Alert archive / South Dakota / Winter Storm Warnings in 2018

Winter Storm Warning 3, NWS Aberdeen, SD

February 18, 201811 counties in South Dakota

NWS Aberdeen, SD issued this winter storm warning at Feb 18, 2018, 11:15 AM CST for 11 counties in South Dakota. It took effect at Feb 18, 2018, 6:00 PM CST. It was in force for 36 hr. 8 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
Feb 18, 2018, 11:15 AM CST (17:15 UTC)
In effect from
Feb 18, 2018, 6:00 PM CST
Expired
Feb 20, 2018, 6:00 AM CST
In force
36 hr
Issued by
NWS Aberdeen, SD

Counties Buffalo County, SD, Dewey County, SD, Faulk County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jones County, SD, Lyman County, SD, Potter County, SD, Stanley County, SD, Sully County, SD

The radar

The Aberdeen radar (KABR), 157 km from the middle of the area, began a volume at 17:18 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
Feb 19, 6:20 AM CSTSNOW 2.4Pierre, SDCO-OP OBSERVER STATION PRSS2, PIERRE.
Feb 19, 7:00 AM CSTSNOW 2.3Pierre 1 S, SDCOCORAHS STATION SD-HG-10, PIERRE 1 S.
Feb 19, 7:54 AM CSTSNOW 3.56 E Hayes, SD
Feb 19, 8:57 AM CSTSNOW 34 Nw Onida, SD
Feb 19, 10:09 AM CSTSNOW 2Eagle Butte, SD
Feb 19, 4:15 PM CSTSNOW 5.51 Wsw Pierre, SDTOTAL SO FAR, STILL SNOWING. REPORTED VIA SOCIAL MEDIA.
Feb 19, 9:05 PM CSTSNOW 4Timber Lake, SD
Feb 20, 5:53 AM CSTSNOW 4.5Pierre Muni Ap, SDASOS STATION PIR, PIERRE MUNI AP.

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, 5.3 hours before the alert went out and 127 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 2018-02-18Temperature 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 2018-02-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 913 square meters per square second.1939587897117136Sfc1 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
708 m above ground
0-6 km bulk shear
84 kt
0-1 km storm-relative helicity
913 m²/s²
0-3 km storm-relative helicity
1080 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

267 
WWUS43 KABR 181715
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
1115 AM CST Sun Feb 18 2018

SDZ015-190115-
/O.UPG.KABR.WS.A.0003.180219T0000Z-180220T1200Z/
/O.NEW.KABR.WS.W.0003.180219T0000Z-180220T0600Z/
Dewey-
Including the city of Isabel
1015 AM MST Sun Feb 18 2018

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 PM MST MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8
  inches, with localized amounts up to 10 inches, are expected.

* WHERE...Dewey County.

* WHEN...From 5 PM this afternoon to 11 PM MST Monday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Timing
  wise, 4 to 7 inches of snow is expected tonight through Monday,
  with an additional 1 to 3 inches Monday evening. Winds gusting 
  as high as 30 mph will cause patchy blowing and drifting snow. 
  The cold wind chills as low as 20 below zero could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ033>035-045-048-190115-
/O.UPG.KABR.WS.A.0003.180219T0000Z-180220T1200Z/
/O.NEW.KABR.WS.W.0003.180219T0000Z-180220T1200Z/
Stanley-Sully-Hughes-Jones-Lyman-
Including the cities of Mission Ridge, Onida, Pierre, Murdo, 
and Kennebec
1115 AM CST Sun Feb 18 2018 /1015 AM MST Sun Feb 18 2018/

...WINTER STORM WARNING IN EFFECT FROM 6 PM CST /5 PM MST/ THIS
EVENING TO 6 AM CST /5 AM MST/ TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 7 to 
  10 inches, with localized amounts up to 13 inches, are 
  expected.

* WHERE...Stanley, Sully, Hughes, Jones and Lyman Counties.

* WHEN...From 6 PM CST /5 PM MST/ this evening to 6 AM CST /5 AM 
  MST/ Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Timing
  wise, around 5 to 8 inches of snow is expected tonight through 
  Monday, with an additional 3 to 5 inches of snow possible Monday
  night. Winds gusting as high as 30 mph will cause patchy 
  blowing and drifting snow. The cold wind chills as low as 25 
  below zero could cause frostbite on exposed skin in as little as
  30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ016-017-036-037-051-190115-
/O.NEW.KABR.WS.W.0003.180219T0000Z-180220T1200Z/
Potter-Faulk-Hyde-Hand-Buffalo-
Including the cities of Gettysburg, Faulkton, Highmore, Miller, 
and Fort Thompson
1115 AM CST Sun Feb 18 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 AM
CST TUESDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 6 to 9 inches are expected.

