Alert archive / South Dakota / Winter Storm Warnings in 2019

Winter Storm Warning 4, NWS Sioux Falls, SD

March 12, 201915 counties in South Dakota

NWS Sioux Falls, SD issued this winter storm warning at Mar 12, 2019, 3:21 PM CDT for 15 counties in South Dakota. It took effect at Mar 13, 2019, 7:00 AM CDT. It was in force for 26 hr. 3 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
Mar 12, 2019, 3:21 PM CDT (20:21 UTC)
In effect from
Mar 13, 2019, 7:00 AM CDT
Expired
Mar 14, 2019, 8:51 AM CDT
In force
26 hr
Issued by
NWS Sioux Falls, SD

Counties Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brule County, SD, Charles Mix County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Miner County, SD, Sanborn County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 118 km from the middle of the area, began a volume at 20:19 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
Mar 13, 9:00 AM CDTFREEZING RAIN 0.05White Lake, SDLIGHT COATING OF ICE ON ALL SURFACES.
Mar 14, 7:00 AM CDTSNOW 39 S Dallas, SD
Mar 14, 7:00 AM CDTSNOW 3.77 Ssw Chamberlain, SD

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, 8.4 hours before the alert went out and 140 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 2019-03-12Temperature 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 2019-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.193958Sfc1 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
798 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

646 
WWUS43 KFSD 122021
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
321 PM CDT Tue Mar 12 2019


SDZ038-052-057-130430-
/O.UPG.KFSD.WS.A.0006.190313T1200Z-190315T0000Z/
/O.NEW.KFSD.WS.W.0004.190313T1200Z-190315T0000Z/
Beadle-Jerauld-Brule-
321 PM CDT Tue Mar 12 2019

...WINTER STORM WARNING IN EFFECT FROM 7 AM WEDNESDAY TO 7 PM CDT
THURSDAY...

* WHAT...Freezing rain, mainly Wednesday morning, with ice
  accumulations of one tenth to three tenths of an inch expected.
  Snow late Wednesday night and Thursday, with total snow
  accumulations of 3 to 5 inches. Winds gusting as high as 50 
  mph late Wednesday night and Thursday.

* WHERE...Beadle, Jerauld and Brule Counties.

* WHEN...From 7 AM Wednesday to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Power outages and tree damage are likely 
  due to the ice. Travel could be nearly impossible. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ040-054-055-059>061-064-065-068-130430-
/O.EXB.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
Brookings-Miner-Lake-Davison-Hanson-McCook-Douglas-Hutchinson-
Bon Homme-
321 PM CDT Tue Mar 12 2019

...WINTER STORM WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY EVENING...

* WHAT...Brief mixed precipitation possible late Wednesday night,
  changing to snow by Thursday morning. Total snow accumulations 
  of up to two inches and ice accumulations of a light glaze 
  possible. Winds could gust as high as 55 mph on Thursday.

* WHERE...Portions of east central, south central and southeast 
  South Dakota.

* WHEN...From late Wednesday night through Thursday evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts. 

&&

$$

SDZ039-050-053-058-063-130430-
/O.EXT.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
Kingsbury-Gregory-Sanborn-Aurora-Charles Mix-
321 PM CDT Tue Mar 12 2019

...WINTER STORM WATCH NOW IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY EVENING...

* WHAT...Brief mixed precipitation possible late Wednesday
  evening, changing to snow by late Wednesday night into Thursday
  morning. Total snow accumulations of 2 to 4 inches and ice
  accumulations of a light glaze possible. Winds could gust as
  high as 50 mph on Thursday.

* WHERE...Sanborn, Gregory, Charles Mix, Aurora and Kingsbury 
  Counties.

* WHEN...From late Wednesday night through Thursday evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts. 

&&

$$
8 follow-up statements
105 
WWUS43 KFSD 130218
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
918 PM CDT Tue Mar 12 2019

SDZ050-063-131030-
/O.UPG.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
/O.EXA.KFSD.WS.W.0004.190313T1200Z-190315T0000Z/
Gregory-Charles Mix-
918 PM CDT Tue Mar 12 2019

...WINTER STORM WARNING IN EFFECT FROM 7 AM WEDNESDAY TO 7 PM CDT
THURSDAY...

* WHAT...Heavy mixed precipitation expected. Total snow 
  accumulations of 3 to 5 inches and ice accumulations of around 
  two tenths of an inch expected. Winds gusting as high as 55 
  mph.

* WHERE...Gregory and Charles Mix Counties.

* WHEN...From 7 AM Wednesday to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ038-052-057-131030-
/O.CON.KFSD.WS.W.0004.190313T1200Z-190315T0000Z/
Beadle-Jerauld-Brule-
918 PM CDT Tue Mar 12 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM WEDNESDAY TO
7 PM CDT THURSDAY...

