Saturday, June 30, 2012
It's going to be a hot and sunny day for Canada Day celebrations in Winnipeg and southern Manitoba Sunday. Temperatures are expected to hit the 30C mark Sunday afternoon under blazing sunshine and light winds, so don't forget the hat and sunscreen if you're out! Fortunately, humidity levels will be tolerable with afternoon dewpoints in the mid teens expected. By late Sunday, thunderstorms are expected to fire up over southern Sakatchewan, possibly severe. These storms are expected to track across southeast Saskatchewan into southwest Manitoba Sunday night into early Monday, before weakening somewhat as they push into the Red River valley by midday Monday. Additional thunderstorms are possible later Monday over southern Manitoba depending on how much morning activity clears. Sunny and hot weather is expected to return Tuesday before another threat of thunderstorms moves in Wednesday.
Posted by rob at 7:14 PM
Wednesday, June 20, 2012
The unsettled weather of the past two weeks will finally be giving way to a sunnier and drier pattern by Friday into the weekend, offering some much needed time to dry out from the recent damp and dreary weather. Winnipeg has not seen more than 2 rainfree days in a row since June 4-6th, with frequent showers and occasional thunderstorms dumping over 50 mm of rain in the past 2 weeks at Winnipeg airport, and over 70 mm at my Charleswood site. An upper ridge of high pressure is forecast to build over the Prairies over the weekend into next week which will finally take a stubborn storm track north of the southern Prairies, and also allow warmer air to push into our region. With increasing sunshine, temperatures should finally rebound back into the mid 20s over the weekend, with above normal temperatures possible next week.
Posted by rob at 12:46 PM
Thursday, June 14, 2012
A roller coaster weather pattern is expected over the next few days over southern Manitoba as a series of disturbances race across the central continent every 2-3 days. The result will be alternating days of sunshine and unsettled weather with showers and thunderstorms every other day or two. For today, a low pressure system tracking through the Interlake will swing a frontal trough across the Red River Valley, setting the stage for thunderstorm development this afternoon mainly east of the Red River valley, although Winnipeg may see some thunderstorms as well. Some of the storms could be strong with heavy rainfall and hail especially over Southeast MB and closer to the Ontario border. Things will dry out tonight with a nice day shaping up Friday with sunshine and warm temperatures in the mid 20s. Another band of showers and thunderstorms is possible Saturday, again with locally heavy rain rain possible, with a drier day forecast Sunday for Father's Day, and the annual Manitoba Marathon. More unsettled weather is expected Monday into Tuesday.
Posted by rob at 8:53 AM
Sunday, June 10, 2012
|Large hail hits parts of Winnipeg
Saturday evening June 9 2012
|Hailstorm approaches southwest Winnipeg around 9:45 pm
Perimeter at McGillivray (photo Audry V)
|Severe storm at 9:40 pm intensifying south
|Severe storm with hail hitting west end
of city 9:50 pm June 9 2012
Posted by rob at 12:05 AM
Friday, June 08, 2012
Unsettled weather this morning with occasional showers over the Red River valley will give way to a drier westerly flow as the day progresses, with breaks of sunshine this afternoon allowing temperatures to rise into the mid 20s. The dry and benign weather will continue tonight into most of Saturday, before a potential outbreak of severe weather develops over southern Manitoba later Saturday into Saturday night. Warm and humid conditions combined with increasingly favourable upper winds and an approaching frontal system will set the stage for thunderstorms to develop over southern Manitoba late Saturday, with a likelihood of some severe thunderstorms developing giving large hail, strong wind gusts and possible tornadoes. At this point, it's still too early to say when and where thunderstorms will fire up Saturday, but current model guidance is hinting that the highest threat of severe thunderstorms will be over southwest Manitoba along the international border into southern Red River valley. Note though that much of southern Manitoba including Winnipeg will be under a threat of severe storms by later Saturday into Saturday night. Stay tuned on this developing severe weather situation..
Posted by rob at 9:12 AM
Wednesday, June 06, 2012
A trough of low pressure moving across southern Manitoba Thursday is forecast to produce an area of showers and thunderstorms over southwest MB by afternoon, likely spreading into the Red River valley by evening before weakening east of the valley Thursday night. The storms are not likely to be that severe owing to the lack of strong wind shear, however adequate moisture and instability will likely trigger a few strong storms with a slight risk of nickel size hail. More likely, the storms will produce locally heavy rainfall with local amounts of 25 to 50 mm possible, especially over western MB into the Interlake region. This band of showers and thunderstorms will gradually push through the Red River valley Thursday night into Friday, with a gradual drying trend by Friday afternoon. More unsettled weather with showers and thunderstorms is expected Saturday night into Sunday over the RRV, with a potential for some locally strong to severe thunderstorms.
Posted by rob at 7:24 PM
Sunday, June 03, 2012
Scattered thunderstorms this afternoon over Red River valley/Interlake areas... some possibly severe..
A cold frontal trough over western MB will push eastward today tapping a warm and fairly moist airmass ahead of it over the Red River valley and Interlake regions this afternoon. Cloudy skies this morning will give way to some sunshine as the afternoon progresses allowing temperatures to rise into the low to mid 20s. This will set the stage for a line of thunderstorms to develop along and ahead of the trough line this afternoon mainly from the Interlake areas in through the Red River valley including Winnipeg. Some storms may become severe especially through the Interlake where upper winds are stronger, with quarter size hail, strong wind gusts and heavy downpours possible. Storm motion will be to the east-northeast at 30-40 km/h. Clearing conditions are expected by evening as the front moves east of the Red River valley.
Posted by rob at 12:07 PM