Alert archive / Nebraska / Winter Storm Warnings in 2016

Winter Storm Warning 14, NWS Cheyenne, WY

November 16, 2016Dawes County, Sioux County, Nebraska

NWS Cheyenne, WY issued this winter storm warning at Nov 16, 2016, 2:33 PM MST for Dawes County, Sioux County, Nebraska. It took effect at Nov 17, 2016, 12:00 PM MST. It was in force for 10 hr. 5 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
Nov 16, 2016, 2:33 PM MST (21:33 UTC)
In effect from
Nov 17, 2016, 12:00 PM MST
Expired
Nov 17, 2016, 10:19 PM MST
In force
10 hr
Issued by
NWS Cheyenne, WY

Counties Dawes County, NE, Sioux County, NE

The radar

The Rapid City radar (KUDX), 176 km from the middle of the area, began a volume at 21:32 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
Nov 17, 3:48 PM MSTSNOW 2Chadron, NEREPORTED VIA TWITTER.
Nov 17, 5:09 PM MSTSNOW 2.5Chadron, NEKCSR RADIO STATION
Nov 17, 5:50 PM MSTSNOW 56 Se Harrison, NERECEIVED VIA FACEBOOK
Nov 17, 7:32 PM MSTSNOW 3.5Chadron, NEKCSR RADIO STATION
Nov 17, 10:20 PM MSTSNOW 4.2Chadron, NEKCSR IN CHADRON

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, 9.6 hours before the alert went out and 169 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 2016-11-16Temperature 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 12:00Z on 2016-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3541 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

720 
WWUS45 KCYS 162133
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
233 PM MST WED NOV 16 2016

...FIRST SIGNIFICANT SNOWFALL OF THE SEASON THURSDAY...

.A STRONG PACIFIC STORM SYSTEM WILL MOVE ACROSS THE FORECAST AREA
THURSDAY AND THURSDAY NIGHT BRINGING THE FIRST WIDESPREAD
SNOWFALL OF THE SEASON. SNOW ACCUMULATIONS LOOK TO AVERAGE IN THE
2 TO 5 INCH RANGE OVER MUCH OF THE AREA...WITH THE POSSIBILITY OF
HIGHER VALUES IN UPSLOPE FAVORED LOCATIONS SUCH AS THE SOUTHERN
LARAMIE RANGE...CHEYENNE RIDGE...PINE RIDGE...AND WILDCAT HILLS.
IN ADDITION...NORTH TO NORTHWEST WINDS WILL INCREASE THROUGH THE
DAY WITH GUSTS OF 25 TO 35 MPH LIKELY BY LATE AFTERNOON. THE
COMBINATION OF SNOW AND WIND WILL PRODUCE SOME DRIFTING OF SNOW
AND VISIBILITY REDUCED TO ONE HALF MILE AT TIMES THROUGH THE
AFTERNOON AND EVENING.

INITIAL WARM GROUND TEMPERATURES WILL MOST LIKELY MELT SNOW AT
FIRST...BUT TEMPERATURES WILL STEADILY COOL THROUGH THE DAY AND
SHOULD ALLOW SNOW TO ACCUMULATE PERHAPS EVEN ON ROAD SURFACES.
FOR THOSE PLANNING TO TRAVEL ACROSS PORTIONS OF SOUTHEAST WYOMING
AND THE NORTHERN NEBRASKA PANHANDLE...ROAD CONDITIONS COULD
BECOME HAZARDOUS IN THE AFTERNOON DUE TO SNOW AND REDUCED
VISIBILITY. THIS IS ESPECIALLY TRUE FOR INTERSTATE 80 OVER THE
SUMMIT...INTERSTATE 25 FROM DOUGLAS TO THE COLORADO STATE LINE...
AND STATE HIGHWAYS IN THE OPEN COUNTRY.

NEZ002-095-171100-
/O.UPG.KCYS.WS.A.0013.161117T1800Z-161118T0900Z/
/O.NEW.KCYS.WS.W.0014.161117T1900Z-161118T0700Z/
DAWES-NORTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...CHADRON ST PARK...HARRISON
233 PM MST WED NOV 16 2016

...WINTER STORM WARNING IN EFFECT FROM NOON THURSDAY TO MIDNIGHT
MST THURSDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM
NOON THURSDAY TO MIDNIGHT MST THURSDAY NIGHT. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT.

* TIMING...SNOW IS EXPECTED TO BEGIN BY THURSDAY AFTERNOON WITH
  MODERATE SNOWFALL POSSIBLE THROUGH THE EVENING.

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 5 INCHES ARE POSSIBLE
  WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES ALONG THE PINE
  RIDGE.

