More snow likely Tuesday before warmup begins Wednesday

A low complex (an area of low pressure systems with multiple centres) situated over the Prairies in the upper levels continues to bring colder air into Alberta. Clear skies north and east of Calgary are intensifying this situation and allowing overnight temperatures in that region to drop to dangerous levels. As such an extreme cold warning remains in effect for east-central Alberta and west-central Saskatchewan with wind chill values expected to hover around -40 at times.A shortwave trough asso