Alert archive / South Dakota / Blizzard Warnings in 2018

Blizzard Warning 2, NWS Rapid City, SD

April 12, 201811 counties in South Dakota

NWS Rapid City, SD issued this blizzard warning at Apr 12, 2018, 3:16 AM MDT for 11 counties in South Dakota. It took effect at Apr 13, 2018, 6:00 AM MDT. It was in force for 30 hr. 60 reports came from inside the area while it was in force.

The area

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

The facts

Issued
Apr 12, 2018, 3:16 AM MDT (09:16 UTC)
In effect from
Apr 13, 2018, 6:00 AM MDT
Expired
Apr 14, 2018, 12:00 PM MDT
In force
30 hr
Issued by
NWS Rapid City, SD

Counties Bennett County, SD, Custer County, SD, Haakon County, SD, Jackson County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Todd County, SD, Tripp County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 92 km from the middle of the area, began a volume at 09:16 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
Apr 13, 6:00 AM MDTSNOW 3.51 E Downtown Rapid City, SD
Apr 13, 6:20 AM MDTHEAVY SNOW 64 Se Deerfield, SD
Apr 13, 6:28 AM MDTSNOW 25 Ese Elm Springs, SD
Apr 13, 6:31 AM MDTSNOW 3Hermosa, SD
Apr 13, 7:00 AM MDTHEAVY SNOW 8Red Owl, SD
Apr 13, 7:08 AM MDTSNOW 3Downtown Custer, SD
Apr 13, 7:12 AM MDTSNOW 24 Ssw Hill City, SD
Apr 13, 7:12 AM MDTSNOW 3.55 E Piedmont, SD
Apr 13, 7:17 AM MDTSNOW 3.43 N Downtown Rapid City, SD
Apr 13, 7:21 AM MDTSNOW 1.511 Nw Union Center, SD
Apr 13, 7:54 AM MDTSNOW 41 Ese Pactola Reservoir, SD
Apr 13, 8:00 AM MDTSNOW 2.52 W Opal, SD
Apr 13, 8:13 AM MDTSNOW 3.410 Wnw Downtown Rapid C, SD
Apr 13, 8:29 AM MDTSNOW 4.57 W Downtown Rapid City, SD
Apr 13, 8:40 AM MDTSNOW 5.52 Ne Box Elder, SD
Apr 13, 8:45 AM MDTSNOW 56 Nne Downtown Rapid Ci, SD
Apr 13, 8:58 AM MDTHEAVY SNOW 104 Wnw Rapid City Airpor, SD
Apr 13, 9:02 AM MDTSNOW 5.51 E Downtown Rapid City, SD
Apr 13, 9:03 AM MDTSNOW 3Wasta, SD
Apr 13, 9:51 AM MDTHEAVY SNOW 613 Sse Wall, SD
Apr 13, 12:18 PM MDTHEAVY SNOW 6.75 Sw Downtown Rapid Cit, SD
Apr 13, 12:20 PM MDTHEAVY SNOW 6.81 E Downtown Rapid City, SD
Apr 13, 12:35 PM MDTSNOW 49 Wsw Red Elm, SD1/4 MI VISIBILITY WITH 20-30 MPH WINDS
Apr 13, 12:35 PM MDTBLIZZARD9 Wsw Red Elm, SD1/4 MI VISIBILITY WITH 20-30 MPH WINDS
Apr 13, 12:49 PM MDTHEAVY SNOW 8Box Elder, SD
Apr 13, 12:54 PM MDTBLIZZARD3 E Philip, SD1/4 MI VISIBILITY FOR MORE THAN 3 HRS
Apr 13, 12:59 PM MDTBLIZZARD4 Sse Witten, SDMEASURED 57MPH WIND GUST WITH HEAVY SNOW
Apr 13, 1:02 PM MDTHEAVY SNOW 6.53 Ene Kyle, SD
Apr 13, 1:02 PM MDTBLIZZARD3 Ene Kyle, SD
Apr 13, 1:03 PM MDTSNOW 5Kadoka, SD
Apr 13, 1:03 PM MDTBLIZZARDKadoka, SD
Apr 13, 1:05 PM MDTHEAVY SNOW 8Philip, SD
Apr 13, 1:05 PM MDTBLIZZARDPhilip, SD
Apr 13, 1:09 PM MDTHEAVY SNOW 7Wall, SD
Apr 13, 1:15 PM MDTHEAVY SNOW 125 Ese Elm Springs, SD
Apr 13, 1:15 PM MDTBLIZZARD5 Ese Elm Springs, SD
Apr 13, 1:37 PM MDTHEAVY SNOW 6Martin, SD
Apr 13, 1:37 PM MDTBLIZZARDMartin, SD
Apr 13, 1:43 PM MDTSNOW 53 W White River, SD
Apr 13, 1:43 PM MDTBLIZZARD3 W White River, SD
Apr 13, 1:51 PM MDTHEAVY SNOW 6Rosebud, SD
Apr 13, 1:51 PM MDTBLIZZARDRosebud, SD
Apr 13, 1:52 PM MDTSNOW 4Mission, SD
Apr 13, 1:52 PM MDTBLIZZARDMission, SD
Apr 13, 1:58 PM MDTSNOW 36 Nw Clearfield, SD
Apr 13, 1:58 PM MDTBLIZZARD6 Nw Clearfield, SD
Apr 13, 2:00 PM MDTBLIZZARD16 Nw Philip, SD
Apr 13, 2:22 PM MDTBLIZZARD1 Ne Winner, SD
Apr 13, 2:32 PM MDTHEAVY SNOW 13.5New Underwood, SD
Apr 13, 2:42 PM MDTHEAVY SNOW 812 S Faith, SD
Apr 13, 2:42 PM MDTBLIZZARD12 S Faith, SD
Apr 13, 3:10 PM MDTSNOW 3.32 Ssw Downtown Custer, SD
Apr 13, 3:15 PM MDTSNOW 5Hermosa, SD
Apr 13, 3:15 PM MDTBLIZZARDHermosa, SD
Apr 13, 3:26 PM MDTSNOW 5Tilford, SD
Apr 13, 3:29 PM MDTHEAVY SNOW 7.53 Ssw Downtown Rapid Ci, SD
Apr 13, 3:48 PM MDTHEAVY SNOW 7Black Hawk, SD
Apr 13, 3:54 PM MDTHEAVY SNOW 105 Ese Downtown Rapid Ci, SD
Apr 13, 4:00 PM MDTBLIZZARD2 Ese Winner, SDWHITE OUT CONDITIONS THROUGH THE EVENING; VISIBILITY OFTEN LESS THAN 100 FEET
Apr 13, 4:15 PM MDTSNOW 52 Ese Winner, SD

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

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 9.3 hours before the alert went out and 94 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, Rapid City, SD at 00:00Z on 2018-04-12Temperature 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, Rapid City, SD at 00:00Z on 2018-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.1939587897117Sfc1 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
1268 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
265 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

946 
WWUS43 KUNR 120916
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
316 AM MDT Thu Apr 12 2018

...STRONG SPRING SNOW STORM TO AFFECT THE REGION...

.A strong storm system will affect the region from late tonight 
through Friday night. Rain will change to snow from north to south
overnight tonight and early Friday over northeast Wyoming and 
much of western South Dakota, and by midday Friday over south 
central South Dakota. The snow will be heavy at times Friday into
Friday evening across much of western and South central South 
Dakota. Winds of 20 to 35 mph with gusts to around 50 mph can be 
expected across much of the west central South Dakota plains to 
parts of south central South Dakota, producing blizzard conditions
at times. This includes the Interstate 90 corridor east of Rapid 
City. The heaviest amounts of snow are expected to be south and 
east of the Black Hills, where a foot or more of snowfall is 
likely in many areas. Listen to NOAA Weather Radio or your local 
media for the latest updates on this storm.

