Tornado warnings lifted, thunderstorm warnings issued west of ...

Environment Canada has lifted tornado warnings for the Deep River, Ont., region as it continues to track powerful thunderstorms capable of producing severe wind gusts and toonie-sized hail.

As of 5:30 p.m. ET, severe thunderstorm warnings were in place for a wide swath of eastern Ontario and western Quebec, including such communities as:

The storms could generate intense rainfall, hail and wind gusts up to 100 km/h, Environment Canada said. 

Meanwhile, severe thunderstorm watches continue to cover Ottawa-Gatineau and many surrounding communities to the south and east, including Kingston, Cornwall, Perth and Brockville.

In Ottawa, conditions are favourable for 90 km/h wind gusts, heavy rain and toonie-sized hail, Environment Canada said. There is currently no mention of a potential tornado for the nation's capital.

Ottawa's main airport recorded 17.4 millimetres of rain in a few hours during Tuesday's storm, the greatest single-day volume in six weeks.

Wednesday's forecasted high temperature in Ottawa is 30 C, with humidity making it feel as hot as 37. The capital hasn't reached 30 C since early October.

Daily heat records are possible Wednesday in communities including Brockville, Cornwall, Kingston and Belleville.