Alert archive / Wyoming / High Wind Warnings in 2016

High Wind Warning 28, NWS Riverton, WY

December 18, 20164 counties in Wyoming

NWS Riverton, WY issued this high wind warning at Dec 18, 2016, 1:54 PM MST for 4 counties in Wyoming. It took effect at Dec 19, 2016, 2:00 AM MST. It was in force for 50 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 18, 2016, 1:54 PM MST (20:54 UTC)
In effect from
Dec 19, 2016, 2:00 AM MST
Expired
Dec 21, 2016, 3:31 AM MST
In force
50 hr
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 20:57 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.

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 8.9 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 2016-12-18Temperature 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 2016-12-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 279 square meters per square second.19395878Sfc1 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
1425 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
279 m²/s²
0-3 km storm-relative helicity
230 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

071 
WWUS75 KRIW 182054
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
154 PM MST SUN DEC 18 2016

...HIGH WINDS EXPECTED IN THE CODY FOOTHILLS...

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS.

WYZ003-191000-
/O.UPG.KRIW.HW.A.0020.161219T0900Z-161220T1800Z/
/O.NEW.KRIW.HW.W.0028.161219T0900Z-161220T1800Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
154 PM MST SUN DEC 18 2016

...HIGH WIND WARNING IN EFFECT FROM 2 AM MONDAY TO 11 AM MST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 2 AM MONDAY TO 11 AM MST
TUESDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* TIMING...WINDS WILL INCREASE THIS EVENING. HIGH WINDS ARE
  EXPECTED LATE TONIGHT AND CONTINUE AT TIMES THROUGH TUESDAY.

* WINDS...WEST 35 TO 40 MPH WITH GUSTS TO 65 MPH. HIGHER GUSTS
  ARE POSSIBLE IN THE VICINITY OF CLARK.

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER RISK 
  FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG HIGHWAY 
  120. IN ADDITION...SCATTERED SNOW SHOWERS WILL CAUSE PERIODS 
  OF LIMITED OR POOR VISIBILITY AND POSSIBLY SLICK 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.

&&

$$
12 follow-up statements
375 
WWUS75 KRIW 190158
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
658 PM MST SUN DEC 18 2016

...HIGH WINDS IN CODY AND CASPER AREAS MONDAY AND TUESDAY.

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS ALONG
WITH AREAS OF BLOWING AND DRIFTING SNOW SUNDAY NIGHT AND MONDAY. A
STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING THE POSSIBILITY
OF HIGH WINDS TO NATRONA AND SOUTHEAST FREMONT COUNTIES MONDAY
MORNING INTO TUESDAY EVENING.

WYZ003-191000-
/O.CON.KRIW.HW.W.0028.161219T0900Z-161220T1800Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
658 PM MST SUN DEC 18 2016

...HIGH WIND WARNING REMAINS IN EFFECT FROM 2 AM MONDAY TO 11 AM
MST TUESDAY...

* TIMING...WINDS WILL INCREASE THIS EVENING. HIGH WINDS ARE
  EXPECTED LATE TONIGHT AND CONTINUE AT TIMES THROUGH TUESDAY
  MORNING.

* WINDS...WEST 35 TO 40 MPH WITH GUSTS TO 65 MPH. HIGHER GUSTS 
  ARE POSSIBLE IN THE VICINITY OF CLARK. 

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER RISK FOR
  LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG HIGHWAY 120. IN
  ADDITION...STRONG WINDS WILL CAUSE AREAS OF BLOWING AND DRIFTING
  SNOW AND LIMITED VISIBILITY TONIGHT THROUGH TUESDAY 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.

&&

$$

WYZ019-020-191000-
/O.NEW.KRIW.HW.A.0021.161219T1500Z-161221T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
658 PM MST SUN DEC 18 2016

...HIGH WIND WATCH IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY
EVENING...

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

* TIMING...WINDS WILL INCREASE EARLY MONDAY MORNING WITH HIGH
  WINDS POSSIBLE SHORTLY AFTER SUNRISE MONDAY. HIGH WINDS WILL
  REMAIN POSSIBLE THROUGH TUESDAY EVENING.

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS NEAR 60 MPH.
  STRONGER GUSTS POSSIBLE ALONG WYOMING BOULEVARD ON THE SOUTH
  SIDE OF CASPER.  