* WHAT...Freezing rain, mainly Wednesday morning, with ice
  accumulations of one tenth to three tenths of an inch expected.
  Snow late Wednesday night and Thursday, with total snow 
  accumulations of 3 to 5 inches. Winds gusting as high as 50 mph 
  late Wednesday night and Thursday.

* WHERE...Beadle, Jerauld and Brule Counties.

* WHEN...From 7 AM Wednesday to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Power outages and tree damage are likely 
  due to the ice. Travel could be nearly impossible. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ053-058-064-131030-
/O.UPG.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
/O.NEW.KFSD.WW.Y.0021.190313T1200Z-190315T0000Z/
Sanborn-Aurora-Douglas-
918 PM CDT Tue Mar 12 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM WEDNESDAY TO 7 PM
CDT THURSDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations of
  1 to 3 inches and ice accumulations of up to two tenths of an 
  inch expected. Winds gusting as high as 55 mph.

* WHERE...Sanborn, Aurora and Douglas Counties.

* WHEN...From 7 AM Wednesday to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Expect slippery
roads and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ039-040-054-055-059>061-065-068-131030-
/O.CON.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
Kingsbury-Brookings-Miner-Lake-Davison-Hanson-McCook-Hutchinson-
Bon Homme-
918 PM CDT Tue Mar 12 2019

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY EVENING...

* WHAT...Mixed precipitation possible late Wednesday night,
  changing to snow Thursday morning. Total snow accumulations of 
  up to two inches and ice accumulations of a light glaze 
  possible. Winds could gust as high as 55 mph on Thursday.

* WHERE...Portions of east central, south central and southeast 
  South Dakota.

* WHEN...From late Wednesday night through Thursday evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

&&

$$
264 
WWUS43 KFSD 130852
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
352 AM CDT Wed Mar 13 2019

SDZ038-050-052-057-063-131700-
/O.CON.KFSD.WS.W.0004.190313T1200Z-190315T0000Z/
Beadle-Gregory-Jerauld-Brule-Charles Mix-
352 AM CDT Wed Mar 13 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 7 PM CDT THURSDAY...

* WHAT...Freezing rain, mainly Wednesday morning, with ice
  accumulations of one tenth to one quarter of an inch expected.
  Rain is expected much of the day, before snow develops late
  Wednesday night and Thursday, with total snow accumulations of 3
  to 5 inches. Winds gusting as high as 55 mph late Wednesday 
  night and Thursday.

* WHERE...Beadle, Jerauld and Brule Counties.

* WHEN...From 7 AM Wednesday to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Power outages and tree damage are likely 
  due to the ice. Travel could be nearly impossible. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ053-058-064-131700-
/O.EXT.KFSD.WW.Y.0021.190314T0300Z-190315T0000Z/
Sanborn-Aurora-Douglas-
352 AM CDT Wed Mar 13 2019

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING
TO 7 PM CDT THURSDAY...

* WHAT...Mixed precipitation expected. Rain for much of the day
  and evening, perhaps starting briefly as freezing rain. Brief
  freezing rain in transition to snow tonight. Total snow
  accumulations of 1 to 3 inches and ice accumulations of up to a
  tenth of an inch expected. Winds gusting as high as 55 mph.

* WHERE...Sanborn, Aurora and Douglas Counties.

* WHEN...From 10 PM this evening to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Expect slippery
roads and limited visibilities, and use caution while driving.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ039-040-054-055-059>061-065-068-131700-
/O.CON.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
Kingsbury-Brookings-Miner-Lake-Davison-Hanson-McCook-Hutchinson-
Bon Homme-
352 AM CDT Wed Mar 13 2019

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY EVENING...

* WHAT...Mixed precipitation possible late Wednesday night,
  changing to snow Thursday morning. Total snow accumulations up
  to two to four inches and ice accumulations of a light glaze 
  possible. Winds could gust as high as 55 mph on Thursday.

* WHERE...Portions of east central, south central and southeast 
  South Dakota.

* WHEN...From late Wednesday night through Thursday evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Areas of
  blowing snow could significantly reduce visibility. The
  hazardous conditions could impact the morning or evening
  commute. Gusty winds could bring down tree branches and cause
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

&&

$$
660 
WWUS43 KFSD 130952
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
452 AM CDT Wed Mar 13 2019

SDZ038-050-052-057-063-131800-
/O.CON.KFSD.WS.W.0004.190313T1200Z-190315T0000Z/
Beadle-Gregory-Jerauld-Brule-Charles Mix-
452 AM CDT Wed Mar 13 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT
THURSDAY...

* WHAT...Freezing rain, mainly Wednesday morning, with ice 
  accumulations of one tenth to one quarter of an inch expected. 
  Rain is expected much of the day, before snow develops late 
  Wednesday night and Thursday, with total snow accumulations of 
  3 to 5 inches. Winds gusting as high as 55 mph late Wednesday 
  night and Thursday.