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 15 TO 25 MPH 
  GUSTING 25 TO 35 MPH COMBINED WITH FALLING SNOW WILL REDUCE 
  VISIBILITIES TO ONE HALF MILE. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY AS
  TEMPERATURES COOL THROUGH THE DAY. SIGNIFICANTLY REDUCED
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS. IF YOU MUST TRAVEL...
  PACK EXTRA FOOD...WATER...BLANKETS AND A FLASHLIGHT IN YOUR
  VEHICLE IN CASE OF AN EMERGENCY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

WYZ101-102-106>108-116>119-171100-
/O.UPG.KCYS.WS.A.0013.161117T1600Z-161118T0300Z/
/O.NEW.KCYS.WW.Y.0029.161117T1600Z-161118T0300Z/
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...BILL...DOUGLAS...DEER CREEK...
GLENROCK...LUSK...REDBIRD...BORDEAUX...WHEATLAND...GUERNSEY...
TORRINGTON...BUFORD...PUMPKIN VINE...VEDAUWOO...WHITAKER...
FEDERAL...HORSE CREEK...CHEYENNE...PINE BLUFFS
233 PM MST WED NOV 16 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM TO 8 PM MST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 9 AM TO 8 PM MST THURSDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

* TIMING...SNOW IS EXPECTED TO BEGIN THURSDAY MORNING WITH
  MODERATE SNOWFALL POSSIBLE THROUGH THE AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 4 INCHES ARE 
  POSSIBLE WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES IN THE 
  SOUTHERN LARAMIE RANGE AND CHEYENNE RIDGE. 

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 15 TO 25 MPH 
  GUSTING 25 TO 35 MPH COMBINED WITH FALLING SNOW WILL REDUCE 
  VISIBILITIES TO ONE HALF MILE. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY AS
  TEMPERATURES COOL THROUGH THE DAY. SIGNIFICANTLY REDUCED
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
SNOW AND STRONG WINDS WILL CREATE RESTRICTED VISIBILITIES AND
DRIFTING SNOW ALONG AREA ROADWAYS. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

&&

$$

NEZ003-019-096-171100-
/O.UPG.KCYS.WS.A.0013.161117T1800Z-161118T0900Z/
/O.NEW.KCYS.WW.Y.0029.161117T1900Z-161118T0700Z/
BOX BUTTE-SCOTTS BLUFF-SOUTH SIOUX-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...AGATE
233 PM MST WED NOV 16 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON THURSDAY TO
MIDNIGHT MST THURSDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM NOON THURSDAY TO MIDNIGHT MST THURSDAY NIGHT. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

* TIMING...SNOW IS EXPECTED TO INCREASE THURSDAY AFTERNOON WITH
  MODERATE SNOWFALL POSSIBLE THROUGH THE EVENING.

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 4 INCHES ARE POSSIBLE
  WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES.

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 15 TO 25 MPH 
  GUSTING 25 TO 35 MPH COMBINED WITH FALLING SNOW WILL REDUCE 
  VISIBILITIES TO ONE HALF MILE. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY AS
  TEMPERATURES COOL THROUGH THE DAY. SIGNIFICANTLY REDUCED
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
SNOW AND STRONG WINDS WILL CREATE RESTRICTED VISIBILITIES AND
DRIFTING SNOW ALONG AREA ROADWAYS. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

&&

$$

WYZ103>105-109>115-171100-
/O.NEW.KCYS.WW.Y.0029.161117T1600Z-161118T0300Z/
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-LARAMIE VALLEY-
INCLUDING THE CITIES OF...GARRETT...SEMINOE DAM...MEDICINE BOW...
SHIRLEY BASIN...RAWLINS...ARLINGTON...ELK MOUNTAIN...BAGGS...
SARATOGA...ENCAMPMENT...CENTENNIAL...ALBANY...BOSLER...LARAMIE
233 PM MST WED NOV 16 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM TO 8 PM MST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 9 AM TO 8 PM
MST THURSDAY.

* TIMING...SNOW SHOULD BEGIN THURSDAY MORNING AND CONTINUE THROUGH
  THE DAY.

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 3 TO 5 INCHES WITH 6 TO 10
  INCHES OVER THE MOUNTAINS. 

* WINDS/VISIBILITY...NORTHERLY AT 10 TO 20 MPH...LOCALLY HIGHER
  GUSTS. VISIBILITIES UNDER A MILE AT TIMES.

* IMPACTS...MOSTLY TO TRAVEL AS ROADS ARE EXPECTED TO BECOME SLICK
  AND HAZARDOUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

NEZ020-021-171100-
/O.NEW.KCYS.WW.Y.0029.161117T1900Z-161118T0700Z/
BANNER-MORRILL-
INCLUDING THE CITIES OF...HARRISBURG...ANGORA...BRIDGEPORT...
BAYARD...REDINGTON
233 PM MST WED NOV 16 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON THURSDAY TO
MIDNIGHT MST THURSDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM NOON THURSDAY TO MIDNIGHT MST THURSDAY NIGHT.

* TIMING...SNOW SHOULD BEGIN THURSDAY AFTERNOON AND CONTINUE
  THROUGH THE EVENING.

* TOTAL SNOW ACCUMULATIONS...GENERALLY 2 TO 4 INCHES WITH LOCALLY
  HIGHER AMOUNTS OVER HIGHER TERRAIN.

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 15 TO 25 MPH 
  GUSTING 25 TO 35 MPH COMBINED WITH FALLING SNOW WILL REDUCE 
  VISIBILITIES TO ONE HALF MILE.

