Alert archive / Wyoming / High Wind Watches in 2012

High Wind Watch 5, NWS Riverton, WY

January 20, 2012Fremont County, Wyoming

NWS Riverton, WY issued this high wind watch at Jan 20, 2012, 7:39 PM MST for Fremont County, Wyoming. It took effect at Jan 21, 2012, 5:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued
Jan 20, 2012, 7:39 PM MST (02:39 UTC)
In effect from
Jan 21, 2012, 5:00 AM MST
Expired
Jan 21, 2012, 4:51 AM MST
In force
Issued by
NWS Riverton, WY

County Fremont County, WY

The radar

The Riverton/Lander radar (KRIW), 13 km from the middle of the area, began a volume at 02:42 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, 2.7 hours before the alert went out and 19 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 2012-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2012-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
1760 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
127 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.

149 
WWUS75 KRIW 210239
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
739 PM MST FRI JAN 20 2012

...HIGH WINDS RETURN TO PORTIONS OF CENTRAL WYOMING LATE TONIGHT
INTO SATURDAY...

.STRONG WINDS ALOFT COMBINED WITH A TIGHTENING SURFACE PRESSURE GRADIENT
WILL PRODUCE VERY STRONG WINDS ACROSS SOUTHEAST FREMONT COUNTY AND
MUCH OF NATRONA COUNTY BEGINNING LATE TONIGHT...AND LASTING
THROUGH THE DAY ON SATURDAY. HIGH WINDS MIGHT ALSO DEVELOP ALONG
THE LANDER FOOTHILLS SATURDAY MORNING.

WYZ019-211200-
/O.UPG.KRIW.HW.A.0004.120121T1200Z-120122T0000Z/
/O.NEW.KRIW.HW.W.0006.120121T0900Z-120122T0000Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
739 PM MST FRI JAN 20 2012

...HIGH WIND WARNING IN EFFECT FROM 2 AM TO 5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 5 PM MST SATURDAY. THE
HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...VERY STRONG WINDS WILL DEVELOP AFTER
  MIDNIGHT...AND CONTINUE THROUGH THE DAY ON SATURDAY...BEFORE
  WEAKENING LATE SATURDAY AFTERNOON.

* WIND...SOUTHWEST WINDS AROUND 40 MPH WITH GUSTS TO 65 MPH ARE
  EXPECTED.

* IMPACTS...LIGHT WEIGHT AND HIGH PROFILE VEHICLES MAY HAVE
  DIFFICULTY TRAVELING ALONG HIGHWAY 287 FROM BEAVER RIM TO
  JEFFREY CITY AND MUDDY GAP...AND ALSO ALONG HIGHWAY 220 FROM
  INDEPENDENCE ROCK TO ALCOVA.

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.

&&

$$

WYZ020-211200-
/O.UPG.KRIW.HW.A.0004.120121T1200Z-120122T0000Z/
/O.NEW.KRIW.HW.W.0006.120121T0900Z-120122T0000Z/
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITY OF...CASPER
739 PM MST FRI JAN 20 2012

...HIGH WIND WARNING IN EFFECT FROM 2 AM TO 5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 5 PM MST SATURDAY. THE
HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...SOUTHWEST WINDS WILL INCREASE RAPIDLY LATE
  TONIGHT...WITH VERY STRONG WINDS EXPECTED MUCH OF THE DAY ON
  SATURDAY...BEFORE WEAKENING LATE SATURDAY AFTERNOON.

* WIND...SOUTHWEST WIND OF 30 TO 45 MPH WILL BE COMMON...WITH
  GUSTS TO 65 MPH. FAVORED LOCATIONS FOR THE STRONGEST WINDS WILL
  BE ALONG WYOMING BOULEVARD ON THE SOUTH SIDE OF CASPER...AND
  NEAR THE COMMUNITY OF HILAND.