* WHERE...Beadle, Jerauld and Brule Counties.

* WHEN...From 7 AM Wednesday to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Power outages and tree damage are likely 
  due to the ice. Travel could be nearly impossible. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ053-058-064-131800-
/O.CON.KFSD.WW.Y.0021.190314T0300Z-190315T0000Z/
Sanborn-Aurora-Douglas-
452 AM CDT Wed Mar 13 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 7 PM CDT THURSDAY...

* WHAT...Mixed precipitation expected. Rain for much of the day 
  and evening, perhaps starting briefly as freezing rain. Brief 
  freezing rain in transition to snow tonight. Total snow 
  accumulations of 1 to 3 inches and ice accumulations of up to 
  a tenth of an inch expected. Winds gusting as high as 55 mph.

* WHERE...Sanborn, Aurora and Douglas Counties.

* WHEN...From 10 PM this evening to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Expect slippery
roads and limited visibilities, and use caution while driving.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ001-012-MNZ071-072-080-089-097-098-NEZ013-SDZ056-062-066-067-
069>071-131800-
/O.EXB.KFSD.WS.A.0006.190314T1100Z-190315T0000Z/
Lyon IA-Sioux-Lincoln MN-Lyon MN-Murray-Nobles-Pipestone-Rock-
Dixon-Moody-Minnehaha-Turner-Lincoln SD-Yankton-Clay SD-Union-
452 AM CDT Wed Mar 13 2019

...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

* WHAT...Blizzard conditions possible. Total snow accumulations of
  up to one to three inches. Winds could gust as high as 55 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota.

* WHEN...From Thursday morning through Thursday evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Areas of
  blowing snow could significantly reduce visibility. The
  hazardous conditions could impact the morning or evening
  commute, but most impactful during the later morning and
  afternoon. Gusty winds could bring down tree branches and cause
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch for blizzard conditions means there is a
potential for falling and/or blowing snow with strong winds and
extremely poor visibilities. This can lead to whiteout conditions
and make travel very dangerous. 

&&

$$

SDZ039-040-054-055-059>061-065-068-131800-
/O.CON.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
Kingsbury-Brookings-Miner-Lake-Davison-Hanson-McCook-Hutchinson-
Bon Homme-
452 AM CDT Wed Mar 13 2019

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY EVENING...

* WHAT...Mixed precipitation possible late Wednesday night,
  changing to snow Thursday morning. Blizzard conditions possible. Total
  snow accumulations up to two to four inches and ice 
  accumulations of a light glaze possible. Winds could gust as 
  high as 55 mph on Thursday.

* WHERE...Portions of east central, south central and southeast 
  South Dakota.

* WHEN...From late Wednesday night through Thursday evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Areas 
  of blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches and cause 
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

&&

$$
614 
WWUS43 KFSD 131634
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
1134 AM CDT Wed Mar 13 2019


SDZ038-050-052-057-063-140045-
/O.CON.KFSD.WS.W.0004.000000T0000Z-190315T0000Z/
Beadle-Gregory-Jerauld-Brule-Charles Mix-
1134 AM CDT Wed Mar 13 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT
THURSDAY...

* WHAT...Localized freezing rain into early afternoon with ice 
  accumulations of one tenth to one quarter of an inch expected. 
  Rain is expected much of the day, before snow develops late 
  Wednesday night and Thursday, with total snow accumulations of 3
  to 5 inches. Winds gusting as high as 55 mph late Wednesday 
  night and Thursday.

* WHERE...Beadle, Jerauld and Brule Counties.

* WHEN...From 7 AM Wednesday to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Power outages and tree damage are likely 
  due to the ice. Travel could be nearly impossible. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ053-058-064-140045-
/O.CON.KFSD.WW.Y.0021.190314T0300Z-190315T0000Z/
Sanborn-Aurora-Douglas-
1134 AM CDT Wed Mar 13 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 7 PM CDT THURSDAY...

* WHAT...Mixed precipitation expected. Rain for much of the day 
  and evening, perhaps starting briefly as freezing rain. Brief 
  freezing rain in transition to snow tonight. Total snow 
  accumulations of 1 to 3 inches and ice accumulations of up to 
  a tenth of an inch expected. Winds gusting as high as 55 mph.

* WHERE...Sanborn, Aurora and Douglas Counties.

* WHEN...From 10 PM this evening to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Expect slippery
roads and limited visibilities, and use caution while driving.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ039-040-054-055-059>061-065-068-140045-
/O.CON.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
Kingsbury-Brookings-Miner-Lake-Davison-Hanson-McCook-Hutchinson-
Bon Homme-
1134 AM CDT Wed Mar 13 2019

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY EVENING...

* WHAT...Mixed precipitation possible late Wednesday night, 
  changing to snow Thursday morning. Blizzard conditions 
  possible. Total snow accumulations up to two to four inches 
  and ice accumulations of a light glaze possible. Winds could 
  gust as high as 55 mph on Thursday.

