US and Canada weather forecast today, July 10: Pattern change brings temporary heat relief to Great Lakes as hot temperatures intensify in Southwest,

US and Canada weather forecast today, July 10: In the US, a shifting jet stream pattern into the weekend will bring temporary heat relief to the Great Lakes as hot temperatures intensify toward record levels in parts of the Southwest and Plains. Meanwhile, in Canada, the hot temperatures continue to blast Toronto as Environment Canada issues air quality statement.
July 10, 2020 | 08:35
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US Weather Forecast

An area of high pressure aloft is bringing hot temperatures to the Great Lakes right now; however, it is expected to give way to a southward plunge of the jet stream by this weekend which should knock down temperatures several degrees in many cities as well as lower humidity levels. Meanwhile, another area of high pressure in the upper atmosphere will amplify from the Southwest into the Plains, where an extended heatwave is expected to develop, according to the Weather Channel.

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Photo: The weather channel

The Great Lakes have been in the midst of a prolonged heatwave which brings highs in the 90s to many cities. It is reported that Buffalo tied its record of consecutive seven days of 90-degree heat on Thursday and Wednesday marked the sixth consecutive day the western New York City experienced temperatures in the 90s.

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Photo: The weather channel

The jet stream is forecasted to usher in at least some modest relief from the hot and humid weather. In Detroit, highs of the mid-90s will give way to afternoon readings in the 80s during the weekend. While Buffalo and Cleveland might see highs drop from the 90s during the past several days to the lower 80s over the weekend. Nevertheless, this drop in temperatures may be only short-lived and the heatwave is likely to return to the Great Lakes in mid-July, reported the latest outlook of the NOAA's Climate Prediction Center.

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Heat alerts Photo: The weather channel

The National Weather Service (NWS) has given the heat warnings from southern and western Arizona into southern Nevada and southeast California, consisting of Las Vegas and Phoenix. On Friday (July 10), these regions are expected to suffer from dangerously hot conditions and it may extend to next Monday.

The hot weather will also sweep the Central and Southern Plains. Heat advisories are now in places of Dallas, El Paso, Oklahoma City, and Amarillo. Daily record highs could be broken in this heatwave, especially this weekend, from the Desert Southwest into parts of New Mexico, Colorado and Texas added NWS.

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Forecast Heat Index Saturday Photo: The weather channel

Overnight lows will not bring much relief as low temperatures will be 5 to 15 degrees warmer than average in the Southwest and Four Corners region. Morning lows in Phoenix are predicted to be around 90 degrees; whilst, Las Vegas could experience lows in the upper 80s, this weekend into early next week.

Canada Weather Forecast

Ontario

The province is experiencing a consecutive streak of July days above 30°C. Presently, a ridge of high pressure looks to be the dominant weather player in Ontario for the coming days and into the weekend bringing temperatures of around 8-10 degrees above seasonal normals. Daytime highs across the province will be hovering around the 30-degree mark, with the humidex making it feel over and above this -- close to or above 40 in some places, according to The Weather Network.

Ottawa

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The weather forecast in the next five days in Ottawa Photo: Canadian weather

Toronto

It is expected to be sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers late in the afternoon and also the risk of a thunderstorm late in the afternoon. Wind becoming south 20 km/h late in the morning. The Humidex is 43 and the UV index is 9 or very high. At night, there may be partly cloudy with a 30 percent chance of showers in the evening and after midnight and a few showers beginning overnight. Wind south 20 km/h becoming light in the evening.

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The weather forecast in the next five days in Toronto Photo: Canadian weather

It is likely to be sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers late in the afternoon. Besides, there may be the risk of a thunderstorm late in the afternoon. The humidex is 41 and the UV index is 10 or very high. At night, there is mainly cloudy and 30 percent chance of showers early in the evening. A few showers beginning in the evening.

Vancouver

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The weather forecast in the next five days in Vancouver Photo: Canadian weather

It is likely to be a mix of sun and clouds. The UV index is 8 or very high. At night, there may be few clouds.

Northwestern Manitoba

People living along the Churchill River are being alerted about possible flooding as waters from Saskatchewan rush into northern Manitoba.

Record high flows have been recorded in reservoirs along the Churchill River in Saskatchewan, which will have a ripple effect in Manitoba. It is also reported that Pukatawagan Lake, where Mathias Colomb is situated, might rise by more than two meters by next week. There could be a surge in the next three to five days with levels peaking between Tuesday and Friday next week, according to the MSN.

Western and southwestern Manitoba are still experiencing flood conditions after a record-high 200 millimeters of rain late last month and early in July.

Levels at the Rivers Dam on the Little Saskatchewan River have gone down after a stretch of no significant rainfall there lately, the province said. Levels there are now nearer to the 2014 flood event, added MSN.

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Malie Nguyen