* IMPACTS...STRONG AND SUDDEN WIND GUSTS WILL CREATE HAZARDOUS
  DRIVING CONDITIONS. THIS INCLUDES HIGHWAY 20...26 FROM HILAND TO
  CASPER...HIGHWAY 220 FROM CASPER TO ALCOVA...AND ON WYOMING
  BOULEVARD AROUND CASPER...ESPECIALLY BETWEEN MILEPOSTS 11 AND 13.

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.

&&

$$

WYZ018-211200-
/O.NEW.KRIW.HW.A.0005.120121T1200Z-120121T2100Z/
LANDER FOOTHILLS-
INCLUDING THE CITY OF...LANDER
739 PM MST FRI JAN 20 2012

...HIGH WIND WATCH IN EFFECT FROM 5 AM MST SATURDAY THROUGH
SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM 5 AM MST SATURDAY THROUGH
SATURDAY AFTERNOON. 

* SUMMARY AND TIMING...STRONG WINDS MAY DEVELOP ACROSS THE LANDER
  FOOTHILLS SATURDAY MORNING AND LAST THROUGH EARLY SATURDAY
  AFTERNOON.

* WIND...SOUTHWEST 30 TO 40 MPH...WITH GUSTS UP TO 65 MPH.

* IMPACTS...TRAVEL ALONG HIGHWAY 287 BETWEEN LANDER AND FORT
  WASHAKIE MAY BECOME HAZARDOUS DUE TO THE VERY STRONG AND ERRATIC
  CROSS WINDS.

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.

&&

$$

21
1 follow-up statement
053 
WWUS75 KRIW 211151
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
451 AM MST SAT JAN 21 2012

...HIGH WINDS ACROSS PORTIONS OF CENTRAL WYOMING TODAY...

.STRONG WINDS ALOFT COMBINED WITH A TIGHTENING SURFACE PRESSURE
GRADIENT WILL PRODUCE VERY STRONG WINDS ACROSS SOUTHEAST FREMONT
COUNTY AND MUCH OF NATRONA COUNTY TODAY.

WYZ018-211300-
/O.CAN.KRIW.HW.A.0005.120121T1200Z-120121T2100Z/
LANDER FOOTHILLS-
INCLUDING THE CITY OF...LANDER
451 AM MST SAT JAN 21 2012

...HIGH WIND WATCH IS CANCELLED...

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

HIGH WINDS ARE NO LONGER EXPECTED ALONG THE LANDER FOOTHILLS.
OCCASIONAL SOUTHWEST WIND AT 25 TO 35 MPH WITH GUSTS NEAR 50 MPH
MAY OCCUR THROUGH THE MORNING...ESPECIALLY ALONG THE RIDGE TOPS
WEST OF LANDER.

$$

WYZ019-220000-
/O.CON.KRIW.HW.W.0006.000000T0000Z-120122T0000Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
451 AM MST SAT JAN 21 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...VERY STRONG WINDS WILL CONTINUE TO BECOME
  MORE WIDESPREAD THIS MORNING. 

* WIND...SOUTHWEST WINDS AROUND 40 MPH WITH GUSTS TO 65 MPH ARE
  EXPECTED. A WIND GUST OF 72 MPH WAS RECORDED AT A REMOTE SENSING
  SITE IN THE RATTLESNAKE RANGE...ELEVATION 6380 FEET...AT 4 AM.  

* IMPACTS...LIGHT WEIGHT AND HIGH PROFILE VEHICLES MAY HAVE
  DIFFICULTY TRAVELING ALONG HIGHWAY 287 FROM BEAVER RIM TO
  JEFFREY CITY AND MUDDY GAP...AND ALSO ALONG HIGHWAY 220 FROM
  INDEPENDENCE ROCK TO ALCOVA. HIGHWAY 287 FROM EAST OF JEFFREY
  CITY TO THE SPLIT ROCK AREA WILL BE ESPECIALLY SUSCEPTIBLE TO
  STRONG CROSSWIND GUSTS OVER 70 MPH.  

