Alert archive / South Dakota / Winter Storm Warnings in 2017

Winter Storm Warning 1, NWS Sioux Falls, SD

January 23, 20174 states

NWS Sioux Falls, SD issued this winter storm warning at Jan 23, 2017, 2:59 PM CST for 4 states. It took effect at Jan 24, 2017, 12:00 AM CST. It was in force for 42 hr. 60 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 23, 2017, 2:59 PM CST (20:59 UTC)
In effect from
Jan 24, 2017, 12:00 AM CST
Expired
Jan 25, 2017, 6:00 PM CST
In force
42 hr
Issued by
NWS Sioux Falls, SD
All 45 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Dakota County, NE, Dixon County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 16 km from the middle of the area, began a volume at 20:57 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jan 24, 9:14 AM CSTSNOW 0.52 S Armour, SDSNOW STARTED AND STOPPED AT ARMOUR.
Jan 24, 10:19 AM CSTSNOW 1.55 Wnw Wakefield, NESNOW INCREASING WITH BIG FLAKES.
Jan 24, 12:00 PM CSTSNOW 1Sergeant Bluff, IA.
Jan 24, 12:11 PM CSTSNOW 0.5Hornick, IASNOW BEGAN AND ENDED. LARGE FLAKES FOR A WHILE.
Jan 24, 12:20 PM CSTSNOW 22 N Ponca, NESNOWING NOW.
Jan 24, 12:50 PM CSTSNOW 0.7Tyndall, SD.
Jan 24, 1:16 PM CSTSNOW 1Chatsworth, IA1/2 TO ONE INCH OF NEW SNOW AND SNOWING HEAVILY NOW.
Jan 24, 1:19 PM CSTSNOW 111 N Vermillion, SDSNOWING NOW WITH LARGE FLAKES.
Jan 24, 1:28 PM CSTSNOW 18 W Springfield, SDSNOWING NOW WITH LARGE FLAKES.
Jan 24, 1:38 PM CSTSNOW 0.81 Nw Lake Andes, SDSNOWING NOW WITH VISIBILITY ABOUT ONE HALF MILE.
Jan 24, 1:43 PM CSTSNOW 3Kingsley, IAREPORT VIA SOCIAL MEDIA.
Jan 24, 3:16 PM CSTSNOW 3Pickstown, SD.
Jan 24, 3:26 PM CSTSNOW 2.74 E Sioux Rapids, IA.
Jan 24, 3:39 PM CSTHEAVY SNOW 41 Ne Orange City, IA.
Jan 24, 3:49 PM CSTHEAVY SNOW 7.5Yankton, SD.
Jan 24, 3:55 PM CSTHEAVY SNOW 3Sioux Center, IA.
Jan 24, 4:49 PM CSTHEAVY SNOW 6.2Tyndall, SD.
Jan 24, 5:00 PM CSTHEAVY SNOW 2.5Spirit Lake, IA.
Jan 24, 5:22 PM CSTHEAVY SNOW 8Hawarden, IA.
Jan 24, 5:23 PM CSTHEAVY SNOW 6.5Cherokee, IAREPORT POSTED VIA SOCIAL MEDIA. .
Jan 24, 5:26 PM CSTHEAVY SNOW 8Yankton, SDREPORT POSTED VIA SOCIAL MEDIA.
Jan 24, 6:10 PM CSTHEAVY SNOW 32 Nnw Sioux City, IA.
Jan 24, 6:10 PM CSTHEAVY SNOW 6Brunsville, IAREPORT POSTED VIA SOCIAL MEDIA.
Jan 24, 6:30 PM CSTHEAVY SNOW 7.5Le Mars, IAPHOTO AND REPORT POSTED VIA SOCIAL MEDIA.
Jan 24, 6:30 PM CSTHEAVY SNOW 9Alcester, SDREPORT POSTED VIA SOCIAL MEDIA.
Jan 24, 6:50 PM CSTHEAVY SNOW 7Peterson, IA.
Jan 24, 6:50 PM CSTHEAVY SNOW 8.5Ponca, NE.
Jan 24, 7:00 PM CSTHEAVY SNOW 8Rock Valley, IA.
Jan 24, 7:00 PM CSTHEAVY SNOW 9.5Yankton, SDPHOTO AND REPORT POSTED VIA SOCIAL MEDIA .
Jan 24, 7:00 PM CSTHEAVY SNOW 106 Wsw Springfield, SD.
Jan 24, 7:50 PM CSTHEAVY SNOW 21 Wsw Sioux City, IA.
Jan 24, 7:55 PM CSTHEAVY SNOW 4.8Spirit Lake, IA.
Jan 24, 8:00 PM CSTHEAVY SNOW 2.52 Sse North Sioux City, SD.
Jan 24, 8:05 PM CSTHEAVY SNOW 4.5Tea, SD.
Jan 24, 8:30 PM CSTHEAVY SNOW 7.5Superior, IA.
Jan 24, 8:30 PM CSTHEAVY SNOW 13.58 Wsw Springfield, SD.
Jan 24, 8:40 PM CSTHEAVY SNOW 8Vermillion, SD.
Jan 24, 8:42 PM CSTHEAVY SNOW 6.2Lake Park, IA.
Jan 24, 8:44 PM CSTHEAVY SNOW 6Kingsley, IA.
Jan 24, 8:45 PM CSTHEAVY SNOW 3Brandon, SD.
Jan 24, 8:45 PM CSTHEAVY SNOW 5Elk Point, SD.
Jan 24, 8:51 PM CSTHEAVY SNOW 42 E Sioux Falls, SD.
Jan 24, 8:53 PM CSTHEAVY SNOW 8.5Boyden, IAREPORT POSTED VIA SOCIAL MEDIA.
Jan 24, 9:00 PM CSTHEAVY SNOW 3.51 S Mitchell, SD.
Jan 24, 9:00 PM CSTHEAVY SNOW 3.54 Ene Tea, SDREPORT POSTED VIA SOCIAL MEDIA.
Jan 24, 9:00 PM CSTHEAVY SNOW 43 Se Sioux City, IAREPORT POSTED VIA SOCIAL MEDIA.
Jan 24, 9:04 PM CSTHEAVY SNOW 83 Ne Cherokee, IAREPORT POSTED VIA SOCIAL MEDIA.
Jan 24, 9:15 PM CSTHEAVY SNOW 4.63 Sse Sioux Falls, SD.
Jan 24, 9:20 PM CSTHEAVY SNOW 117 Nnw Ireton, IA.
Jan 24, 9:30 PM CSTHEAVY SNOW 10Rock Valley, IA.
Jan 24, 9:30 PM CSTHEAVY SNOW 11.5Alcester, SDPHOTO AND REPORT POSTED VIA SOCIAL MEDIA.
Jan 24, 9:35 PM CSTHEAVY SNOW 6Spirit Lake, IA.
Jan 24, 9:45 PM CSTHEAVY SNOW 13Yankton, SD.
Jan 24, 10:00 PM CSTHEAVY SNOW 9.7Tyndall, SD.
Jan 24, 10:13 PM CSTHEAVY SNOW 7Canton, SD.
Jan 24, 11:30 PM CSTHEAVY SNOW 5.23 Sse Sioux Falls, SD.
Jan 25, 6:00 AM CSTSNOW 32 S Huron, SD.
Jan 25, 6:00 AM CSTSNOW 5.2Sergeant Bluff, IA.
Jan 25, 6:00 AM CSTSNOW 6.43 N Sioux Falls, SD.
Jan 25, 6:00 AM CSTSNOW 8.38 Ssw Chamberlain, SDCOCORAHS STATION 6 S OACOMA /SD-BL-10/.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.0 hours before the alert went out and 202 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Aberdeen, SD at 12:00Z on 2017-01-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2017-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
656 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