* WHERE...Potter, Faulk, Hyde, Hand and Buffalo Counties.

* WHEN...From 6 PM this evening to 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Timing
  wise, 3 to 6 inches of snow is expected tonight through Monday,
  with around an additional 3 to 5 inches possible Monday night. 
  Winds gusting as high as 30 mph will cause areas of blowing and 
  drifting snow. The cold wind chills as low as 25 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

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 can be obtained by calling 5 1 1.

&&

$$

KF
7 follow-up statements
678 
WWUS43 KABR 182041
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
241 PM CST Sun Feb 18 2018

SDZ015-190445-
/O.EXT.KABR.WS.W.0003.180219T0000Z-180220T1200Z/
Dewey-
Including the city of Isabel
141 PM MST Sun Feb 18 2018

...WINTER STORM WARNING NOW IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 AM MST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 
  inches, with localized amounts up to 10 inches, are expected.

* WHERE...Dewey County.

* WHEN...From 5 PM this afternoon to 5 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Timing
  wise, 3 to 6 inches of snow is expected tonight through Monday,
  with an additional 2 to 4 inches Monday evening. Winds gusting 
  as high as 30 mph will cause patchy blowing and drifting snow. 
  The cold wind chills as low as 20 below zero could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ033>035-045-048-190445-
/O.CON.KABR.WS.W.0003.180219T0000Z-180220T1200Z/
Stanley-Sully-Hughes-Jones-Lyman-
Including the cities of Mission Ridge, Onida, Pierre, Murdo, 
and Kennebec
241 PM CST Sun Feb 18 2018 /141 PM MST Sun Feb 18 2018/

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM CST /5 PM
MST/ THIS EVENING TO 6 AM CST /5 AM MST/ TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 7 to 
  10 inches, with localized amounts up to 13 inches, are 
  expected.

* WHERE...Stanley, Sully, Hughes, Jones and Lyman Counties.

* WHEN...From 6 PM CST /5 PM MST/ this evening to 6 AM CST /5 AM 
  MST/ Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Timing
  wise, 3 to 8 inches of snow is expected tonight through Monday,
  with an additional 3 to 5 inches of snow possible Monday night.
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ016-017-036-037-051-190445-
/O.CON.KABR.WS.W.0003.180219T0000Z-180220T1200Z/
Potter-Faulk-Hyde-Hand-Buffalo-
Including the cities of Gettysburg, Faulkton, Highmore, Miller, 
and Fort Thompson
241 PM CST Sun Feb 18 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 AM CST TUESDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 5 to 8 inches, with localized amounts up to 
  10 inches, are expected.

* WHERE...Potter, Faulk, Hyde, Hand and Buffalo Counties.

* WHEN...From 6 PM this evening to 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Timing
  wise, 2 to 5 inches of snow is expected tonight through Monday,
  with around an additional 3 to 5 inches possible Monday night. 
  Winds gusting as high as 30 mph will cause areas of blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

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 can be obtained by calling 5 1 1.

&&

$$

SDZ005-009-010-190445-
/O.NEW.KABR.WW.Y.0004.180219T2100Z-180220T1200Z/
McPherson-Walworth-Edmunds-
Including the cities of Eureka, Mobridge, and Ipswich
241 PM CST Sun Feb 18 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM MONDAY TO 6 AM CST
TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches are expected.

* WHERE...McPherson, Walworth and Edmunds Counties.

* WHEN...From 3 PM Monday to 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. In 
  addition, some reductions to visibility are likely. Winds 
  gusting as high as 30 mph will cause patchy blowing and drifting
  snow. The cold wind chills as low as 20 below zero could cause 
  frostbite on exposed skin in as little as 30 minutes. Timing
  wise, 1 to 3 inches of snow is expected tonight through Monday,
  with around an additional 3 to 5 inches possible Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

MNZ039-046-SDZ006>008-011-018>023-190445-
/O.NEW.KABR.WW.Y.0004.180220T0000Z-180220T1800Z/
Traverse-Big Stone-Brown-Marshall-Roberts-Day-Spink-Clark-
Codington-Grant-Hamlin-Deuel-
Including the cities of Wheaton, Ortonville, Aberdeen, Britton, 
Sisseton, Webster, Redfield, Clark, Watertown, Milbank, Hayti, 
and Clear Lake
241 PM CST Sun Feb 18 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM MONDAY TO NOON CST
TUESDAY...