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.

&&

$$

WYZ020-220000-
/O.CON.KRIW.HW.W.0006.000000T0000Z-120122T0000Z/
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITY OF...CASPER
451 AM MST SAT JAN 21 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...STRONG SOUTHWEST WINDS ALOFT WILL PUSH DOWN
  TO THE SURFACE EARLY THIS MORNING. THESE STRONG WINDS ARE
  EXPECTED TO CONTINUE THROUGH MUCH OF THE DAY...BEFORE WEAKENING
  LATE THIS AFTERNOON.

* WIND...SOUTHWEST WIND OF 30 TO 45 MPH WILL BE COMMON...WITH 
  GUSTS TO 65 MPH. FAVORED LOCATIONS FOR THE STRONGEST WINDS 
  WILL BE ALONG WYOMING BOULEVARD ON THE SOUTH SIDE OF CASPER...
  AND NEAR THE COMMUNITY OF HILAND. 

* IMPACTS...STRONG AND SUDDEN WIND GUSTS WILL CREATE HAZARDOUS 
  DRIVING CONDITIONS. THIS INCLUDES HIGHWAY 20...26 FROM HILAND 
  TO CASPER...HIGHWAY 220 FROM CASPER TO ALCOVA...AND ON WYOMING 
  BOULEVARD AROUND CASPER...ESPECIALLY BETWEEN MILEPOSTS 11 AND 
  13. 

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.

&&

$$

AEM

What forecasters said that day

The local office's own words before this high wind watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Riverton, WY wrote its last area forecast discussion before this high wind watch went out at Jan 20, 4:03 PM MST, 3 hours 36 minutes earlier.

Area forecast discussion, Jan 20, 4:03 PM MST, 3 hours 36 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
403 PM MST FRI JAN 20 2012

.SHORT TERM...TONIGHT THROUGH MONDAY

ANOTHER FAST MOVING RATHER STRONG PACIFIC TROUGH WILL MOVE EAST
FROM THE EASTERN PACIFIC WITH INCREASING AREAS OF LIGHT SNOW
ACROSS THE WEST THIS EVENING. THE SNOWFALL ALONG WITH STRONGER
WINDS WILL PICK UP AROUND MIDNIGHT TONIGHT ACROSS THE WEST
SPREADING THROUGH THE SOUTHWEST THROUGH THE NIGHT AND EARLY
MORNING HOURS. WINTER STORM WARNINGS HAVE BEEN POSTED IN THE
WESTERN MOUNTAINS AND VALLEYS WITH WINTER WEATHER ADVISORIES IN
THE ABSAROKA MOUNTAINS AND EAST SLOPES OF THE WIND RIVER
MOUNTAINS. AS THE JET STREAM BRINGING THE PACIFIC MOISTURE AND
WIND TO THE WEST INCREASES AND SPREADS EAST...THERE WILL BE AN
INCREASING THREAT OF HIGH WINDS ACROSS SOUTHERN FREMONT COUNTY AND
NATRONA COUNTY INCLUDING THE CITY OF CASPER. A HIGH WIND WATCH HAS
BEEN POSTED. A BRIEF PERIOD OF HIGH WINDS MAY OCCUR IN THE CLARK
AREA LATE TONIGHT AND EARLY SATURDAY BUT THIS DOES NOT APPEAR TO
BE A LARGE AREA ON LONGER DURATION EVENT. THIS AREA WILL REQUIRE
MONITORING. SNOWFALL IN THE STAR VALLEY...SOUTHERN LINCOLN COUNTY
AND SWEETWATER COUNTY MAY MIX WITH OR CHANGE TO RAIN IN THE
AFTERNOON THEN CHANGE BACK TO SNOW. STRONG WINDS WITH BLOWING SNOW
MAY HAVE A SIGNIFICANT IMPACT ON TRAVEL ACROSS INTERSTATE 80 EVEN
THOUGH THE SNOWFALL AMOUNTS MAY NOT BE THAT SIGNIFICANT.
SOME LIGHT SNOW WITH LOW LEVEL SATURATED FLOW WILL KEEP SOME LIGHT
SNOWFALL OVER THE HIGHER MOUNTAINS. SNOWFALL SHOULD INCREASE AGAIN
OVER THE WEST SUNDAY NIGHT AND MONDAY. THE MODELS ARE NOT NEARLY
AS CONSISTENT AS THEY HAVE BEEN WITH THE DISTRIBUTION OF
PRECIPITATION WITH THIS SYSTEM SO THERE IS LOWER CONFIDENCE IN THE
AMOUNTS AND LOCATIONS OF SNOWFALL. TEMPERATURES IN THE EAST WILL
BE ON THE MILD SIDE WITH MORE STEADY TEMPERATURES AND LESS DIURNAL
SWING IN THE WEST.

