Alert archive / Wyoming / Winter Storm Warnings in 2012

Winter Storm Warning 8, NWS Cheyenne, WY

October 5, 2012Albany County, Converse County, Platte County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at Oct 5, 2012, 9:21 AM MDT for Albany County, Converse County, Platte County, Wyoming. It took effect at Oct 6, 2012, 12:00 AM MDT. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 5, 2012, 9:21 AM MDT (15:21 UTC)
In effect from
Oct 6, 2012, 12:00 AM MDT
Expired
Oct 6, 2012, 4:30 AM MDT
In force
5 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Converse County, WY, Platte County, WY

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 3.4 hours before the alert went out and 262 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, Riverton, WY at 12:00Z on 2012-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2012-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -86 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
664 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-86 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

564 
WWUS45 KCYS 051521
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
921 AM MDT FRI OCT 5 2012

...WINTER STORM WARNING FOR THE NORTHERN LARAMIE RANGE TONIGHT AND
SATURDAY... 
...SNOW ADVISORY FOR AREAS ALONG AND EAST OF THE LARAMIE RANGE AND
INTO THE NEBRASKA PANHANDLE TONIGHT THROUGH SATURDAY...

.SNOW THIS MORNING WILL SLOWLY TAPER OFF ACROSS THE NORTHERN
NEBRASKA PANHANDLE THIS MORNING AS TEMPERATURES WARM. MOST OF THE
SNOW THAT FELL THIS MORNING WILL MELT AS A RESULT. A STRONGER
UPPER LEVEL STORM SYSTEM IS THEN SET TO MOVE INTO SOUTHEAST
WYOMING AND NEBRASKA PANHANDLE LATER TONIGHT AND PERSIST THROUGH
SATURDAY EARLY AFTERNOON. THE HEAVIEST SNOW AMOUNTS ARE EXPECTED
OVER AND ALONG THE EASTERN SLOPES OF THE LARAMIE RANGE. THE SNOW
WILL TAPER OFF SATURDAY AFTERNOON.

WYZ103-060330-
/O.UPG.KCYS.WS.A.0005.121006T0000Z-121006T2100Z/
/O.NEW.KCYS.WS.W.0008.121006T0600Z-121006T2100Z/
NORTH LARAMIE RANGE-
921 AM MDT FRI OCT 5 2012

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM
MDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT
TONIGHT TO 3 PM MDT SATURDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING...MIDNIGHT TONIGHT THROUGH 3 PM SATURDAY AFTERNOON. THE
  HEAVIEST SNOW WILL FALL FROM MIDNIGHT THROUGH SATURDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...10 TO 12 INCHES WITH NORTH AND
  NORTHWEST FACING SLOPES SEEING 14 TO 16 INCHES.

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  A QUARTER MILE AT TIMES...ESPECIALLY LATE TONIGHT THROUGH 
  SATURDAY MORNING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ALONG INTERSTATES 80 AND 
  25 AND OTHER HIGHWAYS ARE EXPECTED DUE TO LOW VISIBILITIES AND 
  SNOW COVERED ROADS. OUTDOOR ACTIVITIES WILL BE HAMPERED DUE TO 
  THE SNOW AND COLD TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

NEZ002-003-095-096-WYZ102-060330-
/O.NEW.KCYS.WW.Y.0012.121006T0600Z-121006T2100Z/
/O.CON.KCYS.WW.Y.0011.000000T0000Z-121005T2100Z/
DAWES-BOX BUTTE-NORTH SIOUX-SOUTH SIOUX-NIOBRARA COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...HARRISON...AGATE...
LUSK
921 AM MDT FRI OCT 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
3 PM MDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM MIDNIGHT
TONIGHT TO 3 PM MDT SATURDAY. A WINTER WEATHER ADVISORY REMAINS IN
EFFECT UNTIL 3 PM MDT THIS AFTERNOON.

