Radar is up and running on the Pirelli World Challenge website. Just click the link posted beneath the Racecast Weather logo. I'll also have updates on our Twitter feed.
By Scott Martin I'm still going with what I forecasted yesterday, but I'm adding a slight chance of rain for Sunday as well. A disturbance will be moving through the northeastern United States throughout the day Today. Clouds will start to build in during the late morning hours, and rain chances should increase after 12PM. The track is going to be right on the northern edge of this disturbance, so that is why I'm only going with a slight chance. As this disturbance passes by to the south, it will pull some moisture down from Northern Ontario during the early morning hours on Sunday, and they may persist through 11AM (if they hold together). After they pass through, skies will become partly cloudy and should be great for racing.
Radar is up and running on the Pirelli World Challenge website. Just click the link posted beneath the Racecast Weather logo. I'll also have updates on our Twitter feed. By Doug Schneider Pesky light showers are causing delays in this afternoon's Fast Friday practice session. The rain will be picking up a little overnight, with around a tenth of an inch of rain expected.
The big question is when the chance of rain will end. Group practice sessions are held between 8 and 9 am, with a full field practice from 9 to 10 am. It is possible that there could be a few isolated showers near Indianapolis at those times, so I have a 20% chance of rain at the track on Saturday morning (after 8 am). I do think that any chance of rain will be gone in time for the start of qualifying at 11 am. Clouds will be decreasing through the day, with partly cloudy skies expected by the mid afternoon. High temperatures will reach to around 70 degrees. Winds will be from the north at 10 to 15 mph, and there could be some gusts of 20 to 25 mph. Armed Forces Pole Day on Sunday continues to look good, with sunny skies and temperatures reaching into the mid 70s. Like Saturday, winds will be from the north at 10 to 15 mph. By Scott Martin Up to this point during the week, there really hasn't been any major changes to the forecast for the Pirelli World Challenge at Canadian Tire Motorsports Park. Forecast has really been on point so far, until looking at today's model runs. Saturday could be wet at times, according to the latest run of the NAM4k model run. A disturbance will be moving northeastwardly through the northeastern United States and the extreme southern parts of Ontario on throughout the day on Saturday. Clouds will start to build in during the early morning hours, and rain chances should increase after 3AM. I do not believe the rainfall will be all that heavy, and it will not rain all day. Rain chances should diminish during the late evening hours on Saturday, and skies should be mostly sunny for Sunday. This will be a really close call as the models have the track on the edge of this system. There is a good possibility that this could change and it stays more to the south.
Radar is up and running on the Pirelli World Challenge website. Just click the link posted beneath the Racecast Weather logo. I'll also have updates on our Twitter feed. By Doug Schneider Good news - the forecast for Indy 500 qualifying is trending toward drier conditions and more sunshine.
Practice on Thursday continues to look great, with sunny skies, a high temperature near 70 degrees, and a northeast wind between 5 and 10 mph. The low pressure system that I've been watching for the potential for rain late Friday and Saturday morning is projected to take a track that is farther south than previously shown by the models. This means that Indianapolis will be located on the northern fringes of the area of rain associated with it. In fact, the rain could miss the Speedway entirely. I am lowering my chance of rain down to just 20%, and even that small chance may not come until after 6 pm, after practice ends. I think the odds of a completely dry practice session on Friday are looking good. Any rain that may fall on Friday night will be light, with only a few hundredths of an inch, if anything, and it will be gone by sunrise Saturday morning. After some morning clouds, there will be ample sunshine through the afternoon, but the biggest weather story on Saturday could be the wind. It will be coming from the north at 10 to 15 mph for most of the day, which will create a tailwind on the frontstretch, a headwind on the backstretch, and a crosswind in the short chutes. This could add an interesting twist to qualifying. Sunday looks absolutely perfect, with sunshine all day and temperatures reaching the mid 70s. Winds will still be from the north, but lighter at 5 to 10 mph. By Scott Martin Looking at the forecast models, a high pressure center will be pushing into Canada from eastern Michigan, and this will keep beautiful weather in the area through most of the weekend. A surface low will develop over Indiana and Ohio during Thursday evening through Friday morning, and will be pushing to the northeast into western Pennsylvania by Sunday morning. There may be a few showers that push through during the overnight and early morning hours on Sunday, but should be out of the area by the time the first race goes green. Clouds may hang around for a little while during the morning, but should clear out by the afternoon. Afternoon highs throughout the event weekend will be in the low to mid 60s, with overnight lows in the mid 50s on Thursday morning, to the low 50s throughout the rest of the weekend.
By Doug Schneider The excitement builds this week for the 100th Indianapolis 500 as we head toward qualifying. For this week's practice sessions, it looks like Tuesday will have the greatest threat of rain. A front will be draped east to west across Kentucky on Tuesday, and moisture riding up and over that front will lead to periods of showers during the day. I expect that there won't be much on track action on Tuesday. However, Wednesday and Thursday look nice, with a good amount of sunshine both days, and high temperatures between 65 and 70.
A low pressure system will be tracking from the southern Plains to the Ohio Valley later this week, which will bring a chance of rain back into the forecast for Friday and Saturday. The models are in general agreement about this, although there are some differences in timing of the end of the rain chances. As it stands right now, it looks like rain will start to move into the area on Friday afternoon. The best chances of rain appear to be Friday night, as the center of the low pressure tracks northeast along the Ohio River. The end of the rain is uncertain at this time, because one model (ECMWF) holds the upper trough over Indiana and Ohio through the day Saturday and even into Sunday, while another (GFS) has a more progressive upper trough that takes all the rain to the east by Saturday morning. With this uncertainty, I will have a 50% chance of rain on Saturday. I'm going to go with a dry forecast for Sunday, with the expectation that the system will track far enough east by then to take the rain and most of the clouds out of Indiana. But I will qualify that (no pun intended) by saying that there could end up being a chance of rain Sunday if the slower of the models turns out to be correct. The cars will have a little bit of a tailwind on the front stretch both Saturday and Sunday, with winds from the north at 5 to 10 mph. Check back here and on our social media feeds on the right for forecast updates through the week. By Scott Martin. A strong cold front has swept through the area on late Saturday afternoon to early evening, and will bring very chilly area to the area on Sunday, along with gusty winds. This will also bring along with it scattered rain showers, possibly mixed with a few snow flurries. There could be a slight chance of some thunder to occur, but highly unlikely. Highs will only reach the mid 40s, with early morning temperatures in the mid 30s. Chance of precipitation is 50%. If there is any snowfall, there will be no accumulation. Winds will average 15-25 MPH, with gusts up to 35 MPH possible.
By Scott Martin. Pretty much sticking with the same forecast from yesterday. Showers and a few thunderstorms are likely throughout the day on Saturday. Winds will be gusty at times out of the south, up to 30 MPH at times. Daytime highs will be in the low 60s, with the early morning low in the mid 40. Chance of rain is 100%.
Sunday will start off in the low to mid 30s for the early morning low. There is a slight chance of a mix of rain and snow showers before 7:00AM, but no accumulations are expected if any snow falls at all. After that, skies will remain mostly cloudy with a chance of showers throughout the day. Another windy day, as wind gusts out of the west could reach 35 MPH at times. Afternoon highs will struggle to reach the mid 40s. Chance of rain is 40%. |
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