Every time there is a Colorado low in the forecast, I note that we need to keep an eye on them. Last week’s Colorado low was a classic example.
Initially it looked like it would stay to our south, but shortly after I sent the forecast, the weather models began inching it northward. Unless you like spring snowstorms, we actually got off fairly lucky because the storm did not quite get its act together enough to become really big. Nonetheless, some regions in southern and eastern Manitoba received more than 25 centimetres of snow.
For this forecast period, it is finally starting to look like spring, but that doesn’t mean we are out of the winter woods yet. It looks like this forecast period will begin on the mild side after the warm surge of air that pushed in at the beginning of the week. Daytime highs look to be in the 7- to 10-degree range with any snow-free regions a few degrees warmer.
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Our attention turns to another possible Colorado low impacting our region in the Friday-to-Sunday time frame. Confidence in this part of the forecast is very low, as the weather models have been all over the place with this feature. At times, they show mostly snow and at other times rain.
It does look like a good probability of precipitation across our region during this period, with most of it likely falling as rain. Temperatures ahead of this system will be mild, with a cooling trend late in the weekend as colder air works its way into the back side of the system.
How the forecast plays out after the weekend depends on this storm system. If we get more snow than expected, it will be a cool start to the week, mostly rain, and it will be milder.
The models don’t show a big push of cold air behind the storm. In fact, they indicate milder air moving northward as an area of low-pressure tracks across the northern Prairies.
Daytime highs are forecasted to be in the low to mid-teens by mid-week with overnight lows mostly staying above freezing.
Usual temperature range for this period: highs: +2 to +14 C; lows: -9 to +1 C. Probability of precipitation falling as snow: 50 per cent.