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY AS
  TEMPERATURES COOL THROUGH THE DAY. SIGNIFICANTLY REDUCED
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
SNOW AND STRONG WINDS WILL CREATE RESTRICTED VISIBILITIES AND
DRIFTING SNOW ALONG AREA ROADWAYS. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

&&

$$
5 follow-up statements
096 
WWUS45 KCYS 171044
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
344 AM MST THU NOV 17 2016

...FIRST SIGNIFICANT SNOWFALL OF THE SEASON TODAY...

.A STRONG PACIFIC STORM SYSTEM WILL MOVE ACROSS THE FORECAST AREA
TODAY BRINGING THE FIRST WIDESPREAD SNOWFALL OF THE SEASON. SNOW
ACCUMULATIONS LOOK TO AVERAGE IN THE 2 TO 5 INCH RANGE OVER MUCH
OF THE AREA...WITH THE POSSIBILITY OF HIGHER VALUES IN UPSLOPE
FAVORED LOCATIONS SUCH AS THE SOUTHERN LARAMIE RANGE AND PINE
RIDGE. IN ADDITION...NORTH TO NORTHWEST WINDS WILL INCREASE
THROUGH THE DAY WITH GUSTS OF 25 TO 35 MPH LIKELY BY LATE
AFTERNOON. THE COMBINATION OF SNOW AND WIND WILL PRODUCE SOME
DRIFTING OF SNOW AND VISIBILITY REDUCED TO ONE HALF MILE AT TIMES
THROUGH THE AFTERNOON AND EVENING.

INITIAL WARM GROUND TEMPERATURES WILL MOST LIKELY MELT SNOW AT
FIRST...BUT TEMPERATURES WILL STEADILY COOL THROUGH THE DAY AND
SHOULD ALLOW SNOW TO ACCUMULATE PERHAPS EVEN ON ROAD SURFACES.
FOR THOSE PLANNING TO TRAVEL ACROSS PORTIONS OF SOUTHEAST WYOMING
AND THE NORTHERN NEBRASKA PANHANDLE...ROAD CONDITIONS COULD
BECOME HAZARDOUS IN THE AFTERNOON DUE TO SNOW AND REDUCED
VISIBILITY. THIS IS ESPECIALLY TRUE FOR INTERSTATE 80 OVER THE
SUMMIT...INTERSTATE 25 FROM DOUGLAS TO THE COLORADO STATE LINE...
AND STATE HIGHWAYS IN THE OPEN COUNTRY.

NEZ002-095-172100-
/O.CON.KCYS.WS.W.0014.161117T1900Z-161118T0700Z/
DAWES-NORTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...CHADRON ST PARK...HARRISON
344 AM MST THU NOV 17 2016

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO
MIDNIGHT MST TONIGHT...

* TIMING...SNOW IS EXPECTED TO BEGIN AROUND NOON TODAY WITH
  MODERATE SNOWFALL POSSIBLE THROUGH THE EVENING.

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 5 INCHES ARE 
  POSSIBLE WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES ALONG 
  THE PINE RIDGE. 

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 15 TO 25 MPH 
  GUSTING 25 TO 35 MPH COMBINED WITH FALLING SNOW WILL REDUCE 
  VISIBILITIES TO ONE HALF MILE THIS AFTERNOON. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY AS
  TEMPERATURES COOL THROUGH THE DAY. SIGNIFICANTLY REDUCED
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS. IF YOU MUST
  TRAVEL...PACK EXTRA FOOD...WATER...BLANKETS AND A FLASHLIGHT
  IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

WYZ101>119-172100-
/O.CON.KCYS.WW.Y.0029.161117T1600Z-161118T0300Z/
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...BILL...DOUGLAS...DEER CREEK...
GLENROCK...LUSK...REDBIRD...GARRETT...SEMINOE DAM...
MEDICINE BOW...SHIRLEY BASIN...BORDEAUX...WHEATLAND...GUERNSEY...
TORRINGTON...RAWLINS...ARLINGTON...ELK MOUNTAIN...BAGGS...
SARATOGA...ENCAMPMENT...CENTENNIAL...ALBANY...BOSLER...LARAMIE...
BUFORD...PUMPKIN VINE...VEDAUWOO...WHITAKER...FEDERAL...
HORSE CREEK...CHEYENNE...PINE BLUFFS
344 AM MST THU NOV 17 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM THIS
MORNING TO 8 PM MST THIS EVENING...

* TIMING...SNOW SHOULD BEGIN BY MID MORNING IN THE MOUNTAINS AND
  HIGH VALLEYS, SPREADING EAST ACROSS THE PLAINS THROUGH THE LATE
  MORNING AND AFTERNOON. LIGHT TO MODERATE SNOW WILL CONTINUE
  THROUGH THE DAY.

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 5 INCHES WITH 6 TO 
  10 INCHES OVER THE MOUNTAINS. 

* WINDS/VISIBILITY...NORTHERLY AT 10 TO 20 MPH GUSTING 20 TO 30
  MPH. VISIBILITIES UNDER A MILE AT TIMES.