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER
  RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS WILL
  CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY
  MONDAY AND MONDAY NIGHT. 

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.

&&

$$
201 
WWUS75 KRIW 190210 CCA
NPWRIW

URGENT - WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE RIVERTON WY
710 PM MST SUN DEC 18 2016

...HIGH WINDS IN CODY AND CASPER AREAS MONDAY AND TUESDAY...

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS ALONG
WITH AREAS OF BLOWING AND DRIFTING SNOW SUNDAY NIGHT AND MONDAY. A
STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING THE POSSIBILITY
OF HIGH WINDS TO NATRONA AND SOUTHEAST FREMONT COUNTIES MONDAY
MORNING INTO TUESDAY EVENING.

WYZ003-191415-
/O.CON.KRIW.HW.W.0028.161219T0900Z-161220T1800Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
710 PM MST SUN DEC 18 2016

...HIGH WIND WARNING REMAINS IN EFFECT FROM 2 AM MONDAY TO 11 AM
MST TUESDAY...

* TIMING...WINDS WILL INCREASE THIS EVENING. HIGH WINDS ARE
  EXPECTED LATE TONIGHT AND CONTINUE AT TIMES THROUGH TUESDAY
  MORNING.

* WINDS...WEST 35 TO 40 MPH WITH GUSTS TO 65 MPH. HIGHER GUSTS 
  ARE POSSIBLE IN THE VICINITY OF CLARK. 

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER RISK FOR
  LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG HIGHWAY 120. IN
  ADDITION...STRONG WINDS WILL CAUSE AREAS OF BLOWING AND DRIFTING
  SNOW AND LIMITED VISIBILITY TONIGHT THROUGH TUESDAY 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.

&&

$$

WYZ019-020-191415-
/O.NEW.KRIW.HW.A.0021.161219T1500Z-161221T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
710 PM MST SUN DEC 18 2016

...HIGH WIND WATCH IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY
EVENING...

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

* TIMING...WINDS WILL INCREASE EARLY MONDAY MORNING WITH HIGH
  WINDS POSSIBLE SHORTLY AFTER SUNRISE MONDAY. HIGH WINDS WILL
  REMAIN POSSIBLE THROUGH TUESDAY EVENING.

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS NEAR 60 MPH.
  STRONGER GUSTS POSSIBLE ALONG WYOMING BOULEVARD ON THE SOUTH
  SIDE OF CASPER.  

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER
  RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS WILL
  CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY
  MONDAY AND MONDAY NIGHT. 

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.

&&

$$
987 
WWUS75 KRIW 190919
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
219 AM MST MON DEC 19 2016

...HIGH WINDS IN CODY AND CASPER AREAS TODAY AND TUESDAY...

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS
ALONG WITH AREAS OF BLOWING AND DRIFTING SNOW TODAY. A
STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING HIGH WINDS TO
NATRONA AND SOUTHEAST FREMONT COUNTIES THROUGH TUESDAY EVENING.

WYZ019-020-192300-
/O.UPG.KRIW.HW.A.0021.161219T1500Z-161221T0300Z/
/O.EXB.KRIW.HW.W.0028.161219T1200Z-161221T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
219 AM MST MON DEC 19 2016

...HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 8 PM MST TUESDAY. THE HIGH
WIND WATCH IS NO LONGER IN EFFECT. 

* TIMING...WINDS WILL BECOMING STRONG BEFORE SUNRISE WITH HIGH
  WINDS REMAINING POSSIBLE THROUGH TUESDAY EVENING...ALTHOUGH
  THERE COULD BE A LULL TONIGHT.

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS NEAR 60 MPH. 
  STRONGER GUSTS POSSIBLE ALONG WYOMING BOULEVARD ON THE SOUTH 
  SIDE OF CASPER. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER
  RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS WILL
  CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY
  TODAY AND TONIGHT.

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.

&&

$$

WYZ003-192300-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161220T1800Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
219 AM MST MON DEC 19 2016

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

* TIMING...HIGH WINDS ARE EXPECTED LATE TONIGHT AND CONTINUE AT
  TIMES THROUGH TUESDAY MORNING WITH A LULL POSSIBLE THIS
  AFTERNOON.

* WINDS...WEST 35 TO 40 MPH WITH GUSTS TO 65 MPH. HIGHER GUSTS 
  ARE POSSIBLE IN THE VICINITY OF CLARK. 

