Weather school: A last look at tornadoes

Weather school: A last look at tornadoes

The weather computer has called for 'kite-flying weather' nearly every day lately

As we move into summer across Manitoba, thunderstorms and, in particular, severe thunderstorms have begun to rear their ugly heads. This week we’ll look at tornadoes, but instead of me rambling on and giving you a technical breakdown of tornadoes — how they form, what to look for, safety, et cetera — I am going to use a series of amazing

Weather school: Funnel clouds and tornadoes

There needs to be a pool of cold air aloft before a cold air funnel can form

This time we’ll continue our look at severe thunderstorms, and specifically, the most deadly part: tornadoes. Before diving into this, there are a couple of weather stories I have to touch on. First, tied into our discussion on thunderstorms, a stalled frontal system across southeastern Manitoba from June 6 to 8 allowed for several rounds of thunderstorms to


It’s believed that when rotating columns of air get squeezed into a narrower shape, wind speeds increase, eventually producing a tornado.

Weather School: What makes storms severe?

Much of our summer rainfall is from typical, rather than severe, thunderstorms

A couple of weeks ago we talked about what it takes to form severe thunderstorms: heat, humidity, lift, and some way to vent the air at the top of the storm. This time we’ll take a look at what takes a severe thunderstorm and turns it into a thunderstorm to truly remember, or maybe forget.

The more water vapour there is in the air, the more potential energy exists to help a 
thunderstorm develop.

Weather school: What creates a thunderstorm?

A large difference in temperature between two areas is needed for a storm to form

It’s thunderstorm season, and while we haven’t seen any big storms so far this year, the heat seems to have moved in, so it is only a matter of time! We are going to begin with the same issue I bring up every year, which is how people mix up weather watches and weather warnings. Basically, when we


Forecast: Storm track setting up to our north

Covering the period from March 4 to March 11

Last issue’s forecast did an OK job. It captured the overall pattern, but was a little off regarding temperatures and overpredicted the amount of snow with a weak area of low pressure. This forecast period looks like it will be an interesting one. Weather models show the main storm track setting up across the central

A man walks through the rubble in the aftermath of Hurricane Dorian on the Great Abaco island town of Marsh Harbour, Bahamas on Sept. 2.

Trying to understand Hurricane Dorian’s power

Dorian did not move like the typical hurricane

As we head into fall, we move into that tough time of the year. You hope for perfect weather conditions, but with the dry year some regions have had, what’s perfect for some will be terrible for others. Recent rainfall is welcome in most pasture and haying areas, but for those wanting to get their


Rathwell received large hail after a chain of storms hit the region Aug. 1.

Hail damage and dry weather hamper grain and forage crops

Looking surprisingly good despite stresses

Severe thunderstorms scattered hail across southern Manitoba on July 31 and mangled a few crops. Crop insurance claims were just beginning to come in on the afternoon of August 1, said David Van Deynze of Manitoba Agriculture Services Corporation. Van Deynze said they were seeing a bank of claims from the U.S. border, ranging up

“Funnel clouds are generally very weak and short-lived and will rarely become strong enough or last long enough to touch down.”

Is that a cold air funnel or a tornado?

Super cell thunderstorms, from which tornadoes usually develop, are tough to predict

In this article, we continue our look at severe thunderstorms, and specifically the most deadly part: tornadoes. What are tornadoes and how do they form? A classic definition of a tornado is a violently rotating column of air that extends from a thunderstorm to the ground, and which may or may not be visible as


Manitoba’s canola stands took a beating with hail in southern Manitoba June 14, but experts are optimistic about the chance of recovery.

Canola dodges the worst of the damage

The canola fields may look grim, but both Manitoba Agriculture and local agronomists from the Canola Council of Canada (CCC) say most fields will recover from a June 14 storm that dropped hail over southern Manitoba. “It almost hit it at an ideal time, because it’s just a visual impact right now,” Justine Cornelsen, CCC

Fields show the aftermath after a devastating hailstorm hit parts of southern Manitoba June 14.

To seed or not to reseed?

Soybeans were among the greatest concern after a June 14 storm dropped up to softball-sized hail on southern Manitoba, but anyone looking to reseed had to look to other options as seeding windows closed

Severe storms June 14 put producers up against the clock recently as hail-damaged fields clashed with looming seeding deadlines. The storm may have forced producers into a shotgun decision on reseeding, Manitoba Agriculture pulse specialist Dennis Lange said during a June 20 Crop Talk webinar. Soybeans were among the largest concerns after the June 14