360 
WWUS43 KFSD 232059
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
259 PM CST MON JAN 23 2017

...SIGNIFICANT SNOW AMOUNTS EXPECTED ON TUESDAY...

SDZ038-039-050-052>054-057>060-063>065-068-069-240500-
/O.UPG.KFSD.WS.A.0002.170124T0600Z-170125T1200Z/
/O.NEW.KFSD.WS.W.0001.170124T0600Z-170125T1200Z/
BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-BRULE-AURORA-
DAVISON-HANSON-CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-
259 PM CST MON JAN 23 2017

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM
CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW, WHICH IS IN EFFECT FROM MIDNIGHT 
TONIGHT TO 6 AM CST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.


* TIMING...SNOW IS LIKELY ALL DAY TUESDAY BEFORE TAPERING OFF BY
  WEDNESDAY MORNING. THE HEAVIEST SNOW WILL FALL TUESDAY AFTERNOON
  AND EVENING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 7 TO 9 INCHES 
ARE POSSIBLE...WITH ISOLATED AMOUNTS UP TO 10 INCHES. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS 
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS 
  OVER 30 MPH INTO TUESDAY NIGHT. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE ON TUESDAY. ROADS WILL QUICKLY 
  BECOME SNOW COVERED ON TUESDAY. 

* ACCUMULATIONS...7 TO 9 INCHES WITH ISOLATED AMOUNTS UP TO 10
  INCHES

* WIND AND VISIBILITY...NORTH WIND 20 TO 30 MPH WITH GUSTS OVER 30
  MPH WILL RESULT IN VISIBILITY LESS THAN ONE MILE AT TIMES.

* WIND CHILL VALUES...0 TO 10 ABOVE ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. 
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO STRONG
WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.  IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ040-055-056-061-062-066-067-070-071-240500-
/O.UPG.KFSD.WS.A.0002.170124T1200Z-170125T1800Z/
/O.NEW.KFSD.WS.W.0001.170124T1200Z-170125T1800Z/
LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY IA-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-LINCOLN MN-LYON MN-MURRAY-COTTONWOOD-
NOBLES-JACKSON-PIPESTONE-ROCK-DIXON-DAKOTA-BROOKINGS-LAKE-MOODY-
MCCOOK-MINNEHAHA-TURNER-LINCOLN SD-CLAY SD-UNION-
259 PM CST MON JAN 23 2017

...WINTER STORM WARNING IN EFFECT FROM 6 AM TUESDAY TO NOON CST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW, WHICH IS IN EFFECT FROM 6 AM 
TUESDAY TO NOON CST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.


* TIMING...SNOW WILL FALL ALL DAY TUESDAY BEFORE TAPERING OFF ON
  WEDNESDAY MORNING. THE HEAVIEST SNOW WILL FALL ON TUESDAY
  AFTERNOON AND EVENING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 8 TO 10 INCHES
  ARE POSSIBLE...WITH ISOLATED AMOUNTS UP TO 12". 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS 
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS 
  OVER 30 MPH TUESDAY NIGHT. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS TUESDAY... 
  INCLUDING DURING THE TUESDAY EVENING COMMUTE...AS ROADS WILL 
  BECOME SNOW COVERED QUICKLY. 

* ACCUMULATIONS...8 TO 10 INCHES WITH ISOLATED AMOUNTS UP TO 12"

* WIND AND VISIBILITY...NORTH WIND 20 TO 30 MPH WITH GUSTS OVER 30
  MPH.

* WIND CHILL VALUES...10 TO 15 ABOVE ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. 
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO STRONG
WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.  IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.


&&

$$
8 follow-up statements
709 
WWUS43 KFSD 240324
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
924 PM CST MON JAN 23 2017

...SIGNIFICANT SNOW AMOUNTS EXPECTED ON TUESDAY...

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ040-055-056-061-062-066-067-070-071-241200-
/O.CON.KFSD.WS.W.0001.170124T1200Z-170125T1800Z/
LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY IA-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-LINCOLN MN-LYON MN-MURRAY-COTTONWOOD-
NOBLES-JACKSON-PIPESTONE-ROCK-DIXON-DAKOTA-BROOKINGS-LAKE-MOODY-
MCCOOK-MINNEHAHA-TURNER-LINCOLN SD-CLAY SD-UNION-
924 PM CST MON JAN 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM TUESDAY TO
NOON CST WEDNESDAY...

* TIMING...LIGHT SNOW MAY BEGIN BY THE LATE MORNING HOURS OR
  AROUND MID-DAY...WITH HEAVY SNOW DEVELOPING BY THE AFTERNOON AND
  EVENING. SNOW WILL GRADUALLY END WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 6 TO 10 INCHES
  ARE POSSIBLE...WITH ISOLATED AMOUNTS UP TO 12". THERE MAY BE A
  VERY HEAVY LOCALIZED BAND OF HEAVY SNOW POSSIBLE BY TUESDAY
  AFTERNOON. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS 
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS 
  OVER 30 MPH TUESDAY NIGHT. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS TUESDAY... 
  INCLUDING DURING THE TUESDAY EVENING COMMUTE...AS ROADS WILL 
  BECOME SNOW COVERED QUICKLY. 


* WIND AND VISIBILITY...NORTH WIND 20 TO 30 MPH WITH GUSTS OVER 
  30 MPH. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY. 
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ038-039-050-052>054-057>060-063>065-068-069-241200-
/O.CON.KFSD.WS.W.0001.170124T0600Z-170125T1200Z/
BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-BRULE-AURORA-
DAVISON-HANSON-CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-
924 PM CST MON JAN 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
WEDNESDAY...

* TIMING...SNOW WILL DEVELOP BY DAYBREAK...BECOMING MODERATE TO
  HEAVY THROUGH THE MORNING HOURS. HEAVY SNOW MAY CONTINUE THROUGH
  THE AFTERNOON AND EVENING WITH SNOW ENDING WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 6 TO 10 INCHES
  ARE POSSIBLE.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS 
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS 
  OVER 30 MPH INTO TUESDAY NIGHT. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING
  DURING THE EVENING COMMUTE ON TUESDAY. ROADS WILL QUICKLY BECOME
  SNOW COVERED ON TUESDAY. 

