2017-2018 winter weather outlook promises to be "volatile"

4 months 3 weeks 4 days ago Wednesday, November 29 2017 Nov 29, 2017 Wednesday, November 29, 2017 7:00:00 PM CST November 29, 2017 in Weather
By: Kenton Gewecke, KOMU 8 Chief Meteorologist
loading

COLUMBIA - Last year, the winter of 2016-2017 lacked, well, winter. It was unseasonably warm with record breaking warm temperatures and the least amount of snow we've seen since weather records began in the late 19th century. An average winter in mid-Missouri will recieve between 16 and 17 inches of snow. Last winter we received a record low with less than 2" of snowfall accumulation. 

This year will be different. We have a moderate to strong La Niña pattern expected to last through the winter into spring. While every La Niña year is different, there is a general pattern we typically see.

To be more specific, La Niña is an atmospheric pattern stemming from equatorial trade winds and sea surface temperatures. A La Niña is evident when the Equatorial Pacific sea surface is much cooler. The easterlies (trade winds) will push warmer ocean water to the western Pacific ocean, leaving the eastern Pacific cooler. 

There is another indicator of a La Niña pattern: strong hurricanes in the Atlantic. We saw this in the summer and fall of 2017 with multiple major hurricanes forming and hitting the United States. 

So now that we have a La Niña pattern overhead, what does that mean for the United States and Mid-Missouri this winter season?

General U.S. Winter La Niña Weather Pattern

A "Blocking High" will push the the jet stream to stream from the NW United States to dip into the central US. This will bring in colder air from Canada along with moisture. However, warmer and drier conditions are usually experienced in the southern U.S. That leaves Missouri in the "battle zone".

Missouri is in the middle of it all: wet, dry, cold, warm. That means this winter is not only more difficult to predict but we'll be more susceptible to many different situations. 

Before we move into the forecast, it is important to note that the simple fact that we're entering a moderate or strong La Niña winter doesn't mean we'll see anything specific. It is not exact science. It is not an equation "Winter+La Niña='XYZ'." For example, look back at the past 10 winters in mid-Missouri and compare the La Niña winters to each other.

A strong La Niña winter in the past has meant both 14.4" (below average) and 53.4" (extremely above average). Again, no two La Niña winters are perfectly alike. 

2017-2018 Winter Outlook: Missouri

We're in the "battle zone" which means we're likely going to see a bit of everything. This means we won't be cold all winter or warm all winter or dry or wet all winter. We're going to have many different systems and patterns throughout winter. Just when we get used to one type of weather, we'll see a change. A volatile winter, if you will.

Overall, we expect average or above average precipitation. What's impossible to know is how exactly that precip. will pile up. Will it be rain, ice, or snow?

We have equal chances for average rainfall and snowfall this winter. However, compared to an average winter, we will have an increased chance for ice. This is because we're between colder and warmer air (the "battle zone"), meaning there is a better chance we'll be close to the freezing mark as precipitation falls.

Temperatures will be average, but likely above average overall after it's all said and done. We can expect multiple bitterly cold systems to bring in colder arctic air. This is in large part due to the jet stream's setup in the La Niña pattern. Stretches of time will be warm, too.

For the latest forecast updates and tracking of this volatile winter directly from the KOMU 8 Weather Center, right in the palm of your hands, download the KOMU 8 Weather & Traffic App on your Apple and Android devices. 

We'll keep you updated every day on KOMU 8 Newscasts, on the web at komu.com/weather and on Facebook & Twitter

It's winter weather coverage you can count on.

More News

Grid
List
COLUMBIA - A man is suffering from a gunshot wound after an argument in the parking lot of the... More >>
2 hours ago Thursday, April 26 2018 Apr 26, 2018 Thursday, April 26, 2018 4:40:00 AM CDT April 26, 2018 in News
HOLTS SUMMIT - Joshua Lee is a retired sergeant from the Missouri National Guard where he served from 2007 to... More >>
10 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 8:00:00 PM CDT April 25, 2018 in News
COLUMBIA - The Food Bank of Central and Northeast Missouri moved to a new location to help feed more people... More >>
11 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 7:34:00 PM CDT April 25, 2018 in News
JEFFERSON CITY (AP) — A Missouri House committee investigating Republican Gov. Eric Greitens has hired former state Supreme... More >>
11 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 7:32:00 PM CDT April 25, 2018 in Continuous News
COLUMBIA - MU researchers say there will be 600 million people with some level of diabetic blindness by the year... More >>
11 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 7:27:00 PM CDT April 25, 2018 in News
COLUMBIA - The Downtown Leadership Council wants more parking spaces for customers and visitors downtown. The Downtown Leadership Council... More >>
11 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 6:58:00 PM CDT April 25, 2018 in News
SWEET SPRINGS - As temperatures rise in Central Missouri, so do fishermen's aspirations of landing their trophy catch. Missouri's lakes... More >>
11 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 6:49:00 PM CDT April 25, 2018 in News
JEFFERSON CITY - Gov. Eric Greitens' attorneys will argue the office of Attorney General Josh Hawley should be blocked from... More >>
12 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 6:22:00 PM CDT April 25, 2018 in News
COLUMBIA - "Organic" and "non-GMO"—these food labels adorn all kinds of products, from breakfast cereal to snack food. And according... More >>
13 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 5:20:00 PM CDT April 25, 2018 in News
BELLERIVE (AP) — The University of Missouri-St. Louis is considering eliminating some degree programs amid financial trouble. A committee... More >>
13 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 5:17:00 PM CDT April 25, 2018 in News
SPRINGFIELD (AP) — Missouri State University and its food supplier are investigating to determine how a small mouse was found... More >>
14 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 3:50:00 PM CDT April 25, 2018 in News
COLUMBIA – A study out this week finds high stress levels among elementary teachers affect student behavior and performance. ... More >>
15 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 3:38:00 PM CDT April 25, 2018 in News
JEFFERSON CITY - More than 100 immigrants gathered to become American citizens at the naturalization ceremony Wednesday afternoon. "It's... More >>
15 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 3:29:00 PM CDT April 25, 2018 in News
JEFFERSON CITY (AP) — Legal experts say Missouri Gov. Eric Greitens was not entitled to use a donor list... More >>
15 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 3:11:56 PM CDT April 25, 2018 in Top Stories
COLUMBIA - The head of an MU Latino student group said Wednesday a court ruling to protect the Deferred Action... More >>
15 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 3:06:00 PM CDT April 25, 2018 in News
OSAGE BEACH - Hundreds celebrated the life of Miller County sheriff's deputy Casey Shoemate Wednesday morning. Shoemate died Friday... More >>
15 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 2:49:00 PM CDT April 25, 2018 in Top Stories
ST. CHARLES (AP) — In a brief and subdued speech to hundreds of St. Louis area police officers, Missouri Gov.... More >>
16 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 2:41:00 PM CDT April 25, 2018 in News
JEFFERSON CITY – Union teachers are urging lawmakers to vote against a bill that would change how unions use dues... More >>
16 hours ago Wednesday, April 25 2018 Apr 25, 2018 Wednesday, April 25, 2018 2:28:00 PM CDT April 25, 2018 in News
Columbia, MO
Broken Clouds 47°
7am 45°
8am 48°
9am 53°
10am 57°