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER RISK 
  FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG HIGHWAY 
  120. IN ADDITION...STRONG WINDS WILL CAUSE AREAS OF BLOWING 
  AND DRIFTING SNOW AND LIMITED VISIBILITY TONIGHT THROUGH 
  TUESDAY 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.

&&

$$
419 
WWUS75 KRIW 192040
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
140 PM MST MON DEC 19 2016

...HIGH WINDS IN CODY AND CASPER AREAS THE REST OF TODAY AND
TUESDAY...

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS
ALONG WITH AREAS OF BLOWING AND DRIFTING SNOW TODAY. A
STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING HIGH WINDS TO
NATRONA AND SOUTHEAST FREMONT COUNTIES THROUGH TUESDAY EVENING.

WYZ016-200300-
/O.EXA.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
140 PM MST MON DEC 19 2016

...HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 8 PM MST TUESDAY. 

* TIMING...WINDS WILL REMAIN STRONG THROUGH TUESDAY
  EVENING...ALTHOUGH THEY MAY DROP OFF A BIT AND BECOME MORE
  WESTERLY TUESDAY MORNING WHEN SNOW BEGINS TO FALL.

* WINDS...WEST TO NORTHWEST WIND 20 TO 40 MPH WITH GUSTS NEAR 60
  MPH. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER
  RISK FOR LIGHT AND HIGH PROFILE VEHICLES. IN ADDITION...STRONG
  WINDS WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW THIS
  AFTERNOON AND OVERNIGHT WITH POSSIBLE LIMITED VISIBILITY. THEN
  NEW SNOWFALL CAN BY EXPECTED IN THE AREA BY TUESDAY MORNING WITH
  MORE REDUCTIONS TO VISIBILITY AND DRIFTING OF SNOW.  

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.

&&

$$

WYZ003-200300-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161220T1800Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
140 PM MST MON DEC 19 2016

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

* TIMING...AFTER A BIT OF A LULL THIS AFTERNOON FROM CODY
  SOUTHWARD...HIGH WINDS ARE EXPECTED TO RETURN TO THE ENTIRE
  AREA AGAIN TONIGHT AND CONTINUE AT TIMES THROUGH TUESDAY
  MORNING. THE AREA AROUND CLARK WILL CONTINUE TO BLOW HIGH
  THROUGHOUT THE FORECAST PERIOD.

* WINDS...WINDS WEST TO NORTHWEST 30 TO 40 MPH WITH GUSTS TO 65
  MPH. HIGHER GUSTS ARE POSSIBLE IN THE VICINITY OF CLARK.

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER RISK 
  FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG HIGHWAY 
  120. IN ADDITION...STRONG WINDS WILL CAUSE AREAS OF BLOWING 
  AND DRIFTING SNOW AND LIMITED VISIBILITY TONIGHT THROUGH 
  TUESDAY 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.

&&

$$

WYZ019-020-200300-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
140 PM MST MON DEC 19 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST TUESDAY...

* TIMING...HIGH WINDS WILL CONTINUE THROUGH TUESDAY
  EVENING...ALTHOUGH THERE COULD BE A BRIEF LULL LATE TONIGHT OR
  EARLY TUESDAY MORNING.

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS NEAR 60 MPH. 
  STRONGER GUSTS POSSIBLE ALONG WYOMING BOULEVARD ON THE SOUTH 
  SIDE OF CASPER. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS 
  WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND LIMITED 
  VISIBILITY TODAY AND TONIGHT. 

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.

&&

$$
543 
WWUS75 KRIW 200137
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
637 PM MST MON DEC 19 2016

...HIGH WINDS IN THE CODY AND CASPER INTO TUESDAY...

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS
ALONG WITH AREAS OF BLOWING AND DRIFTING SNOW TODAY. A
STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING HIGH WINDS TO
NATRONA AND SOUTHEAST FREMONT COUNTIES THROUGH TUESDAY EVENING.

WYZ003-201115-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161220T1800Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
637 PM MST MON DEC 19 2016

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

* TIMING...AFTER A BIT OF A LULL THIS AFTERNOON FROM CODY 
  SOUTHWARD...HIGH WINDS ARE EXPECTED TO RETURN TO THE ENTIRE 
  AREA AGAIN TONIGHT AND CONTINUE AT TIMES THROUGH TUESDAY 
  MORNING. THE AREA AROUND CLARK WILL CONTINUE TO BLOW HIGH 
  THROUGHOUT THE FORECAST PERIOD. 

