KDLT Home KDLT on Facebook KDLT on Twitter Get the KDLT iPhone App Get the KDLT Android App

A Quick Change In Weather



Bookmark and Share

For those of us who call the Upper Midwest home, we’re no stranger to rapid temperature changes. In fact, Spearfish, South Dakota holds the world record for the fastest change in temperature ever recorded. The morning of January 22, 1943, which will be exactly 70 years ago this upcoming Tuesday, the temperature went from -2°F to 54°F in only two minutes.

The phenomena that caused this rapid increase in temperature is known as a Chinook wind, a gust of warm, dry air rapidly moving down the slopes of a mountain range. Once the Chinook had settled, the temperature dropped back down to -4°, a 58° drop over the course of 27 minutes. Without a doubt, it was an impressive event in weather history for not only us South Dakotans, but for everyone worldwide.

Although Saturday’s rapid drop in temperature didn't come close to any records; it was certainly enough to get people talking. The entire second half of this week, we were spoiled with pleasant spring-like temperatures well above average. Here’s a look at Sioux Falls’ highs throughout the week, including Saturday’s maximum temperature just before the cold front moved through.



If you walked outside Saturday morning, you probably didn’t think to grab a jacket unless you already knew the forecast for the afternoon. Here’s a look at one of our forecast models showing temperatures just above the surface around noon on Saturday. As you can see, an area of low pressure centered over NE Minnesota and Lake Superior was wrapping air counterclockwise bringing a shot of cold air out of Canada. At this point, the cold front seemed to be draped across our region from east to west. Once it passed, temperatures dropped continuously.



As you can see in the next four graphics, Saturday’s warmest temperatures were felt later in the morning before this cold front moved through. Looking at temperatures from midnight Saturday morning through 10 PM, you can clearly see about what time the cold front moved through each location. Obviously, the cold front passed through Aberdeen before Pierre and Sioux Falls shortly after noon dropping temperatures from 30° to 17° in only two hours. The cold front later passed through Pierre and Sioux Falls roughly about the same time dropping temperatures dramatically in a very short time frame.



ABERDEEN TEMPERATURES & WIND CHILLS




SIOUX FALLS TEMPERATURES & WIND CHILLS




PIERRE
TEMPERATURES & WIND CHILLS



 
Along the cold front, winds picked up dramatically making this dramatic drop in temperature seem even more intense. Winds seemed to be much stronger along and east of the James River where winds were sustained between 20 and 30 miles per hour compared to 10 to 20 mile per hour winds across the west. Either way, wind chills bit much harder this afternoon than they did over the past few days and even this morning. In fact, for a few hours shortly after midnight, temperatures were so warm that wind chills read “not-applicable” for a short period of time. By the end of the day, however, wind gusts had peaked between 31 and 53 miles per hour across our region with the strongest gusts found around Sisseton in NE South Dakota.



As you can imagine, this colder air mass is here to stay, at least through the first of this week. In fact, another system will be moving through Sunday morning bringing us a shot at light snow and a reinforcing shot of cold air. This snow event, however, is not expected to be of significance because of a limited amount of moisture available and high winds which will drive snow totals down quite a bit. Here’s a look at what our Futurecast Snowfall expects us to receive with Sunday morning’s light snow, which will likely be out of here by early Sunday afternoon.



Once the snow is out of here, temperatures are forecast to plummet once again; this time, even colder than Saturday night as clouds will gradually clear during the overnight hours. Lows will likely dip into the 20s and teens below zero across the region with only a few locations across our extreme southern counties remaining in the single digits below zero. That, along with breezy conditions, wind chills will drop dangerously likely prompting wind chill advisories, or even warnings. Here’s a look at where we expect the coldest wind chills to be felt.



Of course, we will keep you updated with the very latest information as it comes our way right here on KDLT and KDLT.com. You can also follow all of us on Twitter.

Back To Top
Weather Blog Archive
     

Beef Prices At All Time High

Beef prices are soaring, and in February they hit record highs. While it's ...

