Alert archive / Wyoming / High Wind Watches in 2014

High Wind Watch 21, NWS Riverton, WY

November 20, 20144 counties in Wyoming

NWS Riverton, WY issued this high wind watch at Nov 20, 2014, 2:17 PM MST for 4 counties in Wyoming. It took effect at Nov 22, 2014, 6:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued
Nov 20, 2014, 2:17 PM MST (21:17 UTC)
In effect from
Nov 22, 2014, 6:00 AM MST
Expired
Nov 21, 2014, 2:59 PM MST
In force
Issued by
NWS Riverton, WY

Counties Fremont County, WY, Natrona County, WY, Park County, WY, Sweetwater County, WY

The radar

The Riverton/Lander radar (KRIW), 2 km from the middle of the area, began a volume at 21:14 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, 9.3 hours before the alert went out and 7 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 2014-11-20Temperature 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 2014-11-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 227 square meters per square second.1939Sfc1 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
2064 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
227 m²/s²
0-3 km storm-relative helicity
210 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.

956 
WWUS75 KRIW 202117
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
217 PM MST THU NOV 20 2014

...STRONG WIND POSSIBLE ACROSS SOUTHEAST FREMONT COUNTY AND
NATRONA COUNTY ON SATURDAY...

.STRONG SOUTHWEST FLOW AHEAD OF AN APPROACHING STORM SYSTEM MAY
CAUSE WINDS TO GUST IN EXCESS OF 60 MPH ON SATURDAY. 

WYZ019-020-211000-
/O.NEW.KRIW.HW.A.0021.141122T1300Z-141123T0700Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
217 PM MST THU NOV 20 2014

...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY
EVENING. 

* SUMMARY AND TIMING...SOUTHWEST FLOW WILL INCREASE AHEAD OF AN
  INCOMING STORM SYSTEM EARLY SATURDAY MORNING...PEAKING SATURDAY
  MORNING INTO EARLY SATURDAY AFTERNOON. 

* WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS OVER 60 MPH. 

* IMPACTS...STRONG WINDS MAY IMPEDE TRAVEL FOR LIGHT AND HIGH
  PROFILE VEHICLES ON SATURDAY ACROSS PORTIONS OF HIGHWAY 789 AND
  26 AS WELL AS PORTIONS OF INTERSTATE 25. PLEASE CHECK FOR
  CLOSURES AND ADVISORIES BEFORE ATTEMPTING TRAVEL IN THIS AREA ON
  SATURDAY. IN ADDITION...OBJECTS KEPT OUTDOORS MAY BE DAMAGED OR
  BLOWN AROUND BY THE WIND...TAKE TIME TO SECURE LOOSE OBJECTS IF
  POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A
HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$
2 follow-up statements
651 
WWUS75 KRIW 210853
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
153 AM MST FRI NOV 21 2014

...STRONG WIND POSSIBLE ACROSS THE CODY FOOTHILLS...SOUTHEAST FREMONT COUNTY
AND NATRONA COUNTY ON SATURDAY...

.STRONG SOUTHWEST FLOW AHEAD OF AN APPROACHING STORM SYSTEM MAY
CAUSE WINDS TO GUST IN EXCESS OF 60 MPH ON SATURDAY.

WYZ022-212300-
/O.EXA.KRIW.HW.A.0021.141122T1300Z-141123T0700Z/
CASPER MOUNTAIN-
153 AM MST FRI NOV 21 2014

...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY
EVENING. 

* SUMMARY AND TIMING...SOUTHWEST FLOW WILL INCREASE AHEAD OF AN 
  INCOMING STORM SYSTEM EARLY SATURDAY MORNING...PEAKING FROM 
  SATURDAY MORNING INTO EARLY SATURDAY AFTERNOON. 

* WIND...SOUTHWEST 30 TO 50 MPH WITH GUSTS OVER 70 MPH.

* IMPACTS...STRONG WINDS MAY IMPEDE TRAVEL FOR LIGHT AND HIGH
  PROFILE VEHICLES ON SATURDAY ACROSS PORTIONS OF LOCAL ROADWAYS
  AND HIGHWAYS. PLEASE CHECK FOR CLOSURES AND ADVISORIES BEFORE
  ATTEMPTING TRAVEL IN THIS AREA ON SATURDAY. IN
  ADDITION...OBJECTS KEPT OUTDOORS MAY BE DAMAGED OR BLOWN AROUND
  BY THE WIND...TAKE TIME TO SECURE LOOSE OBJECTS IF POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A
HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ003-212300-
/O.EXA.KRIW.HW.A.0021.141122T1300Z-141123T0700Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
153 AM MST FRI NOV 21 2014

...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY
EVENING. 

* SUMMARY AND TIMING...WEST TO SOUTHWEST FLOW WILL INCREASE AHEAD
  OF AN INCOMING STORM SYSTEM BY EARLY SATURDAY MORNING...LASTING
  THROUGH INTO SAT SATURDAY EVENING.

* WIND...WEST 30 TO 40 MPH WITH GUSTS OVER 60 MPH.