* IMPACTS...MOSTLY TO TRAVEL AS ROADS ARE EXPECTED TO BECOME SLICK
  AND HAZARDOUS. THOSE PLANNING ON OUTDOOR RECREATION TODAY...BE
  PREPARED FOR SNOW AND COLD TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

NEZ003-019>021-096-172100-
/O.CON.KCYS.WW.Y.0029.161117T1900Z-161118T0700Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-SOUTH SIOUX-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...ANGORA...BRIDGEPORT...BAYARD...REDINGTON...AGATE
344 AM MST THU NOV 17 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
MIDNIGHT MST TONIGHT...

* TIMING...SNOW IS EXPECTED TO BEGIN AFTER NOON WITH LIGHT TO
  MODERATE SNOWFALL CONTINUING THROUGH THE EVENING.

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 4 INCHES ARE 
  POSSIBLE WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES. 

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 10 TO 20 MPH
  GUSTING 20 TO 30 MPH COMBINED WITH FALLING SNOW WILL REDUCE
  VISIBILITIES TO LESS THAN ONE MILE.

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY AS
  TEMPERATURES COOL THROUGH THE DAY. REDUCED VISIBILITIES WILL
  MAKE DRIVING HAZARDOUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
SNOW AND STRONG WINDS WILL CREATE RESTRICTED VISIBILITIES AND
DRIFTING SNOW ALONG AREA ROADWAYS. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

&&

$$
482 
WWUS45 KCYS 171722
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1022 AM MST THU NOV 17 2016

...FIRST SIGNIFICANT SNOWFALL OF THE SEASON TODAY...

.A STRONG PACIFIC STORM SYSTEM CENTERED OVER SOUTHWEST COLORADO
LATE THIS MORNING WILL MOVE ACROSS THE REGION THROUGH THIS EVENING 
BRINGING THE FIRST WIDESPREAD SNOWFALL OF THE SEASON. SNOW
ACCUMULATIONS LOOK TO AVERAGE IN THE 2 TO 5 INCH RANGE OVER MUCH
OF THE AREA...WITH THE POSSIBILITY OF HIGHER VALUES IN UPSLOPE
FAVORED LOCATIONS SUCH AS THE SOUTHERN LARAMIE RANGE AND PINE
RIDGE. IN ADDITION...NORTH TO NORTHWEST WINDS WILL INCREASE
THROUGH THE DAY WITH GUSTS OF 20 TO 30 MPH LIKELY BY LATE
AFTERNOON. THE COMBINATION OF SNOW AND WIND WILL PRODUCE SOME
DRIFTING OF SNOW AND VISIBILITY REDUCED TO ONE HALF MILE AT TIMES
THROUGH THE AFTERNOON AND EVENING.

THOSE PLANNING TO TRAVEL ACROSS PORTIONS OF SOUTHEAST WYOMING AND
THE NORTHERN NEBRASKA PANHANDLE...ROAD CONDITIONS COULD BECOME
HAZARDOUS IN THE AFTERNOON DUE TO SNOW AND REDUCED VISIBILITY.
THIS IS ESPECIALLY TRUE FOR INTERSTATE 80 OVER THE SUMMIT...
INTERSTATE 25 FROM DOUGLAS TO THE COLORADO STATE LINE...AND STATE
HIGHWAYS IN THE OPEN COUNTRY.

NEZ002-095-180000-
/O.CON.KCYS.WS.W.0014.161117T1900Z-161118T0700Z/
DAWES-NORTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...CHADRON ST PARK...HARRISON
1022 AM MST THU NOV 17 2016

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

* TIMING...SNOW IS EXPECTED TO BEGIN AROUND NOON TODAY WITH 
  MODERATE SNOWFALL POSSIBLE THROUGH THE EVENING. 

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 5 INCHES ARE 
  POSSIBLE WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES ALONG 
  THE PINE RIDGE. 

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 15 TO 25 MPH 
  GUSTING 25 TO 35 MPH COMBINED WITH FALLING SNOW WILL REDUCE 
  VISIBILITIES TO ONE HALF MILE AT TIMES THIS AFTERNOON. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY 
  AS TEMPERATURES COOL THROUGH THE DAY. SIGNIFICANTLY REDUCED 
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS. IF YOU MUST TRAVEL...
   PACK EXTRA FOOD...WATER...BLANKETS AND A FLASHLIGHT IN YOUR 
  VEHICLE IN CASE OF AN EMERGENCY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

WYZ101>119-180000-
/O.CON.KCYS.WW.Y.0029.000000T0000Z-161118T0300Z/
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...BILL...DOUGLAS...DEER CREEK...
GLENROCK...LUSK...REDBIRD...GARRETT...SEMINOE DAM...
MEDICINE BOW...SHIRLEY BASIN...BORDEAUX...WHEATLAND...GUERNSEY...
TORRINGTON...RAWLINS...ARLINGTON...ELK MOUNTAIN...BAGGS...
SARATOGA...ENCAMPMENT...CENTENNIAL...ALBANY...BOSLER...LARAMIE...
BUFORD...PUMPKIN VINE...VEDAUWOO...WHITAKER...FEDERAL...
HORSE CREEK...CHEYENNE...PINE BLUFFS
1022 AM MST THU NOV 17 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* TIMING...SNOW IS EXPECTED TO INCREASE IN COVERAGE LATE THIS
  MORNING AND CONTINUE INTO EARLY THIS EVENING. 

