If La Nina develops this summer as anticipated, it could bring unwelcome weather at the tail end of the growing season. | File photo

La Nina’s return could bring early frost to Prairies

The weather phenomenon’s arrival is not guaranteed, and some believe it would be a weak one if it does materialize

SASKATOON — Farmers in the northern Plains region of North America should keep a close eye on La Nina, says a meteorologist. If it develops this summer as anticipated, it could bring unwelcome weather at the tail end of the growing season. Related stories: “An early frost may be possible there in the Dakotas and […] Read more

A killing frost usually refers to conditions in which more than 50 per cent of the vegetation in a region has been killed by frost, and a freeze is when ice crystals form in plant tissue, resulting in permanent injury. | Twitter.com/@RodNickel_Rtrs  photo

Science helps understand early, late frost risk

Besides drought, frost probably has the greatest impact on agriculture. Using a climatic definition, frost occurs when the temperature of the land surface drops below 0 C, but with respect to agriculture, frost is substantially more difficult to define. Looking at cereal crops, for example, a temperature of 0 C will not result in crop […] Read more

Canola harvest continues across the Prairies.  |  Becky Zimmer photo

Prairie harvest stays ahead of five-year average

Dry conditions across the region continue to leave many producers without adequate soil moisture as harvest wraps up

Harvest continues across the Prairies with completion rates continuing to surpass provincial and regional five-year averages. Producers in Alberta are 65 percent complete, a 21 percent increase compared to last week, according to the Alberta crop report released on Sept. 22. Producers in the south are nearly 91 percent finished on all crops, an increase […] Read more


Frost can occur even when the thermometer shows temperatures above the freezing mark. In fact, research has shown ground-level frost can occur at readings even as high as 5 C. This occurs more often in spring, before the ground has warmed. | File photo

When to expect early-spring, late-fall frosts

It’s time to talk about fall frost and the length of this year’s frost-free season. Data for major centres shows a number of locations came close to frost on Sept. 12, and I found 10 to 15 locations did report a light frost on that morning, including my own weather station. The first question I […] Read more