Last week’s forecast got the general big picture right, but had trouble with the timing and behaviour of the upper low that moved through our region late last week and into the early weekend. For this forecast period it looks like we’ll start off sunny and hot, with a building upper ridge of high pressure
Weather prediction for the week? Warm, with a chance of storms
Issued: Monday, August 10, 2015 – Covering: August 12 – August 19, 2015
Weather forecast predicts slightly cooler-than-average temperatures
Issued: Monday, August 3, 2015 – Covering: August 5 – August 12, 2015
While this summer’s weather hasn’t been the easiest to figure out, the weather models have been doing a pretty good job of getting the big picture right. This was the case once again for last week’s forecast as the upper low stalled out over Hudson Bay as expected, and brought cooler air and afternoon clouds
General weather pattern remains the same
Issued: Monday, July 27, 2015 – Covering: July 29 – August 5, 2015
Last week’s forecast played out pretty close to what was predicted, with the only exception that we didn’t really see much of a cool-down last Friday. It does look like we’ll see overall temperatures cool down a little during this forecast period as the general weather pattern undergoes a bit of a change. This is
Instability and vorticity: The ingredients that make a tornado
Since they can’t get inside to measure, scientists aren’t completely sure how funnel clouds and tornadoes form
So far this month weather conditions have been fairly good for thunderstorms to develop with plenty of warm, humid air around. This week, we’ll 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
General weather pattern remains the same
Issued: Monday, July 20, 2015 – Covering: July 22 – July 29, 2015
The overall weather pattern doesn’t look like it will change much during this forecast period. We’re currently in a pattern that has a moderate ridge of high pressure over central North America, with this high extending northwards to about the central Prairies. To our east and west are troughs of low pressure. The western trough
Temporary cool-down next week?
Issued: Monday, July 13, 2015 – Covering: July 15 – July 22, 2015
Last week’s forecast didn’t play out exactly as the weather models predicted, but that was not unexpected with the slack flow across our region. For those living in the south, the smoke cleared out for the most part, a little earlier than expected, and a slow-moving upper low allowed very warm and humid air to
A slight chance of thunderstorms
Issued: Monday, July 6, 2015 – Covering: July 8 – July 15, 2015
Last week’s forecast played out pretty much as expected, with an area of low pressure pushing through a cold front, which brought a fairly wide outbreak of thunderstorms on Saturday and Sunday. Cooler temperatures moved in to start this week, which brought some relief from the warm and humid conditions. A typical slack and muddled
The old weather pattern returns
Issued: Monday, June 29, 2015 – Covering: July 2 – July 8, 2015
Our overall weather pattern seems to have slipped back into the same general pattern that prevailed for much of the winter and spring. That pattern had a persistent ridge of high pressure over western North America and a trough of low pressure over eastern regions. We were stuck between these two main features and our
Mix of sun and scattered thundershowers
Issued: Monday, June 22, 2015 – Covering: June 24 – July 1, 2015
This forecast period is starting off much like the last one. The general flow of the atmosphere is fairly zonal, which means a strong west-to-east flow. Sometimes it’s coming a little out of the northwest, which results in slightly cooler conditions, and sometimes it veers a little southwest, which means warmer weather. The trouble is,
Weather forecast period sees Prairies stuck between storm tracks
Issued: Monday, June 15, 2015 – Covering: June 17 – June 24, 2015
The general weather pattern hasn’t changed much since the last forecast. We are still stuck in a split flow, with the northern stream across the central/northern Prairies and the southern stream across the northern U.S. As systems move along both of these tracks and interact, the split flow will sag slightly southward or drift a