snow squall
Snow squalls off Lake Huron slowly weakening today.
What:
5 to 10 cm of additional local snowfall.
When:
Today.
Additional information:
Lake effect snow off Lake Huron has decreased in intensity this morning and should continue to do so as the day progresses.
###
Travel will likely be hazardous.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 17, 2025 16:17
Until: Nov 18, 2025 00:01
snow squall
###
Visibility will likely be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 16, 2025 14:25
Until: Nov 17, 2025 20:59
snow squall
Snow squalls expected off Lake Huron.
What:
10 to 15 cm of additional local snowfall.
When:
Today.
Additional information:
Lake effect snow off Lake Huron will continue today. The heaviest snow band is expected to shift east of London this afternoon.
###
Visibility will likely be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 17, 2025 09:42
Until: Nov 17, 2025 20:59
Winter Weather Advisory
* WHAT...Lake effect snow expected. Total snow accumulations 4 to 7
inches in the most persistent lake snows across the higher terrain
inland from Lake Erie. Winds gusting as high as 45 mph will
produce blowing and drifting snow.
* WHERE...Chautauqua and Cattaraugus Counties. The greatest
accumulations will be across the higher terrain inland from the
Lake Erie shore. Accumulations close to the lake including along
the NYS Thruway will be less than an inch.
* WHEN...Until 1 PM EST Monday.
* IMPACTS...Travel will be difficult with snow covered roads and
poor visibility. The hazardous conditions will impact the Monday
morning commute.
From: Nov 16, 2025 17:29
Until: Nov 17, 2025 08:00
snow squall
Snow squalls expected off Lake Huron.
What:
Total snowfall accumulations of 20 to 40 cm, with the highest amounts expected in the most persistent lake effect snow bands.
When:
This afternoon through Monday morning.
Additional information:
Lake effect snow off Lake Huron will intensify through the afternoon. A prominent snow squall is expected to form late today through tonight. The exact positioning of this snow squall remains somewhat uncertain, and therefore the location of the greatest snowfall totals. Conditions are expected to improve by near noon on Monday, although flurries will likely continue into Monday afternoon.
###
Visibility will likely be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 16, 2025 14:25
Until: Nov 17, 2025 06:25
Wind Advisory
* WHAT...Northwest winds 25 to 35 mph with gusts of 40 to 50 mph.
* WHERE...Niagara, Orleans, Monroe, Wayne, Northern Cayuga, Oswego,
Genesee, Wyoming, Livingston, Ontario, and Allegany Counties.
* WHEN...Until 1 AM EST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few isolated power outages may
result.
From: Nov 16, 2025 07:01
Until: Nov 17, 2025 06:00
snow squall
###
Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 16, 2025 10:04
Until: Nov 17, 2025 02:04
snow squall
Snow squalls are expected.
What:
Total snowfall accumulations of 20 to 40 cm, with the highest amounts expected if a snow squall locks into place over a particular region.
Significantly reduced visibility in heavy snow.
When:
Late this afternoon through Monday morning.
Additional information:
Lake effect snow will develop off of Lake Huron beginning late this afternoon. A snow squall band is expected to form late in the day and last through the night. The exact positioning of this snow squall band is uncertain at this time and therefore the location of the greatest snowfall totals.
###
Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 16, 2025 10:04
Until: Nov 17, 2025 02:04
Winter Weather Advisory
* WHAT...Lake effect snow expected. Total snow accumulations 4 to 7
inches in the most persistent lake snows across the higher terrain
inland from Lake Erie. Winds gusting as high as 45 mph will
produce blowing and drifting snow.
* WHERE...Chautauqua and Cattaraugus Counties. The greatest
accumulations will be across the higher terrain inland from the
Lake Erie shore. Accumulations close to the lake including along
the NYS Thruway will be less than an inch.
* WHEN...From 10 AM this morning to 1 PM EST Monday.
* IMPACTS...Travel will be difficult with snow covered roads and
poor visibility. The hazardous conditions will impact the Monday
morning commute.
From: Nov 16, 2025 05:37
Until: Nov 16, 2025 19:00
snow squall
Snow squalls are expected.
What:
Total snowfall accumulations of 20 to 40 cm, with the highest amounts expected if a snow squall locks into place over a particular region.
Significantly reduced visibility in heavy snow.
When:
Late Sunday through Monday morning.
Additional information:
Lake effect snow will develop off of Lake Huron beginning Sunday. A snow squall band is expected to form late in the day and last through the night. The exact positioning of this snow squall band is uncertain at this time and therefore the location of the greatest snowfall totals.