.LONG TERM...MONDAY NIGHT THROUGH FRIDAY

WEAK TROUGH PASSES OVER THE REGION MONDAY NIGHT AND EARLY TUESDAY.
ENERGY LOOKS MORE SPLIT WITH THIS SYSTEM WITH MAIN ENERGY/DYNAMICS
WELL SOUTH OF WYOMING. REGARDLESS...LOW POPS WARRANTED EARLY TUESDAY
FOR MOST OF FORECAST AREA. MODELS INDICATE HEIGHTS BUILD ALOFT
LATER TUESDAY INTO TUESDAY NIGHT...RESULTING IN DECREASE OF CLOUDS.
TRANSITORY RIDGE THEN REPLACED BY MORE ZONAL FLOW BEGINNING WEDNESDAY.

WEST-NORTHWEST FLOW ALOFT LOOKS TO DOMINATE FROM WEDNESDAY INTO FRIDAY.
THIS SPELLS OUT GENERALLY DRY CONDITIONS EAST OF THE CONTINENTAL
DIVIDE WITH OCCASIONAL SNOW OVER THE WESTERN AND NORTHWEST
MOUNTAINS. THIS FLOW DOES NOT LOOK TO BE A MAJOR SNOW PRODUCER FOR
THE MOUNTAINS...BUT WILL WATCH THE NEXT FEW MODEL RUNS.

WITH THE EXCEPTION OF MONDAY NIGHT AND TUESDAY...TEMPERATURES ACROSS
WEST CENTRAL WYOMING SHOULD BE AT OR ABOVE NORMAL.

&&

.AVIATION.../00Z ISSUANCE/

STRONG WESTERLY FLOW WILL BRING ANOTHER MOIST SYSTEM TO THE
WESTERN MOUNTAINS TONIGHT AND SATURDAY. THE RESULT WILL BE LOWERING
AND THICKENING CLOUDS OVER FAR WESTERN WYOMING LATER THIS EVENING.
WIDESPREAD IFR CONDITIONS WITH INCREASING SNOWFALL AND LOWERING CIGS
WILL RETURN TO WESTERN WYOMING BY 09Z SATURDAY. MVFR CONDITIONS WITH
LOCAL IFR CONDITIONS WILL SPREAD EAST INTO SWEETWATER
COUNTY...INCLUDING KRKS...BY 12Z SATURDAY. GUSTY SOUTHWESTERLY WINDS
WILL CREATE AREAS OF BLOWING SNOW TONIGHT AND SATURDAY.

EAST OF THE DIVIDE...EXPECT VFR CONDITIONS TO PREVAIL.
HOWEVER...INCREASING MID AND HIGH LEVEL CLOUDS CAN BE EXPECTED.
STRONG SOUTHWEST WINDS WILL BLOW FROM THE RED DESERT TO KCPR...AND
WEST OF KCOD MOST OF SATURDAY.