* WIND AND VISIBILITY...NORTH WIND 20 TO 30 MPH WITH GUSTS OVER 
  30 MPH WILL RESULT IN VISIBILITY LESS THAN ONE MILE AT TIMES. 


PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR
HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS...AND VISIBILITIES
WILL BE LIMITED FURTHER DUE TO STRONG WINDS BLOWING SNOW AROUND. 
ONLY TRAVEL IN AN EMERGENCY.  IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$
773 
WWUS43 KFSD 240956
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
356 AM CST TUE JAN 24 2017

...SIGNIFICANT SNOW AMOUNTS EXPECTED TODAY THROUGH TONIGHT...

SDZ050-052-057-058-063-064-241800-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-170125T1200Z/
/O.NEW.KFSD.WS.W.0002.170124T1000Z-170125T1800Z/
GREGORY-JERAULD-BRULE-AURORA-CHARLES MIX-DOUGLAS-
356 AM CST TUE JAN 24 2017

...WINTER STORM WARNING IN EFFECT UNTIL NOON CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW, WHICH IS IN EFFECT
UNTIL NOON CST WEDNESDAY.

* TIMING...SNOW WILL DEVELOP BY DAYBREAK...BECOMING MODERATE TO
  HEAVY THROUGH THE MORNING HOURS. PERIODS OF HEAVY SNOW WILL
  CONTINUE THROUGH THE AFTERNOON AND EVENING...WITH SNOW ENDING
  WEDNESDAY MORNING. AREAS OF BLOWING SNOW WILL DEVELOP THIS
  AFTERNOON AND CONTINUE THROUGH WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 8 TO 14 INCHES
  ARE POSSIBLE...WITH THE HIGHEST AMOUNTS SOUTH OF SOUTH DAKOTA
  HIGHWAY 44...TOWARD THE NEBRASKA BORDER.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS
  OVER 30 MPH INTO WEDNESDAY MORNING.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING
  DURING THE EVENING COMMUTE ON TUESDAY. ROADS WILL QUICKLY BECOME
  SNOW COVERED TODAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS 
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. 
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL 
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO STRONG
WINDS BLOWING SNOW AROUND. ONLY TRAVEL IN AN EMERGENCY. IF YOU 
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR 
VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ053-059-060-065-068-069-241800-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-170125T1200Z/
/O.NEW.KFSD.WS.W.0002.170124T1200Z-170125T1800Z/
SANBORN-DAVISON-HANSON-HUTCHINSON-BON HOMME-YANKTON-
356 AM CST TUE JAN 24 2017

...WINTER STORM WARNING IN EFFECT UNTIL NOON CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW, WHICH IS IN EFFECT
UNTIL NOON CST WEDNESDAY.

* TIMING...SNOW WILL DEVELOP BY THROUGH THE MORNING...BECOMING
  MODERATE TO HEAVY BY MIDDAY. PERIODS OF HEAVY SNOW WILL CONTINUE
  THROUGH THE AFTERNOON AND EVENING WITH SNOW ENDING WEDNESDAY
  MORNING. AREAS OF BLOWING SNOW WILL DEVELOP THIS AFTERNOON AND
  CONTINUE THROUGH WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 8 TO 14
  INCHES...WITH THE HIGHEST AMOUNTS NEAR THE MISSOURI RIVER.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS
  OVER 30 MPH INTO WEDNESDAY MORNING. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME SNOW
  COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS... 

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS 
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. 
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL 
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO STRONG
WINDS BLOWING SNOW AROUND. ONLY TRAVEL IN AN EMERGENCY. IF YOU 
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR 
VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ054-241800-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-170125T1200Z/
/O.NEW.KFSD.WS.W.0002.170124T1800Z-170125T1800Z/
MINER-
356 AM CST TUE JAN 24 2017

...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO NOON CST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW, WHICH IS IN EFFECT
FROM NOON TODAY TO NOON CST WEDNESDAY. 

* TIMING...SNOW WILL DEVELOP BY MIDDAY...QUICKLY BECOMING MODERATE
  TO HEAVY THROUGH THE AFTERNOON AND EVENING. SNOW WILL END
  WEDNESDAY MORNING. PATCHY BLOWING SNOW WILL DEVELOP THIS
  AFTERNOON AND CONTINUE THROUGH WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS
  OVER 30 MPH INTO WEDNESDAY MORNING. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME SNOW
  COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS... 

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS 
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. 
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL 
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO STRONG
WINDS BLOWING SNOW AROUND. ONLY TRAVEL IN AN EMERGENCY. IF YOU 
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR 
VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ038-241800-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-170125T1200Z/
/O.NEW.KFSD.WW.Y.0004.170124T1200Z-170125T1800Z/
BEADLE-
356 AM CST TUE JAN 24 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT UNTIL NOON CST 
WEDNESDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. 

* TIMING...SNOW WILL DEVELOP THROUGH THE MORNING...AND CONTINUE
  THROUGH TONIGHT...ENDING WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES
  ARE EXPECTED.

* WINDS / VISIBILITIES...EXPECT REDUCTIONS IN VISIBILITY IN THE
  FALLING SNOW. PATCHY BLOWING SNOW WILL ALSO BE POSSIBLE THIS
  AFTERNOON THROUGH WEDNESDAY MORNING...AS NORTH WINDS INCREASE TO
  20 TO 30 MPH.

* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS...INCLUDING DURING
  THE EVENING COMMUTE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS... 

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

MNZ071-072-SDZ040-241800-
/O.CAN.KFSD.WS.W.0001.170124T1200Z-170125T1800Z/
/O.NEW.KFSD.WW.Y.0004.170124T1800Z-170125T1800Z/
LINCOLN MN-LYON MN-BROOKINGS-
356 AM CST TUE JAN 24 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO NOON CST
WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT FROM NOON TODAY TO 
NOON CST WEDNESDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. 

* TIMING...SNOW WILL DEVELOP EARLY THIS AFTERNOON...AND CONTINUE
  THROUGH TONIGHT...ENDING WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES
  ARE EXPECTED...WITH THE HIGHEST AMOUNTS SOUTH OF HIGHWAY 14.

* WINDS / VISIBILITIES...EXPECT REDUCTIONS IN VISIBILITY IN THE
  FALLING SNOW. PATCHY BLOWING SNOW WILL ALSO BE POSSIBLE THIS
  AFTERNOON THROUGH WEDNESDAY MORNING...AS NORTH WINDS INCREASE TO
  20 TO 30 MPH.

* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS...INCLUDING DURING
  THE EVENING COMMUTE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

SDZ039-241800-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-170125T1200Z/
/O.NEW.KFSD.WW.Y.0004.170124T1800Z-170125T1800Z/
KINGSBURY-
356 AM CST TUE JAN 24 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO NOON CST
WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT FROM NOON TODAY TO 
NOON CST WEDNESDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. 

