Alert archive / Wyoming / High Wind Watches in 2017

High Wind Watch 21, NWS Riverton, WY

November 14, 2017Park County, Wyoming

NWS Riverton, WY issued this high wind watch at Nov 14, 2017, 1:01 PM MST for Park County, Wyoming. It took effect at Nov 16, 2017, 12:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued
Nov 14, 2017, 1:01 PM MST (20:01 UTC)
In effect from
Nov 16, 2017, 12:00 AM MST
Expired
Nov 15, 2017, 12:57 AM MST
In force
Issued by
NWS Riverton, WY

County Park County, WY

The radar

The Billings radar (KBLX), 167 km from the middle of the area, began a volume at 19:59 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 12:00Z, 8.0 hours before the alert went out and 187 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 2017-11-14Temperature 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 2017-11-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2195 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

867 
WWUS75 KRIW 142001
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
101 PM MST Tue Nov 14 2017

...Another round of strong wind for the Cody Foothills late 
Wednesday night into Thursday morning...

.Strong mountain top winds and an approaching jet stream will lead
to potential high winds surfacing in the Cody Foothills later
Wednesday Night into Thursday Morning.

WYZ003-151215-
/O.NEW.KRIW.HW.A.0021.171116T0700Z-171116T1900Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
101 PM MST Tue Nov 14 2017

...HIGH WIND WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY MORNING...

The National Weather Service in Riverton has issued a High Wind
Watch, which is in effect from late Wednesday night through
Thursday morning. 

* TIMING...Wind will increase rapidly late Wednesday Night and
  continue into Thursday morning.

* WINDS...West 30 to 40 mph with gusts to 60 mph. Stronger winds
  are possible in and near Clark.

* IMPACTS...Strong crosswinds along highway 120 from south of Cody
  to the Clark area will likely impact travel during this period.

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.

&&

$$

Team Riverton
1 follow-up statement
609 
WWUS75 KRIW 150757
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
1257 AM MST Wed Nov 15 2017

...Another round of strong wind likely for the Cody Foothills 
late tonight into Thursday morning...

...Strong winds possible from Sweetwater to Natrona County on
Thursday...

.Strong mountain top winds will likely mix to the surface in the
Cody Foothills later Wednesday Night into Thursday Morning. Strong
mid level winds may mix to the surface from Rock Springs to Casper
Thursday.

WYZ003-152200-
/O.UPG.KRIW.HW.A.0021.171116T0700Z-171116T1900Z/
/O.NEW.KRIW.HW.W.0027.171116T0300Z-171116T1800Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
1257 AM MST Wed Nov 15 2017

...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 11 AM
MST THURSDAY...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect from 8 PM this evening to 11 AM MST
Thursday. The High Wind Watch is no longer in effect. 

* TIMING...Wind will increase rapidly tonight and continue into 
  Thursday morning. 

* WINDS...West 30 to 40 mph with gusts to 60 mph. Stronger winds 
  are possible in and near Clark. 

* IMPACTS...Strong crosswinds along highway 120 from south of 
  Cody to the Clark area will likely impact travel during this 
  period. 

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.

&&

$$

WYZ019-020-030-152200-
/O.NEW.KRIW.HW.A.0022.171116T1600Z-171117T0100Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-East Sweetwater County-
Including the cities of Jeffrey City, Casper, and Wamsutter
1257 AM MST Wed Nov 15 2017

...HIGH WIND WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...

The National Weather Service in Riverton has issued a High Wind
Watch, which is in effect from Thursday morning through Thursday
afternoon. 

* TIMING...Winds increasing Thursday morning and becoming strong
  from midday Thursday through Thursday afternoon.

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles in addition to weakened or dead trees. 

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 Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 14, 12:59 PM MSTWinter Storm WatchRIWFremont, Lincoln, Sublette, Teton24 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.