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of 3 to 5 inches are expected.

* WHERE...Portions of northeast South Dakota and west central 
  Minnesota.

* WHEN...From 6 PM Monday to noon CST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the morning commute on Tuesday. In addition, 
  areas of poor visibility are likely. Winds gusting as high as 
  30 mph will cause areas of blowing and drifting snow. The cold 
  wind chills as low as 20 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes. Timing
  wise, 1 to 3 inches of snow is expected tonight through Monday,
  with around an additional 3 to 5 inches possible Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. In Minnesota, the
latest road conditions can be obtained at 511mn.org, or by
calling 5 1 1. In South Dakota, the latest road conditions can be
obtained by calling 5 1 1.

&&

$$

KF
589 
WWUS43 KABR 190251
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
851 PM CST Sun Feb 18 2018

SDZ015-191100-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Dewey-
Including the city of Isabel
751 PM MST Sun Feb 18 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
TUESDAY...

* WHAT...Moderate snow. Total snow accumulations of 5 to 8 inches
  are expected.

* WHERE...Dewey County.

* WHEN...Until 5 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. For
  timing, 3 to 6 inches of snow is expected tonight through 
  Monday, with an additional 2 inches possible Monday evening. 
  Winds gusting as high as 35 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ033>035-045-048-191100-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Stanley-Sully-Hughes-Jones-Lyman-
Including the cities of Mission Ridge, Onida, Pierre, Murdo, 
and Kennebec
851 PM CST Sun Feb 18 2018 /751 PM MST Sun Feb 18 2018/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST /5 AM
MST/ TUESDAY...

* WHAT...Moderate to heavy snow. Total snow accumulations of 6 to
  10 inches are expected.

* WHERE...Stanley, Sully, Hughes, Jones and Lyman Counties.

* WHEN...Until 6 AM CST /5 AM MST/ Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. For
  timing, 3 to 6 inches of snow is expected tonight through
  Monday, with an additional 3 to 4 inches of snow possible Monday
  night. Winds gusting as high as 35 mph will cause patchy 
  blowing and drifting snow. The cold wind chills as low as 20 
  below zero could cause frostbite on exposed skin in as little as
  30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ016-017-036-037-051-191100-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Potter-Faulk-Hyde-Hand-Buffalo-
Including the cities of Gettysburg, Faulkton, Highmore, Miller, 
and Fort Thompson
851 PM CST Sun Feb 18 2018

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

* WHAT...Moderate to heavy snow and blowing snow. Total snow 
  accumulations of 4 to 8 inches are expected.

* WHERE...Potter, Faulk, Hyde, Hand and Buffalo Counties.

* WHEN...Until 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. For
  timing, 2 to 4 inches of snow is expected tonight through
  Monday, with an additional 2 to 4 inches possible Monday night.
  Winds gusting as high as 30 mph will cause areas of blowing and
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

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 can be obtained by calling 5 1 1.

&&

$$

SDZ005-009-010-191100-
/O.CON.KABR.WW.Y.0004.180219T2100Z-180220T1200Z/
McPherson-Walworth-Edmunds-
Including the cities of Eureka, Mobridge, and Ipswich
851 PM CST Sun Feb 18 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM MONDAY TO
6 AM CST TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches are expected.

* WHERE...McPherson, Walworth and Edmunds Counties.

* WHEN...From 3 PM Monday to 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. In
  addition, some reductions to visibility are likely. Winds 
  gusting as high as 30 mph will cause patchy blowing and drifting
  snow. The cold wind chills as low as 20 below zero could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

MNZ039-046-SDZ006>008-011-018>023-191100-
/O.CON.KABR.WW.Y.0004.180220T0000Z-180220T1800Z/
Traverse-Big Stone-Brown-Marshall-Roberts-Day-Spink-Clark-
Codington-Grant-Hamlin-Deuel-
Including the cities of Wheaton, Ortonville, Aberdeen, Britton, 
Sisseton, Webster, Redfield, Clark, Watertown, Milbank, Hayti, 
and Clear Lake
851 PM CST Sun Feb 18 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM MONDAY TO
NOON CST TUESDAY...

