8/8/2023 0 Comments Jasper weather in september![]() where a 10 yard diameter wide area of corn stalks were completely flattened in a convergent manner. The damage track began southwest of the Heritage Estates near the intersection of North 450 West and Hawthorn Rd. This tornado caused structural damage to one mobile home, and damage to multiple trees and corn fields. One of these convective cells produced a tornado approximately 5 miles northwest of Wheatfield, IN near the Oak Heritage Estates. Several bands of rain moved through northeast Illinois and northwest Indiana with one band eventually producing small areas of convective cells that moved through northern Jasper County Indiana. In fact, Grande Prairie and Edmonton recorded their hottest-ever August this year.During the afternoon hours of Thursday September 4, the remnants of what was once Hurricane Gustav continued to move northeast passing over far southern Lake Michigan during the evening hours on September 4th. All of those 12 sites were in the top five for their hottest-ever month of August on record. 10 inched close to that mark at 34.0 C.ĮCCC calculates in-depth climate statistics for major sites across the country, including 12 in this province, though not including Jasper. ![]() July 28 was this summer’s hottest day at 34.9 C while Aug. “For daily record-high temperatures, there were six days this summer where Jasper did set a new record temperature: only one in July and then five in the month of August,” Fougère said. While none of the temperatures even came close to the town’s all-time high temperature of 41.2 C (from June 30, 2021), Jasper did break its record of number of days with +30 C temperatures more than four times over. 3 also came in over that mark, although Fougère said that this isn’t that unusual especially when considering the kind of summer that Jasper has had. That large starter wave then rippled in periodic shorter two- or three-day bursts of +30 C temperatures over the subsequent weeks.įurthermore, Sept. “We ended up with this persistent high pressure bringing a lot of consistent warm air especially for the month of August.”Ī look at the full dataset for Jasper’s summer weather shows that the high heat arrived in one nearly week-long wave starting on July 26. “Although you’d see the odd little ripple through, it didn’t result in a large-scale change in the weather pattern,” Fougère said. Instead, it saw this persistent large-scale ridge covering most of the western half of the continent. That low-pressure system is when Alberta tends to see severe thunderstorm activity as a lot of that built-up heat and moisture that was trapped under the ridge gets released. “Typically, we see that last three to five days, and then you’ll see a low pressure system come through.” “The heat builds day after day,” Fougère said. That means clear skies while no thunderstorms can form during this period. “What we saw for the second half of July and into August was a persistent, large-scale ridge of high pressure covering most of western North America,” Fougère said.Īlberta typically sees this high-pressure ridge come in, bringing descending air with it over the province. That’s when Alberta entered the pressure cooker. ![]() The summer started fairly cool and wet throughout June, but by the first week of July, the province started to see a pattern change that soon brought long-lasting heat Most of Alberta experienced below-normal temperatures for May and June.
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