&&

.FIRE WEATHER...

ANOTHER ROUND OF SNOW WILL MOVE INTO THE WEST AROUND MIDNIGHT AND
CONTINUE WITH STRONG WINDS TO PRODUCE MODERATE TO HEAVY SNOW AND
BLOWING SNOW ACROSS THE WESTERN MOUNTAINS SPREADING INTO THE LOWER
ELEVATIONS ACROSS THE WEST AND SOUTHWEST. HIGH WINDS WILL BE
POSSIBLE ALONG AND NEAR THE EAST SLOPES OF THE MOUNTAINS AND
THROUGH THE WIND CORRIDOR DURING THE DAY SATURDAY. TEMPERATURES
WILL BE MILD IN THE EAST WITH DOWNSLOPE WARMING AND REMAIN RATHER
STEADY IN THE WEST WITH THE PRECIPITATION...LOW CLOUDS AND STRONG
WINDS CAUSING MIXING. RELATIVE HUMIDITY WILL BE HIGH IN THE WEST
AND MODERATE IN THE EAST. POOR SMOKE DISPERSAL WITH VERY LOW
MIXING HEIGHTS WILL BE OVER THE WEST WITH AREAS OF FAIR TO GOOD
DISPERSAL IN THE EAST IN THE WINDIER AREAS.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
WINTER WEATHER ADVISORY FROM 11 PM THIS EVENING TO 11 PM MST
SATURDAY WYZ002-015-027>030.

HIGH WIND WATCH FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON
WYZ019-020.

WINTER STORM WARNING FROM 11 PM THIS EVENING TO 11 PM MST
SATURDAY WYZ001-012>014-023>025.

&&

SHORT TERM...C.BAKER
LONG TERM...KPL
AVIATION...KPL
FIRE WEATHER...C.BAKER
Hazardous weather outlook, Jan 20, 3:25 PM MST, 4 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
325 PM MST FRI JAN 20 2012

WYZ001>020-022>030-211100-
ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST-
BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS-
NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN-
NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS-
ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES-
SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN-
SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY-
TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
325 PM MST FRI JAN 20 2012

...WINTER STORM WARNING FOR THE WESTERN AND NORTHWEST MOUNTAINS
OF WYOMING TONIGHT THROUGH SATURDAY EVENING...

...WINTER WEATHER ADVISORY FOR SWEETWATER AND SOUTH LINCOLN
COUNTIES TONIGHT THROUGH SATURDAY EVENING...

...HIGH WIND WATCH FROM THE RED DESERT TO NATRONA COUNTY FROM
LATE TONIGHT THROUGH SATURDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TONIGHT

ANOTHER WINTER STORM APPROACHES THE WEST TONIGHT WITH HEAVY SNOW
AND STRONG WINDS EXPECTED LATE. THE TETON AND SALT RANGES MAY
RECEIVE ANOTHER FOOT OR TWO OF SNOW WITH THIS STORM SYSTEM. BLOWING
AND DRIFTING SNOW WILL BE COMMON.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SATURDAY...ANOTHER ROUND OF SIGNIFICANT SNOWFALL IS POSSIBLE ACROSS
THE WESTERN MOUNTAINS...SNOW COULD MIX WITH RAIN IN THE LOWER
ELEVATIONS BY SATURDAY AFTERNOON...LEADING TO SLICK ROADS. STRONG
WINDS ARE POSSIBLE ACROSS EASTERN FREMONT COUNTY AND NATRONA
COUNTY...AS WELL AS OVER HIGHER ELEVATIONS AND POSSIBLY EASTERN
SWEETWATER COUNTY. TRAVEL COULD BE DIFFICULT IN NUMEROUS AREAS ACROSS
THE STATE ON SATURDAY...ESPECIALLY FOR HIGH PROFILE VEHICLES AND
LIGHT TRAILERS. TRAVEL ALONG SOME MOUNTAIN PASSES COULD BECOME
IMPOSSIBLE.

