MANITOBA: Thunderstorm Forecast for Tuesday, May 30, 2023

/

Isolated pop-up storms are possible across much of Southern Manitoba on Tuesday. A few of these storms could become severe with nickel-sized hail and 90 km/h wind gusts in Southeastern Manitoba and parts of South-central along the American border. Another concern is the potential for funnel clouds and maybe even a landspout.

Landspout: A landspout is a type of tornado that forms under a weak thunderstorm. Unlike traditional tornadoes, which develop from supercell thunderstorms and are associated with a rotating updraft called a mesocyclone, landspouts form from non-supercell storms and do not have a mesocyclone. These tornadoes are generally weaker and shorter-lived than their supercell counterparts but can still pose a threat to property and life, with wind speeds occasionally reaching up to 160 km/h.

MANITOBA: Thunderstorm Forecast for Tuesday, May 30, 2023

/

Non-severe thunderstorms are possible across much of Eastern and Central Manitoba on Tuesday afternoon and evening. The severe risk appears minimal, but the strongest storms will be right along the Ontario border in Southeastern Manitoba. We may consider upgrading to an isolated severe risk in the area with our morning update after looking at the latest data.

MANITOBA: Thunderstorm Forecast for Monday, May 29, 2023

/

Widespread thunderstorm activity is expected across Southern Manitoba during the afternoon and evening on Monday. While these storms should remain non-severe, they could produce funnel clouds and maybe even a landspout with the strongest risk in Southwestern and South-central Manitoba.

Landspout: A landspout is a type of tornado that forms under a weak thunderstorm. Unlike traditional tornadoes, which develop from supercell thunderstorms and are associated with a rotating updraft called a mesocyclone, landspouts form from non-supercell storms and do not have a mesocyclone. These tornadoes are generally weaker and shorter-lived than their supercell counterparts but can still pose a threat to property and life, with wind speeds occasionally reaching up to 160 km/h.

MANITOBA: Thunderstorm Forecast for Sunday, May 28, 2023

/

Isolated storms are possible across Western Manitoba on Sunday. A few of these storms may reach severe levels with the risk of 90 km/h wind gusts and quarter-sized hail. An isolated tornado can’t be ruled out, especially around the Swan River area where the environment is the strongest.

MANITOBA: Thunderstorm Forecast for Saturday, May 27, 2023

/

FRIDAY PM UPDATE: No changes to the forecast are needed based on the latest data.

There is a slight risk of severe storms in Southwestern Manitoba on Saturday. Isolated storms are expected to develop over Saskatchewan during the afternoon and may track into the western part of Manitoba during the late afternoon into the evening.

These storms could bring up to 100 km/h wind gusts, toonie-sized hail and an isolated tornado can’t be ruled out. The strongest risk will be primarily right along the Saskatchewan border including Virden, Russell and Roblin as the environment is expected to quickly become less favourable to the east.

MANITOBA: Thunderstorm Forecast for Friday, May 26, 2023

/

THURSDAY PM UPDATE: Based on the latest data, the thunderstorm threat has shifted slightly to the northwest. As a result, the isolated risk for severe storms now extends from Southwestern Manitoba through Dauphin and into the northern Interlake region.

Thunderstorms are possible across much of Southern Manitoba on Friday during the afternoon and evening. Current indications suggest a line of storms could develop stretching from the Southwestern corner of Manitoba near the Saskatchewan border and through the Interlake region. The environment here is favourable for an isolated severe storm with 90 km/h wind gusts, nickel-sized hail and heavy rain being the main threats.

MANITOBA: Thunderstorm Forecast for Thursday, May 25, 2023

/

WEDNESDAY PM UPDATE: No changes to the forecast are needed based on the latest data.

Severe storms are expected to develop across Southeastern Saskatchewan during the afternoon on Thursday and will track into Western Manitoba by the evening. These storms should be weak and non-severe for the most part, but a few isolated storms could produce 90 km/h wind gusts and quarter-sized hail.

The strongest risk for severe storms includes Virdin, Russell, Roblin, Dauphin and Swan River. Non-severe storms are possible through Southwestern Manitoba and into the Interlake region.

MANITOBA: Thunderstorm Forecast for Monday, May 22, 2023

/

Isolated non-severe thunderstorms are expected to track into Central Manitoba from Saskatchewan during the afternoon and evening on Monday. These storms could bring small hail, strong wind gusts and heavy rainfall, however, they should remain below severe levels.

MANITOBA: Thunderstorm Forecast for Wednesday, May 17, 2023

/

Widespread non-severe thunderstorms are expected to track across Southern Manitoba during the late morning and early afternoon on Wednesday. These storms aren’t expected to reach severe levels, however, they could bring strong wind gusts, small hail and heavy rainfall. The storm risk will diminish by the dinner hour as the line of storms moves out of the province.