102000-
/O.CON.KBUF.LE.W.0006.000000T0000Z-250211T0900Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
311 AM EST Mon Feb 10 2025

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST 
TUESDAY...

* WHAT...Heavy lake effect snow. Additional snow accumulations 4 to 
  8 inches in the most persistent lake snows.

* WHERE...Northern Cayuga and Oswego Counties.

* WHEN...Until 4 AM EST Tuesday.

* IMPACTS...Travel will be difficult with snow covered roads and 
  poor visibility at times. The hazardous conditions will impact the 
  Monday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ007-008-102000-
/O.EXB.KBUF.WW.Y.0014.250210T2100Z-250211T0900Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
311 AM EST Mon Feb 10 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 
AM EST TUESDAY...

* WHAT...Lake effect snow expected. Total snow accumulations 4 to 7 
  inches in the most persistent lake snows.

* WHERE...Jefferson and Lewis Counties. The greatest accumulations 
  will be across far southern Jefferson and far western Lewis 
  counties.

* WHEN...From 4 PM this afternoon to 4 AM EST Tuesday.

* IMPACTS...Travel will be difficult with snow covered roads and 
  poor visibility at times. The hazardous conditions will impact the 
  Monday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ004-102000-
/O.CON.KBUF.WW.Y.0014.000000T0000Z-250211T0000Z/
Wayne-
Including the cities of Newark
311 AM EST Mon Feb 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS 
EVENING...

* WHAT...Lake effect snow. Additional snow accumulations 3 to 6 
  inches in the most persistent lake snows.

* WHERE...Wayne County. The greatest accumulations will be across 
  far northeast Wayne County.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Travel will be difficult with snow covered roads and 
  poor visibility at times. The hazardous conditions will impact the 
  Monday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

Hitchcock
601 
WWUS41 KBUF 101921
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
221 PM EST Mon Feb 10 2025

NYZ004-102030-
/O.CAN.KBUF.WW.Y.0014.000000T0000Z-250211T0000Z/
Wayne-
Including the cities of Newark
221 PM EST Mon Feb 10 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

The threat of accumulating lake effect snow has ended, therefore the 
Winter Weather Advisory has been cancelled.

$$

NYZ005-006-110330-
/O.CON.KBUF.LE.W.0006.000000T0000Z-250211T0900Z/
Northern Cayuga-Oswego-
Including the cities of Fair Haven and Oswego
221 PM EST Mon Feb 10 2025

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST 
TUESDAY...

* WHAT...Heavy lake effect snow. Additional snow accumulations 4 to 
  8 inches in the most persistent lake snows across Oswego County. 
  Additional 1 to 2 inches across northern Cayuga County.

* WHERE...Northern Cayuga and Oswego Counties.

* WHEN...Until 4 AM EST Tuesday.

* IMPACTS...Travel will be difficult with snow covered roads and 
  poor visibility at times. The hazardous conditions will impact the 
  Monday evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be 
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ007-008-110330-
/O.CON.KBUF.WW.Y.0014.250210T2100Z-250211T0900Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
221 PM EST Mon Feb 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST 
TUESDAY...

* WHAT...Lake effect snow expected. Total snow accumulations 4 to 8 
  inches in the most persistent lake snows.

* WHERE...Jefferson and Lewis Counties.

* WHEN...Until 4 AM EST Tuesday.

* IMPACTS...Travel will be difficult with snow covered roads and 
  poor visibility at times. The hazardous conditions will impact the 
  Monday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

DRT
270 
WWUS41 KBUF 102056
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
356 PM EST Mon Feb 10 2025

NYZ005-102200-
/O.CAN.KBUF.LE.W.0006.000000T0000Z-250211T0900Z/
Northern Cayuga-
Including the cities of Fair Haven
356 PM EST Mon Feb 10 2025

...LAKE EFFECT SNOW WARNING IS CANCELLED...

$$

NYZ006-110500-
/O.CON.KBUF.LE.W.0006.000000T0000Z-250211T0900Z/
Oswego-
Including the cities of Oswego
356 PM EST Mon Feb 10 2025

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST 
TUESDAY...

* WHAT...Heavy lake effect snow. Additional snow accumulations 4 to 
  8 inches in the most persistent lake snows.

* WHERE...Oswego County.

* WHEN...Until 4 AM EST Tuesday.

