Warm westerly winds prompted a yellow-level wind warning in southern Alberta early Tuesday, with gusts of up to 100 km/h expected through the morning. Environment and Climate Change Canada said, “Strong west winds gusting to 100 km/h will continue this morning. Winds will weaken by this afternoon.”

By 9 a.m., gusts of about 70 km/h had been recorded around Pincher Creek and Lethbridge, while Calgary saw gusts near 50 km/h. Temperatures were also well above seasonal norms: many weather stations around Calgary showed readings of 12 C to 14 C, compared with a typical morning range of 1 C to 3 C for this time of year.

Yellow-level rainfall warnings were issued for the southern B.C. coast. The same weather system was expected to keep drawing moisture toward the Rockies, where rain and mixed precipitation were observed between Highway 1 and Highway 3 in southern British Columbia overnight and early Tuesday. Precipitation was forecast to continue into the evening and early Wednesday.

Light rain was possible on the eastern side of the Rockies Tuesday night and early Wednesday. If the system reached Calgary, however, precipitation totals were expected to be minimal.

A low-riding jet stream was forecast to carry cooler air from west to east across the southern half of the western Prairies on Wednesday and Thursday. Calgary’s daytime highs were expected to reach 13 C on both days, then return to the mid-teens by the weekend. By Monday, highs were forecast to climb back into the high teens to low 20s and remain there until the middle of next week.

Based on reporting by CTV News Calgary.