* WINDS...WINDS WEST TO NORTHWEST 35 TO 45 MPH WITH GUSTS TO 70
  MPH. HIGHER GUSTS OF 80 TO 100 MPH MAY CONTINUE NEAR AND JUST
  SOUTH OF CLARK. A SENSOR ALONG HIGHWAY 120 ABOUT 8 MILES SOUTH
  OF CLARK REPORTED A WIND GUST TO 84 MPH AT 6 PM. THIS IS THE
  STRONGEST WIND EVER REPORTED SINCE THIS SENSOR WAS INSTALLED IN
  2011. A SENSOR ON THE WEST SIDE OF CLARK HIT 108 MPH AT 532 PM.

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED TO EXTREME BLOW
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG
  HIGHWAY 120. IN ADDITION...STRONG WINDS WILL CAUSE AREAS OF
  BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY TONIGHT THROUGH
  TUESDAY 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.

&&

$$

WYZ019-020-201115-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
637 PM MST MON DEC 19 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST TUESDAY...

* TIMING...HIGH WINDS WILL CONTINUE THROUGH TUESDAY EVENING... 
  ALTHOUGH THERE COULD BE A BRIEF LULL LATE TONIGHT OR EARLY 
  TUESDAY MORNING. 

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS NEAR 60 MPH.
  STRONGER GUSTS OF 60 TO 80 MPH WILL CONTINUE ALONG WYOMING
  BOULEVARD ON THE SOUTH SIDE OF CASPER. OUTER DRIVE HAS HAD
  MULTIPLE GUSTS OVER 80 MPH TODAY.

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS 
  WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND LIMITED 
  VISIBILITY TODAY AND TONIGHT. 

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.

&&

$$

WYZ016-201115-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
637 PM MST MON DEC 19 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST TUESDAY...

* TIMING...WINDS WILL REMAIN STRONG THROUGH TUESDAY EVENING... 
  ALTHOUGH THEY MAY DROP OFF A BIT AND BECOME MORE WESTERLY 
  TUESDAY MORNING WHEN SNOW BEGINS TO FALL. 

* WINDS...WEST TO NORTHWEST WIND 20 TO 40 MPH WITH GUSTS NEAR 60 
  MPH. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES. IN ADDITION... 
  STRONG WINDS WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW 
  THIS AFTERNOON AND OVERNIGHT WITH POSSIBLE LIMITED VISIBILITY. 
  THEN NEW SNOWFALL CAN BY EXPECTED IN THE AREA BY TUESDAY 
  MORNING WITH MORE REDUCTIONS TO VISIBILITY AND DRIFTING OF 
  SNOW. 

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.

&&

$$
268 
WWUS75 KRIW 200225
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
725 PM MST MON DEC 19 2016

...HIGH WINDS IN THE CODY AND CASPER INTO TUESDAY...

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS
ALONG WITH AREAS OF BLOWING AND DRIFTING SNOW TODAY. A
STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING HIGH WINDS TO
NATRONA AND SOUTHEAST FREMONT COUNTIES THROUGH TUESDAY EVENING.

WYZ003-201130-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161220T1800Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
725 PM MST MON DEC 19 2016

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

* TIMING...AFTER A BIT OF A LULL THIS AFTERNOON FROM CODY 
  SOUTHWARD...HIGH WINDS ARE EXPECTED TO RETURN TO THE ENTIRE 
  AREA AGAIN TONIGHT AND CONTINUE AT TIMES THROUGH TUESDAY 
  MORNING. THE AREA AROUND CLARK WILL CONTINUE TO BLOW HIGH 
  THROUGHOUT THE FORECAST PERIOD. 

* WINDS...WINDS WEST TO NORTHWEST 35 TO 45 MPH WITH GUSTS TO 70
  MPH. HIGHER GUSTS OF 80 TO 100 MPH MAY CONTINUE NEAR AND JUST
  SOUTH OF CLARK. A SENSOR ALONG HIGHWAY 120 ABOUT 8 MILES SOUTH
  OF CLARK REPORTED A WIND GUST TO 87 MPH AT 615 PM. THIS IS THE
  STRONGEST WIND EVER REPORTED SINCE THIS SENSOR WAS INSTALLED IN
  2011. A SENSOR ON THE WEST SIDE OF CLARK HIT 108 MPH AT 532 PM.