###
Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 16, 2025 02:45
Until: Nov 16, 2025 18:45
Winter Weather Advisory
* WHAT...Lake effect snow. Additional snow accumulations 1 to 3
inches in the most persistent lake snows.
* WHERE...Niagara and Orleans Counties.
* WHEN...Until 10 AM EST this morning.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions will impact the Wednesday morning commute.
* ADDITIONAL DETAILS...Snow will change over to plain rain later
this morning.
From: Nov 12, 2025 05:44
Until: Nov 12, 2025 15:00
Winter Weather Advisory
* WHAT...Lake effect snow. Additional snow accumulations 1 to 3
inches in the most persistent lake snows.
* WHERE...Northern Erie County.
* WHEN...Until 10 AM EST this morning.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions will impact the Wednesday morning commute.
* ADDITIONAL DETAILS...A brief period of moderate snow remains
possible in the Buffalo Metro area and the Northtowns through the
early morning hours before snow changes to plain rain.
From: Nov 12, 2025 05:44
Until: Nov 12, 2025 15:00
Winter Weather Advisory
* WHAT...Lake effect snow. Additional snow accumulations 3 to 5
inches in the most persistent lake snows.
* WHERE...Northern Erie County.
* WHEN...Until 10 AM EST Wednesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions will impact the Wednesday morning commutes.
* ADDITIONAL DETAILS...A brief period of moderate snow in the
Buffalo Metro area and the Northtowns tonight into early Wednesday
morning before snow changes to plain rain.
From: Nov 11, 2025 17:50
Until: Nov 12, 2025 09:00
Winter Weather Advisory
* WHAT...Lake effect snow. Additional snow accumulations 3 to 5
inches in the most persistent lake snows.
* WHERE...Niagara and Orleans Counties.
* WHEN...Until 10 AM EST Wednesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions will impact the Tuesday evening and Wednesday morning
commutes.
From: Nov 11, 2025 17:50
Until: Nov 12, 2025 09:00
Winter Weather Advisory
* WHAT...Lake effect snow. Additional snow accumulations 4 to 8
inches in the most persistent lake snows.
* WHERE...Cattaraugus and Southern Erie Counties.
* WHEN...Until 1 PM EST Tuesday.
* IMPACTS...Travel will be difficult. The hazardous conditions will
impact the Monday and Tuesday morning commutes.
From: Nov 10, 2025 09:11
Until: Nov 10, 2025 22:00
weather
Accumulating snow likely today.
What:
Snowfall amounts of 5 to 10 cm. Amounts may be lesser near the shore of Lake Ontario.
When:
This morning through this evening.
Additional information:
Precipitation may begin as rain for locations near the shore of Lake Ontario and the Niagara Peninsula before changing to snow. Higher snowfall amounts may be possible over the higher terrain of the Niagara Escarpment.
There remains uncertainty with respect to the track of this weather system, and as such forecast snowfall amounts may change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 09, 2025 10:22
Until: Nov 10, 2025 02:22
weather
Accumulating snow likely today.
What:
Snowfall amounts of 5 to 10 cm. Amounts may be lesser near the shores of Lake Erie and Lake Ontario.
When:
This morning through this evening.
Additional information:
Precipitation may begin as rain before changing to snow for areas adjacent to Lake Erie and Lake Ontario. For these areas, snowfall amounts may be lesser.
There remains uncertainty with respect to the track of this weather system, and as such forecast snowfall amounts may change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 09, 2025 06:51
Until: Nov 09, 2025 22:51
weather
Accumulating snow likely on Sunday.
What:
Snowfall amounts of 2 to 10 cm.
When:
Beginning Sunday morning and continuing through Sunday evening.
Additional information:
A low pressure system will bring snowfall to parts of southern Ontario on Sunday. Precipitation may begin as rain before changing to snow for areas adjacent to Lake Erie and Lake Ontario. For these areas, snowfall amounts may fall within the lower end of the forecast range.
Confidence remains low with respect to the strength and track of this weather system, and as such the areas affected and snowfall amounts may change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 09, 2025 03:32
Until: Nov 09, 2025 19:32
Winter Weather Advisory
* WHAT...Rain changing over to wet snow expected. Total snow
accumulations 3 to 5 inches.
* WHERE...Niagara and Orleans Counties.
* WHEN...From 10 AM this morning to 7 AM EST Monday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions will impact the Monday morning commute.
* ADDITIONAL DETAILS...The majority of snow accumulations through
this afternoon will be on grassy and elevated surfaces, though
snow intensity may be sufficient to result in snow covered roads
at times.
