First Defense: Strong Thunderstorms Tonight, Cooler Air Arrives Thursday


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JAMESTOWN – It will be an active weather night tonight as pre-frontal showers and storms arrive this evening with the chance a few of them could be strong to severe. We’ll bring in much cooler and refreshing air by by the end of the week.

A strong Cold front lurking back to our west will be moving through overnight tonight bringing a chance for showers and thunderstorms across the region. The NOAA Storm Prediction Center maintains a standard Slight risk, level 2 out of 5, for severe thunderstorms tonight across all of Western New York and Northwestern Pennsylvania.

Based on the newest model guidance, the line of storms will entire the western most areas by around 10 p.m. and continue working their way eastward through the Southern Tier. The last batch of storms with this line should be out of the area by 2 a.m. early Thursday.

Even though this squall line will likely weaken before they enter the area as they cross over the cooler Lake Erie waters and the loss of daytime heating, we are still expecting at least some severe potential with this line. Storms could produce damaging wind gusts, large hail, and heavy rainfall.

Make sure you stay weather aware throughout the overnight and have a reliable way to get warnings. Lows 60 in the valleys, 66 at the Lake Erie shoreline.

After the front moves through, we’ll see a substantial shift in the in the wind flow aloft for Thursday. Cooler and less humid air will surge in from the west northwest bringing our highs down to a much more comfortable 68 to 75 with an early shower than partial clearing.

Friday will be mainly dry with a good supply of sunshine and highs in the mid 70’s.

We’ll tick the temperatures down once more over the weekend with only a small chance for an isolated to sporty shower each day otherwise partly sunny. Highs going down into the lower to mid 60’s.

Another warming trend will take place early next week as temperatures return to the 70’s with a chance for a scattered shower or two both Monday and Tuesday.

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