Below-freezing temperatures are forecasted for the rest of this week in Webster City, Iowa, so officials have made the decision to pull the plug early and cancel the 16th Annual Kwik Star Spring Meltdown at the Karl Chevrolet Hamilton County Speedway.

Slated for this Friday and Saturday, April 8-9, at the historic half-mile oval, there are currently no plans to reschedule this event for a later date this season.

Instead, Summit USMTS National Championship presented by RacinDirt racers will now set their sights on the 2nd Annual Dairyland Showdown on Thursday, Friday and Saturday, May 4-6, at the Mississippi Thunder Speedway in Fountain City, Wis.

USMTS Modifieds will pay $3,000 to win Thursday, $5,000 to win Friday and $10,000 to win Saturday as they share the spotlight with the World of Outlaws Late Model Series in what promises to be another standing-room-only event at Bob Timm's picturesque palace of speed.

Visit usmts.com for schedules, points, photos, souvenirs, videos and more. Follow our social media channels on Facebook, Instagram, Twitter and YouTube. Click here to get USMTS news delivered to your inbox.

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USMTS OFFICIAL SPONSORS: American Racer Racing Tires, Beyea Headers, Chevrolet Performance, Compstar, Fast Shafts, FK Rod Ends, Intercomp, K1 RaceGear by Ryan Bowers Motorsports, KS Engineering, KSE Racing Products, Malvern Bank, Mesilla Valley Transportation, MSD Performance, Nitroquest Media, PEM Racing Gears & Drivetrain, RacinDirt, Summit Racing Equipment, Super Clean, VP Racing Fuels, Wrisco Industries.

USMTS PARTICIPATING SPONSORS: ARMI Contractors, Boubin Tire & Automotive, Brodix Cylinder Heads, Hacienda Mechanical, Mel Hambelton Racing, Midwest Wrap Co., Miller Welders, PBM Performance Products, Rancho Milagro Racing, RHRSwag.com, S&S Fishing & Rental, Salty's BBQ & Catering, YouDirt.com.

USMTS CONTINGENCY SPONSORS: AFCO Racing Products, Allstar Performance, BigDeal Car Care, Bryke Racing, BSB Manufacturing, Champ Pans, Deatherage Opticians, Edelbrock, Hooker Harness, Integra Racing Shocks and Springs, JE Pistons, Keyser Manufacturing, Penske Racing Shocks, Performance Bodies & Parts, QA1, RacerWebsite.com, Real Racing Wheels, Simpson Performance Products, Swift Springs, Sybesma Graphics, Tire Demon, Wehrs Machine & Racing Products, Wilwood Racing.

USMTS RACETRACKS: 81 Speedway, Arrowhead Speedway, Belleville High Banks, Casino Speedway, Cedar Lake Speedway, Chateau Speedway, Dallas County Speedway, Deer Creek Speedway, Fayette County Speedway, Hamilton County Speedway, Humboldt Speedway, I-70 Speedway, Lakeside Speedway, Lucas Oil Speedway, Mason City Motor Speedway, Mississippi Thunder Speedway, Ogilvie Raceway, Red Dirt Raceway, Rocket Raceway Park, Tri-State Speedway, Winneshiek Raceway.