Weather

Severe Thunderstorm Watch

Conditions are favourable for the development of dangerous thunderstorms that may be capable of producing damaging wind gusts, damaging hail and torrential rain. ### Very strong wind gusts can damage buildings, down trees and blow large vehicles off the road. Remember, severe thunderstorms can produce tornadoes. Heavy downpours can cause …

Read More »

Severe Thunderstorm Watch

Thunderstorms are expected to affect southwestern Ontario this morning and into this afternoon. Any thunderstorms that do develop will have the potential to produce torrential rainfall. The threat of thunderstorms will diminish late this afternoon as the upper level disturbance responsible moves away from the region. Heavy downpours can cause …

Read More »

Possible high levels of air pollution are expected today.

Possible high levels of air pollution are expected today. A SPECIAL AIR QUALITY STATEMENT is in place due to the possibility of deteriorating air quality. Hot and sunny conditions are expected to cause increasing ground-level ozone concentrations this afternoon in the above regions. Moderate risk AQHI values are expected throughout …

Read More »

Yet another April snowfall on tap.

Yet another April snowfall on tap. The latest battle between spring and a very stubborn winter is setting up for today and tonight across Southern Ontario. A large Alberta Clipper approaching the Great Lakes from the northwest will spread a large area of snow into the region, with the snow …

Read More »

Snow Squall Watch

Snow squalls are likely to develop tonight and then weaken later Sunday morning. Strong northwest winds are expected to develop tonight in the wake of an Alberta Clipper crossing Southern Ontario. Flurries and localized snow squalls should develop late this evening or overnight. Local amounts of 15 centimetres are possible …

Read More »

Thunderstorm Warning

A line of thunderstorms and heavy showers over Southern Michigan will move eastward through the region from 6 pm to 8 pm. There may be small hail with some of these storms and southwesterly wind gusts to 80 kilometers per hour. Local rainfall amounts up to 20 millimetres are possible. …

Read More »

Rainfall Warning

Rain, heavy at times, will begin this evening and end Monday afternoon. Total rainfall amounts of 25 to 50 mm are expected. Rainfall warnings are issued when 25 mm or more of rain are expected within 24 hours, when the ground is frozen or saturated, and has a reduced ability …

Read More »

Winter Weather Warning

Winter weather threatening this week mainly north of London and Niagara however there is a risk of freezing rain across the regions. There may be higher impacts from the rainfall or the odd thunderstorm. A weak disturbance will bring a little snow or rain to most of Southern Ontario today. …

Read More »

Winter Storm Warning for St. Thomas

St. Thomas – Aylmer – Eastern Elgin County Issued at 15:50 Tuesday 01 March 2016 Hazardous winter conditions are expected. A winter storm will bring freezing rain, ice pellets, and snow to the north shore or Lake Erie tonight. There are reports of freezing rain in Windsor at the moment …

Read More »

Winter Storm Warning

St. Thomas – Aylmer – Eastern Elgin County Issued at 15:24 Monday 29 February 2016 A major winter storm is expected. A deepening low pressure system will give heavy snow and blowing snow. The snow will begin Tuesday midday and intensify into the evening with the heaviest amounts of snow …

Read More »

Winter Storm Watch

St. Thomas – Aylmer – Eastern Elgin County A snow storm is looking more likely for Southern Ontario Tuesday and Tuesday night. A low pressure system developing over Texas today will head towards the Lower Great Lakes and is expected to spread an area of snow into Southern Ontario Tuesday …

Read More »

Potential snow storm for Southern Ontario

Special Weather Statement St. Thomas – Aylmer – Eastern Elgin County Potential snow storm for Southern Ontario Tuesday and Tuesday night. A low pressure system developing over the southern United States Monday will head towards the Lower Great Lakes and is expected to spread an area of snow into Southern …

Read More »

Rainfall Warning

Rain, heavy at times is expected. The frozen ground has a reduced ability to absorb this rainfall. A moisture laden low pressure area located over Kentucky this morning will bring a significant rain storm to the region as it tracks up just south of Lakes Erie and Ontario later today …

Read More »

Special Weather Statement

A major storm system is expected to affect Ontario Wednesday and Thursday. A low pressure system developing over the Southern States will track northeast to reach Southern Ontario Wednesday. This storm is expected to bring rain and significant snow to some areas, along with the possibility of freezing rain. The …

Read More »

Freezing Drizzle Advisory

Areas of freezing drizzle are expected or occurring. Freezing drizzle has been reported in several locations across southwestern Ontario this afternoon. A weak disturbance affecting southwestern Ontario is producing a combination of light snow and areas of freezing drizzle. These conditions are forecast to linger for much of the day …

Read More »

Special Weather Statement

St. Thomas – Aylmer – Eastern Elgin County Issued at 15:33 Friday 12 February 2016 Occasional Poor visibilities in sudden bursts of snowfall this afternoon and into the evening. A vigorous cold front is moving southwards across southern Ontario. Ahead of this cold front convective snowshowers have developed and are …

Read More »

Extreme Cold Warning

A period of very cold wind chills is expected. A cold front will pass through the regions tonight. Very cold temperatures will follow in its wake, along with gusty northwest winds. Very cold wind chill values between about minus 30 and minus 35 are expected overnight and Saturday morning. Wind …

Read More »

Snow Squall Watch

Snow Squalls are Expected to Develop Tonight. Heavy flurries off Lake Huron are affecting areas between Grand Bend and Sarnia today. Local amounts of 10 to 15 cm are expected. Snow squalls are forecast to develop tonight and persist into Wednesday. Under the snow squall bands, visibilities may be significantly …

Read More »

Rainfall Warning

Rain, heavy at times is expected. The frozen ground has a reduced ability to absorb this rainfall. Rain is forecast to spread into the regions this evening. The rainfall will be heavy at times, mainly through the overnight hours, and may be accompanied by a thunderstorm or two. Total rainfall …

Read More »

Special Weather Statement

A low pressure system will track across Lake Huron Tuesday morning and into southern Quebec Tuesday night. The system is expected to bring snowfall amounts in the range of 5 to 10 cm to southern Ontario Tuesday, with 10 to 15 cm of snow possible along the lakeshore regions of …

Read More »