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Climate data for Calgary (Calgary International Airport) WMO ID : 71877; coordinates 51°06′50″N 114°01′13″W / 51.11389°N 114.02028°W / 51.11389; -114.02028 ( Calgary International Airport ) ; elevation: 1,084.1 m (3,557 ft); 1991–2020 normals, extremes 1881
Accumulated precipitation contours showing the June 19–22, 2013 rainfall event within Alberta's Rockies and the foothills that triggered the flooding [8]. Situated east of the Canadian Rockies, southern Alberta is a semi-arid region that does not usually receive high amounts of rainfall.
The country's precipitation has increased in recent years and wildfires expanded from seasonal events to year-round threats. As of 2022 Canada was the world's 11th highest emitter of carbon dioxide (CO2) [57] [58] and as of 2021 the 7th highest emitter of greenhouse gases. [59]
In a 1973 City of Calgary flood plain management report by Montreal Engineering Co. Ltd., estimates of flood-frequency of the Bow River upstream of the Elbow River in Calgary provided the following results: There is a 10-percent annual exceedance probability (AEP) flood or a 10-year flood return period with a peak flow or flood discharge ...
The zones around the cities of Regina and immediately east of Calgary are also very dry. Most heavy precipitation quickly dissipates by the time it passes Cheadle on its way heading east. [31] In an average year, southern Saskatchewan receives between 30–51 cm (12–20 in) of precipitation, with the majority falling between April and June.
Residents are warned that additional rain to target the Northwest through Wednesday could further worsen conditions for locations already impacted by the deluge of rainfall over the previous days.
Here are rainfall amounts, in inches, from the last 24 hours (unless otherwise noted) by locality, according to National Weather Service St. Louis: Illinois locations Belleville: 6.23, 6.33
The first atmospheric river of fall 2023 hit BC's coastal regions with up to 200 mm of rain, but this still fell far short of the rainfall deficit for the region. Some parts of the southern Interior received up to 50 mm of rain, but most remained relatively dry because of the rain shadow effect. [46]