* WHERE...Portions of east central, south central and southeast 
  South Dakota.

* WHEN...From late Wednesday night through Thursday evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Areas 
  of blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches and cause 
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

&&

$$

IAZ001-012-MNZ071-072-080-089-097-098-NEZ013-SDZ056-062-066-067-
069>071-140045-
/O.CON.KFSD.WS.A.0006.190314T1100Z-190315T0000Z/
Lyon IA-Sioux-Lincoln MN-Lyon MN-Murray-Nobles-Pipestone-Rock-
Dixon-Moody-Minnehaha-Turner-Lincoln SD-Yankton-Clay SD-Union-
1134 AM CDT Wed Mar 13 2019

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY EVENING...

* WHAT...Blizzard conditions possible. Total snow accumulations 
  of up to one to three inches. Winds could gust as high as 55 
  mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota.

* WHEN...From Thursday morning through Thursday evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Areas 
  of blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute, but most impactful during the later morning and 
  afternoon. Gusty winds could bring down tree branches and 
  cause power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch for blizzard conditions means there is a
potential for falling and/or blowing snow with strong winds and
extremely poor visibilities. This can lead to whiteout conditions
and make travel very dangerous.

&&

$$
647 
WWUS43 KFSD 132103
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
403 PM CDT Wed Mar 13 2019


SDZ053-058-064-140515-
/O.UPG.KFSD.WW.Y.0021.190314T0300Z-190315T0000Z/
/O.EXB.KFSD.WS.W.0004.190314T0600Z-190315T0000Z/
Sanborn-Aurora-Douglas-
403 PM CDT Wed Mar 13 2019

...WINTER STORM WARNING IN EFFECT FROM 1 AM TO 7 PM CDT
THURSDAY...

* WHAT...Brief mixed precipitation will change to snow late
  tonight. Total snow accumulations of 2 to 3 inches. Winds 
  gusting as high as 55 mph.

* WHERE...Sanborn, Aurora and Douglas Counties.

* WHEN...From 1 AM to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe 
winter weather conditions will make travel very hazardous or 
impossible. If you must travel, keep an extra flashlight, food and
water in your vehicle in case of an emergency.


The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ059-140515-
/O.UPG.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
/O.EXB.KFSD.WS.W.0004.190314T0600Z-190315T0000Z/
Davison-
403 PM CDT Wed Mar 13 2019

...WINTER STORM WARNING IN EFFECT FROM 1 AM TO 7 PM CDT
THURSDAY...

* WHAT...Brief mixed precipitation will change to snow late
  tonight. Total snow accumulations of 2 to 3 inches. Winds 
  gusting as high as 55 mph.

* WHERE...Davison County.

* WHEN...From 1 AM to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe 
winter weather conditions will make travel very hazardous or 
impossible. If you must travel, keep an extra flashlight, food and
water in your vehicle in case of an emergency.


The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ069-140515-
/O.UPG.KFSD.WS.A.0006.190314T1100Z-190315T0000Z/
/O.EXB.KFSD.WS.W.0004.190314T1200Z-190315T0000Z/
Yankton-
403 PM CDT Wed Mar 13 2019

...WINTER STORM WARNING IN EFFECT FROM 7 AM TO 7 PM CDT
THURSDAY...

* WHAT...Rain changing to snow. Total snow accumulations of up to
  two inches expected. Winds gusting as high as 55 mph.

* WHERE...Yankton County.

* WHEN...From 7 AM to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe 
winter weather conditions will make travel very hazardous or 
impossible. If you must travel, keep an extra flashlight, food and
water in your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ039-054-060-065-068-140515-
/O.UPG.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
/O.EXB.KFSD.WS.W.0004.190314T1200Z-190315T0000Z/
Kingsbury-Miner-Hanson-Hutchinson-Bon Homme-
403 PM CDT Wed Mar 13 2019

...WINTER STORM WARNING IN EFFECT FROM 7 AM TO 7 PM CDT
THURSDAY...

* WHAT...Rain changing to snow. Total snow accumulations of up to
  two inches expected. Winds gusting as high as 55 mph.

* WHERE...Kingsbury, Miner, Hanson, Hutchinson and Bon Homme 
  Counties.

* WHEN...From 7 AM to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe 
winter weather conditions will make travel very hazardous or 
impossible. If you must travel, keep an extra flashlight, food and
water in your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ038-050-052-057-063-140515-
/O.CON.KFSD.WS.W.0004.000000T0000Z-190315T0000Z/
Beadle-Gregory-Jerauld-Brule-Charles Mix-
403 PM CDT Wed Mar 13 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT
THURSDAY...

* WHAT...Brief mixed precipitation will change to snow late
  tonight. Total snow accumulations of 2 to 3 inches. Winds
  gusting as high as 55 mph.

