Severe thunderstorms possible Friday evening and early Saturday

A low pressure system along the Pacific coastline will be the main cause for concern in southern Alberta Friday night. A shortwave trough in the exit region (the east side of the trough) will head straight into the southern border, where amble energy could aid in storm development. Daytime highs in southern Alberta are forecast to reach the low 30s Friday, with the trough arrival coinciding with the end of the day when warmer air will be rising. This increased water vapour in the atmosphere, com