SDZ013-014-030>032-042-043-073-130030-
/O.UPG.KUNR.WS.A.0009.180413T0600Z-180414T0600Z/
/O.NEW.KUNR.BZ.W.0002.180413T1200Z-180414T1200Z/
Northern Meade Co Plains-Ziebach-Custer Co Plains-
Pennington Co Plains-Haakon-Oglala Lakota-Jackson-
Southern Meade Co Plains-
Including the cities of Faith, Dupree, Folsom, Wall, Philip, 
Pine Ridge, Oglala, Kyle, Kadoka, and Union Center
316 AM MDT Thu Apr 12 2018

...BLIZZARD WARNING IN EFFECT FROM 6 AM FRIDAY TO 6 AM MDT
SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 50
  mph will cause whiteout conditions in blowing snow. Significant
  drifting of the snow is likely. Total snow accumulations of 8 to
  12 inches, with localized amounts up to 18 inches, are 
  expected.

* WHERE...Portions of west central and southwestern South Dakota.

* WHEN...From 6 AM Friday to 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to
  impossible, including during the evening commute on Friday. Tree
  branches could fall. Some power outages are likely. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ001-002-012-130030-
/O.UPG.KUNR.WS.A.0009.180413T0600Z-180414T0600Z/
/O.NEW.KUNR.WS.W.0009.180413T0600Z-180414T0000Z/
Harding-Perkins-Butte-
Including the cities of Buffalo, Lemmon, Bison, and Belle Fourche
316 AM MDT Thu Apr 12 2018

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
MDT FRIDAY...

* 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...Harding, Perkins and Butte counties.

* WHEN...From midnight tonight to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the morning commute on Friday. Winds gusting as
  high as 35 mph will cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ024-028-029-WYZ056-057-071-130030-
/O.UPG.KUNR.WS.A.0009.180413T0600Z-180414T0600Z/
/O.NEW.KUNR.WS.W.0009.180413T0600Z-180414T0000Z/
Northern Black Hills-Central Black Hills-Southern Black Hills-
Western Crook-Wyoming Black Hills-Northeastern Crook-
Including the cities of Lead, Deadwood, Hill City, Mt Rushmore, 
Custer, Moorcroft, Hulett, Four Corners, Sundance, and Colony
316 AM MDT Thu Apr 12 2018

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
MDT FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 4 to 8 inches. Localized amounts up to 12
  inches are expected across the northern Black Hills.

* WHERE...In Wyoming, Western Crook County, the Wyoming Black 
  Hills and Northeastern Crook County. In South Dakota, the 
  Northern Black Hills, the Central Black Hills and the Southern 
  Black Hills.

* WHEN...From midnight tonight to 6 PM MDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ025>027-041-072-074-130030-
/O.UPG.KUNR.WS.A.0009.180413T0600Z-180414T0600Z/
/O.NEW.KUNR.WS.W.0009.180413T0900Z-180414T0300Z/
Northern Foot Hills-Rapid City-Southern Foot Hills-Fall River-
Sturgis/Piedmont Foot Hills-Hermosa Foot Hills-
Including the cities of Spearfish, Rapid City, Edgemont, 
Hot Springs, Ardmore, Oelrichs, Sturgis, and Hermosa
316 AM MDT Thu Apr 12 2018

...WINTER STORM WARNING IN EFFECT FROM 3 AM TO 9 PM MDT FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 5 to 8 inches. Localized amounts up to 12 
  inches are expected across the foothills from Spearfish to 
  Piedmont.

* WHERE...The Northern Foot Hills, the Rapid City area, the 
  Southern Foot Hills, the Fall River County Plains, the 
  Sturgis/Piedmont Foot Hills and the Hermosa Foot Hills.

* WHEN...From 3 AM to 9 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the morning commute on Friday. Winds gusting as
  high as 40 mph will cause blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

WYZ054-055-058-130030-
/O.UPG.KUNR.WS.A.0009.180413T0600Z-180414T0600Z/
/O.NEW.KUNR.WW.Y.0018.180413T0600Z-180414T0000Z/
Northern Campbell-Southern Campbell-Weston-
Including the cities of Gillette, Wright, Newcastle, and Upton
316 AM MDT Thu Apr 12 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM MDT FRIDAY...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of 2 to 5 inches are expected, highest amounts generally across
  northern Campbell County.

* WHERE...Northern Campbell County, Southern Campbell County and 
  the Weston County Plains.

* WHEN...From midnight tonight to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the morning commute on Friday. In addition, 
  areas of poor visibility are likely. Winds gusting as high as 
  40 mph will cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ044-046-047-049-130030-
/O.EXT.KUNR.WS.A.0009.180413T1500Z-180414T1200Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
316 AM MDT Thu Apr 12 2018 /416 AM CDT Thu Apr 12 2018/

...WINTER STORM WATCH NOW IN EFFECT FROM FRIDAY MORNING THROUGH
LATE FRIDAY NIGHT...

* WHAT...Blizzard conditions possible. Winds gusting as high as 50
  mph could cause whiteout conditions in blowing snow. Significant
  drifting of the snow is also possible. Total snow accumulations
  of 10 to 18 inches are possible.

* WHERE...Bennett, Mellette, Todd and Tripp counties.

* WHEN...From Friday morning through late Friday night.

* ADDITIONAL DETAILS...Travel could be very difficult to 
  impossible, including during the evening commute on Friday. 
  Damage to trees and power lines is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch for blizzard conditions means falling and
blowing snow with strong winds may produce dangerous whiteout
conditions. Monitor NOAA weather radio, local radio or
television, or the Internet for updates on this potentially
dangerous storm. Take time to prepare for severe winter
conditions before the storm develops.

&&

$$
12 follow-up statements
819 
WWUS43 KUNR 121645
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
1045 AM MDT Thu Apr 12 2018

...STRONG SPRING SNOW STORM TO AFFECT THE REGION...

.A strong storm system will affect the region from late tonight
through Friday night. Rain will change to snow from north to
south overnight tonight and early Friday over northeast Wyoming
and much of western South Dakota, and by midday Friday over south
central South Dakota. The snow will be heavy at times Friday into
Friday evening across much of western and south central South 
Dakota. Winds of 20 to 35 mph with gusts up to 60 mph can be 
expected across much of the west central South Dakota plains to 
parts of south central South Dakota, producing blizzard conditions.
This includes the Interstate 90 corridor east of Rapid City. The 
heaviest amounts of snow are expected to be south and east of the 
Black Hills, where a foot or more of snowfall is likely in many 
areas. Listen to NOAA Weather Radio or your local media for the 
latest updates on this storm.

SDZ044-046-047-049-130745-
/O.UPG.KUNR.WS.A.0009.180413T1500Z-180414T1200Z/
/O.EXB.KUNR.BZ.W.0002.180413T1500Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
1045 AM MDT Thu Apr 12 2018 /1145 AM CDT Thu Apr 12 2018/

...BLIZZARD WARNING IN EFFECT FROM 9 AM MDT /10 AM CDT/ FRIDAY TO
NOON MDT /1 PM CDT/ SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 60
  mph will cause whiteout conditions in blowing snow. Significant
  drifting of the snow is likely. Total snow accumulations of 15
  to 20 inches are expected.

* WHERE...Bennett, Mellette, Todd and Tripp.

* WHEN...From 9 AM MDT /10 AM CDT/ Friday to noon MDT /1 PM CDT/ 
  Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible, including during the evening commute on Friday. 
  Damage to trees and power lines is likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ013-014-030>032-042-043-073-130745-
/O.CON.KUNR.BZ.W.0002.180413T1200Z-180414T1200Z/
Northern Meade Co Plains-Ziebach-Custer Co Plains-
Pennington Co Plains-Haakon-Oglala Lakota-Jackson-
Southern Meade Co Plains-
Including the cities of Faith, Dupree, Folsom, Wall, Philip, 
Pine Ridge, Oglala, Kyle, Kadoka, and Union Center
1045 AM MDT Thu Apr 12 2018

...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 AM FRIDAY TO 6 AM
MDT SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 
  55 mph will cause whiteout conditions in blowing snow. 
  Significant drifting of the snow is likely. Total snow 
  accumulations of 10 to 15 inches, with localized amounts up to 
  18 inches, are expected.

* WHERE...Portions of northwestern and southwestern South Dakota.

* WHEN...From 6 AM Friday to 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible, including during the evening commute on Friday. 
  Tree branches could fall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ001-002-012-130745-
/O.CON.KUNR.WS.W.0009.180413T0600Z-180414T0000Z/
Harding-Perkins-Butte-
Including the cities of Buffalo, Lemmon, Bison, and Belle Fourche
1045 AM MDT Thu Apr 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM MDT FRIDAY...

