Live updates: Sioux Falls sees record-breaking snowfall; dangerous wind chills ahead

8:15 a.m. Tuesday: The Sioux Falls area saw a record breaking total of 10.5 inches of snow Monday, with another .3 inches since midnight, according to the NWS.

And though the winter storm warning has expired, a winter storm advisory remains in effect until noon today, because of blowing snow and possible additional accumulations of less than an inch, the NWS stated.

The Washington Pavilion and Orpheum Theater remain closed Tuesday, because of unsafe road conditions.

Multiple school districts across Minnehaha and Lincoln counties also remained closed for a second day.

Roads throughout the area remain icy, slippery and frost-covered, according to SD511.org, the state's road conditoon tracker.

More snow is anticipated Wednesday and Friday as temperatures plummet, but the chance for more than an inch is currently low, the NWS states.

Dangerous wind chills are also likely this weekend, with wind chill values between -20 and -35 degrees, especially Saturday and Sunday, NWS states.

Weather

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5:45 p.m. Monday: With 9 inches on the ground in Sioux Falls and more snow expected through early Tuesday, school districts within the city are starting to announce delays for classes Tuesday morning.

These districts have announced two-hour delays so far:

• Bishop O'Gorman Catholic Schools

• Dell Rapids School District

• Dell Rapids-St. Mary's School

• Harrisburg School District

• Parker School District

• Sioux Falls Christian Academy

• Sioux Falls Lutheran School

• Sioux Falls School District

• Tri-Valley School District

• Westside Christian

3:15 p.m. Monday: As of this afternoon, Sioux Falls had received a little less than 9 inches of snow, with more expected this evening.

The weather has also forced Great Shots to close at 5 p.m. resulting in the cancellation of the University of Sioux Falls’ watch party for the College Football Playoff National Championship, according to an email from the university. The watch party would have been supporting the four members of the Washington Huskies' coaching staff with ties to USF.

2 p.m. Monday: Sioux Falls is now under a snow alert, meaning cars will need to be moved off city streets as plowing begins early Tuesday morning. The city's snow alert tracker should let you see when a street has been cleared — albeit with a delay of an hour or two.

Noon on Monday: Sioux Falls has reached a total of 8.3 inches so far, according to the NWS.

10:50 a.m. Monday: The NWs has extended its winter storm warning to now include Jackson and Cottonwood counties.

The warning we're expected to see another 4 to 7 inches of snow through the early hours of Tuesday morning.

"Travel conditions will deteriorate through the remainder of the morning as snow intensifies," the NWS stated on social media.

10 a.m. Monday: The NWS says another wave of snow is starting to develop, which will make road conditions deteriorate rapidly.

Visibility will be down to less than a mile in some areas as the new snow band moves from the northwest into southeastern South Dakota and roads become snow-covered once more.

9:30 a.m. Monday: The Washington Pavilion of Arts & Science and Orpheum Theater Center is closed because of the storm.

This closure includes the Kirby Science Discovery Center, Wells Fargo CineDome & Sweetman Planetarium, Visual Arts Center, Box Office, Graham Academy Preschool and The WP café.

As of 9 a.m., the area had received about 8 inches of snow, with more anticipated throughout the day, according to NWS.

9 a.m. Monday: The Sioux Falls School District announced it has canceled the school board work session scheduled for 2:30 p.m. at the CTE Academy, and the school board meeting scheduled for 5:30 p.m. at the Instructional Planning Center.

The work session is tentatively postponed until Jan. 22. An option will be found next week for school board members to hold the business portion of their meeting, and the agenda items slated for Monday's superintendent's report will instead be presented at the regular Jan. 22 school board meeting.

8:40 a.m. Monday: The Lincoln County Courthouse is closed today due to weather conditions.

The Minnehaha County Courthouse is still open at this time.

Meanwhile, Mayor Paul TenHaken has urged Sioux Falls residents not to travel today if they do not have to, and to give snow plows time and patience to manuever the roads.

Southeastern Technical College has also since closed for the day.

A city press release said emergency routes are currently being cleared, and a snow alert will be issued later today, “timing dependent on weather conditions.”

7:15 a.m. Monday: As of 7 a.m., 7 inches of snow has already fallen in Sioux Falls, according to the NWS.

The Minnehaha County Sheriff’s Office has has said no travel is advised, especially along 478th Avenue and 258th Street.

