Thursday, June 20th 2019, 5:30 am - An update on conditions for the heart of summer
Summer weather has been unusually slow to arrive across most of the country this year. While western Canada has seen periods of hot weather (even record heat), most of Canada has continued to be colder than normal during June. The map below shows the temperature anomalies for June 1 to 19, with blue and green highlighting the widespread colder than normal temperatures.
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This pattern will continue for a few days beyond the official start of summer on June 21, but it is much too early to write off the entire summer season. We still expect that summer will show-up. The maps below show our updated forecast for end of June, July and August.
Our forecast continues to highlight another hot and dry summer across B.C. with a heightened threat for wildfires. A changeable summer is likely from the Prairies, through Ontario, Quebec and Atlantic Canada, with less extreme heat compared to last summer. This changeable pattern contributes to the potential for periods of stormy weather with near normal or above normal rainfall expected much of Canada east of the Rockies. However, northern parts of the Prairies are expected to be drier than normal, and that dry pattern could end up extending further east into northern Ontario.
Below is a more detailed look at the conditions that we expect across Canada this summer.
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A very warm summer is expected with a heightened risk for extended periods of hot and dry weather, especially across the Interior. An extended period of cooler and unsettled weather during late June will help to temporarily ease wildfire concerns, but we expect that a very warm and dry pattern will resume for the majority of July and August with a higher than typical threat for wildfires and smoky conditions during the second half of the season.
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A warm summer is expected across most of Alberta, though there will still be periods of cooler weather at times. Near normal temperatures are expected across eastern Alberta. Smoke from wildfires will continue to be an issue, but a period of wet weather through the end of June will temporarily ease those concerns. Rainfall totals are expected to be near normal across much of the province, but drought and wildfire concerns will continue across northern areas. Meanwhile, above normal rainfall is expected for southwestern Alberta.