* IMPACTS...Travel will be difficult. The hazardous conditions will 
  impact the Monday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be 
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ007-008-110500-
/O.CON.KBUF.WW.Y.0014.250210T2100Z-250211T0900Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
356 PM EST Mon Feb 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST 
TUESDAY...

* WHAT...Lake effect snow expected. Total snow accumulations 4 to 8 
  inches in the most persistent lake snows.

* WHERE...Jefferson and Lewis Counties. The greatest accumulations 
  will be across far southern Jefferson and far western Lewis 
  counties.

* WHEN...Until 4 AM EST Tuesday.

* IMPACTS...Travel will be difficult. The hazardous conditions will 
  impact the Monday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

DRT
815 
WWUS41 KBUF 110217
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
917 PM EST Mon Feb 10 2025

NYZ006-110900-
/O.CON.KBUF.LE.W.0006.000000T0000Z-250211T0900Z/
Oswego-
Including the cities of Oswego
917 PM EST Mon Feb 10 2025

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 4 AM EST 
TUESDAY...

* WHAT...Heavy lake effect snow. Additional snow accumulations 3 to 
  5 inches in the most persistent lake snows.

* WHERE...Oswego County.

* WHEN...Until 4 AM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy snow will fall in relatively narrow bands. If traveling, be 
prepared for rapidly changing road conditions and visibilities.

Submit snow reports through our website or social media.

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

NYZ007-008-110900-
/O.CON.KBUF.WW.Y.0014.000000T0000Z-250211T0900Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
917 PM EST Mon Feb 10 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST 
TUESDAY...

* WHAT...Lake effect snow. Additional snow accumulations 2 to 4 
  inches in the most persistent lake snows.

* WHERE...Jefferson and Lewis Counties.

* WHEN...Until 4 AM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During lake effect snow, the weather can vary from bands of locally 
heavy snow with greatly reduced visibilities to dry conditions just 
a few miles away. Be prepared for rapid changes in weather, 
visibility, and road conditions.

&&

$$

PP
218 
WWUS41 KBUF 110832
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
332 AM EST Tue Feb 11 2025

NYZ006-110945-
/O.CAN.KBUF.LE.W.0006.000000T0000Z-250211T0900Z/
Oswego-
Including the cities of Oswego
332 AM EST Tue Feb 11 2025

...LAKE EFFECT SNOW WARNING IS CANCELLED...

Lake effect snow has diminished and significant accumulations are no 
longer expected, therefore the Lake Effect Snow Warning will be 
allowed to expire.

$$

NYZ007-008-110945-
/O.CAN.KBUF.WW.Y.0014.000000T0000Z-250211T0900Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
332 AM EST Tue Feb 11 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

Lake effect snow has diminished, therefore the Winter Weather 
Advisory will be allowed to expire.

$$

AR

What forecasters said that day

The local office's own words before this lake effect snow warning went out, 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 this lake effect snow warning went out at Feb 9, 12:32 AM EST, 2 hours 57 minutes earlier.

Area forecast discussion, Feb 9, 12:32 AM EST, 2 hours 57 minutes before
Area Forecast Discussion
National Weather Service Buffalo NY
1232 AM EST Sun Feb 9 2025

.SYNOPSIS...
Low pressure will bring widespread light to moderate accumulating
snow to the area through early Sunday morning, with a light wintry
mix possible at times across the Southern Tier. A few lake effect
snow showers will continue Sunday through Monday southeast of the
lakes with localized minor additional accumulations.

&&

.NEAR TERM /THROUGH TODAY/...
Surface low pressure tracking across the eastern Ohio/Tennessee
Valleys into SW Pennsylvania late this evening will give way to
secondary cyclogenesis off the New Jersey/Long Island coast
overnight. Divergent flow under the poleward exit region of a 160kt
250H jet and mid-level frontogenesis on the northern periphery of
the sfc low has been bringing widespread snow to the forecast area,
with a few moderate to locally heavy bands forming at times where
these areas of enhanced convergence/FGEN are present. As the
system's mid-level dry slot works into the region from the Ohio
Valley and the coastal low becomes the more dominant feature, expect
the peak snowfall rates and coverage to taper off, first across WNY
with the North Country to follow through the pre-dawn hours Sunday
morning. This is already being observed across portions of WNY and
the Southern Tier late this evening as the heavier snowfall threat
shifts east of the Genesee Valley, though a secondary area of
widespread snow currently over southern Ontario noted on regional
radar is expected to wrap back into western NY late tonight into
early Sunday morning. In addition, the lack of moisture in the DGZ
while weak low-level lift remains present could spur the development
of some patchy freezing drizzle overnight before colder air changes
the ptype solidly back over to snow, particularly in the Southern
Tier.