* TIMING...PERIODS OF LIGHT TO MODERATE SNOW WILL FALL THROUGH
  THIS MORNING. THE SNOW WILL TAPER OFF THIS AFTERNOON. THEN AFTER
  MIDNIGHT TONIGHT ANOTHER ROUND OF MODERATE SNOW WILL DEVELOP AND
  CONTINUE THROUGH SATURDAY EARLY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...FOR TODAY 2 TO 4 INCHES WITH LOCALLY
  HIGHER AMOUNTS. MUCH OF THIS SNOW WILL MELT THIS AFTERNOON. FOR
  TONIGHT ANOTHER 3 TO 5 INCHES ARE LIKELY THROUGH EARLY SATURDAY
  AFTERNOON. 

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO A MILE OR 
  LESS THIS MORNING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO SNOW 
  COVERED ROADS AND LOW VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ101-106-107-116>118-060330-
/O.UPG.KCYS.WS.A.0005.121006T0000Z-121006T2100Z/
/O.NEW.KCYS.WW.Y.0012.121006T0600Z-121006T2100Z/
CONVERSE COUNTY LOWER ELEVATIONS-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...BORDEAUX...
GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...VEDAUWOO...BUFORD...
PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE
921 AM MDT FRI OCT 5 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
3 PM MDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM MIDNIGHT
TONIGHT TO 3 PM MDT SATURDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING...THIS EVENING THROUGH SATURDAY AFTERNOON. MODERATE SNOW
  IS EXPECTED TO BEGIN OVER PLATTE AND GOSHEN COUNTIES AFTER
  MIDNIGHT SPREADING SOUTH TO CHEYENNE AND THE SOUTHERN PANHANDLE
  TOWARDS SUNRISE SATURDAY.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES CAN BE EXPECTED ALONG
  THE EAST SLOPES OF THE LARAMIE RANGE...INCLUDING CHEYENNE. 8 TO
  10 INCHES CAN BE EXPECTED OVER THE LARAMIE RANGE...INCLUDING THE
  INTERSTATE 80 SUMMIT BETWEEN CHEYENNE AND LARAMIE.

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  A QUARTER MILE AT TIMES...ESPECIALLY LATE TONIGHT THROUGH 
  SATURDAY MORNING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ALONG INTERSTATES 80 AND 
  25 AND OTHER HIGHWAYS ARE EXPECTED DUE TO LOW VISIBILITIES AND 
  SNOW COVERED ROADS. OUTDOOR ACTIVITIES WILL BE HAMPERED DUE TO 
  THE SNOW AND COLD TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN APPROACHING
AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ019>021-054-055-WYZ108-119-060330-
/O.NEW.KCYS.WW.Y.0012.121006T0600Z-121006T2100Z/
SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-GOSHEN COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...SCOTTSBLUFF...GERING...HARRISBURG...
BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...TORRINGTON...BURNS...
CARPENTER...ALBIN...PINE BLUFFS
921 AM MDT FRI OCT 5 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
3 PM MDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM MIDNIGHT
TONIGHT TO 3 PM MDT SATURDAY.

* TIMING...SNOW IS EXPECTED TO BEGIN TOWARDS MIDNIGHT TONIGHT AND
  BECOME WIDESPREAD AND HEAVIER AFTER 3 AM SATURDAY
  MORNING...PERSISTING THROUGH EARLY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES CAN BE EXPECTED WITH
  THE HEAVIEST SNOW FALLING FROM SUNRISE THROUGH NOON SATURDAY.

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO LESS THAN A
  QUARTER MILE AT TIMES...ESPECIALLY FROM SUNRISE THROUGH NOON
  SATURDAY. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ALONG INTERSTATES 80 AND OTHER
  HIGHWAYS ARE EXPECTED DUE TO LOW VISIBILITIES AND SNOW COVERED
  ROADS. OUTDOOR ACTIVITIES WILL BE HAMPERED DUE TO THE SNOW AND
  COLD TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN APPROACHING
AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
4 follow-up statements
331 
WWUS45 KCYS 051732
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1132 AM MDT FRI OCT 5 2012

...WINTER STORM WARNING FOR THE NORTHERN LARAMIE RANGE TONIGHT
THROUGH SATURDAY...

