Racecast Weather - Your Source for Race Weather Information
  • Home
  • Racecasts
  • 2025 Schedule
  • Services
  • Contact
  • Bios
  • Links

Wednesday forecast update: Petit Le Mans

9/30/2015

Comments

 
By Doug Schneider
Picture
There Today's weather at Road Atlanta is expected to be cloudy and foggy through the morning, with showers likely to affect the track this afternoon. It is possible that there could be a thunderstorm as well. Around a quarter inch of rain is expected. Highs will be in the upper 70s. 

A cold front will be near the area tonight, and push south of the track on Thursday. The proximity of this front to the track and the presence of an upper level low pressure system will mean that showers are likely again on Thursday. Most of the rainfall is expected to come in the afternoon and evening. For Thursday, another quarter inch of rain will be possible. 

Friday continues to be the day that is most questionable as the weather pattern will be transitioning. The upper level low pressure system will be slow to exit the area, and there will still be quite a bit of low level moisture. This is not a pattern that tends to produce heavy rain. In fact, there may only be a trace of rain or around a hundredth of an inch of rain. This is why I only have a 20% chance of measurable rain. I want to emphasize that the majority of Friday is likely to be dry, and I don't expect that what little rain there is will have much impact. It will be cloudy and fairly cool all day, with high in the upper 60s.

Clouds will be around for most of the day on Saturday, but I do expect that there will be some sunshine to break through the clouds, mainly in the afternoon. The upper level low pressure system should take all the rain east of the area, across the Carolinas. I expect that the race will be dry from start to finish. I do have to mention that the GFS model continues to show a high chance of rain on Saturday. Other models show a low chance. In my experience, the GFS tends to produce too much rain in this type of weather pattern, so I'm leaning toward the drier models. I think there will be too much dry air moving in and not enough lift in the atmosphere to produce measurable rainfall. Temperatures will continue to be a little cool, with highs in the upper 60s, and temperatures by the end of the race around 60.

We'll have our radar link ready to go at the top of the website later today.
Comments

    Social Feeds


    Instagram


    Authors

    Doug Schneider
    Stephen McCoy

    Harris Cooley 


    Categories

    All
    F1
    IGTC
    IMSA
    Indycar
    Le Mans
    MRTI
    NASA
    Outlooks
    Photos
    PWC
    Racecasts
    SCCA
    SRO
    Trans Am
    TUSC
    Verification
    Weather Education
    WEC


    Archives

    May 2025
    April 2025
    March 2025
    February 2025
    January 2025
    December 2024
    November 2024
    October 2024
    September 2024
    August 2024
    July 2024
    June 2024
    May 2024
    April 2024
    March 2024
    February 2024
    January 2024
    December 2023
    November 2023
    October 2023
    September 2023
    August 2023
    July 2023
    June 2023
    May 2023
    April 2023
    March 2023
    February 2023
    January 2023
    December 2022
    November 2022
    October 2022
    September 2022
    August 2022
    July 2022
    June 2022
    May 2022
    April 2022
    March 2022
    February 2022
    January 2022
    December 2021
    November 2021
    October 2021
    September 2021
    August 2021
    July 2021
    June 2021
    May 2021
    April 2021
    March 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    August 2020
    July 2020
    June 2020
    March 2020
    January 2020
    December 2019
    November 2019
    October 2019
    September 2019
    August 2019
    July 2019
    June 2019
    May 2019
    April 2019
    March 2019
    February 2019
    January 2019
    December 2018
    November 2018
    October 2018
    September 2018
    August 2018
    July 2018
    June 2018
    May 2018
    April 2018
    March 2018
    February 2018
    January 2018
    December 2017
    November 2017
    October 2017
    September 2017
    August 2017
    July 2017
    June 2017
    May 2017
    April 2017
    March 2017
    February 2017
    January 2017
    December 2016
    November 2016
    October 2016
    September 2016
    August 2016
    July 2016
    June 2016
    May 2016
    April 2016
    March 2016
    February 2016
    January 2016
    December 2015
    November 2015
    October 2015
    September 2015
    August 2015
    July 2015
    June 2015
    May 2015
    April 2015
    March 2015
    February 2015
    January 2015
    December 2014
    November 2014
    October 2014
    September 2014



Powered by Create your own unique website with customizable templates.