JAMESTOWN- The calendar may read “Autumn”, but Mother Nature is still stuck in Summer.
An upper-level High remains centered over Western New York, which will continue to bring ample sunshine and warm temperatures to our region for Sunday.
The center of the High begins to shift off the East Coast on Monday, but in the wake of that, a strong wave of ridging (an area of high atmospheric pressure), will keep Western New York ridged between 587 and 588 Decimeters in the 500 millibar level of the Atmosphere (the level where weather systems begin to follow the wind pattern). This will keep the mid-Summer warmth in place through mid-week. We will have a very good shot of breaking record highs on Sunday and Monday.
The record for the date on Sunday in the city of Jamestown is 83 degrees, set in 1961. The forecast High temperature for Sunday is 87 degrees. The humidity values will also begin to come back up again, which will make the air feel even hotter, possibly approaching a “Feels Like” temperature of 90 degrees on Sunday. Likewise on Monday, the record is also 83 degrees, set in 1961, and we will be flirting with actual air temperatures near 90 degrees, with “Feels Like” temperatures in the lower 90s.
Keep in mind that all official weather observations and weather records are kept at the Jamestown/Chautauqua County Airport, just north of the city. It should also be worth mentioning that we have not “officially” hit 90 degrees once this summer. Now that we are into Autumn, we should normally see temperatures in the upper 60s this time of year, but Summer is making one last run, and could possibly give us one 90-degree day before it’s all set and done.