Unsettled week ahead

A typical fall pattern is upon us after the passage of a sharp cold front overnight. Decent thunderstorms last evening left about 13mm of rain in Montreal along with some gusty winds. However it was the spectacular lightning that stole the show, some of the best all season (see photo below). Behind the front temperatures will remain steady today around 20C (they have dropped to 15C in Ottawa and Toronto from highs near 28C yesterday) with gusty southwest winds. Tomorrow will be even cooler. Clouds will play with sunshine for most of the week, along with a decent chance of afternoon showers in the cool unstable air. This will be especially true if any sunshine develops, which tends to just mix the air up and make it that much more unstable.

HURRICANE News:
Hermine has moved inland over south Texas after drenching Mexico. Portions of the state had over 4 inches of rain with flooding reported this morning as far north as San Antonio. Along the coast 70mph winds caused minor damage and sporadic power outages. The remains of Hermine will move north into Oklahoma and Kansas with heavy rain. Meanwhile out in the far eastern Atlantic the parade of systems coming off the African coast continues. It looks like we have a 70% chance of another tropical depression forming just south of the Cape Verde Islands according to the National Hurricane Center. This breeding ground has produced Danielle, Earl and Fiona in the last couple of weeks. Look for a depression to form with the next 24 hours. If the system reaches 39mph it will be called Igor.

Image from www.stormpulse.com