We aren’t going to travel too far from our previous forecast spot – St. Louis – but depending on your route, we are still two, maybe three states away.
At 154PM, CT, Evansville was reporting a temperature of 84 with clear skies. There was a trough extending at the lower levels from the western Gulf of Mexico, pressing into western Tennessee, which had resulted in some clouds streaming through Kentucky, and occasionally over Evansville. This feature was penetrating a strong ridge in the eastern US, so the trough figured to get snuffed out before it can do anything interesting, particularly around Evansville.
The instability in the Gulf, however, is expect to spread into the southeastern US as high pressure begins to recede away from the mid-Atlantic. A weak trough running along the Canadian border will drape a cold front into the Plains that will be approaching the lower Ohio Valley on Friday. The cold front will pass through southern Indiana late in the day, however the instability rising out of the Gulf will prevent much moisture for reaching the Evansville city streets. While there is a small chance for rain, there is a better chance for increasing winds and an initial dose of autumnal air.
Tomorrow – Partly cloudy, High 92, Low 66
Friday – Increasing clouds and wind with a spot of rain, High 85, Low 68
TWC: Tomorrow – Sunny, along with a few afternoon clouds. High 91, Low 63
Friday – Partly cloudy. A stray shower or thunderstorm is possible. High 86, Low 67
AW: Tomorrow – Partly sunny and hot; caution advised if doing strenuous activities outside High 93, Low 64
Friday – Times of clouds and sun with a thunderstorm in one or two spots; not as hot High 86, Low 65
NWS: Tomorrow – Sunny, High 91, Low 65
Friday – A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, High 89, Low 67
WB: Tomorrow – Sunny, High 86, Low 68
Friday – Mostly sunny, High 86, Low 70
WN: Tomorrow – Mostly sunny, High 89, low 66
Friday – Partly cloudy with scattered showers and isolated storms, High 86, Low 68
CLI: Tomorrow – Sunny, High 92, Low 66
Friday – Thunderstorm, High 89, low 67
Forecasts for Friday are an interesting study in “when do you think the front will arrive?” Later arrival suggests warmer highs on Friday. The satellite for the region shows a band of clouds spiraling all the way north from the Gulf.