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 4 INCHES WITH 6 TO
  10 INCHES OVER THE MOUNTAINS.

* WINDS/VISIBILITY...NORTHERLY AT 10 TO 20 MPH GUSTING 20 TO 30 
  MPH. VISIBILITIES UNDER A MILE AT TIMES. 

* IMPACTS...MOSTLY TO TRAVEL AS ROADS ARE EXPECTED TO BECOME 
  SLICK AND HAZARDOUS. THOSE PLANNING ON OUTDOOR RECREATION 
  TODAY...BE PREPARED FOR SNOW AND COLD TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

NEZ003-019>021-096-180000-
/O.CON.KCYS.WW.Y.0029.161117T1900Z-161118T0700Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-SOUTH SIOUX-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...ANGORA...BRIDGEPORT...BAYARD...REDINGTON...AGATE
1022 AM MST THU NOV 17 2016

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

* TIMING...SNOW IS EXPECTED TO BEGIN AFTER NOON WITH LIGHT TO 
  MODERATE SNOWFALL CONTINUING THROUGH THE EVENING. 

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 4 INCHES ARE 
  POSSIBLE WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES. 

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 10 TO 20 MPH 
  GUSTING 20 TO 30 MPH COMBINED WITH FALLING SNOW WILL REDUCE 
  VISIBILITIES TO LESS THAN ONE MILE. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY 
  AS TEMPERATURES COOL THROUGH THE DAY. REDUCED VISIBILITIES 
  WILL MAKE DRIVING HAZARDOUS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
SNOW AND STRONG WINDS WILL CREATE RESTRICTED VISIBILITIES AND
DRIFTING SNOW ALONG AREA ROADWAYS. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

&&

$$
871 
WWUS45 KCYS 172137
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
237 PM MST THU NOV 17 2016

...FIRST SIGNIFICANT SNOWFALL OF THE SEASON TODAY...

.A STRONG PACIFIC STORM SYSTEM CENTERED OVER CENTRAL COLORADO
THURSDAY AFTERNOON MOVE ACROSS THE REGION THROUGH THIS EVENING
BRINGING THE FIRST WIDESPREAD SNOWFALL OF THE SEASON. SNOW
ACCUMULATIONS LOOK TO AVERAGE IN THE 2 TO 5 INCH RANGE OVER MUCH
OF THE AREA...WITH THE POSSIBILITY OF HIGHER VALUES IN UPSLOPE
FAVORED LOCATIONS SUCH AS THE SOUTHERN LARAMIE RANGE AND PINE
RIDGE. IN ADDITION...NORTH TO NORTHWEST WINDS AT 15 TO 25 MPH
WITH SOME HIGHER GUSTS WILL CONTINUE THROUGH THIS EVENING. THE
COMBINATION OF SNOW AND WIND WILL PRODUCE SOME DRIFTING OF SNOW
AND VISIBILITY REDUCED TO UNDER ONE HALF MILE AT TIMES THROUGH
THE AFTERNOON AND EVENING.

THOSE PLANNING TO TRAVEL ACROSS PORTIONS OF SOUTHEAST WYOMING AND
THE NORTHERN NEBRASKA PANHANDLE...ROAD CONDITIONS COULD BECOME
HAZARDOUS DUE TO SNOW AND REDUCED VISIBILITY. THIS IS ESPECIALLY
TRUE FOR INTERSTATE 80 OVER THE SUMMIT... INTERSTATE 25 FROM
DOUGLAS TO THE COLORADO STATE LINE...AND STATE HIGHWAYS IN THE
OPEN COUNTRY.

NEZ002-095-180700-
/O.CON.KCYS.WS.W.0014.000000T0000Z-161118T0700Z/
DAWES-NORTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...CHADRON ST PARK...HARRISON
237 PM MST THU NOV 17 2016

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

* TIMING...SNOW WILL CONTINUE THROUGH THIS EVENING WITH PERIODS OF
  MODERATE SNOWFALL POSSIBLE.

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 5 INCHES ARE 
  POSSIBLE WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES ALONG 
  THE PINE RIDGE. 

* WINDS/VISIBILITY...NORTH WINDS OF 15 TO 25 MPH GUSTING TO 35 MPH
  COMBINED WITH FALLING SNOW WILL REDUCE VISIBILITIES TO UNDER ONE
  HALF MILE AT TIMES. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY 
  AS TEMPERATURES COOL THROUGH THE DAY. SIGNIFICANTLY REDUCED 
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS. IF YOU MUST TRAVEL...
   PACK EXTRA FOOD...WATER...BLANKETS AND A FLASHLIGHT IN YOUR 
  VEHICLE IN CASE OF AN EMERGENCY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

NEZ003-019>021-096-180700-
/O.CON.KCYS.WW.Y.0029.000000T0000Z-161118T0700Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-SOUTH SIOUX-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...ANGORA...BRIDGEPORT...BAYARD...REDINGTON...AGATE
237 PM MST THU NOV 17 2016

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

* TIMING...SNOW IS EXPECTED TO BE WIDESPREAD BY LATE AFTERNOON
  AND CONTINUE THIS EVENING. 