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED TO EXTREME BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 120. IN ADDITION...STRONG WINDS WILL CAUSE AREAS OF 
  BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY TONIGHT 
  THROUGH TUESDAY 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.

&&

$$

WYZ019-020-201130-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
725 PM MST MON DEC 19 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST TUESDAY...

* TIMING...HIGH WINDS WILL CONTINUE THROUGH TUESDAY EVENING... 
  ALTHOUGH THERE COULD BE A BRIEF LULL LATE TONIGHT OR EARLY 
  TUESDAY MORNING. 

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS NEAR 60 MPH. 
  STRONGER GUSTS OF 60 TO 80 MPH WILL CONTINUE ALONG WYOMING 
  BOULEVARD ON THE SOUTH SIDE OF CASPER. OUTER DRIVE HAS HAD 
  MULTIPLE GUSTS OVER 80 MPH TODAY. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS 
  WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND LIMITED 
  VISIBILITY TODAY AND TONIGHT. 

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.

&&

$$

WYZ016-201130-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
725 PM MST MON DEC 19 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST TUESDAY...

* TIMING...WINDS WILL REMAIN STRONG THROUGH TUESDAY EVENING... 
  ALTHOUGH THEY MAY DROP OFF A BIT AND BECOME MORE WESTERLY 
  TUESDAY MORNING WHEN SNOW BEGINS TO FALL. 

* WINDS...WEST TO NORTHWEST WIND 20 TO 40 MPH WITH GUSTS NEAR 60 
  MPH. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES. IN ADDITION... 
  STRONG WINDS WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW 
  THIS AFTERNOON AND OVERNIGHT WITH POSSIBLE LIMITED VISIBILITY. 
  THEN NEW SNOWFALL CAN BY EXPECTED IN THE AREA BY TUESDAY 
  MORNING WITH MORE REDUCTIONS TO VISIBILITY AND DRIFTING OF 
  SNOW. 

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.

&&

$$
757 
WWUS75 KRIW 200848
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
148 AM MST TUE DEC 20 2016

...HIGH WINDS FOR THE CODY FOOTHILLS THROUGH WEDNESDAY MORNING...

...HIGH WINDS FOR NATRONA COUNTY...THE RATTLESNAKE RANGE AND UPPER
WIND RIVER BASIN THROUGH THIS EVENING....

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS
ALONG WITH AREAS OF BLOWING AND DRIFTING SNOW INTO WEDNESDAY
MORNING. A STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING
HIGH WINDS TO NATRONA AND SOUTHEAST FREMONT COUNTIES THROUGH
THIS EVENING.

WYZ003-202300-
/O.EXT.KRIW.HW.W.0028.000000T0000Z-161221T1500Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
148 AM MST TUE DEC 20 2016

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* TIMING... HIGH WINDS WILL CONTINUE AT TIMES THROUGH THIS
  MORNING. AFTER A LULL THIS AFTERNOON...MORE HIGH WIND IS
  POSSIBLE TONIGHT. THE AREA AROUND CLARK WILL CONTINUE TO BLOW
  HIGH THROUGHOUT THE FORECAST PERIOD.

* WINDS...WINDS WEST TO NORTHWEST 35 TO 45 MPH WITH GUSTS TO 70
  MPH. HIGHER GUSTS OF 80 TO 100 MPH MAY CONTINUE NEAR AND JUST
  SOUTH OF CLARK. WIND GUSTS PAST 100 MPH HAVE ALREADY OCCURRED IN
  THE VICINITY OF CLARK.

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED TO EXTREME BLOW
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG
  HIGHWAY 120. IN ADDITION...STRONG WINDS WILL CAUSE AREAS OF
  BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY THROUGH
  WEDNESDAY 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.

&&

$$

WYZ019-020-202300-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
148 AM MST TUE DEC 20 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* TIMING...HIGH WINDS WILL CONTINUE INTO THIS EVENING BEFORE
  DECREASING FOLLOWING THE PASSAGE OF A COLD FRONT.