* TIMING...SNOW WILL DEVELOP EARLY THIS AFTERNOON...AND CONTINUE
  THROUGH TONIGHT...ENDING WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES
  ARE EXPECTED...WITH THE HIGHEST AMOUNTS SOUTH OF HIGHWAY 14.

* WINDS / VISIBILITIES...EXPECT REDUCTIONS IN VISIBILITY IN THE
  FALLING SNOW. PATCHY BLOWING SNOW WILL ALSO BE POSSIBLE THIS
  AFTERNOON THROUGH WEDNESDAY MORNING...AS NORTH WINDS INCREASE TO
  20 TO 30 MPH.

* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS...INCLUDING DURING
  THE EVENING COMMUTE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS... 

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

IAZ001-MNZ080-089-097-098-SDZ055-056-061-062-241800-
/O.EXT.KFSD.WS.W.0001.170124T1800Z-170125T1800Z/
LYON IA-MURRAY-NOBLES-PIPESTONE-ROCK-LAKE-MOODY-MCCOOK-MINNEHAHA-
356 AM CST TUE JAN 24 2017

...WINTER STORM WARNING NOW IN EFFECT FROM NOON TODAY TO NOON CST
WEDNESDAY...

* TIMING...SNOW WILL DEVELOP IN THE LATE MORNING TO EARLY
  AFTERNOON...QUICKLY BECOMING MODERATE TO HEAVY. PERIODS OF HEAVY
  SNOW WILL CONTINUE THROUGH THE AFTERNOON AND EVENING WITH SNOW
  ENDING WEDNESDAY MORNING. AREAS OF BLOWING SNOW WILL DEVELOP
  THIS AFTERNOON AND CONTINUE THROUGH WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS WILL AVERAGE 5 TO
  10 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE...ESPECIALLY
  SOUTH OF INTERSTATE 90.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS
  OVER 30 MPH INTO WEDNESDAY MORNING. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME SNOW
  COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ081-090-241800-
/O.EXT.KFSD.WS.W.0001.170124T1800Z-170126T0000Z/
OSCEOLA-DICKINSON-O'BRIEN-CLAY IA-CHEROKEE-BUENA VISTA-IDA-
COTTONWOOD-JACKSON-
356 AM CST TUE JAN 24 2017

...WINTER STORM WARNING NOW IN EFFECT FROM NOON TODAY TO 6 PM CST
WEDNESDAY...

* TIMING...SNOW WILL DEVELOP IN THE LATE MORNING TO EARLY
  AFTERNOON...QUICKLY BECOMING MODERATE TO HEAVY. PERIODS OF HEAVY
  SNOW WILL CONTINUE THROUGH THE AFTERNOON AND EVENING WITH SNOW
  ENDING WEDNESDAY AFTERNOON. AREAS OF BLOWING SNOW WILL DEVELOP
  THIS AFTERNOON AND CONTINUE THROUGH WEDNESDAY.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS WILL AVERAGE 8 TO
  14 INCHES...WITH THE HEAVIEST AMOUNTS EXPECTED TOWARD HIGHWAY 18
  IN NORTHWEST IOWA.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS
  OVER 30 MPH THROUGH WEDNESDAY. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME SNOW
  COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ012-020-031-NEZ013-014-SDZ066-067-070-071-241800-
/O.CON.KFSD.WS.W.0001.170124T1200Z-170125T1800Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-TURNER-LINCOLN SD-CLAY SD-
UNION-
356 AM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL DEVELOP THROUGH THE LATE MORNING...QUICKLY
  BECOMING MODERATE TO HEAVY IN THE EARLY AFTERNOON. PERIODS OF
  HEAVY SNOW WILL CONTINUE THROUGH THE AFTERNOON AND EVENING WITH
  SNOW ENDING WEDNESDAY MORNING. AREAS OF BLOWING SNOW WILL
  DEVELOP THIS AFTERNOON AND CONTINUE THROUGH WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 9 TO 14 INCHES.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW...AND ALSO IN BLOWING SNOW AS
  NORTHERLY WINDS INCREASE TO 20 TO 30 MPH WITH OCCASIONAL GUSTS
  OVER 30 MPH INTO WEDNESDAY MORNING. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME SNOW
  COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$
906 
WWUS43 KFSD 241733
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1133 AM CST TUE JAN 24 2017

...SIGNIFICANT SNOW AMOUNTS EXPECTED TODAY THROUGH TONIGHT...

SDZ050-052-057-058-063-064-250145-
/O.CON.KFSD.WS.W.0002.000000T0000Z-170125T1800Z/
GREGORY-JERAULD-BRULE-AURORA-CHARLES MIX-DOUGLAS-
1133 AM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION THROUGH
  THE EARLY AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES THIS
  AFTERNOON AND EVENING HOURS. SNOW WILL PERSIST TONIGHT...BEFORE
  ENDING WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 8 TO 14 
  INCHES ARE POSSIBLE...WITH THE HIGHEST AMOUNTS SOUTH OF SOUTH 
  DAKOTA HIGHWAY 44...TOWARD THE NEBRASKA BORDER. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 20 TO
  30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO WEDNESDAY
  MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND DRIFTING SNOW.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE ON TUESDAY. ROADS WILL QUICKLY 
  BECOME SNOW COVERED TODAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND. ONLY TRAVEL IN AN EMERGENCY. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ053-059-060-065-068-069-250145-
/O.CON.KFSD.WS.W.0002.000000T0000Z-170125T1800Z/
SANBORN-DAVISON-HANSON-HUTCHINSON-BON HOMME-YANKTON-
1133 AM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION THROUGH
  THE EARLY AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES THIS
  AFTERNOON AND EVENING HOURS. SNOW WILL PERSIST TONIGHT...BEFORE
  ENDING WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 8 TO 14 
  INCHES...WITH THE HIGHEST AMOUNTS NEAR THE MISSOURI RIVER. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 20 TO
  30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO WEDNESDAY
  MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND DRIFTING SNOW.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND. ONLY TRAVEL IN AN EMERGENCY. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ012-020-031-NEZ013-014-SDZ066-067-070-071-250145-
/O.CON.KFSD.WS.W.0001.000000T0000Z-170125T1800Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-TURNER-LINCOLN SD-CLAY SD-
UNION-
1133 AM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION THROUGH
  THE EARLY AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES THIS
  AFTERNOON AND EVENING HOURS. SNOW WILL PERSIST TONIGHT...BEFORE
  ENDING WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 9 TO 14 
  INCHES.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 20 TO
  30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO WEDNESDAY
  MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND DRIFTING SNOW.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ001-MNZ080-089-097-098-SDZ055-056-061-062-250145-
/O.CON.KFSD.WS.W.0001.170124T1800Z-170125T1800Z/
LYON IA-MURRAY-NOBLES-PIPESTONE-ROCK-LAKE-MOODY-MCCOOK-MINNEHAHA-
1133 AM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION THROUGH
  THE EARLY AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES THIS
  AFTERNOON AND EVENING HOURS. SNOW WILL PERSIST TONIGHT...BEFORE
  ENDING WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS WILL AVERAGE 5 
  TO 10 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE...
  ESPECIALLY SOUTH OF INTERSTATE 90. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 20 TO
  30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO WEDNESDAY
  MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND DRIFTING SNOW.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ054-250145-
/O.CON.KFSD.WS.W.0002.170124T1800Z-170125T1800Z/
MINER-
1133 AM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL DEVELOP BY MID AFTERNOON...QUICKLY BECOMING
  MODERATE TO HEAVY THROUGH THE EVENING. SNOW WILL END WEDNESDAY
  MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 20 TO
  30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO WEDNESDAY
  MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND DRIFTING SNOW.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND. ONLY TRAVEL IN AN EMERGENCY. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ081-090-250145-
/O.CON.KFSD.WS.W.0001.170124T1800Z-170126T0000Z/
OSCEOLA-DICKINSON-O'BRIEN-CLAY IA-CHEROKEE-BUENA VISTA-IDA-
COTTONWOOD-JACKSON-
1133 AM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION THROUGH
  THE EARLY AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES THIS
  AFTERNOON AND EVENING HOURS. SNOW WILL PERSIST TONIGHT...BEFORE
  ENDING WEDNESDAY MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS WILL AVERAGE 8 
  TO 14 INCHES...WITH THE HEAVIEST AMOUNTS EXPECTED TOWARD 
  HIGHWAY 18 IN NORTHWEST IOWA. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 20 TO
  30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO WEDNESDAY
  MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND DRIFTING SNOW.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ038-250145-
/O.CON.KFSD.WW.Y.0004.000000T0000Z-170125T1800Z/
BEADLE-
1133 AM CST TUE JAN 24 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL DEVELOP BY MID AFTERNOON...AND CONTINUE 
  THROUGH TONIGHT...ENDING WEDNESDAY MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES 
  ARE EXPECTED. 

