UPDATE AT 9.30 PM AND:
NASCAR officials tried, but Mother Nature refused to cooperate to stop the rain around Iowa Speedway on Saturday night.
As a result, the NASCAR M & Ms 200 Gander Outdoors Truck Series has been postponed to Sunday. The green flag will fall shortly after noon (Eastern Time) (will be televised on FS1 and on the radio on Motor Racing Network and SiriusXM NASCAR Radio.
The qualifications for Sunday's Xfinity Series race are scheduled at 2:35 pm. ET (FS2, no radio), while the CircuitCity.com 250 Xfinity race will take place shortly after 5:30 pm. AND (NASCAR MRN / SiriusXM radio, FS1).
UPDATE AT 9 PM AND:
The start of the M & Ms 200 race that night, the NASCAR Gander Outdoors Truck Series, at the Iowa Speedway was delayed due to weather conditions.
However, heavy rains have stopped and drying efforts on the trail are underway.
We will continue to monitor the situation and inform you of updates as soon as they are available.
UPDATE AT 7:15 PM AND:
After the bad weather pushed NASCAR officials to shorten the first of their two trials of the Xfinity series at Iowa Speedway, Xfinity's second and final workout has now been canceled.
NASCAR still hopes the weather will be good for the upcoming NASCAR Gander Outdoors Truck M & Ms 200 Series series tonight. The green flag should fall at 20:30. AND (FS1 and MRN / SiriusXM).
Qualifiers for CircuitCity.com's 250 Xfinity race on Sunday are still scheduled for tomorrow at 2pm. HE, with the green flag set for shortly after 5 pm ET. The weather forecast looks good, according to wunderground.com.
We will keep you informed of any changes as they become available.
For the second time today, the weather has shut down the NASCAR Gander Outdoors Truck Series and NASCAR Xfinity Series at the Iowa Speedway.
Earlier this afternoon, rain forced the cancellation of qualifying for tonight's M & Ms 200 Truck Series race. The weather also delayed the start of the first of two Xfinity practices.
In addition to lightning observed near the racetrack, the area of Newton and surrounding areas, in Iowa, is being watched by a thunderstorm. This prompted NASCAR officials to stop the first Xfinity workout session, which had already been reprogrammed once for 5:30 pm. at 18:25 ET, to shorten with 25 minutes of time remaining.
Harrison Burton was the fastest driver (130.192 mph) in the Xfinity squad before the session was interrupted due to inclement weather.
Christopher Bell (130.112 mph), Austin Cindric (130.063), Noah Gragson (129.977), Cole Custer (129.817), Chase Briscoe (128.935), Zane Smith (128.892), Tyler Reddick (128.834), Tyler Red Hunter Nemechek (128.687) and Justin Allgaier (128,629).
Click here for the results of the first abbreviated practice of Xfinity.
A second Xfinity workout will take place from 7:00 to 7:50 pm, followed by tonight's main event, the Truck Series race at 8:30 pm. AND (FS1 and MRN / SiriusXM). However, meteorological radars to the north and west of the runway do not appear promising at this stage.
We will update as more information about the conditions become available.