Weather Alerts

Jul 13, 2025 at 07:58 5:11 AM EDT Sunday 13 July 2025 Fog Advisory in effect for: Marathon – Schreiber Near zero visibility in fog is expected or occurring. Locally dense fog has developed and is expected to persist into early this morning before dissipating. Travel is expected to be hazardous due to reduced visibility in some locations.

Commercial vehicle safety will get special attention next week as the Ontario Provincial Police (OPP), in collaboration with the Ministry of Transportation (MTO) and other road safety partners, take part in Operation Safe Driver Week. Led by the Commercial Vehicle Safety Alliance (CVSA), the annual initiative will have the OPP and its partners conducting targeted enforcement among commercial and non-commercial ...

Jul 9, 2025 at 15:00 The highway has been reopened. Jul 9, 2025 at 13:25 ON511 is advising that Hwy 17 is closed from Wawa to Heyden because of a collision. There has been a collision by the Heyden. Detour: Hwy 101 (Wawa) to Hwy 129 (Chapleau) and then to Thessalon (Hwy 129/17) which is east of Sault Ste. Marie ...

Jul 5, 2025 at 18:53 At 18:36, Environment Canada ended the Severe Thunderstorm Watch for: Searchmont – Montreal River Harbour – Batchawana Bay Jul 5, 2025 at 18:20 At 18:17, Environment Canada ended the Severe Thunderstorm Watch for: Lake Superior Park – Agawa The Severe Thunderstorm Watch continues for: Searchmont – Montreal River Harbour – Batchawana Bay Jul 5, 2025 ...

Jul 5, 2025 at 17:41 At 17:32 this Severe Thunderstorm Watch was ended. Jul 5, 2025 at 11:46 At 11:30 a.m. Environment Canada issued a  Severe Thunderstorm Watch for: Wawa – Pukaskwa Park Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts up to 90km/hr, nickel to quarter-sized hail, and heavy ...

Jul 5, 2025 at 17:36 At 17:32 this watch ended. Jul 5, 2025 at 11:46 At 11:30 a.m. Environment Canada issued a  Severe Thunderstorm Watch for: White River – Dubreuilville Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts up to 90km/hr, nickel to quarter-sized hail, and heavy rain with rates ...

Jul 5, 2025 at 19:38 At 19:02, Environment Canada cancelled the Tornado Warning for: Chapleau – Missinaibi Lake Jul 5, 2025 at 15:19 3:08 PM EDT Saturday 5 July 2025 Tornado Watch in effect for: Chapleau – Missinaibi Lake Conditions are favourable for the development of severe thunderstorms which may produce tornadoes. Strong winds, large hail and heavy rain are ...

Jul 5, 2025 at 11:43 At 11:30 a.m. Environment Canada issued a  Severe Thunderstorm Watch for: Chapleau – Missinaibi Lake Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts up to 110km/hr, nickel to toonie-sized hail, and heavy rain with rates possibly exceeding 50 mm per hour this afternoon and evening. ...

Jul 5, 2025 at 09:10 Fog Advisory in effect for: Marathon – Schreiber At 9:06 a.m. Environment Canada issued a Fog Advisory for Marathon-Schreiber stating that “Near zero visibility in fog is expected or occurring.” Motorists should be prepared as visibility may be significantly and suddenly reduced to near zero. If visibility is reduced while driving, slow down, watch for ...

Jul 3, 2025 at 09:50 The Marathon Detachment of the Ontario Provincial Police (OPP) is advising motorists to be aware of potential traffic delays during their travels today. Slowdowns on Highway 17 east of Marathon and west of White River may periodically delay or interrupt the normal flow of traffic on area highways. The OPP’s objective is to maintain the ...

Jul 2, 2025 at 16:48 The Marathon detachment of the Ontario Provincial Police (OPP) is advising area motorists that traffic on Highway 17 east of Marathon and west of White River has resumed to the normal flow of traffic. Motorists should check in advance for road advisory information on social media and monitor local media for the latest updates. The ...

Jul 1, 2025 at 17:24 (16:55) The Marathon detachment of the Ontario Provincial Police (OPP) is advising area motorists that traffic on Highway 17 east of Marathon and west of White River has resumed to the normal flow of traffic. Motorists should check in advance for road advisory information on social media and monitor local media for the latest updates. ...

Jul 1, 2025 at 14:58 2:52 PM EDT Tuesday 1 July 2025 Severe Thunderstorm Watch in effect for: Chapleau – Missinaibi Lake Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts and large hail. Hazards: Wind gusts up to 90 km/h. Nickel to toonie size hail. This afternoon into the evening. ...

Jul 1, 2025 at 06:04 Jul 1, 2025 at 16:01 This warning has ended at 16:01. Jul 1, 2025 at 15:45 3:39 PM EDT Tuesday 1 July 2025 Severe Thunderstorm Warning in effect for: White River – Dubreuilville At 3:39 PM EDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing strong wind gusts and up to toonie ...

Jun 30, 2025 at 18:04 17:20 – The Marathon detachment of the Ontario Provincial Police (OPP) is advising area motorists that traffic on Highway 17 east of Marathon and west of White River has resumed to the normal flow of traffic. Motorists should check in advance for road advisory information on social media and monitor local media for the latest ...