Racecast Weather - Your Source for Race Weather Information
  • Racecasts
  • Radar
  • 2018 Schedule
  • Links
  • Bios
  • Contact

Thursday forecast update: Indianapolis 500

5/21/2015

0 Comments

 
By Doug Schneider
Picture
There's good news for the Indy 500 forecast update this morning - there has been a slight change for the better with the latest forecast data,, with the trend for the approaching rain on Sunday being slower. The chances of a dry race are looking better.

An upper level trough will be exiting the region today. The clouds from this trough will gradually be decreasing through the day, with some sun peeking through by the late afternoon. High pressure from the surface through the midlevels of the atmosphere will be building over central Indiana tonight and Friday. Weather for Carb Day and Legends Day continue to look absolutely perfect, with plenty of sunshine and highs in the lower to mid 70s. Clouds may be be increasing Saturday afternoon as a low pressure system develops over the Plains. 

The models are trending slower with the development of the low pressure system over the Plains, and are keeping the high pressure ridge over Indiana a little longer than previous models runs. The chance of rain on Sunday appears to hold off until the afternoon, and the majority of that rain chance will probably be late in the afternoon after the end of the race. Although I have a 40% chance of rain on Sunday (covering 8 am to 8 pm), I would put the chance of rain during the race at only 20%. A mix of clouds and sun is expected to start the day, with clouds becoming predominant by the afternoon. This should keep high temperatures in the 70s. 

Follow @Race4caster on Twitter for updates on the forecast.
0 Comments



Leave a Reply.

    Social Feeds


    Instagram

    Instagram

    Partners

    Picture
    Picture
    Picture
    Picture
    Picture

    Authors

    Doug Schneider and Scott Martin are race fans and meteorologists dedicated to providing accurate forecasts and timely weather updates at racing venues around the world. We forecast for IndyCar, Indy Lights, Pro Mazda, USF2000, IMSA, Pirelli World Challenge, World Endurance Championship, and Trans Am Series races, as well as major SCCA and NASA events.


    Categories

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


    Archives

    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
✕