From: Nov 09, 2025 06:44
Until: Nov 09, 2025 19:00
weather
Accumulating snow likely on Sunday.
What:
Snowfall amounts of 2 to 10 cm.
When:
Beginning Sunday morning and continuing through Sunday evening.
Additional information:
A low pressure system will bring snowfall to parts of southern Ontario on Sunday.
Confidence remains low with respect to the strength and track of this weather system, and as such the areas affected and snowfall amounts may continue to change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 08, 2025 21:04
Until: Nov 09, 2025 13:04
weather
Accumulating snow likely on Sunday.
What:
Snowfall amounts of 2 to 10 cm.
When:
Beginning Sunday morning and continuing through Sunday evening.
Additional information:
A low pressure system will bring snowfall to parts of southern Ontario on Sunday. Precipitation may begin as rain before changing to snow Sunday afternoon for the Niagara Peninsula.
Confidence remains low with respect to the strength and track of this weather system, and as such the areas affected and snowfall amounts may change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 08, 2025 20:57
Until: Nov 09, 2025 12:57
weather
Accumulating snow likely on Sunday.
What:
Snowfall amounts of 2 to 10 cm.
When:
Beginning Sunday morning and continuing through Sunday evening.
Additional information:
A low pressure system could bring snowfall to parts of southern Ontario on Sunday. Confidence remains low with respect to the strength and track of this weather system, and as such the areas affected and snowfall amounts may change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
Installation of winter tires should be considered prior to Sunday.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 08, 2025 09:44
Until: Nov 09, 2025 01:44
weather
Gusty winds continue this evening.
What:
Northwesterly winds gusting 70 to 80 km/h.
When:
Continuing this evening.
Additional information:
Strong wind gusts can toss loose objects and cause tree branches to break. Power outages are possible.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 05, 2025 21:50
Until: Nov 06, 2025 05:01
weather
Gusty winds expected today.
What:
Southwesterly winds becoming northwesterly gusting 70 to 80 km/h.
When:
This afternoon and evening.
Additional information:
Southwesterly winds are expected to become northwesterly late this afternoon with the passage of a cold front. Winds will diminish later this evening into the overnight.
Strong wind gusts can toss loose objects and cause tree branches to break. Power outages are possible.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 05, 2025 10:30
Until: Nov 06, 2025 02:30
Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected.
* WHERE...All of western and north central New York.
* WHEN...From 1 PM this afternoon to 1 AM EST Thursday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Nov 05, 2025 05:34
Until: Nov 05, 2025 18:15
weather
Gusty winds are expected today.
What:
Winds gusts of 70 to 80 km/h.
When:
This morning through early this evening.
Additional Information:
Strong southwest winds are expected to change to west or northwest later in the day and diminish in the evening.
Strong wind gusts can toss loose objects and cause tree branches to break. Power outages are possible.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 03, 2025 09:53
Until: Nov 04, 2025 01:53
Wind Advisory
* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph
expected.
* WHERE...Erie, Niagara, Orleans, Jefferson, Genesee, and Chautauqua
Counties. Strongest gusts expected along the shoreline of Lakes
Erie and Ontario, and then downwind of Lake Erie and Lake Ontario.
* WHEN...From 10 AM to 10 PM EST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects,
including outdoor holiday decorations. Tree limbs could be blown
down and a few power outages may result.
From: Nov 03, 2025 05:05
Until: Nov 03, 2025 20:15
Wind Advisory
* WHAT...West to northwest 20 to 30 mph with gusts up to 50 mph
expected.
* WHERE...Erie, Niagara, Orleans, Monroe, Wayne, Northern Cayuga,
Oswego, Genesee, Wyoming, Livingston, Ontario, Chautauqua,
Cattaraugus, and Allegany Counties.
* WHEN...From 11 AM this morning to 5 AM EDT Saturday.
* IMPACTS...Gusty winds will blow around unsecured objects,
including Halloween decorations. Tree limbs could be blown down
and a few power outages may result.
From: Oct 31, 2025 05:06
Until: Nov 01, 2025 09:00
frost
Frost may damage some crops in frost-prone areas.
###
Damage to plants, trees, and crops is possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Oct 29, 2025 08:53
Until: Oct 29, 2025 14:59
frost
Frost may damage some crops in frost-prone areas.
Temperatures near the freezing mark will continue early this morning.
###
Damage to plants, trees, and crops is possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Oct 29, 2025 08:53
Until: Oct 29, 2025 14:59
frost
Widespread frost is no longer expected.
