Another Comfortable Afternoon, Heat And Humidity Return Over The Weekend

JAMESTOWN – The cooler weather continues across the region today with lots of sunshine with only a small chance for a rain shower. Typical July warmth and humidity will be making a return as we head into the weekend.

Expect partly to mostly sunny skies through the afternoon today with a limited chance for a spotty shower. The overall chance of anybody seeing a shower is two and ten, about 20 percent. Temperatures will remain below average in the lower to mid 70’s with very comfortable humidity.

With clear skies and light winds, that could be enough to produce some patchy valley fog by morning. While most everybody should bottom out in the lower 50’s, a few spots int he colder pockets may end up in the upper 40’s.

While much of the day tomorrow will be dry with partial sunshine, there is the chance to catch an afternoon shower or storm. Temps will be closer to where they should be but still below average in the mid to upper 80’s.

As we’ve been discussing much of this week, the upper air pattern will be shifting by the end of the end of the week to favor a warmer flow aloft. That will allow July heat and humidity to rebuild across the the eastern half of the county.

Temps will respond to that warmer flow, spiking into the lower to mid 80’s through the weekend with the chance for widely-spaced afternoon and evening showers and storms  Sunday through Tuesday.

On This Day In History: July 24, 2010 – Several tornadoes touched down across the Southern Tier of Western New York between 4 p.m. and 6 p.m.

A radar loop of the wind velocities of those storms seen from the NWS Buffalo Doppler radar. Rotation within the thunderstorm is noted when the red and green returns are close together.

The first tornado of the event touched down west of Mayville at 4:40 p.m, crossed Chautauqua Lake (becoming a waterspout for a brief time), came ashore near Lakeside Park, before finally lifting near Dewittville. Storm surveys conducted by the National Weather Service in Buffalo determined the tornado to be an EF2 on the Enhanced Fujita scale with maximum winds of 125 MPH.

A second EF2 occurred near Randolph around 5:25 p.m, crossing Interstate 86 before lifting near Steamburg. These twin EF2’s caused significant damage to homes and businesses in Chautauqua and Cattaraugus Counties.

Another tornado touched down in the town of Great Valley at 5:25 p.m. that afternoon and was rated an EF1.

The fourth and final tornado touched down near Carrollton just before 6 p.m., crossed Interstate 86 into the village of Allegany, and lifted near St. Bonaventure University. NWS later rated that tornado an EF1.

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