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Forecast for the Indianapolis 8 Hour

10/5/2023

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By Doug Schneider
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After a wet day today, the rest of the Indianapolis 8 Hour activities will likely have dry weather, but with cool and breezy conditions.

Today's practice sessions at IMS have been affected by rain, associated with an upper level trough and an approaching cold front. This front will move through the area this evening. 

Behind this front on Friday, nice weather is expected, with mostly sunny skies and breezy conditions through the day. Highs will peak in the upper 60s. On Friday night, another cold front will pass through the area. It may bring some showers to the Speedway, but I expect that it will arrive after 8 pm, after the qualifying session ends at 7 pm. It is possible that some showers could arrive earlier than that, but I think the chance of rain affecting the qualifying is low. 

Behind the second cold front, temperatures will get much colder. Lows on Saturday morning will be in the lower 40s, with daytime highs only in the upper 50s with sunny skies. The northwest wind will continue to bring cool temperatures through Sunday, with lows in the 30s and highs in the 50s. Clouds will increase on Sunday as a weak upper level disturbance crosses the area. 
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Forecast for GT World Challenge at VIR

6/14/2023

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By Doug Schneider
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Overall, the weather looks great for racing as GT World Challenge visits VIR this weekend.

An upper levels disturbance will be dropping southeast out of the central Appalachian region on Friday, and this may spark some afternoon shower and thunderstorms across the Blue Ridge. Some of the storms could get close to VIR, but the chance of having one pass over the track is low, only about 20%. If a storm does pass over the track, the main impact will be lightning, and it should pass through quickly. 

A cold front moves through the area Friday night, and high pressure will build in from the north. This will provide very nice conditions for Saturday and Sunday. Although temperatures will be warm both days, with highs in the mid to upper 80s, the morning lows will be fairly cool, in the upper 50s. Humidity levels will be relatively comfortable too, considering it's June in southern Virginia, as the afternoon dewpoint temperatures will drop into the low 50s on Saturday, and the mid to upper 50s on Sunday. 
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Forecast update for GT World Challenge at NOLA

4/27/2023

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By Doug Schneider
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The timing of a cold front has shifted  with the latest forecast update, bringing a good chance of showers and thunderstorms during the day on Saturday. In my previous forecast, I mentioned that the timing of the front and associated showers looked to be Saturday night, but the models are now showing an earlier timing. So there could be some impacts on the racing on Saturday, mainly during the afternoon. Lightning will be the main threat, but there could some some heavy downpours for a brief period. 

Sunday still looks like a beautiful day for racing, with mostly sunny and breezy conditions and comfortable temperatures.
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Initial forecast for GT World Challenge at NOLA

4/24/2023

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By Doug Schneider
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The weather looks good for Round 2 of the GT World Challenge America season at NOLA Motorsports Park. Friday will be mostly sunny and warm as teams hit the track. On Saturday, expect mostly sunny skies to star the day, with cloud increasing through the afternoon. A cold front will be approaching the area, and is expected to pass through the area Saturday night. There is a small chance of showers with the front, but at this time, it looks like a very small chance that would occur overnight, with no impacts to the action. Behind the front on Sunday, it will be cooler and breezy, with a northwest wind between 10 and 20 mph, gusting between 25 and 30 mph at times.
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2022 Weather and Racing Photo Gallery

12/27/2022

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It's been a pleasure to complete another year of bringing you weather forecasts for your favorite racing series. 2023 will be the ninth year that Scott and I have been running this site, and we are thankful to have Stephen and Harris join us to expand our efforts and keep it going strong. We truly appreciate all our followers who share in our loves of weather and racing. 

