Alert archive / Nebraska / Winter Storm Warnings in 2018

Winter Storm Warning 13, NWS Cheyenne, WY

April 12, 20188 counties in Nebraska; Niobrara County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at Apr 12, 2018, 12:22 PM MDT for 8 counties in Nebraska; Niobrara County, Wyoming. It took effect at Apr 13, 2018, 6:00 AM MDT. It was in force for 24 hr. 22 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, 12:22 PM MDT (18:22 UTC)
In effect from
Apr 13, 2018, 6:00 AM MDT
Expired
Apr 14, 2018, 6:00 AM MDT
In force
24 hr
Issued by
NWS Cheyenne, WY

Counties Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Niobrara County, WY

The radar

The Cheyenne radar (KCYS), 143 km from the middle of the area, began a volume at 18:27 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, 7:00 AM MDTSNOW 112 Se Montrose, NE
Apr 13, 7:00 AM MDTSNOW 1Harrison, NE
Apr 13, 7:00 AM MDTSNOW 23 Sw Chadron, NE
Apr 13, 9:17 AM MDTHEAVY SNOW 112 Wnw Harrisburg, NE1/8TH MILE VISIBILITY WITH WIND SPEEDS OF 20 TO 30 MPH.
Apr 13, 9:57 AM MDTHEAVY SNOW 23 E Gurley, NEVISIBILITY 100-150FT. HEAVY WET SNOW WITH STRONG WINDS CAUSING TREE LIMBS TO BREAK.
Apr 13, 11:00 AM MDTSNOW 5Dalton, NE
Apr 13, 12:05 PM MDTHEAVY SNOW 42 E Gurley, NE3 INCHES OF SNOW 1 INCH OF SLUSH. TREES ARE BENT OVER FROM THE SNOW. 2FT DRIFTS IN SHELTERED AREAS.
Apr 13, 12:18 PM MDTHEAVY SNOW 56 Ne Alliance, NE
Apr 13, 12:24 PM MDTHEAVY SNOW 4Se Chadron, NEVISIBILITY IS AROUND 1/4 OF A MILE.
Apr 13, 4:25 PM MDTSNOW 2.52 Wnw Scottsbluff, NESNOW DEPTH 1 INCH. ESTIMATED DUE TO MELTING.
Apr 13, 4:55 PM MDTHEAVY SNOW 7Sidney, NE
Apr 13, 4:57 PM MDTHEAVY SNOW 109 N Potter, NE8 TO 10 INCHES.
Apr 13, 5:07 PM MDTSNOW 0Manville, WYNEAR BLIZZARD CONDITIONS. VERY POOR VISIBILITY. WIND GUSTS AT MYLES UPR SITE 33MPH.
Apr 13, 5:17 PM MDTHEAVY SNOW 76 Se Harrison, NEREPORT RECEIVED VIA FACEBOOK.
Apr 13, 5:43 PM MDTHEAVY SNOW 8Sidney, NEREGION 21 EM.
Apr 13, 6:06 PM MDTSNOW 4N Lake Minatare, NEREPORT RECEIVED VIA TWITTER. VERY STRONG WINDS ALONG WITH THE 4 INCHES OF SNOW. ROADS ARE ICE COVERED WITH UP TO 2 INCHES OF ICE.
Apr 13, 7:13 PM MDTHEAVY SNOW 8Harrison, NEREPORT RECEIVED VIA FACEBOOK. STILL SNOWING WITH STRONG WINDS.
Apr 13, 7:38 PM MDTHEAVY SNOW 6Manville, WYREPORT RECEIVED VIA FACEBOOK. STILL STRONG WINDS AND STILL SNOWING.
Apr 13, 8:45 PM MDTHEAVY SNOW 710 N Lusk, WYREPORT RECEIVED VIA FACEBOOK. WINDS EASING.
Apr 13, 9:45 PM MDTHEAVY SNOW 9Chadron, NEREPORT RECEIVED VIA TWITTER FROM KCSR. 8-9 INCHES OF SNOW IN CHADRON.
Apr 13, 10:48 PM MDTHEAVY SNOW 8Alliance, NEESTMATED 7-8 INCHES OF SNOW IN ALLIANCE. STILL SNOWING.
Apr 14, 5:37 AM MDTHEAVY SNOW 6Bushnell, NEREPORTED VIA SOCIAL MEDIA

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 12:00Z, 6.4 hours before the alert went out and 236 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 12:00Z 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 12:00Z on 2018-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 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
1252 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

738 
WWUS45 KCYS 121822
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
1222 PM MDT Thu Apr 12 2018

...Strong winds and snow returning to parts of southeastern
Wyoming and the western Nebraska Panhandle Thursday night through
Friday night...