...SNOW ADVISORY FOR AREAS ALONG AND EAST OF THE LARAMIE RANGE
AND INTO THE NEBRASKA PANHANDLE TONIGHT THROUGH SATURDAY...

.SNOW THIS MORNING WILL SLOWLY TAPER OFF ACROSS THE NORTHERN
NEBRASKA PANHANDLE THIS MORNING AS TEMPERATURES WARM. MOST OF THE
SNOW THAT FELL THIS MORNING WILL MELT AS A RESULT. A STRONGER
UPPER LEVEL STORM SYSTEM IS THEN SET TO MOVE INTO SOUTHEAST
WYOMING AND NEBRASKA PANHANDLE LATER TONIGHT AND PERSIST THROUGH
SATURDAY EARLY AFTERNOON. THE HEAVIEST SNOW AMOUNTS ARE EXPECTED
OVER AND ALONG THE EASTERN SLOPES OF THE LARAMIE RANGE. THE SNOW
WILL TAPER OFF SATURDAY AFTERNOON.

WYZ103-060545-
/O.CON.KCYS.WS.W.0008.121006T0600Z-121006T2100Z/
NORTH LARAMIE RANGE-
1132 AM MDT FRI OCT 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 3 PM MDT SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
3 PM MDT SATURDAY. 

* TIMING...MIDNIGHT TONIGHT THROUGH 3 PM SATURDAY AFTERNOON. THE 
  HEAVIEST SNOW WILL FALL FROM MIDNIGHT THROUGH SATURDAY 
  MORNING. 

* TOTAL SNOW ACCUMULATIONS...10 TO 12 INCHES WITH NORTH AND 
  NORTHWEST FACING SLOPES SEEING 14 TO 16 INCHES. 

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  A QUARTER MILE AT TIMES...ESPECIALLY LATE TONIGHT THROUGH 
  SATURDAY MORNING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS FOR TRAVELERS AND CAMPERS
  IN THE MEDICINE BOW NATIONAL FOREST ARE EXPECTED DUE TO LOW
  VISIBILITIES AND SNOW COVERED ROADS. OUTDOOR ACTIVITIES WILL BE
  HAMPERED DUE TO THE SNOW AND COLD TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

NEZ002-003-095-096-WYZ102-060545-
/O.CON.KCYS.WW.Y.0011.000000T0000Z-121005T2100Z/
/O.CON.KCYS.WW.Y.0012.121006T0600Z-121006T2100Z/
DAWES-BOX BUTTE-NORTH SIOUX-SOUTH SIOUX-NIOBRARA COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...HARRISON...AGATE...
LUSK
1132 AM MDT FRI OCT 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 3 PM MDT SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON. A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM
MIDNIGHT TONIGHT TO 3 PM MDT SATURDAY. 

* TIMING...PERIODS OF LIGHT TO MODERATE SNOW WILL FALL THROUGH 
  THIS MORNING. THE SNOW WILL TAPER OFF THIS AFTERNOON. THEN 
  AFTER MIDNIGHT TONIGHT ANOTHER ROUND OF MODERATE SNOW WILL 
  DEVELOP AND CONTINUE THROUGH SATURDAY EARLY AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...FOR TODAY 2 TO 4 INCHES WITH 
  LOCALLY HIGHER AMOUNTS. MUCH OF THIS SNOW WILL MELT THIS 
  AFTERNOON. FOR TONIGHT ANOTHER 3 TO 5 INCHES ARE LIKELY 
  THROUGH EARLY SATURDAY AFTERNOON. 

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO A MILE OR 
  LESS THIS MORNING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO SNOW 
  COVERED ROADS AND LOW VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ019>021-054-055-WYZ101-106>108-116>119-060545-
/O.CON.KCYS.WW.Y.0012.121006T0600Z-121006T2100Z/
SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
CONVERSE COUNTY LOWER ELEVATIONS-
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...SCOTTSBLUFF...GERING...HARRISBURG...
BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...DOUGLAS...GLENROCK...
BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...
TORRINGTON...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
1132 AM MDT FRI OCT 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 3 PM MDT SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 3 PM MDT SATURDAY. 