* 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...Harding, Perkins and Butte.

* WHEN...From midnight tonight to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Winds gusting 
  as high as 40 mph will cause areas of blowing and drifting 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ024-028-WYZ056-057-071-130745-
/O.CON.KUNR.WS.W.0009.180413T0600Z-180414T0000Z/
Northern Black Hills-Central Black Hills-Western Crook-
Wyoming Black Hills-Northeastern Crook-
Including the cities of Lead, Deadwood, Hill City, Mt Rushmore, 
Moorcroft, Hulett, Four Corners, Sundance, and Colony
1045 AM MDT Thu Apr 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM MDT FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 5 to 10 inches. Localized amounts up to 13
  inches are expected across the northern Black Hills.

* WHERE...In Wyoming, Western Crook County, the Wyoming Black 
  Hills and Northeastern Crook County. In South Dakota, the 
  Northern Black Hills and the Central Black Hills.

* WHEN...From midnight tonight to 6 PM MDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ025-026-072-130745-
/O.CON.KUNR.WS.W.0009.180413T0900Z-180414T0300Z/
Northern Foot Hills-Rapid City-Sturgis/Piedmont Foot Hills-
Including the cities of Spearfish, Rapid City, and Sturgis
1045 AM MDT Thu Apr 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM MDT
FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 6 to 12 inches are expected.

* WHERE...The Northern Foot Hills, the Rapid City area and the 
  Sturgis/Piedmont Foot Hills.

* WHEN...From 3 AM to 9 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the morning commute on Friday. Tree branches
  could fall. Winds gusting as high as 55 mph will cause 
  widespread blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ029-130745-
/O.CON.KUNR.WS.W.0009.180413T0600Z-180414T0000Z/
Southern Black Hills-
Including the city of Custer
1045 AM MDT Thu Apr 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM MDT FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 3 to 6 inches are expected.

* WHERE...The Southern Black Hills.

* WHEN...From midnight tonight to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Winds gusting 
  as high as 35 mph will cause areas of blowing and drifting 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ027-041-074-130745-
/O.CON.KUNR.WS.W.0009.180413T0900Z-180414T0300Z/
Southern Foot Hills-Fall River-Hermosa Foot Hills-
Including the cities of Edgemont, Hot Springs, Ardmore, Oelrichs,
and Hermosa
1045 AM MDT Thu Apr 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM MDT
FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 3 to 6 inches, with localized amounts up to 9 
  inches, are expected.

* WHERE...The Southern Foot Hills, the Fall River County Plains 
  and the Hermosa Foot Hills.

* WHEN...From 3 AM to 9 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Winds gusting 
  as high as 40 mph will cause areas of blowing and drifting 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

WYZ054-055-058-130745-
/O.CON.KUNR.WW.Y.0018.180413T0600Z-180414T0000Z/
Northern Campbell-Southern Campbell-Weston-
Including the cities of Gillette, Wright, Newcastle, and Upton
1045 AM MDT Thu Apr 12 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM MDT FRIDAY...

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of 2 to 4 inches are expected.

* WHERE...Northern Campbell County, Southern Campbell County and 
  the Weston County Plains.

* WHEN...From midnight tonight to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the morning commute on Friday. In addition, 
  areas of poor visibility are likely. Winds gusting as high as 
  40 mph will cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
329 
WWUS43 KUNR 122005
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
205 PM MDT Thu Apr 12 2018

...STRONG SPRING SNOW STORM TO AFFECT THE REGION...

.A strong storm system will affect the region from late tonight
through Friday night. Rain will change to snow from north to
south overnight tonight and early Friday over northeast Wyoming
and much of western South Dakota, and by midday Friday over south
central South Dakota. The snow will be heavy at times Friday into
Friday evening across much of western and south central South
Dakota. Winds of 20 to 35 mph with gusts up to 60 mph can be
expected across much of the west central South Dakota plains to 
south central South Dakota, producing blizzard conditions. This 
includes the Interstate 90 corridor east of Rapid City. The 
heaviest amounts of snow are expected to be south and east of the 
Black Hills, where one to two feet of snowfall is likely in many 
areas. Listen to NOAA Weather Radio or your local media for the 
latest updates on this storm.

SDZ026-074-131115-
/O.UPG.KUNR.WS.W.0009.180413T0900Z-180414T0300Z/
/O.EXA.KUNR.BZ.W.0002.180413T1200Z-180414T1200Z/
Rapid City-Hermosa Foot Hills-
Including the cities of Rapid City and Hermosa
205 PM MDT Thu Apr 12 2018

...BLIZZARD WARNING IN EFFECT FROM 6 AM FRIDAY TO 6 AM MDT
SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 
  60 mph will cause whiteout conditions in blowing snow. 
  Significant drifting of the snow is likely. Total snow 
  accumulations of 5 to 10 inches, with localized amounts up to 
  12 inches, are expected.

* WHERE...The Rapid City area and the Hermosa Foot Hills.

* WHEN...From 6 AM Friday to 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible, including during the morning commute on Friday. 
  Tree branches could fall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ025-072-131115-
/O.EXT.KUNR.WS.W.0009.180413T0900Z-180414T0000Z/
Northern Foot Hills-Sturgis/Piedmont Foot Hills-
Including the cities of Spearfish and Sturgis
205 PM MDT Thu Apr 12 2018

...WINTER STORM WARNING NOW IN EFFECT FROM 3 AM TO 6 PM MDT
FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 8 to 12 inches are expected.

* WHERE...The Northern Foot Hills and the Sturgis/Piedmont Foot 
  Hills.

* WHEN...From 3 AM to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Winds gusting 
  as high as 40 mph will cause areas of blowing and drifting 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ013-014-030>032-042-043-073-131115-
/O.CON.KUNR.BZ.W.0002.180413T1200Z-180414T1200Z/
Northern Meade Co Plains-Ziebach-Custer Co Plains-
Pennington Co Plains-Haakon-Oglala Lakota-Jackson-
Southern Meade Co Plains-
Including the cities of Faith, Dupree, Folsom, Wall, Philip, 
Pine Ridge, Oglala, Kyle, Kadoka, and Union Center
205 PM MDT Thu Apr 12 2018

...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 AM FRIDAY TO 6 AM
MDT SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 60
  mph will cause whiteout conditions in blowing snow. Significant
  drifting of the snow is likely. Total snow accumulations of 10
  to 15 inches, with localized amounts up to 20 inches, are 
  expected.

* WHERE...Portions of northwestern and southwestern South Dakota.

* WHEN...From 6 AM Friday to 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible, including during the evening commute on Friday. 
  Tree branches could fall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ044-046-047-049-131115-
/O.CON.KUNR.BZ.W.0002.180413T1500Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
205 PM MDT Thu Apr 12 2018 /305 PM CDT Thu Apr 12 2018/

...BLIZZARD WARNING REMAINS IN EFFECT FROM 9 AM MDT /10 AM CDT/
FRIDAY TO NOON MDT /1 PM CDT/ SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 60 
  mph will cause whiteout conditions in blowing snow. Significant 
  drifting of the snow is likely. Total snow accumulations of 18 
  to 22 inches, with localized amounts up to 24 inches, are 
  expected.

* WHERE...Bennett, Mellette, Todd and Tripp.

* WHEN...From 9 AM MDT /10 AM CDT/ Friday to noon MDT /1 PM CDT/ 
  Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible, including during the evening commute on Friday. 
  Damage to trees and power lines is likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ001-002-012-131115-
/O.CON.KUNR.WS.W.0009.180413T0600Z-180414T0000Z/
Harding-Perkins-Butte-
Including the cities of Buffalo, Lemmon, Bison, and Belle Fourche
205 PM MDT Thu Apr 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM MDT FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 5 to 10 inches are expected.

* WHERE...Harding, Perkins and Butte.

