Day 8 of Tulsa, OK (KTUL)

As expected, ideal radiational cooling led to a low all the way down to 38F last night, and full sunshine led to a high of 75F this afternoon, actually cooler than expected and areas off to the west which had a bit more of a downslope and less of an inversion aloft. Southerly winds gradually increased this afternoon to a maximum of 12 kt so far, also lower than expected. I suppose the cooler, more stable air was a little more persistent, with a bigger contrast to areas off to the west, than expected. Some southeasterly wind will prevent ideal radiational cooling tonight, but it appears that winds being light enough with an easterly component will prevent the warm downsloped air to the west from reaching Tulsa, instead allowing a deepening inversion layer and still decent radiational cooling with winds <10 kt. Sunny skies again tomorrow and winds shifting to south-southwesterly, bringing some of the downslope warmed air into Tulsa, will lead to much warmer temperatures than today, with a much deeper boundary layer. Winds will become quite strong due to a strong low-level jet and sunshine mixing down the winds from aloft.

 

Source: PivotalWeather