Latest news with #rainfall
CTV News
15 hours ago
- Climate
- CTV News
GRCA warns about rising water levels after rainy week
The Grand River Conservation Authority (GRCA) is reminding residents to be cautious around local waterways over the next few days. Heavy rainfall and thunderstorms were forecasted Wednesday and Thursday. Experts said thunderstorms may further increase the amount of rainfall in localized areas. 'Some areas in the watershed have already experienced 30-40 mm of rain in the last 12 hours, with another 20-30 mm of rain expected,' said a news release from the GRCA. The GRCA predicts no significant flooding but stressed that periods of heavy rain can cause flows in rivers and streams to increase quickly and without warning. 'While widespread riverine flooding is not expected, there may be some flooding in low lying areas near watercourses and in urban areas, if drainage systems are overwhelmed,' the GRCA said. Experts warn that banks adjacent to rivers and creeks are very slippery and, when combined with fast-moving water, pose a serious hazard. Parents are encouraged to keep their children and pets away from all watercourses. The GRCA said flood messages will be issued as needed.
CTV News
21 hours ago
- Climate
- CTV News
Pockets of heavy rainfall persist Thursday, region bracing for heat wave
CTV London Meteorologist Julie Atchison says areas of southern Ontario remain under a rainfall warning Thursday afternoon. Areas of southern Ontario remain under a rainfall warning as a low-pressure system moves through the region. CTV London Meteorologist Julie Atchison says the Bruce Peninsula in particular is experiencing some heavy rainfall. 'The air mass will be less humid as we head into your Friday, still unsettled though over [the next few] days,' said Atchison. 'Although the probability drops down to about a 40 per cent chance.' She warns residents some extreme heat will begin moving through southern Ontario starting Sunday. 'We will have a multi-day heat event Sunday, Monday, Tuesday into Wednesday,' she explained. 'The humidex will feel like 40 plus.' Here's a look at the rest of the forecast Thursday: Cloudy with 40 per cent chance of showers or drizzle. Wind northwest 30 km/h gusting to 50. Temperature steady near 20. Humidex 29. Thursday night: Mainly cloudy. 30 percent chance of showers or drizzle this evening. Wind northwest 20 km/h gusting to 40 becoming light late this evening. Low 14. Friday: Mainly cloudy. 40 per cent chance of showers late in the morning and in the afternoon with risk of a thunderstorm. Wind becoming west 20 km/h in the afternoon. High 25. Humidex 32. Saturday: Cloudy. High 29. Sunday: Sunny. High 33. Monday: Sunny. High 34.
CTV News
a day ago
- Climate
- CTV News
‘Significant rainfall' warnings in effect for areas in Ontario and Quebec
Areas of Ontario and Quebec have rainfall warnings on June 19, 2025. (Pexels) Ontario and Quebec have rainfall warnings in effect on Thursday, with heavy precipitation and thunderstorms expected in some areas, according to Environment Canada. Environment Canada noted that rainfall warnings are issued when 'significant rainfall' is expected. In Ontario, the rainfall warnings cover communities north of the Toronto area and Orillia, as well as outside Ottawa. For instance, the area covering Parry Sound, Rosseau and Killbear Provincial Park is expected to see between 40 and 60 millimetres of rainfall that will continue through the afternoon. 'Rain, at times heavy, and possible embedded thunderstorms are expected to taper to showers later today,' reads the warning on Environment Canada's website as of 3:22 a.m. EDT Thursday. The government advises people to contact their local conservation authority or Ontario Ministry of Natural Resources office for information on potential flooding or visit the province's webpage on floods. 'Heavy downpours can cause flash floods and water pooling on roads. Localized flooding in low-lying areas is possible,' according to Environment Canada. 'If visibility is reduced while driving, slow down, watch for tail lights ahead and be prepared to stop.' In Quebec, numerous areas outside of Montreal and Quebec City have rainfall warnings. For instance, the municipality of Saint-Donat and the Mont-Tremblant Park area could receive between 40 and 60 mm of rainfall until Thursday night.
CTV News
2 days ago
- Climate
- CTV News
Bust out those umbrellas, Environment Canada issues rainfall warning
A vehicle drives through water on a street during rainfall. It's time to bust those umbrellas out. Environment Canada has issued a rainfall warning for parts of Central Ontario on Wednesday. Residents in Huntsville, Baysville, Parry Sound, Rosseau, and Killbear Park could expect to see rainfall totals of up to 60 millimetres. The heavy rain will begin Wednesday evening and continue well into Thursday morning, according to the national weather agency. The warning, issued just before 12 p.m., advises locals to prepare for potential flash flooding, and reduced visibility during periods of intense rainfall. 'Rain, at times heavy, and possible embedded thunderstorms will move into the area tonight (Wednesday),' Environment Canada stated. Motorists are asked exercise caution during the heaviest rain periods. Visibility may be reduced at times, and road conditions could deteriorate, particularly in low-lying areas.
CTV News
2 days ago
- Climate
- CTV News
Severe thunderstorm watch issued as weather system moves through region
CTV London Meteorologist Julie Atchison says a line of thunderstorms will be passing through the area Wednesday. CTV London Meteorologist Julie Atchison says a line of thunderstorms will be passing through the area Wednesday. A line of thunderstorms will be passing through the area Wednesday, prompting a severe thunderstorm watch from Environment Canada. Several counties, including Bruce, Brandt, and Haldimand are under a rainfall warning. These areas could see an additional 40 to 60 millilitres of rain. 'The rest of the area, expecting some rain – heavy at times – as rounds of thunderstorms move through,' said CTV London Meteorologist Julie Atchison. 'In London, potential for upwards of 20 millimetres of rain.' Atchison added that some of these thunderstorms will have intense lightning and strong wind gusts. Some more showers are expected Wednesday night into Thursday, bringing some cooling relief. However, some extreme heat is in the forecast beginning this weekend and lasting into next week. Here's a look at the rest of the forecast Wednesday: Mainly cloudy. 30 per cent chance of showers near noon. Showers beginning near noon. Risk of a thunderstorm this afternoon. Local amount 15 to 25 mm. High 28. Humidex 36. Wednesday night: Showers or a few thunderstorms ending near midnight then cloudy with 40 per cent chance of showers. Risk of a thunderstorm overnight. Wind becoming southwest 30 km/h this evening then light after midnight. Low 17. Thursday: Cloudy. 30 per cent chance of showers in the morning. Wind becoming north 30 km/h in the morning. High 22. Humidex 26. Friday: A mix of sun and cloud with 30 per cent chance of showers. High 27. Saturday: Sunny. Windy. High 29. Sunday: Sunny. High 33.