* WINDS / VISIBILITIES...EXPECT REDUCTIONS IN VISIBILITY IN THE 
  FALLING SNOW. PATCHY BLOWING SNOW WILL ALSO BE POSSIBLE THIS 
  AFTERNOON THROUGH WEDNESDAY MORNING...AS NORTH WINDS INCREASE 
  TO 20 TO 30 MPH. 

* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS...INCLUDING DURING 
  THE EVENING COMMUTE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

MNZ071-072-SDZ039-040-250145-
/O.CON.KFSD.WW.Y.0004.170124T1800Z-170125T1800Z/
LINCOLN MN-LYON MN-KINGSBURY-BROOKINGS-
1133 AM CST TUE JAN 24 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL DEVELOP BY LATE AFTERNOON...AND CONTINUE  
  THROUGH TONIGHT...ENDING WEDNESDAY MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES 
  ARE EXPECTED...WITH THE HIGHEST AMOUNTS SOUTH OF HIGHWAY 14. 

* WINDS / VISIBILITIES...EXPECT REDUCTIONS IN VISIBILITY IN THE 
  FALLING SNOW. PATCHY BLOWING SNOW WILL ALSO BE POSSIBLE THIS 
  AFTERNOON THROUGH WEDNESDAY MORNING...AS NORTH WINDS INCREASE 
  TO 20 TO 30 MPH. 

* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS...INCLUDING DURING 
  THE EVENING COMMUTE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$
271 
WWUS43 KFSD 242142
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
342 PM CST TUE JAN 24 2017

...SIGNIFICANT SNOW AMOUNTS EXPECTED TODAY THROUGH TONIGHT...

IAZ001-012-020-031-MNZ080-089-097-098-NEZ013-014-SDZ055-056-061-
062-066-067-070-071-250545-
/O.CON.KFSD.WS.W.0001.000000T0000Z-170125T1800Z/
LYON IA-SIOUX-PLYMOUTH-WOODBURY-MURRAY-NOBLES-PIPESTONE-ROCK-
DIXON-DAKOTA-LAKE-MOODY-MCCOOK-MINNEHAHA-TURNER-LINCOLN SD-
CLAY SD-UNION-
342 PM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE
  REGION...BECOMING MODERATE TO HEAVY AT TIMES THIS AFTERNOON AND
  EVENING. SNOW WILL PERSIST TONIGHT...BEFORE ENDING WEDNESDAY
  MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS WILL AVERAGE 5 
  TO 10 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE... 
  ESPECIALLY SOUTH OF INTERSTATE 90. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 
  20 TO 30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO 
  WEDNESDAY MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND 
  DRIFTING SNOW. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ050-052>054-057>060-063>065-068-069-250545-
/O.CON.KFSD.WS.W.0002.000000T0000Z-170125T1800Z/
GREGORY-JERAULD-SANBORN-MINER-BRULE-AURORA-DAVISON-HANSON-
CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-
342 PM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE
  REGION...BECOMING MODERATE TO HEAVY AT TIMES THIS AFTERNOON AND
  EVENING. SNOW WILL PERSIST TONIGHT...BEFORE ENDING WEDNESDAY
  MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 8 TO 14 
  INCHES...WITH THE HIGHEST AMOUNTS NEAR THE MISSOURI RIVER. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 
  20 TO 30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO 
  WEDNESDAY MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND 
  DRIFTING SNOW. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND. ONLY TRAVEL IN AN EMERGENCY. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ081-090-250545-
/O.CON.KFSD.WS.W.0001.000000T0000Z-170126T0000Z/
OSCEOLA-DICKINSON-O'BRIEN-CLAY IA-CHEROKEE-BUENA VISTA-IDA-
COTTONWOOD-JACKSON-
342 PM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION
  ...BECOMING MODERATE TO HEAVY AT TIMES THIS AFTERNOON AND
  EVENING. SNOW WILL PERSIST TONIGHT...BEFORE ENDING WEDNESDAY
  MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS WILL AVERAGE 8 
  TO 14 INCHES...WITH THE HEAVIEST AMOUNTS EXPECTED TOWARD 
  HIGHWAY 18 IN NORTHWEST IOWA. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 
  20 TO 30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO 
  WEDNESDAY MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND 
  DRIFTING SNOW. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

MNZ071-072-SDZ038>040-250545-
/O.CON.KFSD.WW.Y.0004.000000T0000Z-170125T1800Z/
LINCOLN MN-LYON MN-BEADLE-KINGSBURY-BROOKINGS-
342 PM CST TUE JAN 24 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL DEVELOP BY LATE AFTERNOON...AND CONTINUE 
  THROUGH TONIGHT...ENDING WEDNESDAY MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES 
  ARE EXPECTED...WITH THE HIGHEST AMOUNTS SOUTH OF HIGHWAY 14. 

