2025 Chicago Yacht Club Race to Mackinac
Sign up to receive high-resolution GRIB file currents for Lake Michigan.
This is a custom upscaling of NOAA’s LMHOFS model for enhanced resolution:
300 meter horizontal resolution (compared to 1 km standard resolution).
1 hour timesteps.
Includes tidal and wind-driven circulation.
Each day's file covers 48 hours starting at 0:00 UTC.
GRIB files will be uploaded on the mornings of July 17, 18, and 19 2025.
Download a demo GRIB here: https://drive.google.com/file/d/1cUy1eRIEAgqxypZWCx5Kaze-p1uC6oBv/view?usp=drive_link
Note that these GRIB files are several hundred megabytes.
Sign up to receive high-resolution GRIB file currents for Lake Michigan.
This is a custom upscaling of NOAA’s LMHOFS model for enhanced resolution:
300 meter horizontal resolution (compared to 1 km standard resolution).
1 hour timesteps.
Includes tidal and wind-driven circulation.
Each day's file covers 48 hours starting at 0:00 UTC.
GRIB files will be uploaded on the mornings of July 17, 18, and 19 2025.
Download a demo GRIB here: https://drive.google.com/file/d/1cUy1eRIEAgqxypZWCx5Kaze-p1uC6oBv/view?usp=drive_link
Note that these GRIB files are several hundred megabytes.
Sign up to receive high-resolution GRIB file currents for Lake Michigan.
This is a custom upscaling of NOAA’s LMHOFS model for enhanced resolution:
300 meter horizontal resolution (compared to 1 km standard resolution).
1 hour timesteps.
Includes tidal and wind-driven circulation.
Each day's file covers 48 hours starting at 0:00 UTC.
GRIB files will be uploaded on the mornings of July 17, 18, and 19 2025.
Download a demo GRIB here: https://drive.google.com/file/d/1cUy1eRIEAgqxypZWCx5Kaze-p1uC6oBv/view?usp=drive_link
Note that these GRIB files are several hundred megabytes.