Indianapolis 500 weather forecast: Track dry for start, rain chances down

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INDIANAPOLIS — As the green flag approaches for the 103rd Indianapolis 500, it’s been clear skies Sunday at Indianapolis Motor Speedway.

Despite a forecast for rain early Sunday morning, storms skirted north of Indianapolis and its famous 2.5-mile track, which has remained dry since a brief shower Saturday afternoon.

The chance of rain at the start of the race is down to less than 20% (according to the wunderground.com site as of 10 a.m. Sunday), and the forecast seemed decent until 5 p.m. when the odds of precipitation rose to 78%.

The race will start at12:45 p.m. ET and should have a long enough window for a full 500 miles. The race would be official after completing 102 of 200 laps.

With Indiana on the western edge of the Eastern Time Zone and a 9:02 p.m. sunset on race day, Indianapolis Motor Speedway president Doug Boles said the green flag probably could be held as late as 6 p.m. if a worst-case scenario of bad weather hits.

THE 103RD INDIANAPOLIS 500: Click here for how to watch

“We ran the NASCAR race (in 2017) almost right up to sunset,” Boles said. “The challenge of getting closer to sunset is just getting people out when it’s still light. The race itself is more than 2 hours and 40 minutes so you have to back-time yourself.

“We’ll sit down with IndyCar over the next 24 hours and at least have that in the back of our mind. If there’s a window to get it done, our intent would be get it in Sunday, so we would want to go as late as we could.”

Boles said National Weather Service representatives are on site this weekend to help with forecasting. Regardless of if there still is a threat of rain, the track will start the race on time as long as the surface is dry.

“I can’t imagine we’d postpone the start because we think it might rain,” Boles said. “If it’s not raining, we’re running the race.

Boles said track officials are monitoring Sunday’s weather daily but won’t discuss any potential contingency plans until Saturday night. Regardless of whether it’s raining Sunday morning, some pre-race ceremonies likely will remain in place.

“It’s hard to speculate on what’s going to happen,” he said. “It’s likely Sunday morning will be the first time that we have any definitive statement on what we think is going to happen. Instead of giving you information that we don’t know what it’s going to be like, I’d rather wait until that Sunday when we see the conditions, and we’ll let you know.

“Obviously, if it’s raining, then we’ll have to decide what the next steps are.”

Boles said Indiana weather traditionally is unpredictable, noting that qualifying was completed last Sunday despite predictions of a complete washout.

“Last year the prediction was it was going to rain on race day, we got up next morning, and it was perfect,” Boles said. “It just changes so rapidly around here.”

Should it rain, IndyCar officials will make every reasonable attempt to run the Indy 500 on time,. The Indianapolis Motor Speedway also recently used a new sealant on the track surface which makes it quicker to dry the racing surface.

During the previous 102 runnings of the Indy 500, there have been 12 impacted by rain: three complete postponements; two partial postponements and seven shortened races.

So what happens if it does rain? Some options:

Rain-shortened race

The Indy 500 could turn into the Indy 255. If more than 255 miles (102 laps) are completed in Sunday’s race, the race can be deemed official. If the race is called, driver’s finishing positions are based on their position in the race at the time of the caution flag for rain.

The Indy 500 has been shortened by rain only seven times, most recently in 2007. The race was stopped nearly three hours because of rain on Lap 113 and was declared officially over with Dario Franchitti in the lead when rain again hit at the 415-mile mark.

Partial postponement

If fewer than 102 laps are completed Sunday, the race will resume on the next dry day. With most Americans on holiday Monday because of Memorial Day, a partial postponement still might allow for a healthy audience at the track and watching on NBC.

The race has been partially postponed only twice in the 102 previous runnings, in 1967 and 1973.

Complete postponement

Fans shouldn’t worry too much about a complete postponement of the race, as it has only happened three times, most recently in 1997. If rain completely postpones the Indy 500, the race will be rescheduled for the next day with the start time dependent on the forecast.

The 1997 race ran 15 laps on Monday before rain again postponed the remainder of the race until Tuesday. The 1915 and ’86 runnings were postponed until the following Saturday.

NEOM McLaren Racing Formula E and Ian James set to race ahead of electric motorsports’ curve

James McLaren Formula E
NEOM McLaren Racing Formula E Team
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As Formula E enters their ninth season and McLaren Racing is set to compete in last year’s championship winning car, Ian James is passionate about pushing electric motorsports forward at a critical stage as race technology begins surpassing that of the street cars.

Midseason, McLaren acquired the assets of the Mercedes-EQ team as they were already on their way to winning a second consecutive championship. With those assets in place and coming off a successful debut in the Extreme E series, James is set to usher in a new era in electric car racing.

Last week’s announcement that Jake Hughes will join Rene Rast behind the wheel of the NEOM McLaren Racing Formula E Team was the last piece of the puzzle.

McLaren’s electric portfolio is building with the Formula E team coming one year after they entered the Extreme E rally series in 2022 with Tanner Foust and Emma Gilmour. There were a lot of lessons to learn in that series with growing pains during the first three of five rounds. Rounds 4 and 5 were a completely different matter with the team crossing the finish line first in Chile before being assessed a time penalty.