* WHEN...From midnight tonight to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Winds gusting 
  as high as 40 mph will cause areas of blowing and drifting 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ024-028-WYZ056-057-071-131115-
/O.CON.KUNR.WS.W.0009.180413T0600Z-180414T0000Z/
Northern Black Hills-Central Black Hills-Western Crook-
Wyoming Black Hills-Northeastern Crook-
Including the cities of Lead, Deadwood, Hill City, Mt Rushmore, 
Moorcroft, Hulett, Four Corners, Sundance, and Colony
205 PM MDT Thu Apr 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM MDT FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 10
  inches. Localized amounts up to 13 inches are expected across 
  the northern Black Hills.

* WHERE...In Wyoming, Western Crook County, the Wyoming Black 
  Hills and Northeastern Crook County. In South Dakota, the 
  Northern Black Hills and the Central Black Hills.

* WHEN...From midnight tonight to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Expect 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. This will create dangerous conditions.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ029-131115-
/O.CON.KUNR.WS.W.0009.180413T0600Z-180414T0000Z/
Southern Black Hills-
Including the city of Custer
205 PM MDT Thu Apr 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM MDT FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 3 to 6 inches are expected.

* WHERE...The Southern Black Hills.

* WHEN...From midnight tonight to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Winds gusting 
  as high as 35 mph will cause areas of blowing and drifting 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ027-041-131115-
/O.CON.KUNR.WS.W.0009.180413T0900Z-180414T0300Z/
Southern Foot Hills-Fall River-
Including the cities of Edgemont, Hot Springs, Ardmore, 
and Oelrichs
205 PM MDT Thu Apr 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM MDT
FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 4 to 7 inches, with localized amounts up to 
  10 inches, are expected.

* WHERE...The Southern Foot Hills and the Fall River County 
  Plains.

* WHEN...From 3 AM to 9 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Winds gusting 
  as high as 40 mph will cause areas of blowing and drifting 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

WYZ054-055-058-131115-
/O.CON.KUNR.WW.Y.0018.180413T0600Z-180414T0000Z/
Northern Campbell-Southern Campbell-Weston-
Including the cities of Gillette, Wright, Newcastle, and Upton
205 PM MDT Thu Apr 12 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM MDT FRIDAY...

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of 2 to 4 inches, with localized amounts up to 6 
  inches, are expected.

* WHERE...Northern Campbell County, Southern Campbell County and 
  the Weston County Plains.

* WHEN...From midnight tonight to 6 PM MDT Friday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the morning commute on Friday. In addition, 
  areas of poor visibility are likely. Tree branches could fall. 
  Winds gusting as high as 45 mph will cause areas of blowing 
  and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
001 
WWUS43 KUNR 130932
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
332 AM MDT Fri Apr 13 2018

...STRONG SPRING SNOW STORM TO AFFECT THE REGION...

.A strong storm system will affect the region through early
Saturday. Snow has developed over much of far western South Dakota
and far northeast Wyoming early this morning and will continue
through the day. Rain will change over to snow across areas to the
south and east of the Black Hills this morning. The snow will be 
heavy at times today across western South Dakota, and across 
south central South Dakota late today and tonight. Winds of 20 to 
35 mph with gusts to over 50 mph can be expected across much of 
the west central South Dakota plains to south central South 
Dakota, producing blizzard conditions. This includes the 
Interstate 90 corridor east of Rapid City. The heaviest amounts of
snow are expected to be south and east of the Black Hills, where 
one to two feet of snowfall is likely in many areas. Listen to 
NOAA Weather Radio or your local media for the latest updates on 
this storm.

SDZ013-014-026-030>032-042-043-073-074-140045-
/O.CON.KUNR.BZ.W.0002.180413T1200Z-180414T1200Z/
Northern Meade Co Plains-Ziebach-Rapid City-Custer Co Plains-
Pennington Co Plains-Haakon-Oglala Lakota-Jackson-
Southern Meade Co Plains-Hermosa Foot Hills-
Including the cities of Faith, Dupree, Rapid City, Folsom, Wall, 
Philip, Pine Ridge, Oglala, Kyle, Kadoka, Union Center, 
and Hermosa
332 AM MDT Fri Apr 13 2018

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 40
  to 45 mph will cause whiteout conditions in blowing snow. 
  Significant drifting of the snow is likely. Total snow 
  accumulations of 9 to 14 inches are expected, with amounts up to
  18 inches toward south central South Dakota.

* WHERE...Portions of northwestern and southwestern South Dakota.

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to impossible
  today and tonight. Tree branches could fall and some power 
  outages are likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ044-046-047-049-140045-
/O.CON.KUNR.BZ.W.0002.180413T1500Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
332 AM MDT Fri Apr 13 2018 /432 AM CDT Fri Apr 13 2018/

...BLIZZARD WARNING REMAINS IN EFFECT FROM 9 AM MDT /10 AM CDT/
THIS MORNING TO NOON MDT /1 PM CDT/ SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 50
  to 55 mph will cause whiteout conditions in blowing snow.
  Significant drifting of the snow is likely. Total snow
  accumulations of 14 to 20 inches are expected, with locally
  higher amounts possible.

* WHERE...Bennett, Mellette, Todd and Tripp Counties.

* WHEN...From 9 AM MDT /10 AM CDT/ this morning to noon MDT /1 
  PM CDT/ Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to impossible
  from this afternoon through Saturday morning. Damage to trees 
  and power lines is likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ001-002-012-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Harding-Perkins-Butte-
Including the cities of Buffalo, Lemmon, Bison, and Belle Fourche
332 AM MDT Fri Apr 13 2018

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

* WHAT...Heavy snow and blowing snow. Total snow accumulations of
  5 to 9 inches, with localized amounts up to 11 inches, are 
  expected.

* WHERE...Harding, Perkins and Butte counties.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions today.
  Winds gusting as high as 35 mph will cause areas of blowing and
  drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ024-028-WYZ056-057-071-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Northern Black Hills-Central Black Hills-Western Crook-
Wyoming Black Hills-Northeastern Crook-
Including the cities of Lead, Deadwood, Hill City, Mt Rushmore, 
Moorcroft, Hulett, Four Corners, Sundance, and Colony
332 AM MDT Fri Apr 13 2018

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

* WHAT...Heavy snow. Total snow accumulations of 6 to 12 inches 
  are expected, with localized higher amounts across the northern 
  Black Hills.

* WHERE...In Wyoming, Western Crook County, the Wyoming Black 
  Hills and Northeastern Crook County. In South Dakota, the 
  Northern Black Hills and the Central Black Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions today.
  Expect significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. This will create dangerous conditions.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ025-072-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Northern Foot Hills-Sturgis/Piedmont Foot Hills-
Including the cities of Spearfish and Sturgis
332 AM MDT Fri Apr 13 2018

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

* WHAT...Heavy snow and blowing snow. Total snow accumulations of
  9 to 15 inches are expected.

* WHERE...The Northern Foot Hills and the Sturgis/Piedmont Foot 
  Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Travel will be very difficult to impossible
  today. Winds gusting as high as 35 mph will cause areas of 
  blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ029-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Southern Black Hills-
Including the city of Custer
332 AM MDT Fri Apr 13 2018

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

* WHAT...Heavy snow. Total snow accumulations of 4 to 8 inches are
  expected.

* WHERE...The Southern Black Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions today.
  Expect significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. This will create dangerous conditions.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ027-041-140045-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0300Z/
Southern Foot Hills-Fall River-
Including the cities of Edgemont, Hot Springs, Ardmore, 
and Oelrichs
332 AM MDT Fri Apr 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

* WHAT...Heavy snow and blowing snow. Total snow accumulations of
  5 to 10 inches are expected.

* WHERE...The Southern Foot Hills and the Fall River County 
  Plains.

* WHEN...Until 9 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions today.
  Winds gusting as high as 35 mph will cause areas of blowing and
  drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

WYZ054-055-058-140000-
/O.CON.KUNR.WW.Y.0018.000000T0000Z-180414T0000Z/
Northern Campbell-Southern Campbell-Weston-
Including the cities of Gillette, Wright, Newcastle, and Upton
332 AM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow and blowing snow. Total snow accumulations of 2 to 5 
  inches are expected.

* WHERE...Northern Campbell County, Southern Campbell County and 
  the Weston County Plains.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions today. In
  addition, areas of poor visibility are likely. Winds gusting as
  high as 35 mph will cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
025 
WWUS43 KUNR 131203
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
603 AM MDT Fri Apr 13 2018

...STRONG SPRING SNOW STORM TO AFFECT THE REGION...