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 4 INCHES ARE 
  POSSIBLE WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES. 

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 15 TO 25 MPH 
  GUSTING 20 TO 30 MPH COMBINED WITH FALLING SNOW WILL REDUCE 
  VISIBILITIES TO LESS THAN ONE MILE. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED. REDUCED
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
SNOW AND STRONG WINDS WILL CREATE RESTRICTED VISIBILITIES AND
DRIFTING SNOW ALONG AREA ROADWAYS. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

&&

$$

WYZ101>119-180300-
/O.CON.KCYS.WW.Y.0029.000000T0000Z-161118T0300Z/
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...BILL...DOUGLAS...DEER CREEK...
GLENROCK...LUSK...REDBIRD...GARRETT...SEMINOE DAM...
MEDICINE BOW...SHIRLEY BASIN...BORDEAUX...WHEATLAND...GUERNSEY...
TORRINGTON...RAWLINS...ARLINGTON...ELK MOUNTAIN...BAGGS...
SARATOGA...ENCAMPMENT...CENTENNIAL...ALBANY...BOSLER...LARAMIE...
BUFORD...PUMPKIN VINE...VEDAUWOO...WHITAKER...FEDERAL...
HORSE CREEK...CHEYENNE...PINE BLUFFS
237 PM MST THU NOV 17 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* TIMING...SNOW WILL CONTINUE INTO THIS EVENING THEN TAPER OFF.

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 4 INCHES WITH 6 TO 
  10 INCHES OVER THE MOUNTAINS. 

* WINDS/VISIBILITY...NORTH TO NORTHEAST AT 15 TO 25 MPH GUSTING
  20 TO 30 MPH. VISIBILITIES UNDER A HALF MILE AT TIMES. 

* IMPACTS...MOSTLY TO TRAVEL AS ROADS ARE EXPECTED TO BECOME 
  SLICK AND HAZARDOUS. THOSE PLANNING ON OUTDOOR RECREATION 
  TODAY...BE PREPARED FOR SNOW AND COLD TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
944 
WWUS45 KCYS 180252
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
752 PM MST THU NOV 17 2016

...WINTER WEATHER ADVISORY FOR SOUTHEAST WYOMING TO EXPIRE ON TIME
AT 8 PM THIS EVENING...

...WINTER WEATHER ADVISORY AND WINTER STORM WARNING REMAIN IN
EFFECT FOR THE NEBRASKA PANHANDLE TIL MIDNIGHT TONIGHT...

WYZ101>119-180400-
/O.EXP.KCYS.WW.Y.0029.000000T0000Z-161118T0300Z/
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...BILL...DOUGLAS...DEER CREEK...
GLENROCK...LUSK...REDBIRD...GARRETT...SEMINOE DAM...
MEDICINE BOW...SHIRLEY BASIN...BORDEAUX...WHEATLAND...GUERNSEY...
TORRINGTON...RAWLINS...ARLINGTON...ELK MOUNTAIN...BAGGS...
SARATOGA...ENCAMPMENT...CENTENNIAL...ALBANY...BOSLER...LARAMIE...
BUFORD...PUMPKIN VINE...VEDAUWOO...WHITAKER...FEDERAL...
HORSE CREEK...CHEYENNE...PINE BLUFFS
752 PM MST THU NOV 17 2016

...WINTER WEATHER ADVISORY WILL EXPIRE AT 8 PM MST THIS EVENING...

LATEST AREA OBSERVATIONS ARE SHOWING SNOW REALLY TAPERING OFF
ACROSS SOUTHEAST WYOMING THIS EVENING. LOW PRESSURE CONTINUES TO
MOVE OFF TO THE EAST INTO NEBRASKA...SO ACCUMULATING SNOW IS NO
LONGER EXPECTED. THE WINTER WEATHER ADVISORY WILL BE ALLOWED TO
EXPIRE ON TIME AT 8 PM THIS EVENING.

$$

NEZ002-095-180700-
/O.CON.KCYS.WS.W.0014.000000T0000Z-161118T0700Z/
DAWES-NORTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...CHADRON ST PARK...HARRISON
752 PM MST THU NOV 17 2016

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

* TIMING...SNOW WILL CONTINUE THROUGH THIS EVENING WITH PERIODS 
  OF MODERATE SNOWFALL POSSIBLE. 

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 5 INCHES ARE 
  POSSIBLE WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES ALONG 
  THE PINE RIDGE. 

* WINDS/VISIBILITY...NORTH WINDS OF 15 TO 25 MPH GUSTING TO 35 
  MPH COMBINED WITH FALLING SNOW WILL REDUCE VISIBILITIES TO 
  UNDER ONE HALF MILE AT TIMES. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED ESPECIALLY 
  AS TEMPERATURES COOL THROUGH THE DAY. SIGNIFICANTLY REDUCED 
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS. IF YOU MUST TRAVEL...
   PACK EXTRA FOOD...WATER...BLANKETS AND A FLASHLIGHT IN YOUR 
  VEHICLE IN CASE OF AN EMERGENCY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

NEZ003-019>021-096-180700-
/O.CON.KCYS.WW.Y.0029.000000T0000Z-161118T0700Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-SOUTH SIOUX-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...ANGORA...BRIDGEPORT...BAYARD...REDINGTON...AGATE
752 PM MST THU NOV 17 2016

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

* TIMING...SNOW IS EXPECTED TO BE WIDESPREAD BY LATE AFTERNOON 
  AND CONTINUE THIS EVENING. 