* TIMING...SNOW IS EXPECTED TO BEGIN TOWARDS MIDNIGHT TONIGHT AND
  BECOME WIDESPREAD AND HEAVIER AFTER 3 AM SATURDAY MORNING...PERSISTING
  THROUGH EARLY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES CAN BE EXPECTED WITH 
  THE HEAVIEST SNOW FALLING FROM SUNRISE THROUGH NOON SATURDAY. 

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  A QUARTER MILE AT TIMES...ESPECIALLY FROM SUNRISE THROUGH NOON 
  SATURDAY. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ALONG INTERSTATES 80 AND 
  OTHER HIGHWAYS ARE EXPECTED DUE TO LOW VISIBILITIES AND SNOW 
  COVERED ROADS. OUTDOOR ACTIVITIES WILL BE HAMPERED DUE TO THE 
  SNOW AND COLD TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
340 
WWUS45 KCYS 051909
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
109 PM MDT FRI OCT 5 2012

...WINTER STORM WARNING FOR THE NORTHERN LARAMIE RANGE TONIGHT
THROUGH SATURDAY...

...SNOW ADVISORY FOR AREAS ALONG AND EAST OF THE LARAMIE RANGE
AND INTO THE NEBRASKA PANHANDLE TONIGHT THROUGH SATURDAY...

.ACCUMULATING SNOW HAS COME TO AN END OVER THE NORTHERN PANHANDLE
AND NIOBRARA COUNTY EARLY THIS AFTERNOON. LIGHT SNOW WILL CONTINUE
TO FALL...BUT ACCUMULATIONS WILL BE MINIMAL. THEREFORE...CANCELLED
THE ADVISORY FOR THE REMAINDER OF THIS AFTERNOON. A STRONGER
UPPER LEVEL STORM SYSTEM IS THEN SET TO MOVE INTO SOUTHEAST
WYOMING AND NEBRASKA PANHANDLE LATER TONIGHT AND PERSIST THROUGH
SATURDAY EARLY AFTERNOON. THE HEAVIEST SNOW AMOUNTS ARE EXPECTED
OVER AND ALONG THE EASTERN SLOPES OF THE LARAMIE RANGE. THE SNOW
WILL TAPER OFF SATURDAY AFTERNOON.

NEZ002-003-095-096-WYZ102-061200-
/O.CAN.KCYS.WW.Y.0011.000000T0000Z-121005T2100Z/
/O.CON.KCYS.WW.Y.0012.121006T0600Z-121006T2100Z/
DAWES-BOX BUTTE-NORTH SIOUX-SOUTH SIOUX-NIOBRARA COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...HARRISON...AGATE...
LUSK
109 PM MDT FRI OCT 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 3 PM MDT SATURDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
WEATHER ADVISORY FOR THIS AFTERNOON. A WINTER WEATHER ADVISORY
REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT SATURDAY.

* TIMING...AFTER MIDNIGHT TONIGHT ANOTHER ROUND OF MODERATE SNOW
  WILL DEVELOP AND CONTINUE THROUGH SATURDAY EARLY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...ANOTHER 3 TO 5 INCHES ARE LIKELY
  THROUGH EARLY SATURDAY AFTERNOON.

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO A MILE OR 
  LESS THIS MORNING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO SNOW 
  COVERED ROADS AND LOW VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN APPROACHING
AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ103-061200-
/O.CON.KCYS.WS.W.0008.121006T0600Z-121006T2100Z/
NORTH LARAMIE RANGE-
109 PM MDT FRI OCT 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 3 PM MDT SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
3 PM MDT SATURDAY. 

* TIMING...MIDNIGHT TONIGHT THROUGH 3 PM SATURDAY AFTERNOON. THE 
  HEAVIEST SNOW WILL FALL FROM MIDNIGHT THROUGH SATURDAY 
  MORNING. 

* TOTAL SNOW ACCUMULATIONS...10 TO 12 INCHES WITH NORTH AND 
  NORTHWEST FACING SLOPES SEEING 14 TO 16 INCHES. 