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of 3 to 5 inches are expected.

* WHERE...Portions of northeast South Dakota and west central 
  Minnesota.

* WHEN...From 6 PM Monday to noon CST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the morning commute on Tuesday. In addition, 
  areas of poor visibility are likely. Winds gusting as high as 
  30 mph will cause areas of blowing and drifting snow. The cold 
  wind chills as low as 20 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. In Minnesota, the
latest road conditions can be obtained at 511mn.org, or by
calling 5 1 1. In South Dakota, the latest road conditions can be
obtained by calling 5 1 1.

&&

$$

Dorn
311 
WWUS43 KABR 190930
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
330 AM CST Mon Feb 19 2018

SDZ015-191730-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Dewey-
Including the city of Isabel
230 AM MST Mon Feb 19 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
TUESDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 7 
  inches are expected.

* WHERE...Dewey County.

* WHEN...Until 5 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ033>035-045-048-191730-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Stanley-Sully-Hughes-Jones-Lyman-
Including the cities of Mission Ridge, Onida, Pierre, Murdo, 
and Kennebec
330 AM CST Mon Feb 19 2018 /230 AM MST Mon Feb 19 2018/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST /5 AM
MST/ TUESDAY...

* WHAT...Heavy snow. Additional snow accumulations of 5 to 8 
  inches are expected.

* WHERE...Stanley, Sully, Hughes, Jones and Lyman Counties.

* WHEN...Until 6 AM CST /5 AM MST/ Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ016-017-036-037-051-191730-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Potter-Faulk-Hyde-Hand-Buffalo-
Including the cities of Gettysburg, Faulkton, Highmore, Miller, 
and Fort Thompson
330 AM CST Mon Feb 19 2018

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

* WHAT...Heavy snow and blowing snow. Additional snow
  accumulations of 3 to 5 inches are expected.

* WHERE...Potter, Faulk, Hyde, Hand and Buffalo Counties.

* WHEN...Until 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause areas of blowing 
  and drifting snow. The cold wind chills as low as 20 below 
  zero could cause frostbite on exposed skin in as little as 30 
  minutes.

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 can be obtained by calling 5 1 1.

&&

$$

SDZ003-004-191730-
/O.EXA.KABR.WW.Y.0004.180219T2100Z-180220T1200Z/
Corson-Campbell-
Including the cities of McIntosh and Herreid
330 AM CST Mon Feb 19 2018 /230 AM MST Mon Feb 19 2018/

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM CST /2 PM MST/
THIS AFTERNOON TO 6 AM CST /5 AM MST/ TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches are expected.

* WHERE...Corson and Campbell Counties.

* WHEN...From 3 PM CST /2 PM MST/ this afternoon to 6 AM CST /5 
  AM MST/ Tuesday.

* ADDITIONAL DETAILS...Light snow this morning will become heavier
  later this afternoon. Plan on slippery road conditions, 
  including during the evening commute. In addition, some 
  reductions to visibility are likely. Winds gusting as high as 25
  mph will cause patchy blowing and drifting snow. The cold wind 
  chills as low as 20 below zero could cause frostbite on exposed 
  skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ005-009-010-191730-
/O.CON.KABR.WW.Y.0004.180219T2100Z-180220T1200Z/
McPherson-Walworth-Edmunds-
Including the cities of Eureka, Mobridge, and Ipswich
330 AM CST Mon Feb 19 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 6 AM CST TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches are expected.

* WHERE...McPherson, Walworth and Edmunds Counties.

* WHEN...From 3 PM this afternoon to 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Light snow this morning will become heavier
  later this afternoon. Plan on slippery road conditions. In 
  addition, some reductions to visibility are likely. Winds 
  gusting as high as 30 mph will cause patchy blowing and drifting
  snow. The cold wind chills as low as 20 below zero could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

MNZ039-046-SDZ006>008-011-018>023-191730-
/O.CON.KABR.WW.Y.0004.180220T0000Z-180220T1800Z/
Traverse-Big Stone-Brown-Marshall-Roberts-Day-Spink-Clark-
Codington-Grant-Hamlin-Deuel-
Including the cities of Wheaton, Ortonville, Aberdeen, Britton, 
Sisseton, Webster, Redfield, Clark, Watertown, Milbank, Hayti, 
and Clear Lake
330 AM CST Mon Feb 19 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO NOON CST TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches are expected.

