Above-normal temperatures and below-normal rainfall could increase pressure on crops, pastures and livestock across east-central and southern Alberta as the growing season moves into August.

Agriculture and Agri-Food Canada’s latest National Agroclimate Risk Report forecasts above-normal temperatures across Canada during the coming weeks, while precipitation is expected to remain below normal in southern Alberta. The federal department said the combination of high temperatures and limited rainfall could worsen drought and wildfire conditions in parts of Western Canada.

The drier outlook follows a period of generally strong moisture conditions across much of Alberta.

Central areas received well-above-normal precipitation during the second half of June, including record rainfall around Edmonton. Provincial moisture conditions remained above the long-term average in July, although some areas experienced flooded fields, hail and other damage from severe storms.

Most major crops in Alberta’s south and central regions were rated in good-to-excellent condition during July. However, warmer temperatures and reduced rainfall could become a concern as cereal, oilseed and pulse crops move through important stages of development and begin approaching maturity.

The most recent Alberta Crop Report, based on conditions as of July 28, said warm weather continued to advance crop development. The report was released July 31 and provides regional information on crop condition, soil moisture, pasture growth and expected yields.

Fields that received adequate moisture earlier in the season may be better positioned to withstand a period of heat. Crops growing in areas with lighter soils, limited rainfall or uneven moisture could face greater stress if dry conditions continue.

Prolonged heat during grain filling can shorten the amount of time crops have to develop, potentially reducing kernel size and yield. Hot, dry weather may also accelerate crop maturity and bring harvest closer in parts of southern Alberta.

Pastures and hay land could also be affected. Reduced rainfall during August can slow pasture regrowth and place additional pressure on livestock water supplies, particularly in areas where dugouts and other sources were not fully replenished earlier in the year.

Livestock producers may also need to watch for heat stress during periods of high temperatures. Access to clean water, shade and adequate airflow can become increasingly important when cattle and other livestock are exposed to prolonged heat.

Drying vegetation, farm equipment and harvest activity can also increase the risk of grass and field fires. Producers are encouraged to monitor local fire restrictions, inspect machinery and ensure water tanks, extinguishers and other firefighting equipment are available during field operations.

The federal outlook calls for above-normal temperatures from August through October across much of Canada. Seasonal precipitation is expected to be below normal in parts of western Alberta and other areas of Western Canada.

Conditions will continue to vary across the region. Some farms entered August with strong soil-moisture reserves following repeated rain, while others received less precipitation or experienced crop damage from hail, flooding and strong winds.

The next National Agroclimate Risk Report is scheduled to be released Aug. 18.