TUESDAY NIGHT AND WEDNESDAY MORNING...STRONG WINDS ARE POSSIBLE IN
THE CODY FOOTHILLS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT SNOWFALL TOTALS AND ANY WIND DAMAGE
TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON. THANK YOU.

TEAM RIVERTON

In the hours before

Local storm report, Jan 20, 1:47 PM MST, 5 hours 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
0247 PM MDT FRI JAN 20 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0124 PM     SNOW             MADISON RANGER STATION  44.64N 110.86W
01/19/2012  M1.00 INCHES     YELLOWSTONE        WY   PARK/FOREST SRVC

0124 PM     SNOW             TOWER RANGER STATION    44.89N 110.39W
01/19/2012  M1.30 INCHES     YELLOWSTONE        WY   PARK/FOREST SRVC

0128 PM     HEAVY SNOW       MERNA                   42.94N 110.28W
01/19/2012  M14.00 INCHES    SUBLETTE           WY   PUBLIC

0129 PM     HEAVY SNOW       STAR VALLEY RANCH       42.98N 110.95W
01/19/2012  M13.00 INCHES    LINCOLN            WY   TRAINED SPOTTER

0142 PM     HEAVY SNOW       DANIEL FISH HATCHERY    42.92N 110.12W
01/19/2012  M6.50 INCHES     SUBLETTE           WY   CO-OP OBSERVER

0146 PM     HEAVY SNOW       6 S JACKSON             43.41N 110.77W
01/19/2012  M24.00 INCHES    TETON              WY   TRAINED SPOTTER

0146 PM     HEAVY SNOW       6 N JACKSON             43.55N 110.72W
01/19/2012  M10.00 INCHES    TETON              WY   TRAINED SPOTTER

0147 PM     HEAVY SNOW       KELLY                   43.62N 110.62W
01/19/2012  M8.00 INCHES     TETON              WY   TRAINED SPOTTER

0147 PM     HEAVY SNOW       HOBACK JUNCTION         43.32N 110.73W
01/19/2012  M24.00 INCHES    TETON              WY   PUBLIC

0149 PM     SNOW             2.5 SE BOULDER          42.71N 109.69W
01/19/2012  M1.00 INCHES     SUBLETTE           WY   CO-OP OBSERVER

            BOULDER REARING STATION

0149 PM     SNOW             DUBOIS                  43.53N 109.65W
01/19/2012  M1.50 INCHES     FREMONT            WY   CO-OP OBSERVER

0150 PM     SNOW             LA BARGE                42.26N 110.19W
01/19/2012  M0.30 INCHES     LINCOLN            WY   POST OFFICE

0155 PM     HEAVY SNOW       5 NW JACKSON            43.53N 110.82W
01/19/2012  M11.50 INCHES    TETON              WY   COCORAHS

0156 PM     SNOW             13 SE PINEDALE          42.75N 109.66W
01/19/2012  M2.60 INCHES     SUBLETTE           WY   COCORAHS

0157 PM     SNOW             1 WNW CODY              44.52N 109.07W
01/19/2012  M0.80 INCHES     PARK               WY   COCORAHS

0157 PM     SNOW             2 WSW CODY              44.51N 109.09W
01/19/2012  M1.00 INCHES     PARK               WY   COCORAHS

0157 PM     SNOW             4 SE CODY               44.48N 108.99W
01/19/2012  M0.30 INCHES     PARK               WY   COCORAHS

0157 PM     SNOW             5 ESE CODY              44.49N 108.95W
01/19/2012  M0.20 INCHES     PARK               WY   COCORAHS

0236 PM     HEAVY SNOW       14 WSW BUFFALO          44.26N 106.98W
01/19/2012  E9.00 INCHES     JOHNSON            WY   MESONET