* WHERE...Portions of northeast South Dakota and west central 
  Minnesota.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Under an inch of snow is expected today.
  Snow will become heavier tonight. Plan on slippery road 
  conditions, including during the morning commute on Tuesday. In 
  addition, some reductions to visibility are likely. Winds 
  gusting as high as 30 mph will cause patchy blowing and drifting
  snow. The cold wind chills as low as 20 below zero could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving. In
Minnesota, the latest road conditions can be obtained at
511mn.org, or by calling 5 1 1. In South Dakota, the latest road
conditions can be obtained by calling 5 1 1.

&&

$$
SD
709 
WWUS43 KABR 191634
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
1034 AM CST Mon Feb 19 2018

SDZ015-200045-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Dewey-
Including the city of Isabel
934 AM MST Mon Feb 19 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
TUESDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 6 
  inches are expected.

* WHERE...Dewey County.

* WHEN...Until 5 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Winds gusting as high as 
  30 mph will cause patchy blowing and drifting snow. The cold 
  wind chills as low as 20 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ033>035-045-048-200045-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Stanley-Sully-Hughes-Jones-Lyman-
Including the cities of Mission Ridge, Onida, Pierre, Murdo, 
and Kennebec
1034 AM CST Mon Feb 19 2018 /934 AM MST Mon Feb 19 2018/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST /5 AM
MST/ TUESDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 7 
  inches are expected.

* WHERE...Stanley, Sully, Hughes, Jones and Lyman Counties.

* WHEN...Until 6 AM CST /5 AM MST/ Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ016-017-036-037-051-200045-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Potter-Faulk-Hyde-Hand-Buffalo-
Including the cities of Gettysburg, Faulkton, Highmore, Miller, 
and Fort Thompson
1034 AM CST Mon Feb 19 2018

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

* WHAT...Heavy snow. Additional snow accumulations of 4 to 6 
  inches are expected.

* WHERE...Potter, Faulk, Hyde, Hand and Buffalo Counties.

* WHEN...Until 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ003>005-009-010-200045-
/O.CON.KABR.WW.Y.0004.180219T2100Z-180220T1200Z/
Corson-Campbell-McPherson-Walworth-Edmunds-
Including the cities of McIntosh, Herreid, Eureka, Mobridge, 
and Ipswich
1034 AM CST Mon Feb 19 2018 /934 AM MST Mon Feb 19 2018/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM CST /2 PM
MST/ THIS AFTERNOON TO 6 AM CST /5 AM MST/ TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches are expected.

* WHERE...Corson, Campbell, McPherson, Walworth and Edmunds 
  Counties.

* WHEN...From 3 PM CST /2 PM MST/ this afternoon to 6 AM CST /5 
  AM MST/ Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. In 
  addition, some reductions to visibility are likely. Winds 
  gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

MNZ039-046-SDZ006>008-011-018>023-200045-
/O.CON.KABR.WW.Y.0004.180220T0000Z-180220T1800Z/
Traverse-Big Stone-Brown-Marshall-Roberts-Day-Spink-Clark-
Codington-Grant-Hamlin-Deuel-
Including the cities of Wheaton, Ortonville, Aberdeen, Britton, 
Sisseton, Webster, Redfield, Clark, Watertown, Milbank, Hayti, 
and Clear Lake
1034 AM CST Mon Feb 19 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO NOON CST TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches are expected.

* WHERE...Portions of northeast South Dakota and west central 
  Minnesota.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the morning commute on Tuesday. In addition, 
  some reductions to visibility are likely. Winds gusting as 
  high as 30 mph will cause patchy blowing and drifting snow. 
  The cold wind chills as low as 20 below zero could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving. In
Minnesota, the latest road conditions can be obtained at
511mn.org, or by calling 5 1 1. In South Dakota, the latest road
conditions can be obtained by calling 5 1 1.

&&

$$

Parkin
525 
WWUS43 KABR 200010 AAA
WSWABR

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service Aberdeen SD
610 PM CST Mon Feb 19 2018

SDZ015-201015-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Dewey-
Including the city of Isabel
510 PM MST Mon Feb 19 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
TUESDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 6 
  inches are expected.

