Sure, here is a more detailed paraphrasing of the text:It is unusually warm and dry in parts of Eastern Canada due to a powerful summer-like ridge of high pressure over the region.

It is not common for the shores of Hudson Bay to be warmer than the palm-lined streets of Los Angeles, but that is the current situation as a strong ridge of high pressure dominates the weather in Eastern Canada this weekend.

Temperatures in far northern Ontario are more than 10 degrees above the seasonal average for mid-September, bringing warmth that is typically found in vacation spots much further south.

This unusual weather pattern is caused by a phenomenon known as a Rex block.

A Rex block occurs when a ridge of high pressure gets stuck north of a center of low pressure, effectively locking the weather pattern in place for several days.

Areas under the low pressure experience cooler and unsettled weather, while regions under the high pressure ridge enjoy above-seasonal temperatures and little precipitation.

This weekend, the upper-level low is positioned over the western United States, while the heart of the high pressure ridge is spread over Ontario.

As a result, the western U.

S.

is experiencing below-seasonal temperatures and unsettled weather, while much of Canada is enjoying unseasonably warm conditions and clear skies.

On Saturday, the daytime high in Fort Severn reached 29.

6°C, which is 20 degrees above the seasonal average for this time of year.

Moosonee will continue to see temperatures in the mid to upper 20s over the next seven days due to the persistent high pressure ridge over Eastern Canada.

This warmth in northern Ontario, northern Quebec, and up into Nunavut is in stark contrast to the cooler conditions south of the border.

On Monday, Moosonee's daytime high will be 5 degrees warmer than Los Angeles.

This blocking pattern will also result in a significant lack of rain in southern Ontario for the next week and beyond.

Toronto is likely to experience the longest stretch of dry weather this year, potentially going 11 full days without any rain.