Reading Time: 3 minutes What turns a regular thunderstorm into a severe thunderstorm, or occasionally, into a thunderstorm that you truly remember? First, there is a hot humid air mass in place, the air a few thousand feet up is very cold, providing for good lift, and there is a strong jet stream overhead to provide venting at the […] Read more
The ingredients for a severe summer storm
Air temperature and movement determine whether it will be a storm to remember
Opinion: Why climate change isn’t always to blame for extreme rainfall
Warm air holds more moisture, but not all catastrophic rain events are due to a warming globe
Reading Time: 3 minutes Extreme rain and floods can trigger a flood of another sort — claims that climate change is to blame. But these claims are not always well founded. In our new paper in Nature Geoscience, we discuss what can and can’t be attributed to climate change after extreme rain events. We use the floods of early […] Read more
Updated prairie forecast: unsettled start as sub-arctic high builds in
Issued July 26, covers July 26 to August 2
Update: A low tracking through central prairies is a little weaker than expected. This will result in less precipitation with showers, thundershowers, and storms being less widespread. Another issue is the smoke which can be difficult to predict. Areas with smoke we see cooler than expected daytime highs. An upper ridge that brought plenty of […] Read more
Drought and infestation woes grow throughout province
Special Areas is latest jurisdiction to declare agricultural state of emergency
Reading Time: 6 minutes Grasshoppers have been chewing their way through hay and other crops all over southern and central Alberta. But in some areas, even grasshoppers have nothing to eat in dry pastures and hay fields. That’s the case with southeast Alberta rancher Brad Osadczuk. And he’s not alone. “I think grasshoppers are looking for green vegetation and […] Read more
Prairie Forecast: Summer heat to build back in
Issued July 19, covering July 19 to 26
It looks like the overall weather pattern is going to undergo another shift. After nearly two weeks of unseasonably cool and unsettled weather over the eastern half of the Prairies, with near-average conditions over the west, it looks like more typically summer weather will move back in. The massive area of low pressure that spun […] Read more
Prairie Forecast Update: Low pushes southeast instead
The area of low pressure that was predicted to develop over central Alberta on Monday, July 17th still looks on track to develop. This will mean clouds and showers over north-central regions of Alberta late on Monday and into early Tuesday. There may be some thunderstorms overnight Monday over south-central regions. This low was originally […] Read more
Prairie Forecast: Large Hudson Bay low dominates
Forecast issued July 12, covering July 12-19
As the weather models correctly predicted, a large and extremely strong area of low pressure formed over Hudson Bay during the last forecast period, bringing the expected cool and unsettled weather to the eastern half of the Prairies. Over the western half of the Prairies a weak upper-level ridging brought, for the most part, sunny […] Read more
The fine balance of soil moisture
It’s a complex interplay that will always require rainfall in the semi-arid Prairies
Reading Time: 4 minutes Spring has been warmer than usual this year, making rain even more important. In the semi-arid Prairies, soils that hold some of winter’s meltwater may give emerging crops a good start but the finish is up to the water delivered by seasonal rainfall. Crop physiology depends on it. “Water is the key ingredient when it […] Read more
Prairie Forecast: Big change in weather pattern
Issued July 5, covering July 5-12
Most people have been saying that June felt like July and the weather statistics agreed. Well, if the weather models are correct, it’s looking like July will feel more like June — at least for the next forecast period. Here is the big picture before we dive into the details for each of the three […] Read more
Dry, hot Canadian summer expected
Normal precip expected for Ontario, Quebec
MarketsFarm — Warmer-than-normal temperatures are expected across all of Canada for the next three months, with average precipitation in most of the agricultural areas of the Prairies. That’s according to the latest long-range seasonal forecast from Environment Canada, released Friday. The government department calls for a 50-70 per cent chance of above-normal temperatures from July […] Read more