In the final round in Uruguay, they scored an elusive podium.

“McLaren kicked off the season in Extreme E at the beginning of this year, so our first [electric] race took place Neom, actually out in Saudi,” NEOM McLaren Racing Formula E Team Principal James told NBC Sports. “At the time, we were in very early discussions about opportunities with the Formula E team. I actually went out there to meet with Zak [Brown, CEO McLaren Racing] and that was my first taste of Extreme E.

“Since the transition, I joined them in Chile in Atacama Desert, and then Uruguay last weekend. [The second-place finish was] a lovely way to round out the season. The fact that they got that podium. It was very well deserved. It’s a great team and a great series actually. It’s just so very different from anything else. The team’s done a great job in getting set up, and it’s nice now to, we’re trying to use that momentum that we’ve got from Uruguay to get us into next season when it kicks off next year, which will be great. I think we’re mid-March is looking like the first race, so a little bit of time to get things prepped for that.”

 

James McLaren Formula E
The NEOM Mclaren Racing Formula E Team was created through the acquisition of last year’s championship team from Mercedes-EQ. – NEOM McLaren Racing Formula E Team

Synergies exist between the single seater and rally series. Lessons learned about battery power and sustainability in the electric SUV carry over so long as one is mindful of keeping focus on the individual needs and nuances of each series.

Especially now that electric racing technology has caught up, and is ready to surpass, the existing technology that has gone into building street cars.

When internal combustion engines gained the upper hand soon after automobiles were invented, racing paced alongside. The pressure of competition pushed the development of their commercial equivalents. The same has not necessarily been true of electric cars. Street cars were not designed to undergo the same stress as racecars – and that vulnerability showed up on the racetrack.

“Formula E has come along a long way,” James said. “I think one of the most notable developments is in the battery technology. In Gen 1, you had the drivers jumping from one car to another car midrace because the battery technology and capacity simply wasn’t where it needed to be to do the full distance. That obviously changed in Gen 2 and we saw a power increase as well to the 250 kilowatts.

“Now going to Gen 3, we have 350 kilowatts in a smaller battery. But that means that we’re relying on the regeneration of energy and for that reason, we’ve got also the opportunity to regenerate on the front axle as well as the rear axle now. So, there’s all sorts of things that are developing in the right direction.

“In terms of throttle response, actually, we’re now in a situation with electric racing and the motors that it’s instantaneous. And one of the advantages of electric over combustion engine is that the torque is instantaneous as well, so that gives you a lot more room to play with.”

No matter the power source, racing has always been about resource management. Drivers and teams select tire strategies they believe produce the fastest elapsed time and fuel conservation comes into play.

On one hand, electric racing is the same, but there is a critical difference. With the battery as both the power source and an integral part of the engine, there are multiple reasons to manage it.

In electric racing, the brain of the car is the software – and that is where James sees the greatest room for advancement.

“As we are working with our drivers and engineers – and start to look at functionality to improve our efficiency and our performance, that’s something we’ll continue to push because that development is open throughout the season,” James said. “That’s going to be our focus going forward and provides enough of a challenge for us to get our teeth into.

“What’s going to be fascinating is as Formula E continues, is to really look at which areas of development on the car are going to be the most relevant and ensuring that we can focus on those together with the manufacturers so we continue and use the series as a platform for technical development that can then feed back into the road car side of things as well.

“At the end of the day, that’s what motorsports always been, a very powerful tool for, and I see Formula E as no exception.”

James McLaren Formula E
Jake Hughes and Rene Rast were chosen for their ability to drive fast and execute the necessary strategy for energy management. – NEOM McLaren Racing Formula E Team

Selecting Rast and Hughes as McLaren’s Formula E drivers was not simply because they know how to drive fast. James believes both drivers have the mental aptitude to execute energy management strategies throughout the race and squeeze maximum performance.

“As with many other motorsports, you’ve got a certain amount of energy that you’re able to deploy during the race and the management of that energy is absolutely crucial,” James said. “What we’re seeing typically in electric motorsports now is the hardware side of things. The efficiencies that we’re seeing in the powertrain as a whole, they’re getting up to the sort of 96%, 97%, 98% efficiency, so the gains that you get through that further and further become more marginal.”

With much more room for improvement, software is a different matter. To make the best decisions, the drivers need data, and that is where James believes McLaren Formula E will make their greatest impact.

“And then you really switch that focus to the software and that’s where you’re going to see the most the most improvement and the most gains,” James continued. “It’s then using that software to ensure that you’re deploying the energy in the most efficient manner during race, and thereby giving the driver the most performance. And that’s something which is incredibly complicated, but I find it a fascinating area to work in.

“The benefit of being involved in racing is you can really push the envelope in a way that you can’t do on road cars. And I think that that’s where that value comes in. It means that you accelerate the development a lot quicker. We will get ahead of the curve – and we are getting ahead of the curve now – and that will mean that the electric motorsports remain part of the overall development process.

“The key to that is also making sure that the racing’s exciting and fun for the fans. If we can, we can tick both of those boxes, then it’s got a very bright future ahead of it.”