* TOTAL SNOW ACCUMULATIONS...WIDESPREAD 2 TO 4 INCHES ARE 
  POSSIBLE WITH HIGHER AMOUNTS IN UPSLOPE FAVORED LOCALES. 

* WINDS/VISIBILITY...NORTH TO NORTHWEST WINDS OF 15 TO 25 MPH 
  GUSTING 20 TO 30 MPH COMBINED WITH FALLING SNOW WILL REDUCE 
  VISIBILITIES TO LESS THAN ONE MILE. 

* IMPACTS...ROADS MAY BECOME SLICK AND SNOW COVERED. REDUCED 
  VISIBILITIES WILL MAKE DRIVING HAZARDOUS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
SNOW AND STRONG WINDS WILL CREATE RESTRICTED VISIBILITIES AND
DRIFTING SNOW ALONG AREA ROADWAYS. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS.

&&

$$
550 
WWUS45 KCYS 180519
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1019 PM MST THU NOV 17 2016

...WINTER STORM WARNING AND WINTER WEATHER ADVISORIES CANCELLED
FOR THE NEBRASKA PANHANDLE...

NEZ002-095-180630-
/O.CAN.KCYS.WS.W.0014.000000T0000Z-161118T0700Z/
DAWES-NORTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...CHADRON ST PARK...HARRISON
1019 PM MST THU NOV 17 2016

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
STORM WARNING. 

SNOW HAS DECREASED SIGNIFICANTLY ACROSS THE NEBRASKA PANHANDLE AS
THE ASSOCIATED LOW PRESSURE SYSTEM MOVES EAST INTO CENTRAL
NEBRASKA. SIGNIFICANT ACCUMULATING SNOW IS NO LONGER EXPECTED.
THEREFORE...THE WINTER STORM WARNING HAS BEEN CANCELLED EARLY.

$$

NEZ003-019>021-096-180630-
/O.CAN.KCYS.WW.Y.0029.000000T0000Z-161118T0700Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-SOUTH SIOUX-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...ANGORA...BRIDGEPORT...BAYARD...REDINGTON...AGATE
1019 PM MST THU NOV 17 2016

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

SNOW HAS DECREASED SIGNIFICANTLY ACROSS THE NEBRASKA PANHANDLE AS
THE ASSOCIATED LOW PRESSURE SYSTEM MOVES EAST INTO CENTRAL
NEBRASKA. SIGNIFICANT ACCUMULATING SNOW IS NO LONGER EXPECTED.
THEREFORE...THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED EARLY.

$$

What forecasters said that day

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

NWS Cheyenne, WY wrote its last area forecast discussion before this winter storm warning went out at Nov 16, 10:35 AM MST, 3 hours 58 minutes earlier.

Area forecast discussion, Nov 16, 10:35 AM MST, 3 hours 58 minutes before
Area Forecast Discussion
National Weather Service Cheyenne WY
1035 AM MST Wed Nov 16 2016

.SHORT TERM...(Today through Thursday night)
Issued at 526 AM MST Wed Nov 16 2016

Concerns for today remain the potential for strong winds and
critical fire weather conditions. Still thinking that the llvl
pressure gradient will not be favorable for gusts higher than
50-55 mph in the wind prone areas this morning...so held off on
issuing any wind highlights. Overnight humidity recoveries across
much of southeast Wyoming were very poor...with some spots over
and near the Laramie Range not getting out of the teens. In fact,
a few locations within FWZ 309 reached critical thresholds at
times overnight. With dry humidities expected to become more
widespread while wind gusts increase to 45 to 55 mph through the
morning, issued a Red Flag Warning for this zone. Concerned that
extreme southwest portions of FWZ 310 will hit for a couple hours
later this morning as well, but humidities and winds may not sync
for long enough to warrant inclusion in the Warning.

The cold front looks to drop south across the forecast area a bit
quicker than previous model runs suggested. The front may be through
the plains by late this afternoon, slowly creeping through the high
country through Wednesday night. Still thinking patchy fog,
stratus, and maybe even some drizzle will plague the southern
Laramie Range and eastern plains early THursday morning. The
front may stall across Carbon and Albany counties though until
midday Thursday as the sfc cyclone deepens across eastern Colorado
and develops an inverted trough across the high country.
Therefore, snow may not really develop across the mountains until
midmorning THursday when the strong upper trough moves across
Colorado and finally drags the sfc/midlevel front and moisture
across our CWA. Once that happens though, frontogenesis will
strengthen rapidly while llvl upslope flow and overall QG forcing
strengthens across the CWA. Models have increased the amount of
QPF across our zones, especially along the frontogenesis band
stretching northeast to southwest across the forecast area.
Bumped up snow totals accordingly, with widespread 2-4" still a
high likelihood. Have higher confidence that upslope favored
locales could see 6+" of snow, especially along the Pine Ridge.
With winds still expected to gust 25-35 mph or higher across the
plains, went ahead with a Winter Storm Watch from the southern
Laramie Range, up through the plains of southeast Wyoming, into
the northern Nebraska Panhandle for the combination of snow and
winds. This is valid Thursday morning through the evening.
Further west, either winds are not expected to be as strong, or
snow totals not as significant, so will let the next shift opt for
winter weather advisories if warranted. Warm antecedent conditions
could melt the initial batch of snow, but do think dynamic lift
and CAA should overcome the warm ground to allow for accumulation,
and even some drifting of snow across the Watch area. Snow will
steadily diminish Thursday night, with very cold temperatures
taking over.