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS NEAR 60 MPH.
  STRONGER GUSTS OF 60 TO 80 MPH WILL CONTINUE ALONG WYOMING
  BOULEVARD ON THE SOUTH SIDE OF CASPER. OUTER DRIVE HAS HAD
  MULTIPLE GUSTS OVER 80 MPH ALREADY.

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS 
  WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND LIMITED 
  VISIBILITY TODAY AND TONIGHT. 

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.

&&

$$

WYZ016-202300-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
148 AM MST TUE DEC 20 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* TIMING...WINDS WILL REMAIN STRONG THROUGH THIS EVENING...
  ALTHOUGH THEY MAY DROP OFF A BIT AND BECOME MORE WESTERLY THIS
  MORNING WHEN SNOW BEGINS TO FALL.

* WINDS...WEST TO NORTHWEST WIND 20 TO 40 MPH WITH GUSTS NEAR 60 
  MPH. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES. IN ADDITION... 
  STRONG WINDS WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW 
  THIS AFTERNOON AND OVERNIGHT WITH POSSIBLE LIMITED VISIBILITY. 
  THEN NEW SNOWFALL CAN BY EXPECTED IN THE AREA BY TUESDAY 
  MORNING WITH MORE REDUCTIONS TO VISIBILITY AND DRIFTING OF 
  SNOW. 

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.

&&

$$
675 
WWUS75 KRIW 201946
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1246 PM MST TUE DEC 20 2016

...HIGH WINDS FOR THE CODY FOOTHILLS THROUGH WEDNESDAY MORNING...

...HIGH WINDS FOR NATRONA COUNTY...THE RATTLESNAKE RANGE AND
UPPER WIND RIVER BASIN THROUGH THIS EVENING....

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS
ALONG WITH AREAS OF BLOWING AND DRIFTING SNOW INTO WEDNESDAY
MORNING. A STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING
HIGH WINDS TO NATRONA AND SOUTHEAST FREMONT COUNTIES THROUGH THIS
EVENING.

WYZ003-210300-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T1500Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
1246 PM MST TUE DEC 20 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* TIMING... HIGH WINDS WILL CONTINUE AT TIMES THROUGH TONIGHT. THE
  AREA AROUND CLARK WILL CONTINUE TO BLOW HIGH THROUGH 8 AM
  WEDNESDAY.

* WINDS...WINDS WEST TO NORTHWEST 35 TO 45 MPH WITH GUSTS TO 70 
  MPH. HIGHER GUSTS OF 80 TO 100 MPH MAY CONTINUE NEAR AND JUST 
  SOUTH OF CLARK. WIND GUSTS PAST 100 MPH HAVE ALREADY OCCURRED 
  IN THE VICINITY OF CLARK. 

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED TO EXTREME BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 120. IN ADDITION...STRONG WINDS WILL CAUSE AREAS OF 
  BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY THROUGH 
  WEDNESDAY 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.

&&

$$

WYZ019-020-210300-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
1246 PM MST TUE DEC 20 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* TIMING...HIGH WINDS WILL CONTINUE INTO THIS EVENING BEFORE 
  DECREASING FOLLOWING THE PASSAGE OF A COLD FRONT. 

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS NEAR 60 MPH. 
  STRONGER GUSTS OF 60 TO 80 MPH WILL CONTINUE ALONG WYOMING 
  BOULEVARD ON THE SOUTH SIDE OF CASPER. OUTER DRIVE HAS HAD 
  MULTIPLE GUSTS OVER 80 MPH ALREADY. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS 
  WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND LIMITED 
  VISIBILITY TODAY AND TONIGHT. 

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.

&&

$$

WYZ016-210300-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
1246 PM MST TUE DEC 20 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* TIMING...WINDS WILL REMAIN STRONG THROUGH THIS EVENING.

* WINDS...WEST TO NORTHWEST WIND 20 TO 40 MPH WITH GUSTS NEAR 60 
  MPH. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES. IN ADDITION... 
  STRONG WINDS WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW 
  THIS AFTERNOON AND OVERNIGHT WITH POSSIBLE LIMITED VISIBILITY. 
  THEN NEW SNOWFALL CAN BY EXPECTED IN THE AREA BY TUESDAY 
  MORNING WITH MORE REDUCTIONS TO VISIBILITY AND DRIFTING OF 
  SNOW. 

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.