Without further ado, here are the best photos from 2022 that combine our two favorite things - weather and racing! ​Hope you enjoy these photos from some excellent photographers. Have a happy New Year, and we'll see you in 2023!
WEC at Bahrain, by TF Sport
Fog at Bathurst 12 Hour, by @Bathurst12Hour
Christian Lundgaard at Indy GP, by Jacob Clouse (@JacobCMedia)
F1 at Silverstone, by Chris Willison
Sunset at the Indianapolis 8 Hour, by J. Douglas Boles (@jdouglas4)
Kyalami 9 Hour, by Mercedes-AMG Motorsport (@amgmotorsport)
Lightning at Indy GP, by Dream Digital
IMSA Prototype Challenge at Daytona, by Michelin Racing (@MichelinRaceUSA)
North Wilkesboro sunset, by @NWBSpeedway
Rainbow at Carolina Speedway, by @RacingAmerica
Rolex 24 sunrise, by Michael Goodwin
Rolex 24 sunrise, by Beaux Barfield
Rolex 24 sunrise, by Sideline Sports Photography
Sebring sunset by Mark Urban
Snow at Circuit Spa, by @CircuitSpa
Snow at IMS, by @IMS
Ultimate Cup Series at Circuit Paul Ricard, by Erwin Seite for @GTxReport
Rainbow at VIR, by @VIRnow
IMSA at Road America, by Jose Mario Dias
Bathurst 12 Hour by Audi Sport
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Thursday update for Kyalami 9 Hour

2/3/2022

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By: Stephen McCoy
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Not much change in the forecast since the initial post for the Kyalami 9 Hour. A cold front is still expected to move through the region on Friday, bringing a likely chance for showers and/or thunderstorms, especially during the afternoon and evening. In addition, winds will increase on Friday with some gusty conditions present as well, though stronger winds will move in behind the front on Saturday. Saturday will also see a drop in temperatures, with highs only in the low 70's F (low 20's C). Scattered showers may be present in the area on Saturday, though precipitation totals will be much less than from Friday.
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First Look at the Indianapolis 8 Hour Forecast

10/11/2021

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by Scott Martin
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A cold front will be working through the area on Friday that will bring a moderate chance of showers during the morning hours, and with the heating of the day, more showers and a few thunderstorms are expected to develop. Unfortunately, those higher rain chances look to come during the Downtown Speedway Parade. Skies will be mostly cloudy to overcast where there is no rain. Temperatures will start off in the lower 60s at the start of the day and will warm to just shy of 70 degrees for the daytime high. Winds will be out of the southeast to southwest at 5-10 mph. Chance of rain increases from 40% to 60%.

The cold front with the associated surface low will be slightly just to the east of Indiana on Saturday morning that will keep clouds and a small chance of a passing shower in the forecast during the morning hours. Once we get into the afternoon, skies will become mostly clear as clouds will be diminishing and rain chances dissipate. However, winds will be breezy out of the northwest, averaging 5-15 mph with gusts up to 25 mph at times. Temperatures will be cool throughout the day, starting off in the mid-50s and only rising into the upper 50s for the high. Chance of rain is around 30% to start, with chances decreasing throughout the morning.

Sunday will be a much brighter day at IMS as skies will be mainly sunny, but temperatures will remain on the cool side. A little breeze will make those temperatures feel even cooler at times as winds will be averaging 5-10 mph out of the west with the potential for gusts up to 20 mph. Temperatures will start off in the upper 40s when the gates open and will only climb into the lower 60s for the daytime high.
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Forecast update for GT World Challenge America at Watkins Glen

9/16/2021

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By: Stephen McCoy
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Conditions for this weekend at Watkins Glen have remained mostly as expected, with a shift of precipitation from Friday to Saturday. A surface low pressure system located off the Atlantic coast will cause winds to be largely from the south to southeast on Friday, bringing moisture off the ocean and resulting in mostly cloudy to overcast conditions. The increased moisture may also cause a slight chance for isolated showers in the region, especially in the afternoon. On Saturday, a cold front extending south from a surface low located over Canada is expected to move through the region, bringing a higher chance for precipitation during the afternoon. Winds behind the front will shift to the west to northwest, cooling temperatures into Sunday with cloud cover decreasing through the day as drier air moves in.
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