* WHERE...Charles Mix, Beadle, Brule, Jerauld and Gregory 
  Counties.

* WHEN...Until 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe 
winter weather conditions will make travel very hazardous or 
impossible. If you must travel, keep an extra flashlight, food and
water in your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ001-012-MNZ071-072-080-089-097-098-NEZ013-SDZ056-062-066-067-
070-071-140515-
/O.UPG.KFSD.WS.A.0006.190314T1100Z-190315T0000Z/
/O.NEW.KFSD.WW.Y.0022.190314T1500Z-190315T0000Z/
Lyon IA-Sioux-Lincoln MN-Lyon MN-Murray-Nobles-Pipestone-Rock-
Dixon-Moody-Minnehaha-Turner-Lincoln SD-Clay SD-Union-
403 PM CDT Wed Mar 13 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT
THURSDAY...

* WHAT...Brief mixed precipitation will change to snow on Thursday
  morning. Total snow accumulations of up to one inch. Winds 
  gusting as high as 55 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota.

* WHEN...From 10 AM to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain or blowing snow will cause travel difficulties. 
Expect slippery roads and limited visibilities, and use caution 
while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ040-055-061-140515-
/O.UPG.KFSD.WS.A.0006.190314T0600Z-190315T0000Z/
/O.NEW.KFSD.WW.Y.0022.190314T1500Z-190315T0000Z/
Brookings-Lake-McCook-
403 PM CDT Wed Mar 13 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT
THURSDAY...

* WHAT...Brief mixed precipitation will change to snow on Thursday
  morning. Total snow accumulations of 1 to 2 inches. Winds
  gusting as high as 55 mph.

* WHERE...Brookings, Lake and McCook Counties.

* WHEN...From 10 AM to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain or blowing snow will cause travel difficulties. 
Expect slippery roads and limited visibilities, and use caution 
while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
092 
WWUS43 KFSD 140237
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
937 PM CDT Wed Mar 13 2019

SDZ038-050-052-057-063-141045-
/O.CON.KFSD.WS.W.0004.000000T0000Z-190315T0000Z/
Beadle-Gregory-Jerauld-Brule-Charles Mix-
937 PM CDT Wed Mar 13 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT
THURSDAY...

* WHAT...Brief mixed precipitation will change to snow late
  tonight. Additional snow accumulations of 2 to 4 inches expected,
  with a glaze of ice possible. Winds gusting as high as 55 mph.

* WHERE...Charles Mix, Beadle, Brule, Jerauld and Gregory 
  Counties.

* WHEN...Until 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ053-058-059-064-141045-
/O.CON.KFSD.WS.W.0004.190314T0600Z-190315T0000Z/
Sanborn-Aurora-Davison-Douglas-
937 PM CDT Wed Mar 13 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 AM TO 7 PM CDT
THURSDAY...

* WHAT...Brief mixed precipitation will change to snow late
  tonight. Total snow accumulations of 1 to 3 inches expected, 
  with a glaze of ice possible. Winds gusting as high as 55 mph.

* WHERE...Douglas, Sanborn, Aurora and Davison Counties.

* WHEN...From 1 AM to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ039-054-060-065-068-069-141045-
/O.CON.KFSD.WS.W.0004.190314T1200Z-190315T0000Z/
Kingsbury-Miner-Hanson-Hutchinson-Bon Homme-Yankton-
937 PM CDT Wed Mar 13 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM TO 7 PM CDT
THURSDAY...

* WHAT...Rain changing to snow early Thursday, with mixed
  precipitation briefly possible during the transition. Total 
  snow accumulations of up to two inches expected, with a glaze of
  ice possible. Winds gusting as high as 55 mph.

* WHERE...Portions of east central and southeast South Dakota.

* WHEN...From 7 AM to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause extensive damage to trees 
  and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ001-012-MNZ071-072-080-089-097-098-NEZ013-SDZ040-055-056-061-
062-066-067-070-071-141045-
/O.CON.KFSD.WW.Y.0022.190314T1500Z-190315T0000Z/
Lyon IA-Sioux-Lincoln MN-Lyon MN-Murray-Nobles-Pipestone-Rock-
Dixon-Brookings-Lake-Moody-McCook-Minnehaha-Turner-Lincoln SD-
Clay SD-Union-
937 PM CDT Wed Mar 13 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM
CDT THURSDAY...

* WHAT...Rain changing to snow Thursday morning, with mixed
  precipitation briefly possible during the transition. Total snow
  accumulations of up to one inch expected, with a glaze of ice
  possible. Winds gusting as high as 55 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota.