NEZ002-003-095-096-WYZ102-130900-
/O.UPG.KCYS.WS.A.0008.180413T0600Z-180414T0600Z/
/O.NEW.KCYS.WS.W.0013.180413T1200Z-180414T0600Z/
Dawes-Box Butte-North Sioux-South Sioux-Niobrara County-
Including the cities of Chadron, Chadron St Park, Alliance, 
Harrison, Agate, Lusk, and Redbird
1222 PM MDT Thu Apr 12 2018

...WINTER STORM WARNING IN EFFECT FROM 6 AM FRIDAY TO MIDNIGHT
MDT FRIDAY NIGHT...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 4 to 8 inches, with localized amounts up to 12
  inches, are expected.

* WHERE...Niobrara county and the northern Nebraska Panhandle.

* WHEN...From 6 AM Friday to midnight MDT Friday night.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the evening commute on Friday. Winds gusting 
  as high as 50 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 will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

NEZ019-021-055-130900-
/O.UPG.KCYS.WS.A.0008.180413T1200Z-180414T0600Z/
/O.NEW.KCYS.WS.W.0013.180413T1200Z-180414T0600Z/
Scotts Bluff-Morrill-Cheyenne-
Including the cities of Scottsbluff, Gering, Angora, Bridgeport, 
Bayard, Redington, Brownson, and Sidney
1222 PM MDT Thu Apr 12 2018

...WINTER STORM WARNING IN EFFECT FROM 6 AM FRIDAY TO MIDNIGHT
MDT FRIDAY NIGHT...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 4 to 6 inches, with localized amounts up to 8 
  inches, are expected.

* WHERE...Scotts Bluff, Morrill and Cheyenne counties.

* WHEN...From 6 AM Friday to midnight MDT Friday night.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute on Friday. Damage to 
  trees and power lines is likely. Winds gusting as high as 60 
  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 will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

WYZ112-114-130900-
/O.CON.KCYS.WW.Y.0027.180413T0000Z-180414T0600Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
1222 PM MDT Thu Apr 12 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO MIDNIGHT MDT FRIDAY NIGHT...

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

* WHERE...Sierra Madre and Snowy Mountains of southern Wyoming.

* WHEN...From 6 PM this evening to midnight MDT Friday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions.
  Significant reductions in visibility are likely. Winds gusting
  as high as 50 mph will cause widespread blowing and drifting 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
7 follow-up statements
979 
WWUS45 KCYS 130845
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
245 AM MDT Fri Apr 13 2018

...Strong winds and snow returning to parts of southeastern
Wyoming and the western Nebraska Panhandle Thursday night through
Friday night...

NEZ020-054-132100-
/O.EXA.KCYS.WS.W.0013.180413T1200Z-180414T0600Z/
Banner-Kimball-
Including the cities of Harrisburg and Kimball
245 AM MDT Fri Apr 13 2018

...WINTER STORM WARNING IN EFFECT FROM 6 AM THIS MORNING TO
MIDNIGHT MDT TONIGHT...

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

* WHERE...Banner and Kimball counties in the southern Nebraska
  Panhandle.

* WHEN...From 6 AM this morning to midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the evening commute. Damage to power lines is
  possible. Winds gusting as high as 65 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 will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

NEZ002-003-019-021-055-095-096-WYZ102-132100-
/O.CON.KCYS.WS.W.0013.180413T1200Z-180414T0600Z/
Dawes-Box Butte-Scotts Bluff-Morrill-Cheyenne-North Sioux-
South Sioux-Niobrara County-
Including the cities of Chadron, Chadron St Park, Alliance, 
Scottsbluff, Gering, Angora, Bridgeport, Bayard, Redington, 
Brownson, Sidney, Harrison, Agate, Lusk, and Redbird
245 AM MDT Fri Apr 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING
TO MIDNIGHT MDT TONIGHT...