&&

$$
725 
WWUS75 KRIW 210233
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
733 PM MST TUE DEC 20 2016

...HIGH WINDS FOR THE CODY FOOTHILLS THROUGH WEDNESDAY MORNING...

...HIGH WINDS FOR NATRONA COUNTY AND THE RATTLESNAKE RANGE UNTIL 2
AM WEDNESDAY....

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS
ALONG WITH AREAS OF BLOWING AND DRIFTING SNOW INTO WEDNESDAY
MORNING. A STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING
HIGH WINDS TO NATRONA AND SOUTHEAST FREMONT COUNTIES THROUGH EARLY
WEDNESDAY.

WYZ019-020-210900-
/O.EXT.KRIW.HW.W.0028.000000T0000Z-161221T0900Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
733 PM MST TUE DEC 20 2016

...HIGH WIND WARNING NOW IN EFFECT UNTIL 2 AM MST WEDNESDAY...

* TIMING...HIGH WINDS WILL CONTINUE THROUGH EARLY WEDNESDAY
  MORNING BEFORE A COLD FRONT TURNS THE WINDS NORTH AND SHUTS OFF
  THE STRONGER WINDS.

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS AROUND 60 MPH.
  STRONGER GUSTS TO 70 MPH ARE POSSIBLE UNTIL MIDNIGHT IN THE
  WINDIER SPOTS. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW OVER
  RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS WILL
  CAUSE AREAS LOCAL BLOWING AND DRIFTING SNOW AND LIMITED
  VISIBILITY.

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.

&&

$$

WYZ003-210900-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T1500Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
733 PM MST TUE DEC 20 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* TIMING... HIGH WINDS WILL CONTINUE AT TIMES THROUGH 8 AM
  WEDNESDAY. THERE WILL LIKELY BE TWO VERY STRONG HIGH WIND
  EPISODES ONE THIS EVENING AND ANOTHER AFTER 2 AM OR SO UNTIL
  SUNRISE.

* WINDS...WINDS WEST TO NORTHWEST 35 TO 45 MPH WITH GUSTS TO 70
  MPH. HIGHER GUSTS OF 80 TO 100 MPH MAY CONTINUE NEAR AND JUST
  SOUTH OF CLARK. 

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED TO EXTREME BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 120. IN ADDITION...STRONG WINDS WILL CAUSE AREAS OF 
  BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY THROUGH 
  WEDNESDAY 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.

&&

$$

WYZ016-210345-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
733 PM MST TUE DEC 20 2016

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

* TIMING...WINDS WILL REMAIN GUSTY AT TIMES BUT THE THREAT OF HIGH
  WINDS WILL END AFTER 8 PM THIS EVENING.

* WINDS...WEST TO NORTHWEST WIND 20 TO 40 MPH WITH GUSTS NEAR 60
  MPH UNTIL 8 PM...BECOMING NORTHWEST 20 TO 30 MPH WITH GUSTS OF
  40 TO 50 MPH THE REMAINDER OF THE NIGHT.

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION AS WIND GUSTS TO 50
  MPH ARE POSSIBLE OVERNIGHT.

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.

&&

$$
519 
WWUS75 KRIW 210257
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
757 PM MST TUE DEC 20 2016

...HIGH WINDS FOR THE CODY FOOTHILLS THROUGH WEDNESDAY MORNING...

...HIGH WINDS FOR NATRONA COUNTY AND THE RATTLESNAKE RANGE UNTIL
2 AM WEDNESDAY....

.STRONG MID LEVEL WINDS MIXING TO THE SURFACE WITH A SERIES OF
UPPER LEVEL DISTURBANCES MOVING ACROSS NORTHWEST WYOMING WILL
BRING AN EXTENDED PERIOD OF HIGH WINDS TO THE CODY FOOTHILLS
ALONG WITH AREAS OF BLOWING AND DRIFTING SNOW INTO WEDNESDAY
MORNING. A STRENGTHENING SURFACE PRESSURE GRADIENT WILL BRING
HIGH WINDS TO NATRONA AND SOUTHEAST FREMONT COUNTIES THROUGH
EARLY WEDNESDAY.

