Alert archive / Wyoming / High Wind Watches in 2017

High Wind Watch 13, NWS Cheyenne, WY

March 11, 20174 counties in Wyoming

NWS Cheyenne, WY issued this high wind watch at Mar 11, 2017, 3:26 AM MST for 4 counties in Wyoming. It took effect at Mar 12, 2017, 3:00 AM MDT. It was in force for .

The area

The counties it named.

The facts

Issued
Mar 11, 2017, 3:26 AM MST (10:26 UTC)
In effect from
Mar 12, 2017, 3:00 AM MDT
Expired
Mar 11, 2017, 1:09 PM MST
In force
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 10:29 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.

The nearest sounding before it

Riverton, WY (KRIW), launched 00:00Z, 10.4 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 00:00Z on 2017-03-11Temperature 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 00:00Z on 2017-03-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
2300 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

768 
WWUS75 KCYS 111026
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
326 AM MST Sat Mar 11 2017

...Strong Winds Possible for the Wind Prone Areas of Southeast
Wyoming Late Tonight...

WYZ106-110-116-117-112200-
/O.NEW.KCYS.HW.A.0013.170312T0900Z-170312T2000Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
326 AM MST Sat Mar 11 2017

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

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

* TIMING...Winds will increase late tonight, and are expected to
  remain strong through midday Sunday.

* WINDS...West to northwest winds of 35 to 45 mph gusting around 
  60 mph.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous for light weight and high profile vehicles, especially  
  along north to south oriented roads. 

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.

&&

$$
1 follow-up statement
138 
WWUS75 KCYS 112009
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
109 PM MST Sat Mar 11 2017

...Strong Winds expected for the Wind Prone areas of Southeast 
Wyoming early Sunday morning into early Sunday afternoon...

WYZ106-110-116-117-121030-
/O.UPG.KCYS.HW.A.0013.170312T0900Z-170312T2000Z/
/O.NEW.KCYS.HW.W.0018.170312T0900Z-170312T2000Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
109 PM MST Sat Mar 11 2017

...HIGH WIND WARNING IN EFFECT FROM 3 AM TO 2 PM MDT SUNDAY...

The National Weather Service in Cheyenne has issued a High Wind
Warning, which is in effect from 3 AM to 2 PM MDT Sunday. The
High Wind Watch is no longer in effect. 

* TIMING...Winds will increase late tonight, and are expected to
  remain strong through midday Sunday...strongest mainly Sunday 
  morning. 

* WINDS...West to northwest winds of 30 to 40 mph gusting to
  around 60 mph. 

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous for light weight and high profile vehicles, 
  especially along north to south oriented roads. 

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 11, 1:09 PM MSTHigh Wind WarningCYSAlbany, Carbon, Laramie, Platte24 hr

Nearby

High Wind Watches in Wyoming, 2017Every high wind watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.