Rhoden Raises Just Under $16K During Quarter

Republican U. S. Senate candidate Larry Rhoden raised just shy of $16,000 during the first three months of 2014.    ...

Fatal Accident In Rural Clark County

A Henry, S. D. man died Monday in a two vehicle crash approximately twenty miles west of ...

School Of Mines Names New Athletic Director  Apr. 16

Players Cool To Returning MN State Coach  Apr. 16

Putting Plants To Work, Four Stories High  story with video  Apr. 16

State Help For Northern Beef Was About $4.4M  Apr. 16

2 Puppies Stolen From Mitchell Pet Store  Apr. 16

Fired Coach Returns To MN State, Mankato  Apr. 16

Driver Identified In Fatal Accident Near Salem  Apr. 16

Indian Motorcycles Dealership To Open In Sturgis  Apr. 16

US Judge Overturns North Dakota Abortion Law  Apr. 16

MNsure Chooses Deloitte As Lead IT Vendor  Apr. 16

Branstad's Tax Return Shows Income Of $234,907  Apr. 16

Cool, Wet Spring May Ease Drought  Apr. 16

SD Man Who Used Child As Shield Gets 20-Year Term  Apr. 16

The Value In Sharing  story with video  Apr. 16

KDLT News Today: "The Block" 4-16-2014  story with video  Apr. 16

Wild Guide Stephanie Arne Returns To KDLT   story with video  Apr. 16

SD Corrections Board To Discuss Reforms, Policy  Apr. 16

Daugaard Invites Kids To Easter Egg Hunt  Apr. 16

Pierre City Commission Rejects Chicken Proposal  Apr. 16

Future Of Spellerberg Becoming More Defined  story with video  Apr. 15

Gov. Daugaard: 'Purple Up For Military Kids'  Apr. 15

Gov Urges Communities To Celebrate Statehood  Apr. 15

Special Olympics Needs Help To Make Dream A Reality  Apr. 15

McVay Death Sentence Will Get Automatic Review  Apr. 15

Rep. Noem Holds 'Lead Now' Youth Conference  Apr. 15

McVay Receives Death Sentence: What's Next  Apr. 15

FEC Report: Pressler Raised Less Than $10K  Apr. 15

USDA Aid Programs Not Intended For PED Virus Assistance  Apr. 15

Boy, 10, Arrested For Carrying BB Gun To School  Apr. 15

Ex-MN State, Mankato Coach Returning To Job  Apr. 15

KDLT News Archive
     

Car Accident Killed SD Girls Missing Since 71  story with video

Authorities say two South Dakota girls missing ...

Driver Identified In Fatal Accident Near Salem

A blown tire is to blame for a fatal accident west of ...

SD Hutterite Colony Loses 600 Hogs In Barn Fire

A Hutterite colony in southeastern South Dakota is ...

Rural Platte Woman Dies After Fall Through Roof  Apr. 15

Rep. Noem Holds 'Lead Now' Youth Conference  Apr. 15

New State Fair 4-H Hall In Huron Gets $1M Gift  Apr. 15

Rare Lunar Eclipse Visible From Earth  Apr. 15

Boy, 10, Arrested For Carrying BB Gun To School  Apr. 15

KDLT News Archive
     

Lincoln sweeps city track titles  story with video

The Lincoln Patriots won both the boys and girls team titles Tuesday at the Rich ...

Cougars, SMSU split in baseball  story with video

SIOUX FALLS, S. D. (APRIL 15, 2014): After enduring a narrow 6-4 defeat in ...

Jacks outscore UND behind Splett's 2 HR's  story with video

BROOKINGS, S. D. – South Dakota State scored runs in ...

Augie softball sweeps SMSU  story with video  Apr. 15

Vikes Sweep Upper Iowa in baseball  story with video  Apr. 15

Carlson leads OG to huge lead in city golf  story with video  Apr. 14

Skyforce beat Canton, advance to semi's  story with video  Apr. 14

Horn makes sweet music for Herd!  story with video  Apr. 14

KDLT Sports Stories
     
Back To Top