Alert archive / Wyoming / High Wind Warnings in 2017

High Wind Warning 38, NWS Cheyenne, WY

December 2, 20174 counties in Wyoming

NWS Cheyenne, WY issued this high wind warning at Dec 2, 2017, 12:58 PM MST for 4 counties in Wyoming. It took effect at Dec 3, 2017, 5:00 AM MST. It was in force for 5 hr. 4 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
Dec 2, 2017, 12:58 PM MST (19:58 UTC)
In effect from
Dec 3, 2017, 5:00 AM MST
Expired
Dec 3, 2017, 9:48 AM MST
In force
5 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY, Laramie County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 19:57 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
Dec 3, 5:15 AM MSTHIGH SUST WINDS 427 Ese Arlington, WYSUSTAINED 40-42 MPH FOR PAST HOUR.
Dec 3, 6:42 AM MSTNON-TSTM WND GST 587 Ese Arlington, WYCOOPER COVE WYDOT SITE. SUSTAINED 42 MPH.
Dec 3, 8:30 AM MSTNON-TSTM WND GST 54W Rock River, WYROCK RIVER UPR SITE. SUSTAINED WINDS 38 MPH.
Dec 3, 8:45 AM MSTNON-TSTM WND GST 577 Ese Arlington, WYCOOPER COVE WYDOT SITE. SUSTAINED 39 MPH.

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

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 8.0 hours before the alert went out and 278 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 2017-12-02Temperature 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 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 2017-12-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2034 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

452 
WWUS75 KCYS 021958
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1258 PM MST Sat Dec 2 2017

...High Wind Warning Tonight Through Sunday Morning For Arlington
and Bordeaux...

...High Wind Watch Sunday Night Through Monday Afternoon For Areas
East of Laramie Range...

WYZ106-031200-
/O.NEW.KCYS.HW.W.0038.171203T0600Z-171203T1800Z/
/O.NEW.KCYS.HW.A.0031.171204T0600Z-171204T2100Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
1258 PM MST Sat Dec 2 2017

...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST SUNDAY...
...HIGH WIND WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY
AFTERNOON...

The National Weather Service in Cheyenne has issued a High Wind
Warning, which is in effect from 11 PM this evening to 11 AM MST
Sunday. A High Wind Watch has also been issued. This High Wind
Watch is in effect from Sunday evening through Monday afternoon. 

* TIMING...Strong winds expected late tonight through Sunday
  morning. After a brief lull Sunday afternoon, strong winds are
  again possible Sunday night through Monday afternoon behind a
  strong cold front that will move through the area.

* WINDS...West to southwesterly winds 35 to 45 mph sustained with
  gusts to 65 MPH likely tonight. Stronger west to northwest winds
  Sunday night into Monday afternoon could gust as high as 75 mph. 

* IMPACTS...Definite impacts to transportation on Interstate 25 
  near Bordeaux. High risk of blowoff or blowovers for light 
  weight and high profile vehicles...especially empty or light 
  loaded semis and those towing camper trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

WYZ110-031200-
/O.NEW.KCYS.HW.W.0038.171203T0600Z-171203T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
1258 PM MST Sat Dec 2 2017

...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST SUNDAY...

The National Weather Service in Cheyenne has issued a High Wind
Warning, which is in effect from 11 PM this evening to 11 AM MST
Sunday. 

* TIMING...Strong winds expected late tonight through Sunday
  morning. After a brief lull Sunday afternoon, strong winds are
  again possible Sunday night through Monday afternoon behind a
  strong cold front that will move through the area.

* WINDS...West to southwesterly winds 35 to 45 mph sustained with
  gusts to 65 MPH likely tonight. Stronger west to northwest winds
  Sunday night into Monday afternoon could gust as high as 75 mph.

* IMPACTS...Definite impacts to transportation on Interstate 80
  near Arlington. High risk of blowoff or blowovers for light 
  weight and high profile vehicles...especially empty or light 
  loaded semis and those towing camper trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ107-108-118-119-031200-
/O.NEW.KCYS.HW.A.0031.171204T0600Z-171204T2100Z/
East Platte County-Goshen County-Central Laramie County-
East Laramie County-
Including the cities of Wheatland, Guernsey, Torrington, 
Cheyenne, and Pine Bluffs
1258 PM MST Sat Dec 2 2017

...HIGH WIND WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY
AFTERNOON...

The National Weather Service in Cheyenne has issued a High Wind
Watch, which is in effect from Sunday evening through Monday
afternoon. 

* TIMING...Late Sunday night through Monday afternoon.

* WINDS...North to northwest winds 40 up 45 mph sustained with
  gusts to 65 mph are possible. Strongest winds are expected to
  occur after sunrise Monday.
  
* IMPACTS...Possible impacts to transportation on east to west
  oriented roads. High risk of blowoff or blowovers for light 
  weight and high profile vehicles...especially empty or light 
  loaded semis and those towing camper trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$
3 follow-up statements
659 
WWUS75 KCYS 030452
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
952 PM MST Sat Dec 2 2017

...High Wind Warning Sunday Morning For Arlington and Bordeaux...