* WHEN...From 10 AM to 7 PM CDT Thursday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the evening commute. 
  Strong winds could cause extensive damage to trees and power 
  lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Expect slippery
roads and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
126 
WWUS43 KFSD 140756
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
256 AM CDT Thu Mar 14 2019

SDZ038-050-052-057-063-141600-
/O.CON.KFSD.WS.W.0004.000000T0000Z-190315T0000Z/
Beadle-Gregory-Jerauld-Brule-Charles Mix-
256 AM CDT Thu Mar 14 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of 2 to 4 inches and ice accumulations of a light glaze. Winds 
  gusting as high as 60 mph.

* WHERE...Charles Mix, Beadle, Brule, Jerauld and Gregory 
  Counties.

* WHEN...Until 7 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.
  Widespread blowing snow could significantly reduce visibility,
  mainly while snow is falling. The hazardous conditions could 
  impact the morning or evening commute. Strong winds could cause 
  extensive damage to trees and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means severe winter weather conditions 
will make travel very hazardous or impossible. If you must travel,
keep an extra flashlight, food and water in your vehicle in case 
of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ053-058-059-064-141600-
/O.CON.KFSD.WS.W.0004.000000T0000Z-190315T0000Z/
Sanborn-Aurora-Davison-Douglas-
256 AM CDT Thu Mar 14 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Snow and blowing snow expected, with mixed precipitation
  possible early this morning. Total snow accumulations of 2 to 4
  inches and ice accumulations of a light glaze. Winds gusting as
  high as 60 mph.

* WHERE...Douglas, Sanborn, Aurora and Davison Counties.

* WHEN...Until 7 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.
  Widespread blowing snow could significantly reduce visibility,
  mainly while snow is falling. The hazardous conditions could 
  impact the morning or evening commute. Strong winds could cause 
  extensive damage to trees and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means severe winter weather conditions 
will make travel very hazardous or impossible. If you must travel,
keep an extra flashlight, food and water in your vehicle in case 
of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ039-054-060-065-068-069-141600-
/O.CON.KFSD.WS.W.0004.190314T1200Z-190315T0000Z/
Kingsbury-Miner-Hanson-Hutchinson-Bon Homme-Yankton-
256 AM CDT Thu Mar 14 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 7 PM CDT THIS EVENING...

* WHAT...Rain early this morning, then snow and blowing snow 
  expected. Total snow accumulations of 1 to 3 inches expected. 
  Winds gusting as high as 60 mph.

* WHERE...Portions of east central and southeast South Dakota.

* WHEN...From 7 AM this morning to 7 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.
  Widespread blowing snow could significantly reduce visibility,
  mainly while snow is falling. The hazardous conditions could 
  impact the morning or evening commute. Strong winds could cause 
  tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means severe winter weather conditions 
will make travel very hazardous or impossible. If you must travel,
keep an extra flashlight, food and water in your vehicle in case 
of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ001-012-MNZ071-072-080-089-097-098-NEZ013-SDZ040-055-056-061-
062-066-067-070-071-141600-
/O.CON.KFSD.WW.Y.0022.190314T1500Z-190315T0000Z/
Lyon IA-Sioux-Lincoln MN-Lyon MN-Murray-Nobles-Pipestone-Rock-
Dixon-Brookings-Lake-Moody-McCook-Minnehaha-Turner-Lincoln SD-
Clay SD-Union-
256 AM CDT Thu Mar 14 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 7 PM CDT THIS EVENING...

* WHAT...Rain changing to snow this morning. Mixed precipitation
  possible during the transition, especially in higher elevations
  of southwest Minnesota. Total snow accumulations of up to two
  inches expected, with highest amounts west of I-29. Ice
  accumulations of a light glaze possible. Winds gusting as high
  as 55 to 60 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota.

* WHEN...From 10 AM this morning to 7 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.
  Widespread blowing snow could significantly reduce visibility,
  mainly while snow is falling. The hazardous conditions could 
  impact the evening commute. Strong winds could cause extensive 
  damage to trees and power lines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Expect slippery
roads and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
439 
WWUS43 KFSD 141351
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
851 AM CDT Thu Mar 14 2019


SDZ038-039-050-052>054-057>060-063>065-068-069-150000-
/O.UPG.KFSD.WS.W.0004.000000T0000Z-190315T0000Z/
/O.NEW.KFSD.BZ.W.0004.190314T1351Z-190315T0000Z/
Beadle-Kingsbury-Gregory-Jerauld-Sanborn-Miner-Brule-Aurora-
Davison-Hanson-Charles Mix-Douglas-Hutchinson-Bon Homme-Yankton-
851 AM CDT Thu Mar 14 2019

...BLIZZARD WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of 2 
  to 4 inches. Winds gusting as high as 55 mph.

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota.

* WHEN...Until 7 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the evening commute. 
  Strong winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions, making travel extremely dangerous. Do not travel. If
you must travel, have a winter survival kit with you. If you get
stranded, stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

SDZ040-055-061-150000-
/O.UPG.KFSD.WW.Y.0022.190314T1500Z-190315T0000Z/
/O.NEW.KFSD.BZ.W.0004.190314T1351Z-190315T0000Z/
Brookings-Lake-McCook-
851 AM CDT Thu Mar 14 2019

...BLIZZARD WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of 2
  to 4 inches. Winds gusting as high as 55 mph.