Additional snowfall overnight should generally range from 1-2"
across WNY north of Buffalo and Batavia and less than 1" from
Buffalo and Batavia Southward, while the eastern Lake Ontario region
will likely see another 3-5", with the greater totals expected
across the higher terrain around the Tug Hill and Western Dacks.

As the low passes early Sunday morning, pure synoptic snows will
wind down but we could see some limited lake enhancement in the
favored N-NW upslope areas, resulting in some additional snow
showers. That said, additional accumulations will be minor with less
than 2" in the most persistent snows Sunday afternoon.

&&

.SHORT TERM /TONIGHT THROUGH TUESDAY NIGHT/...
Zonal flow across New York State Sunday night through Monday, will
give way to a trough sliding east across southern Canada Monday
night through Tuesday. This pattern will generally support surface
high pressure to slide east from the Northern Plains to the eastern
Great Lakes by Monday night and eventually sliding further east
Tuesday, making way for a weak cold front to slide east across the
area Tuesday night.

In the wake of a shortwave trough passage, and associated surface
wave Sunday night, temperatures at 850 will plummet to around -16C
resulting in ongoing northwesterly flow lake effect activity Sunday
night to reinvigorate into health bands through Monday. This will
especially be the case for the lake band off of Lake Ontario. As
such several inches of snow may fall Sunday night through Monday,
mainly from Rochester to Fulton. While there will be a limited lake
response off of Lake Erie, any accumulations will be lighter and
generally less than two inches.

Surface high pressure will continue to build east across the lower
Great Lakes Monday and Monday night before shifting further east
Tuesday. Lake effect southeast of Lake Ontario Monday morning will
continue to linger throughout the day and night. As high pressure
crosses the area Monday night through Tuesday, dry air will advect
into the region along with causing winds to veer to the southwest,
resulting in lake effect snow showers to peter out and gradually
shift north to the Saint Lawrence Valley by Tuesday afternoon.
Meanwhile to the south of New York State Tuesday, weak surface low
will slide east across the Ohio Valley into the mid-Atlantic
resulting in the far northern edge of the system to brush the far
southern portions of New York state resulting in a few flurries.

A cold front helping to usher the surface high pressure east Tuesday
will cross the area from northwest to southeast Tuesday night,
supporting a brief period of snow showers.

&&

.LONG TERM /WEDNESDAY THROUGH SATURDAY/...
The long term period looks to remain active with a couple of systems
for the second half of the week and the weekend, along with some
potential lake enhancement/effect in between. Temperatures during
the period will remain near to below normal, with Wednesday and
Friday expected to be the two coldest days with highs 5 to 10
degrees below normal.

Wednesday and Wednesday night, a few snow showers will be possible
in the morning behind a passing cold front. Otherwise most of the
day into the evening should be dry. Wednesday night, an area of low
pressure will track from the mid-Mississippi Valley to near western
NY through the night. Out ahead of the sfc low, precipitation,
mainly in the form of snow, will develop along the systems warm
front. This will bring precipitation into most of the forecast area
by the late evening on Wednesday.

By Thursday morning, the sfc low will center over/near the WNY area
and continue to provide the potential for precipitation through at
least the first half of the day on Thursday. Guidance forecast track
for the sfc low has shifted slightly farther north, which would
increase the potential for at least some mixing with the snow,
especially for the lower elevations. This is still several days out
and changes to the track and expected precipitation type are sure to
occur.

As the system tracks away from the region, and cold air pushes into
the area, lake enhanced and then lake effect snow should develop
later Thursday and through much of Friday, and potentially into
Friday night.

Another area of low pressure will track toward the region, once
again developing over the Central U.S. and tracking across the Ohio
Valley. Certainty is also low with the systems track/speed, which
will have impacts on precip type and amounts.

&&

.AVIATION /06Z SUNDAY THROUGH THURSDAY/...
Low pressure will move off the southern New England coast this
morning, with the widespread light to moderate snow quickly tapering
off from west to east by daybreak. Some lake effect snow will linger
along the south shore of Lake Ontario through mid morning before
mostly breaking up by late morning. IFR VSBY will continue in areas
of snow through this morning, with LIFR east of Lake Ontario before
daybreak in moderate snow. CIGS will generally be a mix of MVFR/IFR.