* WHAT...Heavy snow and blowing snow. Total snow accumulations of
  5 to 10 inches, with localized amounts up to 14 inches, are 
  expected.

* WHERE...Niobrara county and the Nebraska Panhandle.

* WHEN...From 6 AM this morning to midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on dangerous travel conditions. Damage
  to power lines is likely. Winds gusting as high as 60 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 will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

WYZ101-107-108-119-132100-
/O.EXB.KCYS.WW.Y.0027.180413T1200Z-180414T0600Z/
Converse County Lower Elevations-East Platte County-Goshen County-
East Laramie County-
Including the cities of Bill, Douglas, Deer Creek, Glenrock, 
Wheatland, Guernsey, Torrington, and Pine Bluffs
245 AM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO
MIDNIGHT MDT TONIGHT...

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

* WHERE...Mainly east of Interstate 25 from Douglas to Pine Bluffs.

* WHEN...From 6 AM this morning to midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions, including
  during the evening commute. In addition, areas of very poor
  visibility are likely at times. Winds gusting as high as 65 mph
  will cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WYZ112-114-132100-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-180414T0600Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
245 AM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

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

* WHERE...Sierra Madre and Snowy Ranges of southern Wyoming.

* WHEN...Until midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. 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 and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Expect snow covered roads and limited visibilities,
and use caution while driving. The latest road conditions for the
state you are calling from can be obtained by calling 5 1 1.

&&

$$
846 
WWUS45 KCYS 131725
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
1125 AM MDT Fri Apr 13 2018

...Strong winds and snow returning to parts of southeastern
Wyoming and the western Nebraska Panhandle Thursday night through
Friday night...

WYZ101-131830-
/O.CAN.KCYS.WW.Y.0027.000000T0000Z-180414T0600Z/
Converse County Lower Elevations-
Including the cities of Bill, Douglas, Deer Creek, and Glenrock
1125 AM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Some light snow will fall today but only light accumulations are
expected. There could still be some patchy slick spots on roads
especially over eastern parts of Converse county. 

$$

NEZ002-003-019>021-054-055-095-096-WYZ102-140130-
/O.CON.KCYS.WS.W.0013.000000T0000Z-180414T0600Z/
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-Niobrara County-
Including the cities of Chadron, Chadron St Park, Alliance, 
Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, 
Redington, Kimball, Brownson, Sidney, Harrison, Agate, Lusk, 
and Redbird
1125 AM MDT Fri Apr 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* WHAT...Snow and blowing snow. Additional snow accumulations of 
  2 to 5 inches, with localized amounts up to 8 inches, are 
  expected.

* WHERE...Niobrara county and the Nebraska Panhandle.

* WHEN...Until midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the evening commute. Damage to trees and power
  lines is likely. Winds gusting as high as 50 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 will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

WYZ107-108-112-114-119-140130-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-180414T0600Z/
East Platte County-Goshen County-Sierra Madre Range-Snowy Range-
East Laramie County-
Including the cities of Wheatland, Guernsey, Torrington, 
Centennial, Albany, and Pine Bluffs
1125 AM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches,
  with localized amounts up to 6 inches, are expected.

* WHERE...Sierra Madre and Snowy Ranges of southern Wyoming, and
  Goshen, eastern Platte and eastern Laramie counties.

* WHEN...Until midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions, including
  during the evening commute. Expect reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
654 
WWUS45 KCYS 132006
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
206 PM MDT Fri Apr 13 2018

...Strong winds and snow gradually tapering off tonight...

NEZ002-003-019>021-054-055-095-096-WYZ102-140600-
/O.CON.KCYS.WS.W.0013.000000T0000Z-180414T0600Z/
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-Niobrara County-
Including the cities of Chadron, Chadron St Park, Alliance, 
Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, 
Redington, Kimball, Brownson, Sidney, Harrison, Agate, Lusk, 
and Redbird
206 PM MDT Fri Apr 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* WHAT...Periods of snow with areas of blowing snow. Additional 
  snow accumulations of 1 to 3 inches, with localized amounts up 
  to 5 inches, are expected.