* IMPACTS...STRONG WINDS MAY IMPEDE TRAVEL FOR LIGHT AND HIGH
  PROFILE VEHICLES ON SATURDAY BETWEEN CODY AND CLARK...ESPECIALLY
  ACROSS PORTIONS OF HIGHWAY 120. PLEASE CHECK FOR CLOSURES AND
  ADVISORIES BEFORE ATTEMPTING TRAVEL IN THIS AREA ON SATURDAY. IN
  ADDITION...OBJECTS KEPT OUTDOORS MAY BE DAMAGED OR BLOWN AROUND
  BY THE WIND...TAKE TIME TO SECURE LOOSE OBJECTS IF POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A
HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ019-020-212300-
/O.CON.KRIW.HW.A.0021.141122T1300Z-141123T0700Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
153 AM MST FRI NOV 21 2014

...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SATURDAY EVENING...

A HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING. 

* SUMMARY AND TIMING...SOUTHWEST FLOW WILL INCREASE AHEAD OF AN 
  INCOMING STORM SYSTEM EARLY SATURDAY MORNING...PEAKING 
  SATURDAY MORNING INTO EARLY SATURDAY AFTERNOON. 

* WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS OVER 60 MPH.

* IMPACTS...STRONG WINDS MAY IMPEDE TRAVEL FOR LIGHT AND HIGH
  PROFILE VEHICLES ON SATURDAY ACROSS PORTIONS OF HIGHWAY
  789...287... AND 26. PLEASE CHECK FOR CLOSURES AND ADVISORIES
  BEFORE ATTEMPTING TRAVEL IN THIS AREA ON SATURDAY. IN
  ADDITION...OBJECTS KEPT OUTDOORS MAY BE DAMAGED OR BLOWN AROUND
  BY THE WIND...TAKE TIME TO SECURE LOOSE OBJECTS IF POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A
HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$
823 
WWUS75 KRIW 212159
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
259 PM MST FRI NOV 21 2014

...STRONG WIND POSSIBLE ACROSS THE CODY FOOTHILLS...SOUTHEAST
FREMONT COUNTY AND NATRONA COUNTY ON SATURDAY...

.STRONG SOUTHWEST FLOW AHEAD OF AN APPROACHING STORM SYSTEM MAY
CAUSE WINDS TO GUST IN EXCESS OF 60 MPH ON SATURDAY.

WYZ019-020-022-221030-
/O.UPG.KRIW.HW.A.0021.141122T1300Z-141123T0700Z/
/O.NEW.KRIW.HW.W.0024.141122T1300Z-141123T0700Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
259 PM MST FRI NOV 21 2014

...HIGH WIND WARNING IN EFFECT FROM 6 AM SATURDAY TO MIDNIGHT MST
SATURDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 6 AM SATURDAY TO MIDNIGHT MST
SATURDAY NIGHT. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...SOUTHWEST FLOW WILL INCREASE AHEAD OF AN 
  INCOMING STORM SYSTEM EARLY SATURDAY MORNING...PEAKING FROM 
  SATURDAY MORNING INTO EARLY SATURDAY AFTERNOON. 

* WIND...SOUTHWEST 30 TO 50 MPH WITH GUSTS OVER 70 MPH.

* IMPACTS...STRONG WINDS WILL IMPEDE TRAVEL FOR LIGHT AND HIGH 
  PROFILE VEHICLES ON SATURDAY ACROSS PORTIONS OF LOCAL ROADWAYS 
  AND HIGHWAYS. PLEASE CHECK FOR CLOSURES AND ADVISORIES BEFORE 
  ATTEMPTING TRAVEL IN THIS AREA ON SATURDAY. IN ADDITION... 
  OBJECTS KEPT OUTDOORS MAY BE DAMAGED OR BLOWN AROUND BY THE 
  WIND...TAKE TIME TO SECURE LOOSE OBJECTS IF POSSIBLE. 

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 LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ003-221030-
/O.UPG.KRIW.HW.A.0021.141122T1300Z-141123T0700Z/
/O.NEW.KRIW.HW.W.0024.141122T1300Z-141123T0700Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
259 PM MST FRI NOV 21 2014

...HIGH WIND WARNING IN EFFECT FROM 6 AM SATURDAY TO MIDNIGHT MST
SATURDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 6 AM SATURDAY TO MIDNIGHT MST
SATURDAY NIGHT. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...WEST TO SOUTHWEST FLOW WILL INCREASE 
  AHEAD OF AN INCOMING STORM SYSTEM BY EARLY SATURDAY MORNING...
  LASTING THROUGH INTO SAT SATURDAY EVENING. 

* WIND...WEST 30 TO 40 MPH WITH GUSTS OVER 60 MPH.

* IMPACTS...STRONG WINDS WILL IMPEDE TRAVEL FOR LIGHT AND HIGH
  PROFILE VEHICLES ON SATURDAY BETWEEN CODY AND CLARK...
  ESPECIALLY ACROSS PORTIONS OF HIGHWAY 120. PLEASE CHECK FOR
  CLOSURES AND ADVISORIES BEFORE ATTEMPTING TRAVEL IN THIS AREA ON
  SATURDAY. IN ADDITION...OBJECTS KEPT OUTDOORS MAY BE DAMAGED OR
  BLOWN AROUND BY THE WIND...TAKE TIME TO SECURE LOOSE OBJECTS IF
  POSSIBLE.

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 LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 20, 2:11 PM MSTWinter Storm WatchRIWFremont, Hot Springs, Lincoln, Park, Sublette, Teton25 hr

Nearby

High Wind Watches in Wyoming, 2014Every high wind watch in 2014

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.