.A strong storm system will affect the region through early
Saturday. Snow has developed over much of far western South
Dakota and far northeast Wyoming early this morning and will
continue through the day. Rain will change over to snow across
areas to the south and east of the Black Hills this morning. The
snow will be heavy at times today across western South Dakota,
and across south central South Dakota late today and tonight.
Winds of 20 to 35 mph with gusts to over 50 mph can be expected
across much of the west central South Dakota plains to south
central South Dakota, producing blizzard conditions. This
includes the Interstate 90 corridor east of Rapid City. The
heaviest amounts of snow are expected to be south and east of the
Black Hills, where one to two feet of snowfall is likely in many
areas. Listen to NOAA Weather Radio or your local media for the
latest updates on this storm.

SDZ013-014-026-030>032-042-043-073-074-140315-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
Northern Meade Co Plains-Ziebach-Rapid City-Custer Co Plains-
Pennington Co Plains-Haakon-Oglala Lakota-Jackson-
Southern Meade Co Plains-Hermosa Foot Hills-
Including the cities of Faith, Dupree, Rapid City, Folsom, Wall, 
Philip, Pine Ridge, Oglala, Kyle, Kadoka, Union Center, 
and Hermosa
603 AM MDT Fri Apr 13 2018

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 40
  to 45 mph will cause whiteout conditions in blowing snow.
  Significant drifting of the snow is likely. Total snow
  accumulations of 8 to 14 inches are expected, with amounts up 
  to 18 inches toward south central South Dakota.

* WHERE...Portions of northwestern and southwestern South Dakota.

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible today and tonight. Tree branches could fall and 
  some power outages are likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ044-046-047-049-140315-
/O.CON.KUNR.BZ.W.0002.180413T1500Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
603 AM MDT Fri Apr 13 2018 /703 AM CDT Fri Apr 13 2018/

...BLIZZARD WARNING REMAINS IN EFFECT FROM 9 AM MDT /10 AM CDT/
THIS MORNING TO NOON MDT /1 PM CDT/ SATURDAY...

* WHAT...Blizzard conditions expected. Winds gusting as high as 
  50 to 55 mph will cause whiteout conditions in blowing snow. 
  Significant drifting of the snow is likely. Total snow 
  accumulations of 14 to 20 inches are expected, with locally 
  higher amounts possible.

* WHERE...Bennett, Mellette, Todd and Tripp Counties.

* WHEN...From 9 AM MDT /10 AM CDT/ this morning to noon MDT /1 
  PM CDT/ Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible from this afternoon through Saturday morning. 
  Damage to trees and power lines is likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ001-002-012-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Harding-Perkins-Butte-
Including the cities of Buffalo, Lemmon, Bison, and Belle Fourche
603 AM MDT Fri Apr 13 2018

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

* WHAT...Heavy snow and blowing snow. Total snow accumulations 
  of 5 to 9 inches, with localized amounts up to 11 inches, are 
  expected.

* WHERE...Harding, Perkins and Butte counties.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions 
  today. Winds gusting as high as 35 mph will cause areas of 
  blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ024-028-WYZ056-057-071-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Northern Black Hills-Central Black Hills-Western Crook-
Wyoming Black Hills-Northeastern Crook-
Including the cities of Lead, Deadwood, Hill City, Mt Rushmore, 
Moorcroft, Hulett, Four Corners, Sundance, and Colony
603 AM MDT Fri Apr 13 2018

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

* WHAT...Heavy snow. Total snow accumulations of 6 to 10 inches 
  are expected, with localized higher amounts across the northern 
  Black Hills.

* WHERE...In Wyoming, Western Crook County, the Wyoming Black 
  Hills and Northeastern Crook County. In South Dakota, the 
  Northern Black Hills and the Central Black Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions 
  today. Expect significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. This will create dangerous conditions.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ025-072-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Northern Foot Hills-Sturgis/Piedmont Foot Hills-
Including the cities of Spearfish and Sturgis
603 AM MDT Fri Apr 13 2018

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

* WHAT...Heavy snow and blowing snow. Total snow accumulations of
  7 to 14 inches are expected.

* WHERE...The Northern Foot Hills and the Sturgis/Piedmont Foot 
  Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Travel will be very difficult to 
  impossible today. Winds gusting as high as 35 mph will cause 
  areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ029-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Southern Black Hills-
Including the city of Custer
603 AM MDT Fri Apr 13 2018

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

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

* WHERE...The Southern Black Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions 
  today. Expect significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. This will create dangerous conditions.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ027-041-140300-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0300Z/
Southern Foot Hills-Fall River-
Including the cities of Edgemont, Hot Springs, Ardmore, 
and Oelrichs
603 AM MDT Fri Apr 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

* WHAT...Heavy snow and blowing snow. Total snow accumulations of
  5 to 10 inches are expected.

* WHERE...The Southern Foot Hills and the Fall River County 
  Plains.

* WHEN...Until 9 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions 
  today. Winds gusting as high as 35 mph will cause areas of 
  blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

WYZ054-055-058-140000-
/O.CON.KUNR.WW.Y.0018.000000T0000Z-180414T0000Z/
Northern Campbell-Southern Campbell-Weston-
Including the cities of Gillette, Wright, Newcastle, and Upton
603 AM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow and blowing snow. Total snow accumulations of 1 to 4 
  inches are expected.

* WHERE...Northern Campbell County, Southern Campbell County and 
  the Weston County Plains.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions today. 
  In addition, areas of poor visibility are likely. Winds 
  gusting as high as 35 mph will cause areas of blowing and 
  drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
125 
WWUS43 KUNR 131618
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
1018 AM MDT Fri Apr 13 2018

...STRONG SPRING SNOW STORM TO AFFECT THE REGION...

.A strong storm system will affect the region through early
Saturday. Snow will continue across the area, and be heavy at
times. Winds of 20 to 35 mph with gusts to over 50 mph can be 
expected across much of the west central South Dakota plains to 
south central South Dakota, producing blizzard conditions. This 
includes the Interstate 90 corridor east of Rapid City. The 
heaviest amounts of snow are expected to be south and east of the 
Black Hills, where one to two feet of snowfall is likely in many 
areas. Listen to NOAA Weather Radio or your local media for the 
latest updates on this storm.

WYZ056-140000-
/O.CAN.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
/O.EXA.KUNR.WW.Y.0018.000000T0000Z-180414T0000Z/
Western Crook-
Including the cities of Moorcroft and Hulett
1018 AM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of up to 2 inches 
  are expected.

* WHERE...Western Crook County.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Expect 
  reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

WYZ054-055-131730-
/O.CAN.KUNR.WW.Y.0018.000000T0000Z-180414T0000Z/
Northern Campbell-Southern Campbell-
Including the cities of Gillette and Wright
1018 AM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Light snow can be expected at times, with snow accumulations up to
an inch. With lighter snow amounts expected, the winter weather
advisory has been cancelled for Campbell County.

$$

SDZ013-014-026-030>032-042-043-073-074-140800-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
Northern Meade Co Plains-Ziebach-Rapid City-Custer Co Plains-
Pennington Co Plains-Haakon-Oglala Lakota-Jackson-
Southern Meade Co Plains-Hermosa Foot Hills-
Including the cities of Faith, Dupree, Rapid City, Folsom, Wall, 
Philip, Pine Ridge, Oglala, Kyle, Kadoka, Union Center, 
and Hermosa
1018 AM MDT Fri Apr 13 2018

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY...

* WHAT...Blizzard conditions. Winds gusting as high as 50 mph 
  will cause whiteout conditions in blowing snow. Significant 
  drifting of the snow is likely. Additional snow accumulations of
  6 to 10 inches, with localized amounts up to 12 inches, are 
  expected.

* WHERE...Portions of northwestern and southwestern South Dakota.

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible. Damage to trees and power lines is likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ044-046-047-049-140800-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
1018 AM MDT Fri Apr 13 2018 /1118 AM CDT Fri Apr 13 2018/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT /1 PM CDT/
SATURDAY...

* WHAT...Blizzard conditions. Winds gusting as high as 50 mph 
  will cause whiteout conditions in blowing snow. Significant 
  drifting of the snow is likely. Additional snow accumulations 
  of 16 to 20 inches are expected.