* WHERE...Niobrara county and the Nebraska Panhandle.

* WHEN...Until midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Road
  closures are likely in the central and southern Nebraska 
  Panhandle. Winds gusting as high as 50 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 will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

WYZ116-140600-
/O.EXA.KCYS.WW.Y.0027.000000T0000Z-180414T0600Z/
South Laramie Range-
Including the cities of Buford, Pumpkin Vine, and Vedauwoo
206 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...

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

* WHERE...The summit area east of Laramie.

* WHEN...Until midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions and likely
  road closures this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WYZ107-108-112-114-119-140600-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-180414T0600Z/
East Platte County-Goshen County-Sierra Madre Range-Snowy Range-
East Laramie County-
Including the cities of Wheatland, Guernsey, Torrington, 
Centennial, Albany, and Pine Bluffs
206 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* WHAT...Light snow. Additional snow accumulations of up to 2
  inches, with localized amounts up to 4 inches, are expected.

* WHERE...Sierra Madre and Snowy Ranges of southern Wyoming, and 
  Goshen, eastern Platte and eastern Laramie counties.

* WHEN...Until midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions, including
  during the evening commute. Expect reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
536 
WWUS45 KCYS 140250
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
850 PM MDT Fri Apr 13 2018

...Strong winds and snow gradually tapering off tonight...

WYZ102-140400-
/O.CAN.KCYS.WS.W.0013.000000T0000Z-180414T0600Z/
Niobrara County-
Including the cities of Lusk and Redbird
850 PM MDT Fri Apr 13 2018

...WINTER STORM WARNING IS CANCELLED...

Latest satellite and radar imagery showing that the heavier snow
has shifted to the east and south of Niobrara County. Therefore,
the Winter Storm Warning has been cancelled early. It will still
snow, but significant snow accumulations are no longer expected.

$$

WYZ107-112-114-116-140400-
/O.CAN.KCYS.WW.Y.0027.000000T0000Z-180414T0600Z/
East Platte County-Sierra Madre Range-Snowy Range-
South Laramie Range-
Including the cities of Wheatland, Guernsey, Centennial, Albany, 
Buford, Pumpkin Vine, and Vedauwoo
850 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Latest satellite and radar imagery showing that the heavier snow
has shifted to the east and south. Therefore, the Winter Weather
Advisory has been cancelled early. It will still snow, but 
significant snow accumulations are no longer expected.

$$

NEZ002-003-019>021-054-055-095-096-140600-
/O.CON.KCYS.WS.W.0013.000000T0000Z-180414T0600Z/
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-
Including the cities of Chadron, Chadron St Park, Alliance, 
Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, 
Redington, Kimball, Brownson, Sidney, Harrison, and Agate
850 PM MDT Fri Apr 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

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

* WHERE...Nebraska Panhandle.

* WHEN...Until midnight MDT tonight.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Tree 
  branches could fall. Winds gusting as high as 45 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 will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

WYZ108-119-140600-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-180414T0600Z/
Goshen County-East Laramie County-
Including the cities of Torrington and Pine Bluffs
850 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* WHAT...Snow. Additional snow accumulations of up to one inch 
  are expected.

* WHERE...Goshen and east Laramie County.

* WHEN...Until midnight MDT tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
155 
WWUS45 KCYS 140537
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
1137 PM MDT Fri Apr 13 2018

...Strong winds and snow gradually tapering off tonight...

NEZ002-019-095-096-140645-
/O.EXP.KCYS.WS.W.0013.000000T0000Z-180414T0600Z/
Dawes-Scotts Bluff-North Sioux-South Sioux-
Including the cities of Chadron, Chadron St Park, Scottsbluff, 
Gering, Harrison, and Agate
1137 PM MDT Fri Apr 13 2018

...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT...