###
From: Oct 29, 2025 13:07
Until: Oct 29, 2025 14:07
frost
Frost may damage some crops in frost-prone areas.
Temperatures are expected to fall to near the freezing mark again tonight into early Tuesday morning.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Oct 27, 2025 16:14
Until: Oct 28, 2025 08:14
frost
Frost may damage frost-sensitive fruit trees and vegetable plants.
Temperatures may fall to near the freezing mark early Thursday morning, particularly for areas inland from the Great Lakes.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Oct 15, 2025 23:37
Until: Oct 16, 2025 13:59
Frost Advisory
* WHAT...Temperatures in the mid 30s will result in frost formation.
* WHERE...Erie, Genesee, Wyoming, Livingston, and Chautauqua
Counties inland from Lake Erie.
* WHEN...From 2 AM to 9 AM EDT Thursday.
* IMPACTS...Frost could kill sensitive outdoor vegetation if left
unprotected.
From: Oct 15, 2025 18:21
Until: Oct 16, 2025 13:00
frost
Frost may damage some crops in frost-prone areas.
###
Frost advisories are issued when temperatures are expected to reach the freezing mark during the growing season, leading to potential damage and destruction to plants and crops.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Oct 09, 2025 01:48
Until: Oct 10, 2025 00:42
frost
Frost may damage some crops in frost-prone areas.
Temperatures are expected to drop to near zero degrees Celsius early this morning resulting in frost.
Frost is expected again tonight into early Friday morning.
###
Frost advisories are issued when temperatures are expected to reach the freezing mark during the growing season, leading to potential damage and destruction to plants and crops.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Oct 09, 2025 08:42
Until: Oct 10, 2025 00:42
Frost Advisory
* WHAT...For the first Frost Advisory, temperatures in the mid 30s
will result in frost formation. For the second Frost Advisory,
temperatures in the lower 30s will result in frost formation.
* WHERE...Chautauqua and Southern Erie Counties.
* WHEN...For the first Frost Advisory, until 9 AM EDT this morning.
For the second Frost Advisory, from 11 PM this evening to 9 AM EDT
Friday.
* IMPACTS...Frost could kill sensitive outdoor vegetation if left
unprotected.
From: Oct 09, 2025 09:14
Until: Oct 09, 2025 21:15
Frost Advisory
* WHAT...Temperatures in the lower 30s will result in frost
formation.
* WHERE...Niagara, Orleans, Monroe, Wayne, Northern Cayuga, and
Ontario Counties.
* WHEN...From 11 PM this evening to 9 AM EDT Friday.
* IMPACTS...Frost could kill sensitive outdoor vegetation if left
unprotected.
From: Oct 09, 2025 05:25
Until: Oct 09, 2025 21:15
Frost Advisory
* WHAT...Temperatures in the low to mid 30s will result in frost
formation.
* WHERE...Northern Erie, Genesee, Wyoming, and Livingston Counties.
* WHEN...From 11 PM this evening to 9 AM EDT Friday.
* IMPACTS...Frost could kill sensitive outdoor vegetation if left
unprotected.
From: Oct 09, 2025 09:14
Until: Oct 09, 2025 21:15
Frost Advisory
* WHAT...For the first Frost Advisory, temperatures in the mid 30s
will result in frost formation. For the second Frost Advisory,
temperatures in the lower 30s will result in frost formation.
* WHERE...Erie, Genesee, Wyoming, Livingston, and Chautauqua
Counties.
* WHEN...For the first Frost Advisory, until 9 AM EDT this morning.
For the second Frost Advisory, from 11 PM this evening to 9 AM EDT
Friday.
* IMPACTS...Frost could kill sensitive outdoor vegetation if left
unprotected.
From: Oct 09, 2025 05:25
Until: Oct 09, 2025 17:30
frost
Frost may damage some crops in frost-prone areas.
Temperatures are expected to drop to near zero degrees Celsius tonight into early Thursday morning.
###
Frost advisories are issued when temperatures are expected to reach the freezing mark during the growing season, leading to potential damage and destruction to plants and crops.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Oct 08, 2025 14:32
Until: Oct 09, 2025 13:59
Frost Advisory
* WHAT...Temperatures in the mid 30s will result in patchy frost
formation.
* WHERE...Erie, Genesee, Wyoming, Livingston, and Chautauqua
Counties.
* WHEN...From 3 AM to 9 AM EDT Thursday.
* IMPACTS...Frost could kill sensitive outdoor vegetation if left
unprotected.
From: Oct 08, 2025 05:35
Until: Oct 09, 2025 07:00
