Sarnia

Brief period of freezing rain possible Wednesday.

What:
Brief period of freezing rain with minor ice accretion on some surfaces possible.
Surfaces such as highways, roads, walkways and parking lots may become icy, slippery and hazardous.

When:
Wednesday morning to early Wednesday evening.

Additional information:
A brief period of freezing rain is possible before a transition to rain. For locations near Lake Ontario, temperatures will likely remain above the freezing mark.

###

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.

Rain, heavy at times is expected. The ground, already near saturation, has little ability to absorb further rainfall.

What:
Rain, at times heavy. Total rainfall amounts of 30 to 50 mm. Locally higher amounts are possible if thunderstorms repeatedly impact the same area.

When:
Wednesday morning through early Thursday morning.

Additional information:
Rain begins Wednesday morning over extreme southwestern Ontario before reaching the Golden Horseshoe Wednesday afternoon. With thunderstorms expected, rainfall amounts may exceed 50 mm over some areas, particularly over southwestern Ontario. Rain will end from west to east overnight into early Thursday morning.

For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details.

###

Localized flooding in low-lying areas is possible. Heavy downpours can cause flash floods and water pooling on roads.

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.

There will be partly cloudy with rain until morning, then rain with snow

There will be partly cloudy until morning, then rain

The day will start with rain with snow through the late morning hours, transitioning to partly cloudy

You can expect partly cloudy with rain in the morning, with partly cloudy with snow in the afternoon

Expect a day of partly cloudy with clear spells

A search is underway in a Sarnia neighbourhood for a missing 47-year-old woman.
Sarnia police said there will be officers in the 700 block of Roger Street, just east of Indian Road between Exmouth Street and Maxwell Street, in connection to the investigation.
Christine Adamson was last seen Saturday, October 1, in that area.
Police said Thursday the <a href="https://blackburnnews.com/sarnia/sarnia-news/2022/10/06/sarnia-woman-reported-missing-police/">Criminal Investigation Branch took over the case</a>, as they were concerned for her welfare after she was reported missing Wednesday night.
Adamson is described as being approximately 4’ 10”, weighing approximately 129 pounds, with short spiky hair and hazel eyes. She has a large tattoo on her chest, tribal tattoos on both of her arms, tattoos on her fingers, and a flower tattoo behind one of her ears.
Anyone with information regarding Adamson’s whereabouts is asked to call city police at 519-344-8861 extension 0.
Police said an update on the investigation would be provided later in the day Friday.

Christine Adamson. (Photos courtesy of Sarnia Police Service)

Rain (Photo by Doctor_bass/iStock/Getty Images Plus via Getty Images)

Midwestern

Windsor

Chatham

Heavy rainfall (photo by Tamara Thornton, Blackburn Media)

Sarnia's Canatara Park Beach Lifeguard Office. BlackburnNews.com (File photo by Melanie Irwin)

Sarnia police uniform logos. Photo courtesy Sarnia Police Service.

Sarnia City Hall. October, 2023 Blackburn Media photo by Melanie Irwin

Norm Perry Park phasing plan. Image courtesy of City of Sarnia, via. council agenda March 31, 2025.

Sarnia police search Roger St. for missing woman

Read More Local Stories

Rainfall warning in effect

Area conservation authorities brace for flooding

New mural hopes to revitalize Canatara lifeguard station this summer

Use of force by Sarnia police steady year over year

Sarnia council briefs

$12M plan revealed for Norm Perry Park