* WHERE...Dewey County.

* WHEN...Until 5 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ033>035-045-048-201015-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Stanley-Sully-Hughes-Jones-Lyman-
Including the cities of Mission Ridge, Onida, Pierre, Murdo, 
and Kennebec
610 PM CST Mon Feb 19 2018 /510 PM MST Mon Feb 19 2018/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST /5 AM
MST/ TUESDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 7 
  inches are expected.

* WHERE...Stanley, Sully, Hughes, Jones and Lyman Counties.

* WHEN...Until 6 AM CST /5 AM MST/ Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ016-017-036-037-051-201015-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Potter-Faulk-Hyde-Hand-Buffalo-
Including the cities of Gettysburg, Faulkton, Highmore, Miller, 
and Fort Thompson
610 PM CST Mon Feb 19 2018

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

* WHAT...Heavy snow. Additional snow accumulations of 4 to 7 
  inches are expected.

* WHERE...Potter, Faulk, Hyde, Hand and Buffalo Counties.

* WHEN...Until 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ003>005-009-010-201015-
/O.CON.KABR.WW.Y.0004.000000T0000Z-180220T1200Z/
Corson-Campbell-McPherson-Walworth-Edmunds-
Including the cities of McIntosh, Herreid, Eureka, Mobridge, 
and Ipswich
610 PM CST Mon Feb 19 2018 /510 PM MST Mon Feb 19 2018/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST /5 AM
MST/ TUESDAY...

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches are
  expected.

* WHERE...Corson, Campbell, McPherson, Walworth and Edmunds 
  Counties.

* WHEN...Until 6 AM CST /5 AM MST/ Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Tuesday. Winds gusting 
  as high as 25 mph will cause patchy blowing and drifting snow. 
  The cold wind chills as low as 20 below zero could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

MNZ039-046-SDZ006>008-011-018>023-201015-
/O.CON.KABR.WW.Y.0004.000000T0000Z-180220T1800Z/
Traverse-Big Stone-Brown-Marshall-Roberts-Day-Spink-Clark-
Codington-Grant-Hamlin-Deuel-
Including the cities of Wheaton, Ortonville, Aberdeen, Britton, 
Sisseton, Webster, Redfield, Clark, Watertown, Milbank, Hayti, 
and Clear Lake
610 PM CST Mon Feb 19 2018

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

* WHAT...Snow. Additional snow accumulations of 3 to 6 inches are
  expected.

* WHERE...Portions of northeast South Dakota and west central 
  Minnesota.

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Tuesday. Winds gusting 
  as high as 30 mph will cause patchy blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. In Minnesota, the latest road conditions can be obtained
at 511mn.org, or by calling 5 1 1. In South Dakota, the latest
road conditions can be obtained by calling 5 1 1.

&&

$$

Mohr
742 
WWUS43 KABR 200931
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
331 AM CST Tue Feb 20 2018


SDZ015>017-033>036-045-201045-
/O.CAN.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Dewey-Potter-Faulk-Stanley-Sully-Hughes-Hyde-Jones-
Including the cities of Isabel, Gettysburg, Faulkton, 
Mission Ridge, Onida, Pierre, Highmore, and Murdo
331 AM CST Tue Feb 20 2018 /231 AM MST Tue Feb 20 2018/

...WINTER STORM WARNING IS CANCELLED...

Light snow will continue through the morning hours but with 
limited additional accumulation.

$$

SDZ003>005-009-010-201045-
/O.CAN.KABR.WW.Y.0004.000000T0000Z-180220T1200Z/
Corson-Campbell-McPherson-Walworth-Edmunds-
Including the cities of McIntosh, Herreid, Eureka, Mobridge, 
and Ipswich
331 AM CST Tue Feb 20 2018 /231 AM MST Tue Feb 20 2018/

...WINTER WEATHER ADVISORY IS CANCELLED...

Light snow will continue through the morning hours but with 
limited additional accumulation.

$$

SDZ006-018-201045-
/O.CAN.KABR.WW.Y.0004.000000T0000Z-180220T1800Z/
Brown-Spink-
Including the cities of Aberdeen and Redfield
331 AM CST Tue Feb 20 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Light snow will continue through the morning hours but with 
limited additional accumulation.

$$

SDZ048-201200-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Lyman-
Including the city of Kennebec
331 AM CST Tue Feb 20 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 2 
  inches are expected.