"Difficult to impossible " travel conditions are expected throughout the rest of the day as the storm continues, the NWS stated on its website as part of its latest weather briefing.

The University of South Dakota - Sioux Falls has also announced its closure for the day.

Officials with the Sioux Falls Regional Airport stated on social media that crews are working hard to keep flights on time, but travelers should expect some delays today.

South Dakota, Sioux Falls area school closures

9:30 p.m. Sunday: School districts throughout the Sioux Falls area are starting to close ahead of Monday's winter storm, while other institutions are announcing delayed starts. Here's who has announced so far:

Closed:

• Baltic School District

• Beresford School District

• Bishop O'Gorman Catholic Schools

• Canton School District

• Dell Rapids School District

• Garretson School District

• Harrisburg School District

• Lennox School District

• Tea Area School District

• Sioux Falls Lutheran School

• Sioux Falls School District

Delayed:

• Southeast Technical College - 10 a.m. opening

7:30 p.m. Sunday: Estimated snowfall levels continue to increase as a major winter storm approaches southeastern South Dakota.

The National Weather Service of Sioux Falls now predicts the area to see 7 to 11 inches of snow between Sunday night and early Tuesday, and a winter storm warning will be in effect from midnight Sunday to 6 a.m. Tuesday.

A few flights, arriving and departing, have started to experience delays at Sioux Falls Regional Airport. Roads are also already icy and slippery in areas west of Lincoln and Minnehaha counties, according to the state's road condition tracker.

The storm is expected to hit in two waves, according to the latest NWS weather briefing.

The first wave is expected between Sunday night and early Monday morning. If the first wave moves quickly, the predicted snowfall estimates could be reduced by a couple inches or more, NWS states.

The second wave, which is anticipated to be more broad in scope, moves in late morning or early afternoon Monday, but the exact track is still uncertain. That, too, could affect how much snowfall comes to the area, NWS states.

3:45 p.m. Sunday: The winter weather watch for Sioux Falls has been upgraded to a winter storm warning, according to the National Weather Service of Sioux Falls.

The warning extends from midnight Sunday to 6 a.m. Tuesday, the alert states. Heavy snow is expected, with accumulations of anywhere from 6 to 10 inches for Lincoln and Minnehaha counties.

Travel will be impacted. If you must travel, the NWS advises drivers to keep flashlights, food and water in vehicles in case of an emergency.

Earlier story: Southeastern South Dakota, including Sioux Falls, is now under a winter storm watch, according to the National Weather Service.

The watch, which runs from Sunday evening through late Monday night, comes as a winter system is expected to bring anywhere from 5 to 9 inches of accumulating snowfall to the area, the alert reads.

The NWS predicted as of Sunday morning there is a 61% the area could see more than 6 inches of snow by the time the storm passed through.

The storm could affect travel, with slippery roads and hazardous conditions expected for morning and evening commutes, the NWS of Sioux Falls states.

When will the storm hit?

The heaviest snowfall is expected to hit Sioux Falls at about 6 a.m. Monday and will continue through midnight and into the early hours Tuesday, the NWS of Sioux Falls stated in a weather briefing Saturday evening.

How can I stay informed?

Keep refreshing argusleader.com for the latest, or visit the National Weather Service in Sioux Falls website.

Also, check www.sd511.org for road condition updates.

What will conditions look like the rest of the week?

After the storm, temperatures are expected to plummet during the evenings throughout the week, with a few nights reaching single-digits or below-zero Temps. Here's a closer look, according to the NWS of Sioux Falls.

Sunday: Partly sunny, with a high near 26. Calm wind becoming southeast around 5 mph in the afternoon.

Sunday night: Snow likely, mainly after 3am. Cloudy, with a low around 21. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.

Monday: Snow. High near 32. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of around 2 inches.

Monday night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Tuesday: Partly sunny, with a high near 21. Blustery, with a north wind 10 to 20 mph, with gusts as high as 25 mph.

Tuesday night: Mostly cloudy, with a low around 9.

Wednesday: A 30% chance of snow. Mostly cloudy, with a high near 27.

Wednesday night: Mostly cloudy, with a low around 1. Blustery.

Thursday: Mostly sunny, with a high near 7.

Thursday night: Mostly cloudy, with a low around -7.

This article originally appeared on Sioux Falls Argus Leader: Sioux Falls school closures, snow totals: Dangerous wind chills ahead