Heavy rainfall from scattered thunderstorms is expected across the Southwest, Intermountain West, and Plains. Isolated dry thunderstorms may initiate additional fires across the west. The coastal Carolinas may experience flash floods in the coming days due to repeated thunderstorms. Additionally, a wave of intense summer heat will hit the Southern Plains and central Gulf Coast States this week. Read More >
Overview
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A strong arctic front Sunday night into early Monday was ushered in by very strong wind, at times over 60 mph. While very few cold temperature records were sent, the air mass was the coldest in the last 10 to 20 years across the region. Temperature in many locations fell below zero late Monday night and did not rise above zero until Thursday morning. The coldest day of the period was on January 30 when many locations had wind chills form -40 to -60°F. Daytime temperatures were between -10°-0°F. |
 Coldest Wind Chill Values for January 30-31, 2019 |
Wind/Frontal Passage:
A strong arctic front moved across South Dakota, Minnesota, and Iowa Sunday night. The front resulted in a temperature fall of 15 to 20 degrees in an hour in parts of eastern South Dakota as winds gusted over 60 mph..
Frontal Passage
Wind and temperatures observations for Sunday evening into Monday morning showing the strong frontal passage.
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| Sioux Falls, South Dakota | Sioux City, Iowa | Mitchell, South Dakota | Huron, South Dakota |
Peak Wind Gusts
Peak wind gusts during Sunday night into Monday morning.
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| Peak observed wind gust Evening of January 27 thru the morning of January 28 |
Wind Chills
Coldest wind chill values, most of which occurred Wednesday night into early Thursday morning.
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Location Wind Chill Time/Date Provider
Windom Muni Airport -60 F 1155 PM 01/29 AWOS
Marshall Municipal Airport -59 F 1156 PM 01/29 AWOS
Jackson Airport -58 F 1236 AM 01/30 AWOS
Worthington Airport -58 F 0356 AM 01/30 AWOS
Tracy Airport -55 F 0215 AM 01/30 AWOS
Brookings Municipal Airport -54 F 0856 PM 01/29 AWOS
Madison Airport -53 F 1055 PM 01/29 AWOS
Pipestone Airport -53 F 1235 AM 01/30 AWOS
Storm Lake Airport -53 F 1115 PM 01/29 AWOS
Sheldon Airport -52 F 0935 PM 01/29 AWOS
Luverne Airport -51 F 0556 AM 01/30 AWOS
Spencer Municipal Airport -51 F 0253 AM 01/30 ASOS
Huron Regional Airport -49 F 0255 AM 01/30 ASOS
Sioux Falls Airport -47 F 1056 PM 01/29 ASOS
Cherokee Municipal Airport -46 F 1035 PM 01/29 AWOS
Le Mars Airport -46 F 1135 PM 01/29 AWOS
Orange City Airport -46 F 0415 AM 01/30 AWOS
Sioux Gateway Airport -43 F 1152 PM 01/29 ASOS
Mitchell Municipal Airport -42 F 1153 PM 01/29 ASOS
Yankton Municipal Airport -41 F 0256 AM 01/30 AWOS
Chamberlain Municipal Airpor -32 F 0935 PM 01/29 AWOS
Temperature Records
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| Record lows for the morning of January 30th. | Time spent below zero degrees from January 28th thru February 1st. |
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| January 31, 2019 Low Temperature | January 31, 2019 High Temperature |
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