...High Wind Watch Sunday Night Through Monday Afternoon For
Areas East of Laramie Range...

WYZ106-031800-
/O.EXT.KCYS.HW.W.0038.171203T1200Z-171203T1800Z/
/O.CON.KCYS.HW.A.0031.171204T0600Z-171204T2100Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
952 PM MST Sat Dec 2 2017

...HIGH WIND WARNING NOW IN EFFECT FROM 5 AM TO 11 AM MST
SUNDAY...
...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH
MONDAY AFTERNOON...

* TIMING...Strong winds are expected to develop after sunrise on
  Sunday, and continue through late Sunday morning. 

* WINDS...West to southwest 35 to 45 MPH with gusts to 60 MPH.
  Stronger north to northwest winds of 40 to 50 MPH with gusts up
  to 75 MPH are possible on Sunday night and early Monday. 

* IMPACTS...Mainly to transportation. Dangerous travel for light
  weight and high profile vehicles. There will be a high risk for
  vehicle blow offs and blow overs along Interstate 25 between
  Chugwater and Wheatland, and south to the Colorado state line on
  Sunday night and early Monday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

WYZ110-031800-
/O.EXT.KCYS.HW.W.0038.171203T1200Z-171203T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
952 PM MST Sat Dec 2 2017

...HIGH WIND WARNING NOW IN EFFECT FROM 5 AM TO 11 AM MST
SUNDAY...

* TIMING...Winds are expected to increase late tonight and become
  strong after sunrise on Sunday. High winds will continue through
  late Sunday morning, before increasing again on Sunday night.

* WINDS...West to southwest 35 to 45 MPH with gusts to 60 MPH.
  Stronger north to northwest winds of 40 to 50 MPH with gusts up
  to 75 MPH are possible on Sunday night and early Monday. 

* IMPACTS...Mainly to transportation. Dangerous travel for light
  weight and high profile vehicles. There will be a high risk for
  vehicle blow offs and blow overs near Arlington along Interstate
  80 between Laramie and Rawlins. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ107-108-118-119-031800-
/O.CON.KCYS.HW.A.0031.171204T0600Z-171204T2100Z/
East Platte County-Goshen County-Central Laramie County-
East Laramie County-
Including the cities of Wheatland, Guernsey, Torrington, 
Cheyenne, and Pine Bluffs
952 PM MST Sat Dec 2 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH
MONDAY AFTERNOON...

* TIMING...Late Sunday night through Monday afternoon.

* WINDS...North to northwest 40 to 45 MPH with gusts up to 65 MPH.
  The strongest winds are expected after sunrise Monday.

* IMPACTS...Mainly to transportation. Dangerous travel for light
  weight and high profile vehicles. There will be a high risk for
  vehicle blow offs and blow overs along Interstate 25 south of
  Wheatland, and along Highway 85 south of Torrington to the
  Colorado state line. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$
274 
WWUS75 KCYS 030930
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
230 AM MST Sun Dec 3 2017

...High Wind Warnings In Effect This Morning For Arlington, Bordeaux,
Laramie and Interstate 80 Summit...

...High Wind Watches In Effect Tonight Through Monday Afternoon East
of the Laramie Range...

WYZ115-116-031800-
/O.EXA.KCYS.HW.W.0038.171203T1200Z-171203T1800Z/
Laramie Valley-South Laramie Range-
Including the cities of Bosler, Laramie, Buford, Pumpkin Vine, 
and Vedauwoo
230 AM MST Sun Dec 3 2017

...HIGH WIND WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING...

The National Weather Service in Cheyenne has issued a High Wind
Warning, which is in effect until 11 AM MST this morning. 

* TIMING...Strong winds are expected to develop after sunrise and
  continue through late this morning. 

* WINDS...West to southwest 35 to 45 mph with gusts to 60 mph.

* IMPACTS...Mainly to transportation. Dangerous travel for light
  weight and high profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ106-032300-
/O.CON.KCYS.HW.W.0038.171203T1200Z-171203T1800Z/
/O.CON.KCYS.HW.A.0031.171204T0600Z-171204T2100Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
230 AM MST Sun Dec 3 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING...
...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH MONDAY
AFTERNOON...

* TIMING...Strong winds will develop after sunrise and continue
  through late this morning. 

* WINDS...West to southwest 35 to 45 mph with gusts to 60 mph.
  Stronger north to northwest winds of 40 to 50 mph with gusts up
  to 70 MPH will be possible tonight and Monday morning. 

* IMPACTS...Mainly to transportation. Dangerous travel for light
  weight and high profile vehicles. There will be a high risk for
  vehicle blow offs and blow overs along Interstate 25 between
  Chugwater and Wheatland, and south to the Colorado state line
  tonight and Monday morning. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

WYZ110-031800-
/O.CON.KCYS.HW.W.0038.171203T1200Z-171203T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
230 AM MST Sun Dec 3 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING...