* WINDS / VISIBILITIES...EXPECT REDUCTIONS IN VISIBILITY IN THE 
  FALLING SNOW. PATCHY BLOWING SNOW WILL ALSO BE POSSIBLE THIS 
  AFTERNOON THROUGH WEDNESDAY MORNING...AS NORTH WINDS INCREASE 
  TO 20 TO 30 MPH. 

* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS...INCLUDING DURING 
  THE EVENING COMMUTE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$
089 
WWUS43 KFSD 250319
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
919 PM CST TUE JAN 24 2017

...SIGNIFICANT SNOW AMOUNTS EXPECTED THROUGH TONIGHT...

IAZ001-012-020-031-MNZ080-089-097-098-NEZ013-014-SDZ055-056-061-
062-066-067-070-071-251130-
/O.CON.KFSD.WS.W.0001.000000T0000Z-170125T1800Z/
LYON IA-SIOUX-PLYMOUTH-WOODBURY-MURRAY-NOBLES-PIPESTONE-ROCK-
DIXON-DAKOTA-LAKE-MOODY-MCCOOK-MINNEHAHA-TURNER-LINCOLN SD-
CLAY SD-UNION-
919 PM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION... 
  BECOMING MODERATE TO HEAVY AT TIMES THIS AFTERNOON AND 
  EVENING. SNOW WILL PERSIST TONIGHT...BEFORE ENDING WEDNESDAY 
  MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS WILL AVERAGE 5 
  TO 10 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE... 
  ESPECIALLY SOUTH OF INTERSTATE 90. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 
  20 TO 30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO 
  WEDNESDAY MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND 
  DRIFTING SNOW. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ050-052>054-057>060-063>065-068-069-251130-
/O.CON.KFSD.WS.W.0002.000000T0000Z-170125T1800Z/
GREGORY-JERAULD-SANBORN-MINER-BRULE-AURORA-DAVISON-HANSON-
CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-
919 PM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION... 
  BECOMING MODERATE TO HEAVY AT TIMES THIS AFTERNOON AND 
  EVENING. SNOW WILL PERSIST TONIGHT...BEFORE ENDING WEDNESDAY 
  MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 8 TO 14 
  INCHES...WITH THE HIGHEST AMOUNTS NEAR THE MISSOURI RIVER. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 
  20 TO 30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO 
  WEDNESDAY MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND 
  DRIFTING SNOW. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND. ONLY TRAVEL IN AN EMERGENCY. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ081-090-251130-
/O.CON.KFSD.WS.W.0001.000000T0000Z-170126T0000Z/
OSCEOLA-DICKINSON-O'BRIEN-CLAY IA-CHEROKEE-BUENA VISTA-IDA-
COTTONWOOD-JACKSON-
919 PM CST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST
WEDNESDAY...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION  ...
  BECOMING MODERATE TO HEAVY AT TIMES THIS AFTERNOON AND 
  EVENING. SNOW WILL PERSIST TONIGHT...BEFORE ENDING WEDNESDAY 
  MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS WILL AVERAGE 8 
  TO 14 INCHES...WITH THE HEAVIEST AMOUNTS EXPECTED TOWARD 
  HIGHWAY 18 IN NORTHWEST IOWA. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY 
  ARE POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS INCREASE TO 
  20 TO 30 MPH WITH OCCASIONAL GUSTS OVER 30 MPH TONIGHT INTO 
  WEDNESDAY MORNING...WHICH MAY PRODUCE PATCHY BLOWING AND 
  DRIFTING SNOW. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS...INCLUDING 
  DURING THE EVENING COMMUTE TODAY. ROADS WILL QUICKLY BECOME 
  SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

MNZ071-072-SDZ038>040-251130-
/O.CON.KFSD.WW.Y.0004.000000T0000Z-170125T1800Z/
LINCOLN MN-LYON MN-BEADLE-KINGSBURY-BROOKINGS-
919 PM CST TUE JAN 24 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
WEDNESDAY...

* TIMING...SNOW WILL DEVELOP BY LATE AFTERNOON...AND CONTINUE 
  THROUGH TONIGHT...ENDING WEDNESDAY MORNING. 

* SNOW ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 2 TO 5 INCHES 
  ARE EXPECTED...WITH THE HIGHEST AMOUNTS SOUTH OF HIGHWAY 14. 

* WINDS / VISIBILITIES...EXPECT REDUCTIONS IN VISIBILITY IN THE 
  FALLING SNOW. PATCHY BLOWING SNOW WILL ALSO BE POSSIBLE THIS 
  AFTERNOON THROUGH WEDNESDAY MORNING...AS NORTH WINDS INCREASE 
  TO 20 TO 30 MPH. 

* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS...INCLUDING DURING 
  THE EVENING COMMUTE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$
735 
WWUS43 KFSD 250940
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
340 AM CST WED JAN 25 2017

IAZ001-012-020-031-MNZ080-089-097-098-NEZ013-014-SDZ055-056-061-
062-066-067-070-071-251745-
/O.CON.KFSD.WS.W.0001.000000T0000Z-170125T1800Z/
LYON IA-SIOUX-PLYMOUTH-WOODBURY-MURRAY-NOBLES-PIPESTONE-ROCK-
DIXON-DAKOTA-LAKE-MOODY-MCCOOK-MINNEHAHA-TURNER-LINCOLN SD-
CLAY SD-UNION-
340 AM CST WED JAN 25 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* TIMING...SNOW WILL GRADUALLY LIGHTEN THROUGH THE MORNING HOURS
  AND BECOME VERY LIGHT BY LATE MORNING. 

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF 1 TO 2 INCHES
  WILL BE POSSIBLE.

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS OF 20 TO 35 MPH
  WILL PRODUCE PATCHY BLOWING AND DRIFTING SNOW. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS. ROADS ARE SNOW 
  COVERED AND DRIFTING IS LIKELY IN MANY LOCATIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ050-052>054-057>060-063>065-068-069-251745-
/O.CON.KFSD.WS.W.0002.000000T0000Z-170125T1800Z/
GREGORY-JERAULD-SANBORN-MINER-BRULE-AURORA-DAVISON-HANSON-
CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-
340 AM CST WED JAN 25 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* TIMING...SNOW WILL GRADUALLY LIGHTEN THROUGH THE MORNING HOURS
  AND BECOME VERY LIGHT BY LATE MORNING. 

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF AROUND AN INCH
  WILL BE POSSIBLE.

* WINDS / VISIBILITIES...REDUCTIONS IN VISIBILITY ARE LIKELY IN THE
  FALLING SNOW. NORTHERLY WINDS OF 20 TO 35 MPH WILL PRODUCE 
  PATCHY BLOWING AND DRIFTING SNOW. 

