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Initial Forecast for the Japan Grand Prix

9/20/2023

By: Harris Cooley

A frontal boundary bringing a squall line through the region will be passing Friday morning into the early afternoon. The timing of this line will be impactful to the quality of practice session the teams can get. The skies clear and temps stay mild for the rest of the weekend with low wind speeds as well. Track temps could hot in the late afternoons if cloud coverage dissipates, though this should be a manageable variable for the teams. A metric graphic is pasted below...

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Forecast update for IMSA Battle on the Bricks

9/14/2023

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By Doug Schneider

Not much has changed in the expected weather pattern this weekend over Indiana. An upper level trough and a surface cold front are expected to cross the area Saturday night and Sunday. The frontal passage on Saturday night will bring some showers, and the upper trough will linger over the area through Sunday. This trough will create some instability that will produce scattered showers around central Indiana during the day. The chance of a shower at the track is about 30%. Showers are possible any time of the day, but the best chance is in the afternoon. I expect that any showers on Sunday will be light and short-lived, with low impacts on the racing. I don't expect any delays or red flag periods due to rain or lightning.

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Initial Forecast for the Singapore Grand Prix

9/13/2023

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By: Harris Cooley

Low pressure will be keeping wind speeds steady and moisture high. Partly cloudy skies will be present Friday and Saturday with warm temps during the practice sessions. Moderate winds will bring gusty conditions to the streets of Marina Bay which could cause some traction issues.

Sunday will be rainy in the early afternoon with scattered showers rolling through the area. Wind speeds will be low with warm temps. If the rain lingers into the night time, the glare from the puddles as well as slick conditions could make this race quite difficult for the drivers.

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Initial forecast for IMSA Battle on the Bricks

9/11/2023

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By Doug Schneider

A nice weather weekend is expected as IMSA returns to Indianapolis Motor Speedway. A large high pressure system will be sitting over the area to start the event on Friday, providing mostly sunny skies and pleasant temperatures and humidity. Through the weekend, this high will shift east, and a low pressure trough in the mid and upper levels will approach the area on Sunday. This will bring an increase in cloud cover, and possibly a few showers. The good news is that moisture appears limited as the trough moves through on Sunday, so if there are any showers at all, they should be light and short-lived. I don't expect any significant impacts to the race at this time, but I'll keep an eye on it as we get closer to the weekend. Stay tuned for updates through the week.

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Initial Forecast for the Japan Grand Prix

Forecast update for IMSA Battle on the Bricks

Initial Forecast for the Singapore Grand Prix

Initial forecast for IMSA Battle on the Bricks

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