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  A QUARTER MILE AT TIMES...ESPECIALLY LATE TONIGHT THROUGH 
  SATURDAY MORNING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS FOR TRAVELERS AND 
  CAMPERS IN THE MEDICINE BOW NATIONAL FOREST ARE EXPECTED DUE 
  TO LOW VISIBILITIES AND SNOW COVERED ROADS. OUTDOOR ACTIVITIES 
  WILL BE HAMPERED DUE TO THE SNOW AND COLD TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

NEZ019>021-054-055-WYZ101-106>108-116>119-061200-
/O.CON.KCYS.WW.Y.0012.121006T0600Z-121006T2100Z/
SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
CONVERSE COUNTY LOWER ELEVATIONS-
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...SCOTTSBLUFF...GERING...HARRISBURG...
BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...DOUGLAS...GLENROCK...
BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...
TORRINGTON...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
109 PM MDT FRI OCT 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 3 PM MDT SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 3 PM MDT SATURDAY. 

* TIMING...SNOW IS EXPECTED TO BEGIN TOWARDS MIDNIGHT TONIGHT AND
  BECOME WIDESPREAD AND HEAVIER AFTER 3 AM SATURDAY MORNING...PERSISTING
  THROUGH EARLY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES CAN BE EXPECTED WITH 
  THE HEAVIEST SNOW FALLING FROM SUNRISE THROUGH NOON SATURDAY. 

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  A QUARTER MILE AT TIMES...ESPECIALLY FROM SUNRISE THROUGH NOON 
  SATURDAY. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ALONG INTERSTATES 80 AND 
  OTHER HIGHWAYS ARE EXPECTED DUE TO LOW VISIBILITIES AND SNOW 
  COVERED ROADS. OUTDOOR ACTIVITIES WILL BE HAMPERED DUE TO THE 
  SNOW AND COLD TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
463 
WWUS45 KCYS 060220
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
820 PM MDT FRI OCT 5 2012

...WINTER STORM WARNING FOR THE NORTHERN LARAMIE RANGE THROUGH
SATURDAY...

...SNOW ADVISORY FOR AREAS ALONG AND EAST OF THE LARAMIE RANGE
AND INTO THE NEBRASKA PANHANDLE THROUGH SATURDAY...

.A STRONG UPPER LEVEL STORM SYSTEM WILL MOVE INTO SOUTHEAST
WYOMING AND NEBRASKA PANHANDLE LATER TONIGHT AND PERSIST THROUGH
SATURDAY EARLY AFTERNOON. THE HEAVIEST SNOW AMOUNTS ARE EXPECTED
OVER AND ALONG THE EASTERN SLOPES OF THE LARAMIE RANGE. THE SNOW
WILL TAPER OFF SATURDAY AFTERNOON.

WYZ103-061200-
/O.CON.KCYS.WS.W.0008.121006T0600Z-121006T2100Z/
NORTH LARAMIE RANGE-
820 PM MDT FRI OCT 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 3 PM MDT SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
3 PM MDT SATURDAY. 

* TIMING...MIDNIGHT TONIGHT THROUGH 3 PM SATURDAY AFTERNOON. THE 
  HEAVIEST SNOW WILL FALL FROM MIDNIGHT THROUGH SATURDAY 
  MORNING. 

* TOTAL SNOW ACCUMULATIONS...10 TO 12 INCHES WITH NORTH AND 
  NORTHWEST FACING SLOPES SEEING 14 TO 16 INCHES. 

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  A QUARTER MILE AT TIMES...ESPECIALLY LATE TONIGHT THROUGH 
  SATURDAY MORNING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS FOR TRAVELERS AND 
  CAMPERS IN THE MEDICINE BOW NATIONAL FOREST ARE EXPECTED DUE 
  TO LOW VISIBILITIES AND SNOW COVERED ROADS. OUTDOOR ACTIVITIES 
  WILL BE HAMPERED DUE TO THE SNOW AND COLD TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

NEZ002-003-019>021-054-055-095-096-WYZ101-102-106>108-116>119-
061200-
/O.CON.KCYS.WW.Y.0012.121006T0600Z-121006T2100Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-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...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK...BORDEAUX...
GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS
820 PM MDT FRI OCT 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 3 PM MDT SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 3 PM MDT SATURDAY. 

