Wind warning issued for Calgary with gusts up to 90 km/h expected

An intense low pressure system of just 986 mb situated south of Saskatchewan will be the main weather maker in central and southern Alberta Tuesday. Moisture is being pulled up from the U.S. Plains and Gulf and moving into central and southern Alberta as it circles counter-clockwise around this low which is acting as the southwestern anchor of an Omega block.Cold Arctic air from the high is mixing with that precipitation and limiting daytime highs to well below seasonal for much of southern Albe