22 August, 2017
The tornado watch applies to Ottawa, Gatineau, Prescott-Russell, Petawawa, Pembroke, Cobden, Barry's Bay, Killaloe, Renfrew, Arnprior, Calabogie, Smiths Falls, Perth, Sharbot Lake and Lanark County. Training thunderstorms in our southern locations are a threat that continues this evening. The skies will remain mostly clear overnight with a low of 56. In addition to our live coverage, you can stay up-to-date with the latest weather information via necn.com's weather page, and our necn mobile app. The day will otherwise be hot and humid with a high of about 90.
At the same time a cold front well to our west is generating some heavy weather that we are keeping an eye on, including a tornado watch.
Tuesday's extraordinarily muggy weather could lead to tornadoes in the region this afternoon and evening.
An unusually strong push of dry, Canadian air will clash with high heat and humidity from the Mississippi Valley through the Ohio Valley, mid-Atlantic and into western New England.
Storms in the watch area may produce severe storms and possible tornadoes.
"Stronger storms today will be capable of producing brief heavy rain, frequent lightning, and some hail", the NWS says.