* WHERE...Brookings, Lake and McCook Counties.

* WHEN...Until 7 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the evening commute. 
  Strong winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions, making travel extremely dangerous. Do not travel. If
you must travel, have a winter survival kit with you. If you get
stranded, stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ001-012-MNZ071-072-080-089-097-098-NEZ013-SDZ056-062-066-067-
070-071-150000-
/O.CON.KFSD.WW.Y.0022.190314T1500Z-190315T0000Z/
Lyon IA-Sioux-Lincoln MN-Lyon MN-Murray-Nobles-Pipestone-Rock-
Dixon-Moody-Minnehaha-Turner-Lincoln SD-Clay SD-Union-
851 AM CDT Thu Mar 14 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Snow and sleet expected. Total snow accumulations of up
  to 3 inches. Winds gusting as high as 55 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota.

* WHEN...Until 7 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the evening commute. 
  Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and sleet means periods of
snow and sleet will cause primarily travel difficulties. Expect
snow covered roads and limited visibilities, and use caution
while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

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 Mar 12, 12:33 PM CDT, 2 hours 48 minutes earlier.

Area forecast discussion, Mar 12, 12:33 PM CDT, 2 hours 48 minutes before
Area Forecast Discussion
National Weather Service Sioux Falls SD
1233 PM CDT Tue Mar 12 2019

.SHORT TERM...(Today and Tonight)
Issued at 314 AM CDT Tue Mar 12 2019

Forecast challenges continue with the developing major Spring
system. There has been a slight trend westward with the warmer air,
thus the threat for higher snow amounts is a bit west. However, even
a few inches of snow will cause major problems with wind gusts
around 60 mph and if there is more ice with this in central SD wind
would also be a huge problem. So will maintain the watch with
continued low confidence on placement of ice/snow. Farther east some
kind of winter headline will be very possible on Thursday where
there will likely be a 3-9 hour period of snow with very strong
winds. Unsure of amounts and placement for now so will keep focus
on flood watch and flooding concerns for Wednesday for now.

Still a couple of weak pieces of energy moving through the
increasing southwest flow aloft today. The first is a bit weaker and
the warm air advection in the low to mid levels is not real
impressive so not looking at a whole low of activity. The models
have also backed off on the weak instability aloft and with dry
conditions in the ice bearing layer rainfall chances are decreasing
for the morning, which is a good thing given the small potential for
light freezing rain. By afternoon the forcing and advection are a
little stronger and even some hints of weak instability so will
focus chances more into the afternoon and across northwest IA. The
focus may be around the 800 mb to 750 mb layer which is where the
lift might be able to tap into some weak instability. Nothing too
impressive before sunset but an increasing threat for rain.

Will back off a bit on fog development today as model soundings hint
more at a stratus concern. Do not doubt as the day wears on that fog
will develop, but it becomes more likely at night after melting has
occurred and the inversion begins to strengthen. Mild temperatures
again today but a lot less sun, highs upper 30s to lower 40s.

By tonight elevated instability in the 850-750 mb layer advects
northeast from Nebraska and will likely drive an area of
precipitation northward through the night. Evening chances will not
be real high, except near the Nebraska border, but overnight the
chances will spread north. Will continue to fight some dry air aloft
and a bit of a lack of instability so will lower chances north of
Interstate 90.

.LONG TERM...(Wednesday through Monday)
Issued at 314 AM CDT Tue Mar 12 2019

There is an increasing concern for freezing rain in central SD
late tonight but especially on Wednesday morning. This is captured
in the current watch and with the westward shift of the warm
layer aloft will not issue a warning at this time in case this
threat continues to shift west. Otherwise the remainder of the
area will see occasional moderate to possibly heavy rainfall
during the day Wednesday. Amounts will likely be a half an inch to
an inch and a half during this time. Coupled with melting snow
and a cold ground the flood watch looks really good as some flood
warnings appear likely.

Could be a brief lull in activity east of the James River from about
0z Thursday through 9z Thursday as the dry slot wraps northeast.
However, expect this to fill right back in as main vort lobe rotates
north and appears to have some instability to work with so expect a
band of moderate to possible heavy precipitation to fill in. This
precipitation shield should be east of the James Valley and looks
like it wants to focus near and just east of Interstate 29. For
winter weather this will likely be the most dangerous time for areas
east of the James River, roughly 12z Thursday through 21z Thursday
as this precipitation shield takes over as the one to the west
weakens. This occurs just as the cold air and very strong surface
winds start to crank, so somewhere from mid morning into early
afternoon rain should change to snow with wind gusts likely 50 to 60
mph. Will need to watch this area for potential winter weather
concerns Thursday as even 1 to 2 inches of snow with 50 to 60 mph
winds will cause problems.