* TIMING...AFTER MIDNIGHT TONIGHT ANOTHER ROUND OF MODERATE SNOW 
  WILL DEVELOP AND CONTINUE THROUGH SATURDAY EARLY AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...ANOTHER 3 TO 5 INCHES ARE LIKELY 
  THROUGH EARLY SATURDAY AFTERNOON. 

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO A MILE OR
  LESS.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO SNOW 
  COVERED ROADS AND LOW VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

RUBIN
041 
WWUS45 KCYS 061030
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
430 AM MDT SAT OCT 6 2012

...WINTER WEATHER ADVISORY FOR AREAS ALONG AND EAST OF THE LARAMIE
RANGE AND INTO THE NEBRASKA PANHANDLE THROUGH THIS AFTERNOON...

.A STRONG UPPER LEVEL STORM SYSTEM MOVING ACROSS SOUTHEAST WYOMING
AND NEBRASKA PANHANDLE TODAY WILL CONTINUE TO BRING SNOW TO MUCH
OF THE FORECAST AREA. THE HEAVIEST SNOW AMOUNTS ARE EXPECTED OVER
THE LARAMIE RANGE...AND EASTWARD ACROSS THE PLAINS OF SOUTHEAST
WYOMING AND WESTERN NEBRASKA PANHANDLE. THE SNOW WILL TAPER OFF
THIS AFTERNOON. AREAS OF FOG AND FREEZING FOG THAT DEVELOPED
OVERNIGHT AT THE SUMMIT AND NEARBY FOOTHILLS PRODUCED VERY SLICK
ROADS THAT WILL COMBINE WITH SNOWFALL TO INCREASE THE HAZARDS OF
TRAVEL IN THIS AREA TODAY.

WYZ103-062100-
/O.CAN.KCYS.WS.W.0008.000000T0000Z-121006T2100Z/
/O.EXA.KCYS.WW.Y.0012.000000T0000Z-121006T2100Z/
NORTH LARAMIE RANGE-
430 AM MDT SAT OCT 6 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH EARLY THIS
  AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...6 TO 10 INCHES WITH LOCALLY HIGHER
  AMOUNTS ARE EXPECTED THROUGH EARLY THIS AFTERNOON.

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO ONE HALF MILE
  OR LESS IN MODERATE SNOWFALL.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO SNOW
  COVERED ROADS AND LOW VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN APPROACHING
AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ002-003-019>021-054-055-095-096-WYZ101-102-106>108-116>119-
062100-
/O.CON.KCYS.WW.Y.0012.000000T0000Z-121006T2100Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-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...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK...BORDEAUX...
GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS
430 AM MDT SAT OCT 6 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON. 

* TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH EARLY THIS
  AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES ARE LIKELY THROUGH
  EARLY THIS AFTERNOON...WITH SLIGHTLY HIGHER AMOUNTS EXPECTED IN
  THE SOUTHERN LARAMIE RANGE.

* WINDS/VISIBILITIES...VISIBILITIES WILL BE REDUCED TO ONE HALF
  MILE OR LESS IN MODERATE SNOW.

* IMPACTS...AREAS OF FOG AND FREEZING FOG DEVELOPED OVERNIGHT
  ALONG INTERSTATE 80 AND HIGHWAY 30 BETWEEN CHEYENNE AND LARAMIE
  AT THE SUMMIT...CAUSING VERY SLICK ROAD CONDITIONS. SNOW ON TOP
  OF THESE SLICK ROADS WILL CREATE VERY HAZARDOUS TRAVEL
  CONDITIONS THIS MORNING. IN ADDITION...LOW VISIBILITIES DUE TO
  MODERATE SNOW WILL ENHANCE THE HAZARDOUS TRAVEL CONDITIONS
  THROUGH THE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

RJM

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 5, 9:21 AM MDTWinter Weather AdvisoryCYSAlbany, Converse, Goshen, Laramie, Niobrara, Platte26 hr

Nearby

Winter Storm Warnings in Wyoming, 2012Every winter storm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.