* WHERE...Bennett, Mellette, Todd and Tripp.

* WHEN...Until noon MDT /1 PM CDT/ Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible, including during the evening commute. Damage to 
  trees and power lines is likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ001-002-012-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Harding-Perkins-Butte-
Including the cities of Buffalo, Lemmon, Bison, and Belle Fourche
1018 AM MDT Fri Apr 13 2018

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

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

* WHERE...Harding, Perkins and Butte.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 40 mph will cause areas of blowing 
  and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ024-028-WYZ057-071-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Northern Black Hills-Central Black Hills-Wyoming Black Hills-
Northeastern Crook-
Including the cities of Lead, Deadwood, Hill City, Mt Rushmore, 
Four Corners, Sundance, and Colony
1018 AM MDT Fri Apr 13 2018

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

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

* WHERE...In Wyoming, the Wyoming Black Hills and Northeastern 
  Crook County. In South Dakota, the Northern Black Hills and 
  the Central Black Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Expect significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. This will create dangerous conditions.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ025-072-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Northern Foot Hills-Sturgis/Piedmont Foot Hills-
Including the cities of Spearfish and Sturgis
1018 AM MDT Fri Apr 13 2018

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

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

* WHERE...The Northern Foot Hills and the Sturgis/Piedmont Foot 
  Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 40 mph will cause areas of blowing 
  and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

SDZ029-140000-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Southern Black Hills-
Including the city of Custer
1018 AM MDT Fri Apr 13 2018

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

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

* WHERE...The Southern Black Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Expect significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. This will create dangerous conditions.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ027-041-140300-
/O.CON.KUNR.WS.W.0009.000000T0000Z-180414T0300Z/
Southern Foot Hills-Fall River-
Including the cities of Edgemont, Hot Springs, Ardmore, 
and Oelrichs
1018 AM MDT Fri Apr 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

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

* WHERE...The Southern Foot Hills and the Fall River County 
  Plains.

* WHEN...Until 9 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 40 mph will cause areas of blowing 
  and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will create
dangerous conditions. The latest road conditions can be obtained
by calling 5 1 1.

&&

$$

WYZ058-140000-
/O.CON.KUNR.WW.Y.0018.000000T0000Z-180414T0000Z/
Weston-
Including the cities of Newcastle and Upton
1018 AM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow and blowing snow. Additional snow accumulations of 
  up to two inches are expected.

* WHERE...The Weston County Plains.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. In 
  addition, some reductions to visibility are likely. Winds 
  gusting as high as 35 mph will cause patchy blowing and 
  drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
786 
WWUS43 KUNR 132027
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
227 PM MDT Fri Apr 13 2018

...SNOW STORM CONTINUES ACROSS THE SOUTH DAKOTA PLAINS...

.The storm system will continue to affect much of South Dakota
through the evening hours. Snow will continue across much of the 
area, and be heavy at times, especially across south central South
Dakota. Winds of 20 to 35 mph with gusts to 50 mph can be 
expected across the South Dakota plains, producing blizzard 
conditions. This includes the Interstate 90 corridor east of Rapid
City. The heaviest amounts of snow are expected to be south and 
east of the Black Hills, where one to two feet of snowfall is 
likely in many areas. Listen to NOAA Weather Radio or your local 
media for the latest updates on this storm.

SDZ013-014-026-073-140000-
/O.CAN.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
/O.NEW.KUNR.WW.Y.0019.180413T2027Z-180414T0000Z/
Northern Meade Co Plains-Ziebach-Rapid City-
Southern Meade Co Plains-
Including the cities of Faith, Dupree, Rapid City, 
and Union Center
227 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...BLIZZARD WARNING IS CANCELLED...

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

* WHERE...The Northern Meade County Plains, Ziebach, the Rapid 
  City area and the Southern Meade County Plains.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions, including
  during the evening commute. In addition, areas of poor
  visibility are likely. Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ074-140300-
/O.CAN.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
/O.NEW.KUNR.WW.Y.0019.180413T2027Z-180414T0300Z/
Hermosa Foot Hills-
Including the city of Hermosa
227 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 PM MDT THIS
EVENING...
...BLIZZARD WARNING IS CANCELLED...

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

* WHERE...The Hermosa Foot Hills.

* WHEN...Until 9 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. In addition, areas of 
  poor visibility are likely. Winds gusting as high as 35 mph 
  will cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ072-140000-
/O.CAN.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
/O.NEW.KUNR.WW.Y.0019.180413T2027Z-180414T0000Z/
Sturgis/Piedmont Foot Hills-
Including the city of Sturgis
227 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow and blowing snow. Additional snow accumulations of 
  1 to 2 inches are expected.

* WHERE...The Sturgis/Piedmont Foot Hills.

* WHEN...Until 6 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. In addition, areas of 
  poor visibility are likely. Winds gusting as high as 30 mph 
  will cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ027-041-140300-
/O.CAN.KUNR.WS.W.0009.000000T0000Z-180414T0300Z/
/O.NEW.KUNR.WW.Y.0019.180413T2027Z-180414T0300Z/
Southern Foot Hills-Fall River-
Including the cities of Edgemont, Hot Springs, Ardmore, 
and Oelrichs
227 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 PM MDT THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow and blowing snow. Additional snow accumulations of 
  1 to 2 inches are expected.

* WHERE...The Southern Foot Hills and the Fall River County 
  Plains.

* WHEN...Until 9 PM MDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. In addition, areas of 
  poor visibility are likely. Winds gusting as high as 35 mph 
  will cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means snow accumulations will
create hazardous conditions. Use caution when traveling. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ001-002-012-024-025-028-029-WYZ057-071-132130-
/O.CAN.KUNR.WS.W.0009.000000T0000Z-180414T0000Z/
Harding-Perkins-Butte-Northern Black Hills-Northern Foot Hills-
Central Black Hills-Southern Black Hills-Wyoming Black Hills-
Northeastern Crook-
Including the cities of Buffalo, Lemmon, Bison, Belle Fourche, 
Lead, Deadwood, Spearfish, Hill City, Mt Rushmore, Custer, 
Four Corners, Sundance, and Colony
227 PM MDT Fri Apr 13 2018

...WINTER STORM WARNING IS CANCELLED...

Some light snow may continue into the early evening hours with 
little to no additional accumulation expected. The winter storm 
warning has been cancelled.

$$

WYZ056-058-132130-
/O.CAN.KUNR.WW.Y.0018.000000T0000Z-180414T0000Z/
Western Crook-Weston-
Including the cities of Moorcroft, Hulett, Newcastle, and Upton
227 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Some light snow may continue into the early evening hours with 
little to no additional accumulation expected. The winter weather
advisory has been cancelled.

$$

SDZ030>032-042-043-141200-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
Custer Co Plains-Pennington Co Plains-Haakon-Oglala Lakota-
Jackson-
Including the cities of Folsom, Wall, Philip, Pine Ridge, Oglala,
Kyle, and Kadoka
227 PM MDT Fri Apr 13 2018

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY...

* WHAT...Blizzard conditions. Winds gusting as high as 45 mph will
  cause whiteout conditions in blowing snow. Significant drifting
  of the snow is likely. Additional snow accumulations of 4 to 6
  inches, with localized amounts up to 8 inches, are expected.

* WHERE...The Custer County Plains, the Pennington County Plains,
   Haakon, Oglala Lakota and Jackson.

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible, including during the evening commute. Tree 
  branches could fall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ044-046-047-049-141200-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
227 PM MDT Fri Apr 13 2018 /327 PM CDT Fri Apr 13 2018/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT /1 PM CDT/
SATURDAY...

* WHAT...Blizzard conditions. Winds gusting as high as 50 mph 
  will cause whiteout conditions in blowing snow. Significant 
  drifting of the snow is likely. Additional snow accumulations 
  of 10 to 15 inches are expected.

* WHERE...Bennett, Mellette, Todd and Tripp.

* WHEN...Until noon MDT /1 PM CDT/ Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible, including during the evening commute. Tree 
  branches could fall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
612 
WWUS43 KUNR 140003
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
603 PM MDT Fri Apr 13 2018

...SNOW STORM CONTINUES ACROSS THE SOUTH DAKOTA PLAINS...

