Alert archive / Wyoming / High Wind Warnings in 2012

High Wind Warning 8, NWS Riverton, WY

January 27, 2012Fremont County, Hot Springs County, Park County, Wyoming

NWS Riverton, WY issued this high wind warning at Jan 27, 2012, 1:51 PM MST for Fremont County, Hot Springs County, Park County, Wyoming. It took effect at Jan 27, 2012, 11:00 PM MST. It was in force for 12 hr. 1 report 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
Jan 27, 2012, 1:51 PM MST (20:51 UTC)
In effect from
Jan 27, 2012, 11:00 PM MST
Expired
Jan 28, 2012, 11:00 AM MST
In force
12 hr
Issued by
NWS Riverton, WY

Counties Fremont County, WY, Hot Springs County, WY, Park County, WY

The radar

The Riverton/Lander radar (KRIW), 84 km from the middle of the area, began a volume at 20:51 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
Jan 28, 4:20 AM MSTNON-TSTM WND GST 7523 Nw Cody, WY

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

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 8.9 hours before the alert went out and 414 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, Salt Lake City I, UT at 12:00Z on 2012-01-27Temperature 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, Salt Lake City I, UT at 12:00Z on 2012-01-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
1473 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
80 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.

645 
WWUS75 KRIW 272051
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
151 PM MST FRI JAN 27 2012

...HIGH WINDS POSSIBLE IN PARK COUNTY LATER TONIGHT AND SATURDAY
MORNING...

.A STRONG SURFACE PRESSURE GRADIENT IS EXPECTED TO COMBINE WITH
VERY STRONG WINDS ALOFT TO PRODUCE CONDITIONS FAVORABLE FOR HIGH
WINDS ALONG THE EAST SLOPES OF THE ABSAROKA MOUNTAINS AND IN THE
FOOTHILLS NORTH OF CODY...AROUND THE CLARK AREA. THE WINDS ARE
EXPECTED TO INCREASE THIS EVENING WITH THE THREAT OF HIGH WINDS
CONTINUING THROUGH SATURDAY MORNING.

WYZ002-003-280500-
/O.UPG.KRIW.HW.A.0007.120128T0600Z-120128T1800Z/
/O.NEW.KRIW.HW.W.0008.120128T0600Z-120128T1800Z/
ABSAROKA MOUNTAINS-CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
151 PM MST FRI JAN 27 2012

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

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM MST
SATURDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...WINDS ARE EXPECTED TO INCREASE 
  SIGNIFICANTLY BY 11 PM MST TONIGHT AND CONTINUE THROUGH 
  SATURDAY MORNING BEFORE TAPERING OFF AROUND 11 AM MST. 

* WIND...THE MOUNTAINS ARE EXPECTED TO HAVE WEST WINDS OF 45 TO 50
  MPH WITH GUSTS OF 75 MPH ON CHIEF JOSEPH HIGHWAY. THE FOOTHILLS
  ARE EXPECTED TO HAVE WEST WINDS OF 40 MPH WITH GUSTS TO 65 MPH
  ALONG HIGHWAY 120 AROUND CLARK.

* IMPACTS...LIGHT WEIGHT AND HIGH PROFILE VEHICLES MAY WISH TO 
  AVOID TRAVEL ON HIGHWAY 120 AND CHIEF JOSEPH HIGHWAY LATER 
  TONIGHT AND SATURDAY MORNING AS STRONG CROSS WINDS MAY BE 
  ENCOUNTERED. 

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.

&&

$$

C.BAKER
4 follow-up statements
653 
WWUS75 KRIW 280457
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
957 PM MST FRI JAN 27 2012

...HIGH WINDS EXPECTED IN PARK COUNTY LATER TONIGHT AND SATURDAY
MORNING...