* WHERE...Lyman County.

* WHEN...Until 6 AM CST /5 AM MST/ Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

SDZ037-051-201200-
/O.CON.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Hand-Buffalo-
Including the cities of Miller and Fort Thompson
331 AM CST Tue Feb 20 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 2 
  inches are expected.

* WHERE...Hand and Buffalo Counties.

* WHEN...Until 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 30 mph will cause patchy blowing and 
  drifting snow. The cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for 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 can
be obtained by calling 5 1 1.

&&

$$

MNZ039-046-SDZ007-008-011-019>023-201745-
/O.CON.KABR.WW.Y.0004.000000T0000Z-180220T1800Z/
Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant-
Hamlin-Deuel-
Including the cities of Wheaton, Ortonville, Britton, Sisseton, 
Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake
331 AM CST Tue Feb 20 2018

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

* WHAT...Snow. Additional snow accumulations around an inch are 
  expected.

* WHERE...Portions of northeast South Dakota and west central 
  Minnesota.

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Tuesday. Winds gusting 
  as high as 30 mph will cause patchy blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving. In
Minnesota, the latest road conditions can be obtained at
511mn.org, or by calling 5 1 1. In South Dakota, the latest road
conditions can be obtained by calling 5 1 1.

&&

$$

Connelly
485 
WWUS43 KABR 201201
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
601 AM CST Tue Feb 20 2018

SDZ048-201315-
/O.EXP.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Lyman-
Including the city of Kennebec
601 AM CST Tue Feb 20 2018

...WINTER STORM WARNING WILL EXPIRE AT 6 AM CST EARLY THIS
MORNING...

Significant snowfall is beginning to end across the region, 
therefore the warning is being allowed to expire.

$$

SDZ037-051-201315-
/O.EXP.KABR.WS.W.0003.000000T0000Z-180220T1200Z/
Hand-Buffalo-
Including the cities of Miller and Fort Thompson
601 AM CST Tue Feb 20 2018

...WINTER STORM WARNING WILL EXPIRE AT 6 AM CST EARLY THIS
MORNING...

Significant snowfall is beginning to end across the region, 
therefore the warning is being allowed to expire.

$$

MNZ039-046-SDZ007-008-011-019>023-201800-
/O.CON.KABR.WW.Y.0004.000000T0000Z-180220T1800Z/
Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant-
Hamlin-Deuel-
Including the cities of Wheaton, Ortonville, Britton, Sisseton, 
Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake
601 AM CST Tue Feb 20 2018

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

* WHAT...Snow. Additional snow accumulations around an inch are 
  expected.

* WHERE...Portions of northeast South Dakota and west central 
  Minnesota.

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Tuesday. Winds gusting 
  as high as 30 mph will cause patchy blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving. In
Minnesota, the latest road conditions can be obtained at
511mn.org, or by calling 5 1 1. In South Dakota, the latest road
conditions 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 Aberdeen, SD wrote its last area forecast discussion before this winter storm warning went out at Feb 18, 5:31 AM CST, 5 hours 44 minutes earlier.

Area forecast discussion, Feb 18, 5:31 AM CST, 5 hours 44 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Aberdeen SD
531 AM CST Sun Feb 18 2018

.SHORT TERM...(Today through Monday Afternoon)
Issued at 332 AM CST Sun Feb 18 2018

Warm air advection is currently ongoing over this CWA ahead of an
area of low pressure over northeast Wyoming. With the WAA, light
snow has developed this morning, mainly for locations along the
ND/SD border. Snowfall amounts under a half inch is expected. The
surface low pressure should be located over this CWA during the mid
morning hours with warm temps in our east, while the our west will
see CAA developing. Models continue to suggest the pcpn associated
with this low pressure remaining over North Dakota with little
expected in this CWA. By 18Z, CAA will overtake the CWA with gusty
northerly winds expected.

As one surface low pressure departs the region today, another one
begin impacting western South Dakota late this afternoon. This
system, along with upper level jet support will spread accumulating
into central South Dakota, Pierre area, mainly after 0Z Monday. Snow
should gradually progress northeast through the night with most of
the CWA seeing at least some accumulating by 12Z Monday. The
location of the heaviest snowfall STILL remains unclear at this
time. Consensus suggests the heaviest snowfall of 2 to 4 inches
could occur from Pierre, to Redfield, to Ortonville MN. Additional
light snow will be possible on Monday, but overall amounts should be
low. Several CAMS are suggesting a break on Monday between this
storm system and the second one on Monday night. 24-hour storm total
snowfall yields 3 to 6 inches in central South Dakota, and 1 to 3
elsewhere in our CWA. With a low forecaster confidence in seeing
winter storm criteria snow, will maintain the current watch.

