LATEST RACEDAY FORECASTS

Darlington Raceway Forecast – May 2021 (NASCAR)

A slow-moving cold front is edging into upstate South Carolina. After this pushes across Darlington early Thursday, an area of low pressure is forecast to develop along the coast Friday morning. This coastal low will bring a chance of showers into the afternoon Friday, clearing out for some too tough to tame truck racing.

Over the weekend, a ridge of high pressure is expected to move across the area, keeping conditions dry – perfect for weekend of racing.

Forecast:

Fri 5/7 – Trucks (GF: 7:39 PM EDT, FS1): Partly cloudy, NW winds, 8-14 mph, 70/54

Sat 5/8 – Xfinity (TV: 1:00 PM EDT, FS1), Sunny, West winds, 15-20 mph with higher gusts, 77/47

Sun 5/9 – Cup (TV: 3:30 PM EDT, FS1), Partly cloudy, SW winds, 15-20 mph with higher gusts, 86/56

All schedule times are EDT.

Updated: Wed. May 5, 8:00 PM EDT

Circuit de Barcelona-Catalunya – Spanish GP (Formula One):

For Friday, a coastal trough is expected, which could bring a risk of afternoon showers. A ridge of high pressure moving across central Europe is forecast to bring a nice day for qualifying. By Sunday, a strong cold front is expected to move across the Iberian Peninsula. The current timing is for afternoon/evening rain.

Fri 5/7: Variably clouds, PM showers, 20/12 (68°F/53°F)

Sat 5/8: Partly cloudy, 23/14 (73°F/54°F)

Sun 5/9 – Spanish GP (TV: 3:00 PM LT/9:00 AM ET, ESPN), Increasing clouds, PM showers, 21/13 (69°F/56°F)

Updated: Wed. May 5, 8:20 PM EDT

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Extended outlooks:

Extended outlooks are generated using the World Climate Service’s proprietary multimodel. RaceWeather works the WCS in bringing their seasonal & subseasonal forecast tools to new markets. If they can help with motorsports, think of what they can do for you! Let’s find ways to work together – Contact us through ChesapeakeAnalytics.net.

Dover (NASCAR): Week of May 10-16: Temperatures: Weak signal for above normal, Rainfall: No strong signal, & Wind: No strong signal

Circuit of the Americas (NASCAR): Week of May 17-23: Temperatures: Weak signal for above normal, Rainfall: Weak signal for above normal, & Wind: No strong signal

Circuit de Monaco – GP of Monaco (Formula One): Week of May 17-23: Temperatures: No strong signal, Rainfall: Weak signal for below normal, & Wind: No strong signal

This forecast is updated twice weekly.

Updated: Wed. May 5, 8:30 PM EDT

Meteorologists

NHRA & IMSA Mark Sweeney

NASCAR, Formula One, & Extended outlook Aaron Studwell, Ph.D.