From the North Platte Police Department:

As a reminder: According to North Platte City Ordinance § 76.21 Parking of Boats and Trailers.  “During the months of November, December, January, February and March of every calendar year, it shall be unlawful for any person owning or being in custody or control of the boat or trailer to park or leave standing on the streets of the city any boat, boat trailer, pontoon or pontoon trailer, except for the purposes of loading and unloading, and then only for the length of time necessary to load or unload the boat or trailer.”

Also:  Vehicles parked on city streets need to be at least 30 feet away from stop signs and 15 feet away from crosswalks.  There is also a 72 hour maximum time limit when parking on city streets unless otherwise posted.