.LONG TERM...(Friday through Tuesday)
Issued at 526 AM MST Wed Nov 16 2016

It will be a cold and blustery day across the region on Friday. With
snow on the ground, went slightly cooler than guidance, more in line
with CONSRaw.  Due to the progressive nature of the system, snow
will have ended by sunrise on Friday.  With breezy northwest winds
across the plains, wind chill values through the day will be in the
teens to low 20s.  Heights rise by Saturday with a shortwave ridge
moving overhead.  Temps will begin to moderate by Saturday, with
better warming by Sunday/Monday.  Not expecting any windy periods
over the weekend with the ridge axis mostly overhead.  Both the
GFS/ECMWF show a fropa around Tuesday morning along with more cloud
cover as a weak upper trough moves over the region.

&&

.AVIATION...(For the 18Z TAFS through 18Z Thursday morning)
Issued at 1135 AM MST Wed Nov 16 2016

VFR expected overall through about 10Z.  After that Conditions
should deteriorate to fairly widespread IFR as the morning
progresses Thursday with snow spreading over the area behind a cold
front that will move south across the area late tonight and
Thursday morning.

&&

.FIRE WEATHER...
Issued at 526 AM MST Wed Nov 16 2016

One more day of very warm, dry, and windy conditions will occur
over portions of southeast Wyoming today. Humidities across FWZ
309 will drop into the low teens, while winds look to gust 45 to
55 mph this morning through the afternoon. Issued a Red Flag
Warning for this area to account for these expected critical
conditions. Concerned that extreme southwest portions of FWZ 310
will hit for a couple hours later this morning as well, but
humidities and winds may not sync for long enough to warrant
inclusion in the Warning. A cold front will drop south across the
district this afternoon and evening, with cooler temperatures and
chances for snow expected across the region for the end of the
week.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Red Flag Warning until 5 PM MST this afternoon for WYZ309.

     Winter Storm Watch from Thursday morning through Thursday
     evening for WYZ101-102-106>108-116>119.

NE...Winter Storm Watch from Thursday morning through late Thursday
     night for NEZ002-003-019-095-096.

&&

SHORT TERM...RJM
LONG TERM...ZF
AVIATION...RE
FIRE WEATHER...RJM
Hazardous weather outlook, Nov 16, 4:49 AM MST, 9 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
449 AM MST WED NOV 16 2016

WYZ101>119-171200-
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
449 AM MST WED NOV 16 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

THE COMBINATION OF GUSTY WINDS AND VERY LOW HUMIDITY VALUES WILL
RESULT IN CRITICAL FIRE WEATHER CONDITIONS THROUGH THIS AFTERNOON
IN AREAS NEAR THE SOUTHERN LARAMIE RANGE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A STRONG STORM SYSTEM WILL BRING ACCUMULATING SNOW TO SOUTHEAST
WYOMING THURSDAY THROUGH THURSDAY EVENING. GUSTY NORTH TO
NORTHWEST WINDS WILL PRODUCE SOME BLOWING SNOW THROUGH THURSDAY
EVENING. MUCH COLDER TEMPERATURES WILL PERSIST THROUGH FRIDAY.
WINTER STORM WATCHES ARE IN EFFECT FOR AREAS ALONG AND EAST OF
THE LARAMIE RANGE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE REQUIRED.

NEZ002-003-019>021-054-055-095-096-171200-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
449 AM MST WED NOV 16 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN
NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A STORM SYSTEM WILL BRING ACCUMULATING SNOW TO THE WESTERN
NEBRASKA PANHANDLE THURSDAY AFTERNOON THROUGH EARLY THURSDAY NIGHT.
GUSTY NORTHWEST WINDS WILL PRODUCE SOME BLOWING SNOW THROUGH
THURSDAY NIGHT. MUCH COLDER TEMPERATURES WILL PERSIST THROUGH
FRIDAY.  WINTER STORM WATCHES HAVE BEEN ISSUED FOR MAINLY THE
NORTHERN NEBRASKA PANHANDLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE REQUIRED.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 16, 4:14 AM MSTWinter Storm WatchCYSBox Butte, Dawes, Scotts Bluff, Sioux10 hr
Nov 16, 2:33 PM MSTWinter Weather AdvisoryCYSBanner, Box Butte, Morrill, Scotts Bluff, Sioux32 hr

Nearby

Winter Storm Warnings in Nebraska, 2016Every winter storm warning in 2016

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.