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS. ROADS ARE SNOW 
  COVERED AND DRIFTING IS LIKELY IN MANY LOCATIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND. ONLY TRAVEL IN AN EMERGENCY. IF
YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ081-090-251745-
/O.CON.KFSD.WS.W.0001.000000T0000Z-170126T0000Z/
OSCEOLA-DICKINSON-O'BRIEN-CLAY IA-CHEROKEE-BUENA VISTA-IDA-
COTTONWOOD-JACKSON-
340 AM CST WED JAN 25 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* TIMING...SNOW WILL CONTINUE TO EXPAND ACROSS THE REGION...
  BECOMING MODERATE AT TIMES THIS MORNING. THE SNOW WILL PERSIST
  INTO THE AFTERNOON. 

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF 2 TO 4 INCHES 
WILL BE POSSIBLE. 

* WINDS / VISIBILITIES...SIGNIFICANT REDUCTIONS IN VISIBILITY ARE
  POSSIBLE IN THE FALLING SNOW. NORTHERLY WINDS WILL INCREASE TO
  20 TO 35 MPH WHICH WILL PRODUCE BLOWING AND DRIFTING SNOW.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS. ROADS ARE SNOW 
  COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

MNZ071-072-SDZ038>040-251745-
/O.CON.KFSD.WW.Y.0004.000000T0000Z-170125T1800Z/
LINCOLN MN-LYON MN-BEADLE-KINGSBURY-BROOKINGS-
340 AM CST WED JAN 25 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TODAY...

* TIMING...SNOW WILL BE LIGHT THROUGH THE MORNING HOURS. 

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF LESS THAN 1
  INCH WILL BE POSSIBLE.

* WINDS / VISIBILITIES...NORTH WINDS OF 20 TO 35 MPH WILL LIKELY
  CAUSE SOME BLOWING AND DRIFTING OF SNOW.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS. ROADS ARE SNOW 
  COVERED AND DRIFTING IS LIKELY IN MANY LOCATIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$
000 
WWUS43 KFSD 251815
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1215 PM CST WED JAN 25 2017

IAZ001-012-020-031-MNZ080-089-097-098-NEZ013-014-SDZ055-056-061-
062-066-067-070-071-251915-
/O.EXP.KFSD.WS.W.0001.000000T0000Z-170125T1800Z/
LYON IA-SIOUX-PLYMOUTH-WOODBURY-MURRAY-NOBLES-PIPESTONE-ROCK-
DIXON-DAKOTA-LAKE-MOODY-MCCOOK-MINNEHAHA-TURNER-LINCOLN SD-
CLAY SD-UNION-
1215 PM CST WED JAN 25 2017

...WINTER STORM WARNING HAS EXPIRED...

LIGHT SNOW WILL CONTINUE TO DIMINISH FROM WEST TO EAST THROUGH 
SUNSET. ADDITIONAL SNOWFALL AMOUNTS OF UP TO 1 INCH WILL BE 
POSSIBLE. GUSTY NORTHWEST WINDS WILL CAUSE SOME PATCHY
BLOWING AND DRIFTING OF THE SNOWFALL.

$$

SDZ050-052>054-057>060-063>065-068-069-251915-
/O.EXP.KFSD.WS.W.0002.000000T0000Z-170125T1800Z/
GREGORY-JERAULD-SANBORN-MINER-BRULE-AURORA-DAVISON-HANSON-
CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-
1215 PM CST WED JAN 25 2017

...WINTER STORM WARNING HAS EXPIRED...

LIGHT SNOW WILL CONTINUE TO DIMINISH FROM WEST TO EAST THROUGH 
MID AFTERNOON. ADDITIONAL SNOWFALL AMOUNTS OF UP TO A HALF INCH 
WILL BE POSSIBLE. GUSTY NORTHWEST WINDS WILL CAUSE SOME PATCHY
BLOWING AND DRIFTING OF THE SNOWFALL.

$$

MNZ071-072-SDZ038>040-251915-
/O.EXP.KFSD.WW.Y.0004.000000T0000Z-170125T1800Z/
LINCOLN MN-LYON MN-BEADLE-KINGSBURY-BROOKINGS-
1215 PM CST WED JAN 25 2017

...WINTER WEATHER ADVISORY HAS EXPIRED...

LIGHT SNOW WILL CONTINUE TO DIMINISH FROM WEST TO EAST THROUGH 
THE AFTERNOON. ADDITIONAL SNOWFALL AMOUNTS OF UP TO A HALF INCH 
WILL BE POSSIBLE. GUSTY NORTHWEST WINDS WILL CAUSE SOME PATCHY 
BLOWING AND DRIFTING OF THE SNOWFALL.

$$

IAZ002-003-013-014-021-022-032-MNZ081-090-260000-
/O.CON.KFSD.WS.W.0001.000000T0000Z-170126T0000Z/
OSCEOLA-DICKINSON-O'BRIEN-CLAY IA-CHEROKEE-BUENA VISTA-IDA-
COTTONWOOD-JACKSON-
1215 PM CST WED JAN 25 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE ACROSS THE AREA 
 THROUGH THE AFTERNOON.

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS UP TO 2 INCHES 
  WILL BE POSSIBLE.

* WINDS / VISIBILITIES...NORTHWESTERLY AROUND 15 TO 30 MPH WILL
  PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. VISIBILITY WILL BE
  REDUCED TO A MILE AT TIMES IN SNOWFALL.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS. ROADS ARE SNOW 
  COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO
STRONG WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.
IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER
IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$
309 
WWUS43 KFSD 260003
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
603 PM CST WED JAN 25 2017

IAZ002-003-013-014-021-022-032-MNZ081-090-260115-
/O.EXP.KFSD.WS.W.0001.000000T0000Z-170126T0000Z/
OSCEOLA-DICKINSON-O'BRIEN-CLAY IA-CHEROKEE-BUENA VISTA-IDA-
COTTONWOOD-JACKSON-
603 PM CST WED JAN 25 2017

...WINTER STORM WARNING HAS EXPIRED...

SNOW IS TAPERING OFF AND VISIBILITIES HAVE IMPROVED.

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sioux Falls, SD wrote its last area forecast discussion before this winter storm warning went out at Jan 23, 11:15 AM CST, 3 hours 44 minutes earlier.

Area forecast discussion, Jan 23, 11:15 AM CST, 3 hours 44 minutes before
Area Forecast Discussion
National Weather Service Sioux Falls SD
1115 AM CST Mon Jan 23 2017

.SHORT TERM...(Today and Tonight)
Issued at 406 AM CST Mon Jan 23 2017

Widespread stratus across the forecast area early this morning will
be sticking around through today as high pressure over the area
begins to move off slowly to the east through this afternoon. Low
pressure over central Rockies will then push into central Plains
late this afternoon through tonight. Inverted trough and mid level
frontal zone expected to set up in the vicinity of I-90 east of the
Missouri River after midnight tonight. Will start with Pops west of
the James River mid to late afternoon, and spread these east through
tonight, with rapid increase in chances toward Tuesday morning as
low starts lifting more northeastward into Nebraska. Western areas
south of I-90 should be warm enough for rain or a rain/snow mix
through early to mid evening if any precipitation gets going, with
only snow for all areas after midnight.

