continental polar air masses are associated with dry cool weather.
continental polar air masses are associated with dry cool weather.
which type of air masses are associated with dry cool weather?
continental polar
the region's climate are influenced by various air masses and weather systems from other locations, proximity to lake ontario, topography and elevation (e.g. niagara escarpment, and oak ridges moraine), and urban and rural land uses. the air masses and weather systems are the major factors in influencing the climate of the region. being located in southern ontario, it is located between the arctic, subtropics, and the atlantic ocean; consequentially, it is impacted by air masses from different origins. in general, the air masses that affect the region are continental polar, continental arctic, maritime polar, and occasionally continental tropical air masses in summer. during winter, cold and dry air masses predominate (continental arctic and maritime polar) although warmer, moister air masses may move north during this time, leading to milder temperatures and potential for heavy snowfall/freezing rain/rainfall. the most severe snow and freezing rain events occur when warmer, moister air masses move northward to the region and meet colder air. during winter, a common type of storm is known as the "alberta clipper" which affects the region in which moist pacific air moves east of the rocky mountains to the region, bringing snow that is often followed by the influx of cold continental air afterwards (leads to colder temperatures). spring and autumn are characterized by variable weather and rapid alternating air masses. this leads to frequent cloudy conditions, rain, and occasional thunderstorms. in summer, the air masses that influence the region are predominantly maritime polar air masses from the pacific ocean, and tropical air masses from the gulf of mexico, the latter being responsible for bringing heat waves, high humidity, and intense rainfall events. towards late summer and early autumn, tropical storms and remnants of hurricanes may bring strong winds and heavy rainfalls to the area. during autumn, arctic air masses become increasingly common, leading to colder conditions.
regional municipality of peel
the park has a maritime climate with cool summers and mild winters. in the northern parts of the peninsula, the climate is among the most temperate in canada. the climate of park is influenced by both georgian bay and lake huron, which significantly moderate temperatures. as a result, they tend to prolong milder temperatures in the fall and cooler temperatures in spring. summers are warm, with an average temperature of while winters are cool, averaging . summers are dominated by hot, humid air masses from the pacific ocean and the gulf of mexico. in winter, pacific air masses predominate, bringing in warm and humid air although cold, dry air from the arctic highs can occur, bringing in colder and drier conditions. warm air masses coming from the gulf of mexico are rare during winter but are responsible for bringing january and february thaws. spring and fall are characterized by complex weather patterns with contrasting and rapidly changing influences from the different regional air masses. the park receives of precipitation per year. this is evenly distributed throughout the year with fall (september–november) being the wettest. precipitation is slightly lower than inland areas due to the limited influence that the narrow peninsula has when air masses travel over it compared to more interior locations.
bruce peninsula national park