.A STRONG SURFACE PRESSURE GRADIENT IS EXPECTED TO COMBINE WITH
VERY STRONG WINDS ALOFT TO PRODUCE CONDITIONS FAVORABLE FOR HIGH
WINDS ALONG THE EAST SLOPES OF THE ABSAROKA MOUNTAINS AND IN THE
FOOTHILLS NORTH OF CODY...AROUND THE CLARK AREA. THE WINDS ARE
EXPECTED TO INCREASE THIS EVENING WITH THE THREAT OF HIGH WINDS
CONTINUING THROUGH SATURDAY MORNING.

WYZ002-003-281300-
/O.CON.KRIW.HW.W.0008.120128T0600Z-120128T1800Z/
ABSAROKA MOUNTAINS-CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
957 PM MST FRI JAN 27 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* SUMMARY AND TIMING...WINDS ARE EXPECTED TO INCREASE 
  SIGNIFICANTLY BY 11 PM MST TONIGHT AND CONTINUE THROUGH 
  SATURDAY MORNING BEFORE TAPERING OFF AROUND 11 AM MST. 

* WIND...THE MOUNTAINS ARE EXPECTED TO HAVE WEST WINDS OF 45 TO 50
  MPH WITH GUSTS OF 75 MPH ON CHIEF JOSEPH HIGHWAY. THE FOOTHILLS
  ARE EXPECTED TO HAVE WEST WINDS OF 40 MPH WITH GUSTS TO 65 MPH
  ALONG HIGHWAY 120 AROUND CLARK. A SENSOR ON THE CHIEF JOSEPH
  HIGHWAY WAS GUSTING OVER 60 MPH LATE THIS EVENING WITH GUSTS
  APPROACHING 40 MPH ON THE WEST SIDE OF CODY.

* IMPACTS...LIGHT WEIGHT AND HIGH PROFILE VEHICLES MAY WISH TO 
  AVOID TRAVEL ON HIGHWAY 120 AND CHIEF JOSEPH HIGHWAY LATER 
  TONIGHT AND SATURDAY MORNING AS STRONG CROSS WINDS MAY BE 
  ENCOUNTERED. 

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.

&&

$$

TEAM RIVERTON
017 
WWUS75 KRIW 280938
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
238 AM MST SAT JAN 28 2012

...HIGH WINDS EXPECTED IN PARK COUNTY THIS MORNING...

.A STRONG SURFACE PRESSURE GRADIENT IS EXPECTED TO COMBINE WITH
VERY STRONG WINDS ALOFT TO PRODUCE CONDITIONS FAVORABLE FOR HIGH
WINDS ALONG THE EAST SLOPES OF THE ABSAROKA MOUNTAINS AND IN THE
FOOTHILLS NORTH OF CODY...AROUND THE CLARK AREA THIS MORNING. 
WYZ002-003-281800-
/O.CON.KRIW.HW.W.0008.000000T0000Z-120128T1800Z/
ABSAROKA MOUNTAINS-CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
238 AM MST SAT JAN 28 2012

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

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

* SUMMARY AND TIMING...WEST WINDS ARE EXPECTED TO CONTINUE THROUGH
  THIS MORNING BEFORE TAPERING OFF AROUND 11 AM MST.

* WIND...THE MOUNTAINS ARE EXPECTED TO HAVE WEST WINDS OF 45 TO 50
  MPH WITH GUSTS OF 75 MPH ON CHIEF JOSEPH HIGHWAY. THE FOOTHILLS
  ARE EXPECTED TO HAVE WEST WINDS OF 40 MPH WITH GUSTS TO 65 MPH
  ALONG HIGHWAY 120 AROUND CLARK. A SENSOR ON THE CHIEF JOSEPH
  HIGHWAY WAS GUSTING OVER 73 MPH AROUND 2 AM THIS MORNING WITH
  GUSTS APPROACHING 40 MPH ON THE WEST SIDE OF CODY LATE FRIDAY EVENING.