WYZ016-210400-
/O.EXP.KRIW.HW.W.0028.000000T0000Z-161221T0300Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
757 PM MST TUE DEC 20 2016

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

IT WILL REMAIN WINDY OVERNIGHT BUT THE THREAT OF HIGH WINDS HAS
DIMINISHED. NORTHWEST WINDS WILL CONTINUE OVERNIGHT THOUGH AT
SPEEDS OF 20 TO 30 MPH WITH GUSTS OF 40 TO 50 MPH POSSIBLE.

$$

WYZ003-210900-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T1500Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
757 PM MST TUE DEC 20 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST WEDNESDAY...

* TIMING... HIGH WINDS WILL CONTINUE AT TIMES THROUGH 8 AM 
  WEDNESDAY. THERE WILL LIKELY BE TWO VERY STRONG HIGH WIND 
  EPISODES ONE THIS EVENING AND ANOTHER AFTER 2 AM OR SO UNTIL 
  SUNRISE. 

* WINDS...WINDS WEST TO NORTHWEST 35 TO 45 MPH WITH GUSTS TO 70 
  MPH. HIGHER GUSTS OF 80 TO 100 MPH MAY CONTINUE NEAR AND JUST 
  SOUTH OF CLARK. 

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED TO EXTREME BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 120. IN ADDITION...STRONG WINDS WILL CAUSE AREAS OF 
  BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY THROUGH 
  WEDNESDAY 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.

&&

$$

WYZ019-020-210900-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T0900Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
757 PM MST TUE DEC 20 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM MST WEDNESDAY...

* TIMING...HIGH WINDS WILL CONTINUE THROUGH EARLY WEDNESDAY 
  MORNING BEFORE A COLD FRONT TURNS THE WINDS NORTH AND SHUTS 
  OFF THE STRONGER WINDS. 

* WINDS...SOUTHWEST WIND 30 TO 40 MPH WITH GUSTS AROUND 60 MPH. 
  STRONGER GUSTS TO 70 MPH ARE POSSIBLE UNTIL MIDNIGHT IN THE 
  WINDIER SPOTS. 

* IMPACTS...IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 258 - WYOMING BOULEVARD. IN ADDITION...STRONG WINDS 
  WILL CAUSE AREAS LOCAL BLOWING AND DRIFTING SNOW AND LIMITED 
  VISIBILITY. 

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.

&&

$$
162 
WWUS75 KRIW 210915
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
215 AM MST WED DEC 21 2016


WYZ019-020-211015-
/O.EXP.KRIW.HW.W.0028.000000T0000Z-161221T0900Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
215 AM MST WED DEC 21 2016

...HIGH WIND WARNING HAS EXPIRED...

WINDS HAVE DIMINISHED ACROSS THE AREA EARLY THIS MORNING. 

$$

WYZ003-211500-
/O.CON.KRIW.HW.W.0028.000000T0000Z-161221T1500Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
215 AM MST WED DEC 21 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING...

* TIMING... HIGH WINDS WILL CONTINUE AT TIMES THROUGH 8 AM 
  WEDNESDAY. THERE WILL LIKELY BE TWO VERY STRONG HIGH WIND 
  EPISODES ONE THIS EVENING AND ANOTHER AFTER 2 AM OR SO UNTIL 
  SUNRISE. 

* WINDS...WINDS WEST TO NORTHWEST 35 TO 45 MPH WITH GUSTS TO 70 
  MPH. HIGHER GUSTS OF 80 TO 100 MPH MAY CONTINUE NEAR AND JUST 
  SOUTH OF CLARK. 

* IMPACTS...MAINLY TO TRANSPORTATION. ENHANCED TO EXTREME BLOW 
  OVER RISK FOR LIGHT AND HIGH PROFILE VEHICLES ESPECIALLY ALONG 
  HIGHWAY 120. IN ADDITION...STRONG WINDS WILL CAUSE AREAS OF 
  BLOWING AND DRIFTING SNOW AND LIMITED VISIBILITY THROUGH 
  WEDNESDAY 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.

&&

$$
103 
WWUS75 KRIW 211031
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
331 AM MST WED DEC 21 2016


WYZ003-211145-
/O.CAN.KRIW.HW.W.0028.000000T0000Z-161221T1500Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
331 AM MST WED DEC 21 2016

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH
WIND WARNING. 

A COLD FRONT HAS MOVED THROUGH THE AREA EARLY THIS MORNING, ENDING
THE THREAT OF HIGH WINDS. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 1:59 AM MSTHigh Wind WatchRIWPark12 hr

Nearby

High Wind Warnings in Wyoming, 2016Every high wind warning in 2016

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.