Expect pretty small diurnal temperature changes today due to cloud
cover, except for our southwestern areas where some stronger warm
advection gets going closer to the central Rockies low. Low
temperatures tonight will again stay pretty mild in the upper 20s
with continued warm advection ahead of the low and widespread cloud
cover.

.LONG TERM...(Tuesday through Sunday)
Issued at 406 AM CST Mon Jan 23 2017

Focus remains on the medium range winter storm slated to affect the
region Tuesday into Wednesday. Still some differences among the
models regarding timing/track, primarily with the 23/00Z ECMWF now
trending slower and farther south than its previously consistent
runs.

Tuesday will begin with a surface low beginning to move east out of
the Central Rockies, somewhere near the western KS/NE border (or
possibly farther south, per the latest ECMWF), with a 120-130+kt
upper jet from New Mexico into Missouri as it rounds the base of an
elongated mid-upper level trough. Initially seeing a dry layer below
750mb over eastern portions of the forecast area very early Tuesday,
but this layer quickly saturates as strong isentropic lift develops
across the entire area in the 290-300K layer. Would anticipate a
rapid increase in coverage/intensity of precipitation as it expands
east Tuesday morning, aided by an intensifying mid-level front which
develops from the lower James River Valley into southwest Minnesota
or northwest Iowa by 18Z Tuesday. Again, location of the strongest
frontogenesis varies due to the north-south differences among the
models, with potential placement anywhere from near Highway 20 on
the southern end of the spectrum, to just north of I-90 on the
north end. Similarly, 850mb low placement varies from southwest of
Lincoln NE to near Sioux City IA by 25/00Z.

By Tuesday evening, stronger frontogenetical forcing shifts east of
the forecast area as the upper trough axis nears the Nebraska/Iowa
border, but some indications of a weak TroWAL lagging back across
northwest Iowa. This should provide support for additional moderate
snowfall in this area through Tuesday night, though with the upper
trough slow to exit the area, most of the area will continue to see
at least light accumulations through the night.

Intensity and coverage of snowfall will continue to decrease through
Wednesday as the upper trough pulls away to the east, though could
see spotty flurries/light snow continue into the afternoon east of
the James Valley as a trailing vorticity lobe slides into the back
side of the trough. All in all, continues to look like a broad area
of 4-8" of snowfall across the forecast area, but with uncertainties
in placement of the stronger frontogenesis and resulting potential
for more focused snow bands, coordinated with surrounding offices
and opted to leave Winter Storm Watch in place for now.

With focus on the upcoming storm system, little change was made in
the longer range of the forecast. Continues to look dry beyond
Wednesday, with a cool down for the latter part of the work week.
Potential for some warming again through next weekend, though
temperatures will surely be impacted by the upcoming snowfall.

&&

.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1107 AM CST Mon Jan 23 2017

Tricky aviation forecast for the next 24 hours. IFR and MVFR
ceilings blanketing the area are expected to improve slightly to
MVFR and low end VFR between 18z and 00z. Scattered Light snow
will begin moving into the area from the west after 00z, but will
become more numerous around 10z Tuesday through the end of the
TAF period. Expect IFR ceilings and visibilities in snowfall,
dropping to LIFR at times in the more intense snow.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...Winter Storm Watch from Tuesday morning through Wednesday
     morning for SDZ040-055-056-061-062-066-067-070-071.

     Winter Storm Watch from late tonight through late Tuesday night
     for SDZ038-039-050-052>054-057>060-063>065-068-069.

MN...Winter Storm Watch from Tuesday morning through Wednesday
     morning for MNZ071-072-080-081-089-090-097-098.

IA...Winter Storm Watch from Tuesday morning through Wednesday
     morning for IAZ001>003-012>014-020>022-031-032.

NE...Winter Storm Watch from Tuesday morning through Wednesday
     morning for NEZ013-014.

&&

SHORT TERM...MG
LONG TERM...JH
AVIATION...
Hazardous weather outlook, Jan 23, 12:10 PM CST, 2 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1210 PM CST MON JAN 23 2017

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ039-040-053>056-059>062-064>071-241815-
LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY IA-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-LINCOLN MN-LYON MN-MURRAY-COTTONWOOD-
NOBLES-JACKSON-PIPESTONE-ROCK-DIXON-DAKOTA-KINGSBURY-BROOKINGS-
SANBORN-MINER-LAKE-MOODY-DAVISON-HANSON-MCCOOK-MINNEHAHA-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN SD-BON HOMME-YANKTON-CLAY SD-UNION-
1210 PM CST MON JAN 23 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST IOWA,
WEST CENTRAL IOWA, SOUTHWEST MINNESOTA, NORTHEAST NEBRASKA, EAST
CENTRAL SOUTH DAKOTA, SOUTH CENTRAL SOUTH DAKOTA, AND SOUTHEAST
SOUTH DAKOTA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

ACCUMULATING SNOW IS EXPECTED ACROSS THE REGION BEGINNING AROUND
DAYBREAK TUESDAY AND CONTINUING THROUGH WEDNESDAY MORNING. THE
HEAVIEST SNOW WILL FALL TUESDAY AFTERNOON AND EVENING. STORM TOTAL
ACCUMULATIONS OF 4 TO 8 INCHES WILL BE POSSIBLE. A WINTER STORM
WATCH IS IN EFFECT FOR TUESDAY INTO WEDNESDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT.

SDZ038-050-052-057-058-063-241815-
BEADLE-GREGORY-JERAULD-BRULE-AURORA-CHARLES MIX-
1210 PM CST MON JAN 23 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL SOUTH
DAKOTA, EAST CENTRAL SOUTH DAKOTA, AND SOUTH CENTRAL SOUTH
DAKOTA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

LIGHT SNOWFALL IS EXPECTED TO DEVELOP LATE THIS EVENING AND
CONTINUE OVERNIGHT. UP TO 1 INCH OF SNOW WILL BE POSSIBLE THROUGH
DAYBREAK TUESDAY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

ACCUMULATING SNOW IS EXPECTED TO CONTINUE TUESDAY AND TUESDAY
NIGHT. THE HEAVIEST SNOW WILL FALL TUESDAY AFTERNOON AND EVENING.
STORM TOTAL ACCUMULATIONS OF 4 TO 8 INCHES WILL BE POSSIBLE. A
WINTER STORM WATCH IS IN EFFECT FOR TUESDAY AND TUESDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED  TONIGHT.

Nearby

Winter Storm Warnings in South Dakota, 2017Winter Storm Warnings in Iowa, 2017Winter Storm Warnings in Minnesota, 2017Every winter storm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.