Snow and strong winds have tapered off to flurries across the 
northern panhandle of Nebraska. Little to no additional snow 
accumulations are expected. 

$$

WYZ108-140645-
/O.EXP.KCYS.WW.Y.0027.000000T0000Z-180414T0600Z/
Goshen County-
Including the city of Torrington
1137 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT MDT TONIGHT...

Snow and gusty winds have diminished across Goshen county tonight.
additional snow accumulations are possible south of Torrington
near La Grange due to a locally heavy snowband, but expect
conditions to improve overnight.


$$

NEZ003-020-021-054-055-141200-
/O.EXT.KCYS.WS.W.0013.000000T0000Z-180414T1200Z/
Box Butte-Banner-Morrill-Kimball-Cheyenne-
Including the cities of Alliance, Harrisburg, Angora, Bridgeport,
Bayard, Redington, Kimball, Brownson, and Sidney
1137 PM MDT Fri Apr 13 2018

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM MDT SATURDAY...

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

* WHERE...Nebraska Panhandle.

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Plan on dangerous or impossible travel
  conditions. Power outages are ongoing and may linger into the
  morning. Winds gusting as high as 45 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 will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

WYZ119-140900-
/O.EXT.KCYS.WW.Y.0027.000000T0000Z-180414T0900Z/
East Laramie County-
Including the city of Pine Bluffs
1137 PM MDT Fri Apr 13 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 AM MDT
SATURDAY...

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

* WHERE...East Laramie County.

* WHEN...Until 3 AM MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. In
  addition, some reductions to visibility are likely. Winds 
  gusting as high as 45 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. Expect snow covered roads
and limited visibilities, and use caution while driving. The
latest road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$
120 
WWUS45 KCYS 140833
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
233 AM MDT Sat Apr 14 2018

WYZ119-140945-
/O.EXP.KCYS.WW.Y.0027.000000T0000Z-180414T0900Z/
East Laramie County-
Including the city of Pine Bluffs
233 AM MDT Sat Apr 14 2018

...WINTER WEATHER ADVISORY WILL EXPIRE AT 3 AM MDT EARLY THIS
MORNING...

Snow across eastern Laramie County will gradually come to an end
over the next few hours. Little or no additional snow accumulation
is expected, so will allow the Advisory to expire on time this
morning.


$$

NEZ003-020-021-054-055-141200-
/O.CON.KCYS.WS.W.0013.000000T0000Z-180414T1200Z/
Box Butte-Banner-Morrill-Kimball-Cheyenne-
Including the cities of Alliance, Harrisburg, Angora, Bridgeport,
Bayard, Redington, Kimball, Brownson, and Sidney
233 AM MDT Sat Apr 14 2018

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

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

* WHERE...Southern Nebraska Panhandle.

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Plan on dangerous or impossible travel 
  conditions. Power outages are ongoing and may linger into the 
  morning. Winds gusting as high as 45 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 will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$
830 
WWUS45 KCYS 141132
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
532 AM MDT Sat Apr 14 2018

NEZ003-020-021-054-055-141245-
/O.EXP.KCYS.WS.W.0013.000000T0000Z-180414T1200Z/
Box Butte-Banner-Morrill-Kimball-Cheyenne-
Including the cities of Alliance, Harrisburg, Angora, Bridgeport,
Bayard, Redington, Kimball, Brownson, and Sidney
532 AM MDT Sat Apr 14 2018

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

Snow has ended across most of the southern Nebraska panhandle
early this morning. Therefore, will allow the Winter Storm Warning
to expire as conditions continue to improve. 

$$

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 4:10 AM MDTHigh Wind WatchCYSBanner, Kimball8 hr
Apr 12, 12:25 PM MDTHigh Wind WarningCYSBanner, Kimball32 hr
Apr 11, 8:12 PM MDTRed Flag WarningCYS18 hr
Apr 12, 3:40 AM MDTWinter Weather AdvisoryCYSAlbany, Carbon, Converse, Goshen, Laramie, Platte47 hr
Apr 12, 4:10 AM MDTHigh Wind WarningCYSAlbany, Carbon, Laramie, Platte16 hr

Nearby

Winter Storm Warnings in Nebraska, 2018Winter Storm Warnings in Wyoming, 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.