Very little has changed to my NASCAR weather forecast for Texas Motor Speedway. The rest of the day Saturday will be mostly sunny and fair. It will be cool with temperatures only reaching the low-to-mid 60s, and it will also be very windy with sustained winds out of the south-southeast at 15-to-20 mph and gusts up to 27 or 30 mph.
Sunday's weather forecast for the Sprint Cup race has also not changed, there is still a small threat of scattered showers or isolated thunderstorms.
Starting Sunday morning, instability in the atmosphere will begin increase. It's possible that there could be a few isolated showers or sprinkles during the morning, but I expect it to be mostly dry.
As we move into Sunday afternoon, more moisture will be in place and as a disturbance continues to move toward and through north Texas; scattered showers and possible isolated thunderstorms are possible during the Sprint Cup race.
The threat and likelihood is low – that is the good news – but it just takes one storm or shower to cause a delay.
Professionally speaking, I don't see a situation where we have a washout Sunday. It should be mostly dry with the low threat of rain, but there is enough evidence and instability on Sunday that a shower or storm during the afternoon needs to be mentioned.
1 p.m EDT
Nationwide Race –Mostly Sunny, Windy gusts near 25 mph – temp: 63
3 p.m EDT
Sprint Cup Race – Mostly cloudy, chance of a scattered shower or t'storm – temp: 71