* TIMING...Winds will become strong after sunrise and continue
  through late this morning. 

* WINDS...West to southwest 35 to 45 mph with gusts to 65 mph. 

* IMPACTS...Mainly to transportation. Dangerous travel for light
  weight and high profile vehicles. There will be a high risk for
  vehicle blow offs and blow overs along Interstate 80 between
  Laramie and Rawlins.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

NEZ002-003-019>021-054-055-095-096-032300-
/O.EXB.KCYS.HW.A.0031.171204T1200Z-171204T2100Z/
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
230 AM MST Sun Dec 3 2017

...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
AFTERNOON...

The National Weather Service in Cheyenne has issued a High Wind
Watch, which is in effect from late tonight through Monday
afternoon. 

* TIMING...Strong winds are expected to develop after sunrise
  Monday and continue through Monday afternoon. 

* WINDS...Northwest winds 30 to 40 mph with gusts up 60 mph
  possible.

* IMPACTS...Mainly to transportation. Dangerous travel for light
  weight and high profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous 
high wind event. Sustained winds of at least 40 mph...or gusts of 
58 mph or stronger may occur. Continue to monitor the latest 
forecasts.

&&

$$

WYZ107-108-118-119-032300-
/O.CON.KCYS.HW.A.0031.171204T0600Z-171204T2100Z/
East Platte County-Goshen County-Central Laramie County-
East Laramie County-
Including the cities of Wheatland, Guernsey, Torrington, 
Cheyenne, and Pine Bluffs
230 AM MST Sun Dec 3 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

* TIMING...Winds will become strong late tonight and continue through
  Monday afternoon.

* WINDS...Northwest winds 30 to 40 mph with gusts up to 60 mph 
  possible.

* IMPACTS...Mainly to transportation. Dangerous travel for light
  weight and high profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$
160 
WWUS75 KCYS 031648
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
948 AM MST Sun Dec 3 2017

...High Wind Warnings Cancelled This Morning For Arlington, 
Bordeaux, Laramie and Interstate 80 Summit...

...High Wind Watches In Effect Tonight Through Monday Afternoon
East of the Laramie Range...

WYZ106-040145-
/O.CAN.KCYS.HW.W.0038.000000T0000Z-171203T1800Z/
/O.CON.KCYS.HW.A.0031.171204T0600Z-171204T2100Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
948 AM MST Sun Dec 3 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...
...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Cheyenne has cancelled the High
Wind Warning. 

* TIMING...Strong winds will develop tonight and continue through
  Monday mid afternoon. 

* WINDS...North to northwest winds of 40 to 50 mph with gusts up 
  to 70 MPH will be possible tonight and Monday morning.
 
* IMPACTS...Mainly to transportation. Dangerous travel for light
  weight and high profile vehicles. There will be a high risk for
  vehicle blow offs and blow overs along Interstate 25 between
  Chugwater and Wheatland, and south to the Colorado state line
  tonight through Monday morning. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

WYZ110-115-116-031800-
/O.CAN.KCYS.HW.W.0038.000000T0000Z-171203T1800Z/
North Snowy Range Foothills-Laramie Valley-South Laramie Range-
Including the cities of Arlington, Elk Mountain, Bosler, Laramie,
Buford, Pumpkin Vine, and Vedauwoo
948 AM MST Sun Dec 3 2017

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Cheyenne has cancelled the High
Wind Warning. 

Winds will ease temporarily this afternoon before picking up again
tonight.

$$

NEZ002-003-019>021-054-055-095-096-040145-
/O.CON.KCYS.HW.A.0031.171204T1200Z-171204T2100Z/
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
948 AM MST Sun Dec 3 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY AFTERNOON...

* TIMING...Strong winds are expected to develop after sunrise 
  Monday and continue through Monday afternoon. 

* WINDS...Northwest winds 30 to 40 mph with gusts up 60 mph 
  possible. 

* IMPACTS...Mainly to transportation. Dangerous travel for light 
  weight and high profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

WYZ107-108-118-119-040145-
/O.CON.KCYS.HW.A.0031.171204T0600Z-171204T2100Z/
East Platte County-Goshen County-Central Laramie County-
East Laramie County-
Including the cities of Wheatland, Guernsey, Torrington, 
Cheyenne, and Pine Bluffs
948 AM MST Sun Dec 3 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

* TIMING...Winds will become strong late tonight and continue 
  through Monday afternoon. 

* WINDS...Northwest winds 30 to 40 mph with gusts up to 60 mph 
  possible. 

* IMPACTS...Mainly to transportation. Dangerous travel for light 
  weight and high profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 2, 12:58 PM MSTHigh Wind WatchCYSAlbany, Goshen, Laramie, Platte24 hr
Dec 2, 1:05 PM MSTWinter Storm WarningCYSAlbany, Carbon, Converse, Niobrara, Platte46 hr

Nearby

High Wind Warnings in Wyoming, 2017Every high wind warning in 2017

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.