.The storm system will continue to affect much of South Dakota
through the evening hours. Snow will continue across much of the
area, and be heavy at times, especially across south central
South Dakota. Winds of 20 to 35 mph with gusts to 50 mph can be
expected across the South Dakota plains, producing blizzard
conditions. This includes the Interstate 90 corridor east of
Rapid City. The heaviest amounts of snow are expected to be south
and east of the Black Hills, where one to two feet of snowfall is
likely in many areas. Listen to NOAA Weather Radio or your local
media for the latest updates on this storm.

SDZ027-041-074-140115-
/O.CAN.KUNR.WW.Y.0019.000000T0000Z-180414T0300Z/
Southern Foot Hills-Fall River-Hermosa Foot Hills-
Including the cities of Edgemont, Hot Springs, Ardmore, Oelrichs,
and Hermosa
603 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

$$

SDZ013-014-026-072-073-140115-
/O.EXP.KUNR.WW.Y.0019.000000T0000Z-180414T0000Z/
Northern Meade Co Plains-Ziebach-Rapid City-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Including the cities of Faith, Dupree, Rapid City, Sturgis, 
and Union Center
603 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY HAS EXPIRED...

$$

SDZ030>032-042-043-141200-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
Custer Co Plains-Pennington Co Plains-Haakon-Oglala Lakota-
Jackson-
Including the cities of Folsom, Wall, Philip, Pine Ridge, Oglala,
Kyle, and Kadoka
603 PM MDT Fri Apr 13 2018

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY...

* WHAT...Blizzard conditions. Winds gusting as high as 40 mph 
  will cause whiteout conditions in blowing snow. Significant 
  drifting of the snow is likely. Additional snow accumulations 
  of up to 2 inches, with localized amounts up to 5 inches, are 
  expected.

* WHERE...The Custer County Plains, the Pennington County Plains,
   Haakon, Oglala Lakota and Jackson.

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ044-046-047-049-141515-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
603 PM MDT Fri Apr 13 2018 /703 PM CDT Fri Apr 13 2018/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT /1 PM CDT/
SATURDAY...

* WHAT...Blizzard conditions. Winds gusting as high as 50 mph 
  will cause whiteout conditions in blowing snow. Significant 
  drifting of the snow is likely. Additional snow accumulations 
  of 6 to 9 inches, with localized amounts up to 15 inches, are 
  expected.

* WHERE...Bennett, Mellette, Todd and Tripp.

* WHEN...Until noon MDT /1 PM CDT/ Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible. Tree branches could fall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
756 
WWUS43 KUNR 140346
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
946 PM MDT Fri Apr 13 2018

...SNOW STORM CONTINUES ACROSS THE SOUTH DAKOTA PLAINS...

.The storm system will continue to affect much of central South 
Dakota through the night. Snow will continue and be heavy at 
times, especially across south central South Dakota. Winds of 20 
to 35 mph with gusts to 50 mph can be expected across central 
South Dakota, producing blizzard conditions. This includes the 
Interstate 90 corridor east of Wall. The heaviest amounts of snow
are expected to be south and east of the Badlands, where one to 
two feet of storm total snowfall is likely.

SDZ030-031-140500-
/O.CAN.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
Custer Co Plains-Pennington Co Plains-
Including the cities of Folsom and Wall
946 PM MDT Fri Apr 13 2018

...BLIZZARD WARNING IS CANCELLED...

$$

SDZ032-042-043-141200-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
Haakon-Oglala Lakota-Jackson-
Including the cities of Philip, Pine Ridge, Oglala, Kyle, 
and Kadoka
946 PM MDT Fri Apr 13 2018

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY...

* WHAT...Blizzard conditions. Winds gusting as high as 35 mph 
  will cause whiteout conditions in blowing snow. Significant 
  drifting of the snow is likely. Additional snow accumulations 
  of 1 to 3 inches are expected.

* WHERE...Haakon, Oglala Lakota and Jackson.

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ044-046-047-049-141800-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
946 PM MDT Fri Apr 13 2018 /1046 PM CDT Fri Apr 13 2018/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT /1 PM CDT/
SATURDAY...

* WHAT...Blizzard conditions. Winds gusting as high as 50 mph 
  will cause whiteout conditions in blowing snow. Significant 
  drifting of the snow is likely. Additional snow accumulations 
  of 6 to 9 inches, with localized amounts up to 11 inches, are 
  expected.

* WHERE...Bennett, Mellette, Todd and Tripp.

* WHEN...Until noon MDT /1 PM CDT/ Saturday.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible. Tree branches could fall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
564 
WWUS43 KUNR 140914
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
314 AM MDT Sat Apr 14 2018

...SNOW STORM CONTINUES ACROSS THE SOUTH CENTRAL SOUTH DAKOTA 
PLAINS...

.The storm system will continue to affect much of central South
Dakota through the early morning hours. Snow will continue, heavy
at times across Tripp County and eastern portions of Mellette and
Todd counties. Winds of 20 to 35 mph with gusts to 45 mph can be 
expected across south central South Dakota, producing blizzard 
conditions. This includes the Interstate 90 corridor east of 
Kadoka. 

SDZ032-042-141015-
/O.CAN.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
Haakon-Oglala Lakota-
Including the cities of Philip, Pine Ridge, Oglala, and Kyle
314 AM MDT Sat Apr 14 2018

...BLIZZARD WARNING IS CANCELLED...

Snow has generally ended and winds are decreasing across the area. 

$$

SDZ043-141200-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
Jackson-
Including the city of Kadoka
314 AM MDT Sat Apr 14 2018

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT EARLY THIS
MORNING...

* WHAT...Blizzard conditions. Winds gusting as high as 40 mph will
  cause whiteout conditions in blowing snow. Significant drifting
  of the snow is likely. Additional snow accumulations of up to 1
  inch is expected.

* WHERE...Jackson County.

* WHEN...Until 6 AM MDT early this morning.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$

SDZ044-046-047-049-141200-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
314 AM MDT Sat Apr 14 2018 /414 AM CDT Sat Apr 14 2018/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT /1 PM CDT/
TODAY...

* WHAT...Blizzard conditions. Winds gusting as high as 45 mph will
  cause whiteout conditions in blowing snow. Significant drifting
  of the snow is likely. Additional snow accumulations of 1 to 4 
  inches are expected. 

* WHERE...Bennett, Mellette, Todd and Tripp counties.

* WHEN...Until noon MDT /1 PM CDT/ today.

* ADDITIONAL DETAILS...Travel will be very dangerous to
  impossible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
785 
WWUS43 KUNR 141158
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
558 AM MDT Sat Apr 14 2018

...SNOW STORM CONTINUES ACROSS THE SOUTH CENTRAL SOUTH DAKOTA
PLAINS...

.The storm system will continue to affect much of south central 
South Dakota through the morning hours. Snow will continue early 
this morning, gradually tapering off from west to east by early 
afternoon. Winds of 20 to 30 mph with gusts to 45 mph can be 
expected across south central South Dakota, producing blizzard 
conditions at times. 

SDZ043-141300-
/O.EXP.KUNR.BZ.W.0002.000000T0000Z-180414T1200Z/
Jackson-
Including the city of Kadoka
558 AM MDT Sat Apr 14 2018

...BLIZZARD WARNING WILL EXPIRE AT 6 AM MDT...

Winds are gradually decreasing and lingering light snow will end
early this morning. 

$$

SDZ044-046-047-049-141800-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1800Z/
Bennett-Mellette-Todd-Tripp-
Including the cities of Martin, White River, Mission, and Winner
558 AM MDT Sat Apr 14 2018 /658 AM CDT Sat Apr 14 2018/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT /1 PM CDT/
TODAY...

* WHAT...Blizzard conditions. Winds gusting as high as 45 mph will
  cause whiteout conditions in blowing snow. Significant drifting
  of the snow is likely. Additional snow accumulations of up to 3 
  inches are expected.

* WHERE...Bennett, Mellette, Todd and Tripp.

* WHEN...Until noon MDT /1 PM CDT/ today.