Thursday night the winds will gradually diminish but some blowing
could still occur depending upon amounts. Dry weather is expected
Friday through Monday with temperatures just a bit below normal.
Highs likely 30s to some lower 40s with lows teens and 20s. Do not
doubt that there will be some river concerns during this time.

&&

.AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon)
Issued at 1216 PM CDT Tue Mar 12 2019

Conditions will become increasingly worse by evening as ceilings
and visibilities lower into the LIFR range as fog develops across
the area. Rain will develop later tonight and overspread the area
on Wednesday, becoming increasingly heavy. With winds increasing
aloft, low level wind shear will occur at KSUX later this evening
into Wednesday.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...Flood Watch from Wednesday morning through Thursday evening for
     SDZ062>071.

     Flood Watch from Wednesday morning through Thursday evening for
     SDZ040-054>056-059>061.

     Winter Storm Watch from Wednesday morning through Thursday
     evening for SDZ038-039-050-052-053-057-058-063.

MN...Flood Watch from Wednesday morning through Thursday evening for
     MNZ089-090-098.

     Flood Watch from Wednesday morning through Thursday evening for
     MNZ071-072-080-081-097.

IA...Flood Watch from Wednesday morning through Thursday evening for
     IAZ001>003-012>014-020>022-031-032.

NE...Flood Watch from Wednesday morning through Thursday evening for
     NEZ013-014.

&&

SHORT TERM...08
LONG TERM...08
AVIATION...JM
Hazardous weather outlook, Mar 12, 3:45 AM CDT, 11 hours 36 minutes before
Hazardous Weather Outlook
National Weather Service Sioux Falls SD
345 AM CDT Tue Mar 12 2019

SDZ038-050-052-053-057>059-063-064-130845-
Beadle-Gregory-Jerauld-Sanborn-Brule-Aurora-Davison-Charles Mix-
Douglas-
345 AM CDT Tue Mar 12 2019

This Hazardous Weather Outlook is for portions of central South
Dakota, east central South Dakota, south central South Dakota,
and southeast South Dakota.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A very strong storm system will work onto the Plains today and
slowly work northeast through Thursday. This will bring a threat
for freezing rain late tonight into Wednesday morning. The threat
for snow and additional freezing rain will continue into
Wednesday night as north winds increase, with gusts to 60 mph
possible. The combination of wind gusts around 60 mph and either
freezing rain or snow will be very impactful. Please continue to
monitor the forecast, especially if you have travel plans on
Wednesday or Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ039-040-054>056-060>062-065>071-130845-
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-
Miner-Lake-Moody-Hanson-McCook-Minnehaha-Hutchinson-Turner-
Lincoln SD-Bon Homme-Yankton-Clay SD-Union-
345 AM CDT Tue Mar 12 2019

This Hazardous Weather Outlook is for portions of northwest Iowa,
west central Iowa, southwest Minnesota, northeast Nebraska, east
central South Dakota, and southeast South Dakota.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Moderate to heavy rainfall will spread across the area on
Wednesday which could lead towards flooding of roads and rises in
local creeks, streams and rivers. Late Wednesday night into
Thursday morning very strong winds of 50 to 60 mph may also
combine with with rain and snow to create very hazardous
conditions. Confidence on the snow and wind Thursday is marginal
but if one to three inches of snow falls Thursday with wind gusts
around 60 mph highly dangerous conditions will be likely.

Now is a good time to prepare for the heavy rain by clearing
drains around homes and businesses as well as storm drains along
roads and highways. Please continue to monitor the forecast in
case the threat for wintry precipitation shifts east. Any travel
planned on Wednesday will be hampered by poor weather conditions,
especially in the afternoon and at night west of Interstate 29 and
Thursday could also prove to be a dangerous travel day.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 12, 3:26 PM CDTRiver Flood WatchFSDUnion23 days
Mar 12, 3:26 PM CDTRiver Flood WatchFSDUnion22 days
Mar 12, 3:26 PM CDTRiver Flood WatchFSDMinnehaha5 days
Mar 12, 3:26 PM CDTRiver Flood WatchFSDClay6 days
Mar 12, 3:26 PM CDTRiver Flood WatchFSDLincoln, Minnehaha3 days
Mar 12, 3:26 PM CDTRiver Flood WatchFSDMinnehaha, Moody4 days
Mar 12, 3:26 PM CDTRiver Flood WatchFSDMinnehaha5 days
Mar 12, 3:26 PM CDTRiver Flood WatchFSDLincoln, Minnehaha5 days
Mar 12, 5:41 PM CDTDense Fog AdvisoryFSDAurora, Beadle, Bon Homme, Brookings, Clay, Davison and 14 more19 hr

Nearby

Winter Storm Warnings in South Dakota, 2019Every winter storm warning in 2019

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.