* IMPACTS...LIGHT WEIGHT AND HIGH PROFILE VEHICLES MAY WISH TO 
  AVOID TRAVEL ON HIGHWAY 120 AND CHIEF JOSEPH HIGHWAY LATER 
  TONIGHT AND SATURDAY MORNING AS STRONG CROSS WINDS MAY BE 
  ENCOUNTERED. 

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.

&&

$$

LIPSON
275 
WWUS75 KRIW 281141
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
441 AM MST SAT JAN 28 2012

...HIGH WINDS EXPECTED IN PARK COUNTY THIS MORNING...

.A STRONG SURFACE PRESSURE GRADIENT IS EXPECTED TO COMBINE WITH
VERY STRONG WINDS ALOFT TO PRODUCE CONDITIONS FAVORABLE FOR HIGH
WINDS ALONG THE EAST SLOPES OF THE ABSAROKA MOUNTAINS AND IN THE
FOOTHILLS NORTH OF CODY...AROUND THE CLARK AREA THIS MORNING.

WYZ002-003-281800-
/O.CON.KRIW.HW.W.0008.000000T0000Z-120128T1800Z/
ABSAROKA MOUNTAINS-CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
441 AM MST SAT JAN 28 2012

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

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

* SUMMARY AND TIMING...STRONG WEST WINDS ARE EXPECTED TO CONTINUE 
  THROUGH THIS MORNING BEFORE TAPERING OFF AROUND 11 AM MST. 

* WIND...THE MOUNTAINS ARE EXPECTED TO HAVE WEST WINDS OF 45 TO 50
  MPH WITH GUSTS OF 75 MPH ON CHIEF JOSEPH HIGHWAY. THE FOOTHILLS
  ARE EXPECTED TO HAVE WEST WINDS OF 40 MPH WITH GUSTS TO 65 MPH
  ALONG HIGHWAY 120 AROUND CLARK. A SENSOR ON THE CHIEF JOSEPH
  HIGHWAY WAS RECORDING SUSTAINED WINDS NEAR 50 MPH WITH GUSTS UP
  TO 75 MPH AROUND 415 AM.

* IMPACTS...LIGHT WEIGHT AND HIGH PROFILE VEHICLES MAY WISH TO 
  AVOID TRAVEL ON HIGHWAY 120 AND CHIEF JOSEPH HIGHWAY LATER 
  TONIGHT AND SATURDAY MORNING AS STRONG CROSS WINDS MAY BE 
  ENCOUNTERED. 

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.

&&

$$
492 
WWUS75 KRIW 281751
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1051 AM MST SAT JAN 28 2012

....HIGH WIND WARNING WILL EXPIRE AT 11 AM MST THIS MORNING...

.THE WINDS OVER AND NEAR THE EAST SLOPES OF THE ABSAROKA MOUNTAINS
WILL DECREASE THROUGH THE AFTERNOON AND INTO THE EVENING. THE
MOUNTAINS MAY STILL SEE WIND GUSTS OF 60 TO 70 MPH.

WYZ002-003-281900-
/O.EXP.KRIW.HW.W.0008.000000T0000Z-120128T1800Z/
ABSAROKA MOUNTAINS-CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
1051 AM MST SAT JAN 28 2012

...HIGH WIND WARNING WILL EXPIRE AT 11 AM MST THIS MORNING...

THE HIGH WIND WARNING WILL EXPIRE AT 11 AM MST THIS MORNING. 

THE WINDS OVER AND NEAR THE EAST SLOPES OF THE ABSAROKA MOUNTAINS
WILL DECREASE THROUGH THE AFTERNOON AND INTO THE EVENING. THE
MOUNTAINS MAY STILL SEE WIND GUSTS OF 60 TO 70 MPH.

$$

C.BAKER

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 27, 9:08 AM MSTHigh Wind WatchRIWFremont, Hot Springs, Park5 hr

Nearby

High Wind Warnings in Wyoming, 2012Every high wind 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.