Later this afternoon through tonight, expect lake effect snow
showers to increase in coverage again southeast of Lake Ontario with
the arrival of colder air aloft. WNW flow will direct most of these
snow showers from east of KROC to near KFZY, with local IFR/LIFR
conditions. Outside of this area, expect mainly dry conditions with
nothing more than a few flurries from this afternoon through
tonight. CIGS will generally be a mix of VFR/MVFR, with MVFR favored
across higher terrain and in lake effect areas.

Outlook...

Monday...VFR/MVFR at most terminals, localized IFR in lake
effect snow near the southeast corner of Lake Ontario.

Tuesday through Wednesday...VFR/MVFR, with a chance of snow showers.

Wednesday night through Thursday...Widespread IFR in accumulating
snow, possibly changing to a wintry mix Thursday.

&&

.MARINE...
Low pressure will then pass south of the lower Great Lakes
overnight. Northeast winds will increase on Lake Ontario as a
result, producing a brief round of Small Craft Advisory conditions
along the south shore of the lake.

Winds will then become northwest by Sunday morning, with west to
northwest winds strengthening on Lake Ontario by Sunday afternoon
and evening, producing another brief period of Small Craft Advisory
conditions on Lake Ontario. Have hoisted small crafts beginning late
tonight through Monday morning on Lake Ontario.

&&

.BUF WATCHES/WARNINGS/ADVISORIES...
NY...Winter Weather Advisory until 10 AM EST this morning for
     NYZ001>003-010>013-019>021-085.
     Winter Weather Advisory until 1 PM EST this afternoon for
     NYZ004>008-014.
MARINE...Small Craft Advisory until 10 PM EST this evening for LOZ042.
         Small Craft Advisory until 7 AM EST Monday for LOZ043-044.
         Small Craft Advisory from 5 AM early this morning to 7 AM
         EST Monday for LOZ045.

&&

SYNOPSIS...AR/PP
NEAR TERM...Hitchcock/PP
SHORT TERM...HSK
LONG TERM...SW
AVIATION...Hitchcock
MARINE...AR/Hitchcock
Hazardous weather outlook, Feb 8, 3:58 AM EST, 23 hours 31 minutes before
Hazardous Weather Outlook
National Weather Service Buffalo NY
358 AM EST Sat Feb 8 2025

NYZ001>003-010>013-019>021-085-091030-
Niagara-Orleans-Monroe-Northern Erie-Genesee-Wyoming-Livingston-
Chautauqua-Cattaraugus-Allegany-Southern Erie-
358 AM EST Sat Feb 8 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM EST SUNDAY...

This Hazardous Weather Outlook is for portions of western New York.

.DAY ONE...Today and 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...Sunday through Friday.

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 is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ004>008-014-091030-
Wayne-Northern Cayuga-Oswego-Jefferson-Lewis-Ontario-
358 AM EST Sat Feb 8 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 1 PM EST SUNDAY...

This Hazardous Weather Outlook is for portions of western and north
central New York.

.DAY ONE...Today and 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...Sunday through Friday.

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 is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

LEZ020-040-041-LOZ030-042>045-062>065-SLZ022-024-091030-
Upper Niagara River and Buffalo Harbor-
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
Lower Niagara River-
Lake Ontario nearshore waters from the Niagara River to Hamlin Beach-
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint Lawrence
River-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
Lake Ontario open waters from Sodus Bay to Mexico Bay-
Lake Ontario open waters from Mexico Bay to the Saint Lawrence River-
Saint Lawrence River from Cape Vincent to Ogdensburg-
Saint Lawrence River from Ogdensburg to Saint Regis-
358 AM EST Sat Feb 8 2025

This Hazardous Weather Outlook is for the New York waters of Lake
Erie, Lake Ontario, and the Saint Lawrence River.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

Hitchcock

In the hours before

Local storm report, Feb 9, 12:59 AM EST, 2 hours 30 minutes before
Preliminary Local Storm Report
National Weather Service Buffalo NY
1259 AM EST Sun Feb 9 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1259 AM     Snow             Geneva                  42.87N 76.98W
02/09/2025  M3.8 Inch        Ontario            NY   Trained Spotter

&&

Hitchcock

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 9, 3:29 AM ESTWinter Weather AdvisoryBUFJefferson, Lewis, Wayne48 hr

Nearby

Lake Effect Snow Warnings in New York, 2025Every lake effect snow warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.