Super Bowl Sunday, the nation’s unofficial national holiday, is one day away.

The New England Patriots square off against the Atlanta Falcons at 5:30 p.m. Sunday at NRG Stadium in Houston.

Estimates are that more than 100 million television viewers will tune in to watch the 51st edition of the game that crowns the champion of the National Football League.

Several local establishments will have watch parties and specials.

Marfield’s Irish Pub, located at 312 2nd St., will have drink specials, including bottomless mimosas from 10 a.m. to 4 p.m.

Buffalo Wild Wings, located at 5041 S. 4th St., will have several door prizes and a hot wings eating contest.

“The Super Bowl is our biggest day of the year,” said George Willard, front of house manager at the restaurant.

Tom’s Country Stampede will have a full taco bar and $5 pitchers of beer. The establishment is located at 745 Cherokee St.

Stars and Stripes Bar & Grill will have beer specials and distributor giveaways. The bar is located at 1701 10th Ave.

The Fort Leavenworth Dining Facility will have a Super Bowl dinner at 5 p.m. The facility is located at 400 Iowa Ave. on Fort Leavenworth. The menu will include chicken wings, turkey nuggets, pizza, nachos and chili.

Local law enforcement officials are urging motorists to be careful while driving.

“If people choose to partake in alcohol, be sure to pass the keys to a sober driver,” said Jim Sherley, undersheriff at the Leavenworth County Sheriff’s Office.

Sherley said motorists should buckle their safety belts and watch out for other drivers.

He said a full contingent of deputies will be patrolling the county on Super Bowl Sunday.

The first- and second-grade classes at Lansing Elementary School got a head start in the run-up to Super Bowl Sunday.

Jennifer Taylor Leitsch is a first-grade teacher at the school. She is a native of Boston and an avid Patriots fan. Barb Robinson is a second-grade teacher at Lansing Elementary. Her husband is from Boston and she has become a big New England fan.

The two teachers decorated their classrooms with posters and pennants supporting the Patriots. They also brought signs with the likeness of Patriots’ quarterback Tom Brady on them.

With the understanding that many of their students could be fans of the Kansas City Chiefs, the teachers encouraged their students to wear Chiefs’ attire to the classroom Super Bowl celebration.

With such a massive television audience, the Super Bowl is considered one of the top advertising days of the year. Last year, spending on Super Bowl commercials amounted to approximately $380 million, according to Ad Age Datacenter. A 30-second commercial costs more than $5 million this year.

Twitter: @LVTimesRountree