* ADDITIONAL DETAILS...Travel will be very dangerous to 
  impossible. Tree branches could fall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
228 
WWUS43 KUNR 141516
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
916 AM MDT Sat Apr 14 2018

...SNOW STORM CONTINUES ACROSS THE SOUTH CENTRAL SOUTH DAKOTA
PLAINS...

.The storm system will continue to affect much of south central
South Dakota through the morning hours. Snow will continue early
this morning, gradually tapering off from west to east by early
afternoon. Winds of 20 to 30 mph with gusts to 40 mph can be
expected across south central South Dakota, producing blizzard
conditions at times.

SDZ044-141630-
/O.CAN.KUNR.BZ.W.0002.000000T0000Z-180414T1800Z/
Bennett-
Including the city of Martin
916 AM MDT Sat Apr 14 2018

...BLIZZARD WARNING IS CANCELLED...

Conditions continue to improve across Bennett County. Therefore
the blizzard warning has been cancelled for Bennett County.

$$

SDZ046-047-049-141800-
/O.CON.KUNR.BZ.W.0002.000000T0000Z-180414T1800Z/
Mellette-Todd-Tripp-
Including the cities of White River, Mission, and Winner
1016 AM CDT Sat Apr 14 2018

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* WHAT...Blizzard conditions. Winds gusting as high as 40 mph will
  cause whiteout conditions in blowing snow. Significant drifting
  of the snow is likely. Additional snow accumulations of less
  than an inch are expected.

* WHERE...Mellette, Todd and Tripp.

* WHEN...Until noon MDT /1 PM CDT/ today.

* ADDITIONAL DETAILS...Travel will be very dangerous to
  impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means the combination of snow, blowing snow,
and strong winds will create dangerous whiteout conditions. The
latest road conditions can be obtained by calling 5 1 1.

&&

$$
663 
WWUS43 KUNR 141758
WSWUNR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Rapid City SD
1158 AM MDT Sat Apr 14 2018


SDZ046-047-049-141900-
/O.EXP.KUNR.BZ.W.0002.000000T0000Z-180414T1800Z/
Mellette-Todd-Tripp-
Including the cities of White River, Mission, and Winner
1258 PM CDT Sat Apr 14 2018

...BLIZZARD WARNING WILL EXPIRE AT 1 PM CDT THIS AFTERNOON...

The blizzard warning across south central South Dakota will expire
at 1 pm CDT. Snowfall has diminished across the area in the last
several hours, with visibility in most areas improving. There will
be some local areas of reduced visibility with blowing and
drifting snow for the next several hours before winds subside late
this afternoon.

$$

What forecasters said that day

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

NWS Rapid City, SD wrote its last area forecast discussion before this blizzard warning went out at Apr 11, 11:24 PM MDT, 3 hours 52 minutes earlier.

Area forecast discussion, Apr 11, 11:24 PM MDT, 3 hours 52 minutes before
Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1124 PM MDT Wed Apr 11 2018

.DISCUSSION...(This Evening Through Wednesday)
Issued at 241 PM MDT Wed Apr 11 2018

Upper level analysis shows slight ridging over the
western/central CONUS, with a trough moving into the Pacific
Northwest. Satellite shows mostly cloudy skies over the northern
plains, clearing from west to east. Scattered rain showers continue
to move through the CWA, mainly across northwestern SD, and there
has even been some lighting. Surface low sits over northeastern
WY/southwestern SD. Southwesterly winds earlier today have helped
temperatures warm into the 60s and 70s across southern portions of
the area, but winds are becoming gusty from the northwest behind
a cold front. Temperatures across northwestern SD remain in the
40s.

Upper trough will move onshore early Thursday, and chances for
precipitation will increase as low pressure approaches the region.
Temperatures will be cooler Thursday, but still warm enough for
rain. Weak theta-e advection and CAPE may allow for a few isolated
thunderstorms as well, which some of the hi-res models are picking
up on. As the surface low moves through WY, easterly winds will
increase across the CWA, especially over northeastern WY and
northwestern SD.

Models continue to come into better agreement on the southward track
of the low. The 700 mb low will shift from southeastern MT to
central NE Thursday night, with precip spreading over the region. As
cold air wraps into the area, rain will change to snow from
northwest to southeast. With plenty of moisture associated with this
system, heavy snow is expected to fall throughout Friday. Models
continue to indicate enhanced QPF across south central SD, with
around 1.5" of liquid precipitation expected there. Snowfall
rates will be particularly high (1-2" per hour) across south
central SD Friday afternoon, when frontogenesis strengthens
beneath the left exit region of the upper jet. Have shifted
highest snow amounts farther southeast into south central SD, with
over a foot possible there. Still expecting several inches of
heavy snow across much of western SD, but northeastern WY and the
southern Hills may see just a few inches. Pressure rises of 4-6
mb/3hrs support strong northerly winds Friday behind the low,
sustained 25 to 35 mph with gusts to 55 mph. Some stronger gusts
will be possible just east of the Black Hills, as well as across
south central SD. Will leave watch as it is, other than adding
blizzard wording to south central SD.

Snow and gusty winds will diminish Saturday morning as the low
shifts eastward. Cold airmass and fresh snowfall will keep
temperatures in the mid 30s to mid 40s on Saturday. Temperatures
will begin to warm Sunday into early next week, and conditions will
be dry as an upper ridge develops; however, another low pressure
system could bring some cooler temperatures and more precipitation
to the region towards the middle of next week.

&&

.AVIATION...(For the 06Z TAFS Through 06Z Thursday Night)
Issued At 1121 PM MDT Wed Apr 11 2018

Ahead of an upcoming storm system, chances for precipitation will
increase late tonight and persist into Thursday. Areas MVFR CIGS
will develop under the best -SHRA (-SN up high) mainly across far
northeast WY into northwest SD. Gusty east-southeast winds will
develop Thursday morning and persist into Thursday afternoon
which will feed moisture and create possible -TSRA late. Colder
air will push into the region Thursday night as the storm wraps
and and conditions deteriorate to IFR/LIFR due to snow and low
CIGS.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...Winter Storm Watch from late Thursday night through Friday
     evening for SDZ001-002-012>014-024>032-041>044-072>074.

     Winter Storm Watch from Friday afternoon through Saturday
     morning for SDZ046-047-049.

WY...Winter Storm Watch from late Thursday night through Friday
     evening for WYZ054>058-071.

&&

DISCUSSION...Pojorlie
AVIATION...Helgeson
Hazardous weather outlook, Apr 11, 5:30 AM MDT, 21 hours 46 minutes before
Hazardous Weather Outlook
National Weather Service Rapid City SD
530 AM MDT Wed Apr 11 2018

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-121130-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foot Hills-Rapid City-
Southern Foot Hills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Fall River-
Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Hermosa Foot Hills-Northern Campbell-Southern Campbell-
Western Crook-Wyoming Black Hills-Weston-Northeastern Crook-
530 AM MDT Wed Apr 11 2018 /630 AM CDT Wed Apr 11 2018/

This Hazardous Weather Outlook is for western South Dakota and
northeastern Wyoming.

.DAY ONE...Today and Tonight

No hazardous weather expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Some thunderstorms will be possible Thursday afternoon and evening.
Severe thunderstorms are not expected.

A strong storm system will affect the region from late Thursday
night through Friday night. Rain will change to snow from
northwest to southeast Thursday night and early Friday over
northeast Wyoming and much of western South Dakota, and by Friday
afternoon over south central South Dakota. The snow could be
heavy at times Friday into Friday evening. Winds of 20 to 35 mph
with gusts to around 50 mph will be possible, mainly on the South
Dakota plains, and especially to the east of the Black Hills.
This includes the Interstate 90 corridor. There remains a good
deal of uncertainty with this system that could significantly
affect the track and alter current snowfall and wind forecasts.
Stay tuned for the latest updates on this storm.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 3:16 AM MDTWinter Storm WarningUNRButte, Custer, Fall River, Harding, Lawrence, Meade and 2 more35 hr
Apr 12, 1:51 PM MDTRiver Flood WarningUNRHarding65 hr
Apr 12, 5:14 PM MDTSpecial Weather StatementUNR31 min
Apr 12, 5:50 PM MDTSpecial Weather StatementUNR40 min

Nearby

Blizzard Warnings in South Dakota, 2018Every blizzard 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.