Racecast Weather - Your Source for Race Weather Information
  • Home
  • Racecasts
  • 2023 Schedule
  • Services
  • Contact
  • Bios
  • Links

Friday update for the ABC Supply 500

8/16/2019

Comments

 
By: Stephen McCoy
Picture
Conditions have changed a bit for Saturday with partly cloudy conditions continuing to persist through the day, though with a now slight chance for scattered showers. Recent model output is very mixed on timing of precipitation, but should rainfall occur, totals are anticipated to be less than 1/10 of an inch. This is primarily due to the models predicting less energy in the atmosphere: CAPE values being predicted under 1000 J/kg, which is less indicative of convective storms. The cause of this is likely from surface winds out of the southwest instead of the southeast which would have brought more moisture to the region from the Atlantic Ocean. Ultimately, impacts to the track remain low as a result, however a light shower may be enough to stop or prematurely end any of the on-track sessions. Saturated air during the morning near sunrise may result in fog through the region.

On the other hand, Sunday's conditions have remained mostly the same from Wednesday's update, barring the maximum temperature. The models have come to a good consensus of convective precipitation around noon to the early afternoon. Mixed-layer CAPE values from the GFS, NAM, and NAM 3km are all above 1500 J/kg, indicating the increased likelihood of thunderstorms in the region. Temperatures are not predicted to be as high as initially thought due to precipitation cooling the area before the maximum temperature normally occurs. However, dew point temperatures in the low 70's will likely cause heat index values in the low 80's.
Comments

    Social Feeds


    Instagram


    Authors

    Doug Schneider
    Scott Martin
    Stephen McCoy

    Harris Cooley 


    Partners

    Picture
    Picture
    Picture
    Picture
    Picture

    Categories

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


    Archives

    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.