National Weather Service United States Department of Commerce

Snow Squalls from the Upper Midwest to Great Lakes; High Winds in the Northern and Central Plains

An Arctic front will bring widespread snow squalls through Friday from the Upper Midwest to the Ohio Valley. Heavy snow rates and strong winds will lead to near-zero visibility and dangerous travel conditions. High winds will continue across the northern and central High Plains through Friday, with wind gusts above 60 mph likely, leading to hazardous travel conditions. Read More >

CIGS

VSBY

AAR

Type Approaches

Impact

>040

>10

130+

Visuals

 

012*-040

>10

112-118

Instrument

 

012*-040

<10

90-108

Instruments

MIT, TBFM (scheduling/metering)

<012*

>1/2

90-98

Instruments

MIT, TBFM (scheduling/metering)

002-009

½ - 3

78-96

Instruments

MIT, TBFM (metering/scheduling)

<002

<1/2

54-60

Instruments

Tower requires additional spacing on arrival runways due to Tower Departure rule (2 increasing to 3). CATII and CATIII ILS approaches; MIT, GDP, Potential GS

*D10 varies this threshold between 020-012 depending on traffic volume and other operational conditions.

 

Wind Speed/Direction

 

AAR

Type Approaches

Impact

25-30kts sustained from 280-300

Xwind

84-114

Visuals

MIT, TBFM (metering/scheduling)

>35kts sustained from 280-300

NW Flow Event

24-48

Instrument/Visuals

GDP, MIT, Potential GS

Gusts >45kts from 280-300

Xwind/NW Flow

24

Instrument/Visuals

Potential GS

 

S4 VMC: 13R (6MIT), 18R, 17C, 17L = 130/90

S4 LVMC: 13R (6MIT), 18R, 17C, 17L= 116/90

S4 IMC:   13R (6MIT), 18R, 17C, 17L= 108/90

S3 IMC:     18R, 17C, 17L = 98/90

S3 LIMC:  18R, 17C, 17L = 90/90

 

N4 VMC: 36L, 35C, 35R, 31R (6MIT) = 124/90

N4 LVMC: 36L, 35C, 35R, 31R (6MIT) = 112/90

N4 IMC:  36L, 35C, 35R, 31R (6MIT) = 108/90

N3 IMC:  36L, 35C, 35R = 94/90

N3 LIMC: 36L, 35C, 35R = 88/90

NW2VMC/IMC:  31R, 31L = 48/48 (5MIT on ea)

NW2LIMC: 31R = 24 (Single RWY)