.LONG TERM...(Monday Evening through Saturday)
Issued at 332 AM CST Sun Feb 18 2018

During most of the long term, the models maintain a western conus
trof, with a predominate west to southwest flow across the forecast
area. The main activity during the period will be Monday night into
Tuesday. All models now show a deformation zone forming across the
CWA said time period. Of course individual snow bands are a bit
different among the models, with the GFS now holding onto pcpn the
longest on Tuesday, which is contrary to past runs. Given cold
airmass that will be in place, don't have much of an issue with
progged QPF amounts of up to a quarter inch. Snow ratios are pretty
high, pushing 20:1 or greater, so 3 to 5 inches of snow appears
appropriate Monday night and Tuesday before the accumulating snows
end. Isolated higher amounts are possible with any heavier bands
that may form.  Temperatures will start the period well below
normal, but then should trend toward normal by week's end.

&&

.AVIATION...(For the 12Z TAFS through 12Z Monday Morning)
Issued at 527 AM CST Sun Feb 18 2018

IFR/MVFR cigs will gradually spread southeast over the region
through the morning and afternoon hours. Snow will be on the
increase this evening and overnight from west to east across the
area.

&&

.ABR WATCHES/WARNINGS/ADVISORIES...
SD...Winter Storm Watch from this evening through late Monday night
     for SDZ015-033>035-045-048.

MN...None.
&&

SHORT TERM...SD
LONG TERM...TDK
AVIATION...TDK
Hazardous weather outlook, Feb 18, 4:32 AM CST, 6 hours 43 minutes before
Hazardous Weather Outlook
National Weather Service Aberdeen SD
432 AM CST Sun Feb 18 2018

SDZ015>017-033>037-045-048-051-191045-
Dewey-Potter-Faulk-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-
Buffalo-
432 AM CST Sun Feb 18 2018 /332 AM MST Sun Feb 18 2018/

This Hazardous Weather Outlook is for portions of central South
Dakota and north central South Dakota.

.DAY ONE...Today and Tonight

Accumulating snow will move into central South Dakota late this
afternoon through Monday morning. Snowfall amounts of 2 to 4
inches are possible by Monday morning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Snow will continue Monday morning with a brief break in
precipitation around midday. Total snowfall amounts of 3 to 6
inches will be possible tonight through Monday.

Accumulating snow can be expected Monday night through Tuesday
morning. Additional snowfall amounts of 3 to 5 inches are
possible.

.SPOTTER INFORMATION STATEMENT...

Any snow or icing amounts would be greatly appreciated late
tonight into Monday. Reports can be relayed through Facebook,
Twitter, or by calling the Aberdeen National Weather Service.

MNZ039-046-SDZ003>011-018>023-191045-
Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-
Roberts-Walworth-Edmunds-Day-Spink-Clark-Codington-Grant-Hamlin-
Deuel-
432 AM CST Sun Feb 18 2018 /332 AM MST Sun Feb 18 2018/

This Hazardous Weather Outlook is for portions of west central
Minnesota, north central South Dakota, and northeast South
Dakota.

.DAY ONE...Today and Tonight

Light, accumulating snow can be expected tonight into Monday
morning. One to two inches snow will be possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Snow will continue Monday morning with a brief break in
precipitation around midday. Total snowfall amounts of 1 to 3
inches will be possible tonight through Monday.

Accumulating snow can be expected Monday night through Tuesday
morning. Additional snowfall amounts of 3 to 5 inches are
possible.

.SPOTTER INFORMATION STATEMENT...

Any snow or icing amounts would be greatly appreciated late
tonight into Monday. Reports can be relayed through Facebook,
Twitter, or by calling the Aberdeen National Weather Service.

SD

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 18, 2:41 PM CSTWinter Weather AdvisoryABRBrown, Campbell, Clark, Codington, Corson, Day and 9 more43 hr

Nearby

Winter Storm Warnings in South Dakota, 2018Every winter storm warning in 2018

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.