            HANSEN SAWMILL SNOTEL

0236 PM     HEAVY SNOW       21 SW BARNUM            43.47N 107.24W
01/19/2012  E6.00 INCHES     NATRONA            WY   MESONET

            GRAVE SPRING SNOTEL

0236 PM     SNOW             13 W BARNUM             43.63N 107.18W
01/19/2012  E2.00 INCHES     WASHAKIE           WY   MESONET

            MIDDLE POWDER SNOTEL

0237 PM     HEAVY SNOW       40 W THERMOPOLIS        43.66N 109.01W
01/19/2012  E9.00 INCHES     HOT SPRINGS        WY   MESONET

            OWL CREEK SNOTEL

1110 PM     HEAVY SNOW       23 NW DUBOIS            43.73N 110.01W
01/19/2012  E17.00 INCHES    FREMONT            WY   PARK/FOREST SRVC

            BROOKS LAKE LODGE

1110 PM     HEAVY SNOW       5 NE ALTA               43.79N 110.94W
01/19/2012  E18.00 INCHES    TETON              WY   PARK/FOREST SRVC

            GRAND TARGHEE-CHIEF JOSEPH

1110 PM     HEAVY SNOW       9.9 NNW JACKSON         43.60N 110.85W
01/19/2012  M30.00 INCHES    TETON              WY   PARK/FOREST SRVC

            JACKSON HOLE-RAYMER

1110 PM     HEAVY SNOW       9.4 NNW JACKSON         43.59N 110.87W
01/19/2012  M37.00 INCHES    TETON              WY   PARK/FOREST SRVC

            JACKSON HOLE-RENDEZVOUS BOWL

1111 PM     HEAVY SNOW       TOGWOTEE MOUNTAIN LODGE 43.82N 110.18W
01/19/2012  E16.00 INCHES    TETON              WY   PARK/FOREST SRVC

1112 PM     HEAVY SNOW       8.6 NNW JACKSON         43.58N 110.85W
01/19/2012  M12.00 INCHES    TETON              WY   PARK/FOREST SRVC

            JACKSON HOLE-BASE

1112 PM     HEAVY SNOW       9.3 NNW JACKSON         43.59N 110.84W
01/19/2012  M27.00 INCHES    TETON              WY   PARK/FOREST SRVC

            JACKSON HOLE-MID

1112 PM     HEAVY SNOW       17.2 E THAYNE           42.97N 110.61W
01/19/2012  E18.00 INCHES    LINCOLN            WY   PARK/FOREST SRVC

            BLIND BULL SUMMIT

1112 PM     HEAVY SNOW       14.3 E THAYNE           42.87N 110.71W
01/19/2012  E18.00 INCHES    LINCOLN            WY   PARK/FOREST SRVC

            BOX Y RANCH

1114 PM     HEAVY SNOW       1 S JACKSON             43.46N 110.76W
01/19/2012  M28.00 INCHES    TETON              WY   PUBLIC

            SNOW KING SKI AREA

1115 PM     HEAVY SNOW       3 NW BONDURANT          43.23N 110.43W
01/19/2012  M34.00 INCHES    SUBLETTE           WY   PUBLIC

1118 PM     HEAVY SNOW       CORA                    42.96N 109.99W
01/19/2012  M9.00 INCHES     SUBLETTE           WY   CO-OP OBSERVER

1119 PM     HEAVY SNOW       JACKSON                 43.47N 110.75W
01/19/2012  M17.50 INCHES    TETON              WY   PUBLIC

1119 PM     HEAVY SNOW       JACKSON                 43.47N 110.75W
01/19/2012  M11.00 INCHES    TETON              WY   TRAINED SPOTTER

1119 PM     HEAVY SNOW       JACKSON                 43.48N 110.75W
01/19/2012  M9.00 INCHES     TETON              WY   TRAINED SPOTTER

1120 PM     HEAVY SNOW       JACKSON                 43.47N 110.76W
01/19/2012  M12.00 INCHES    TETON              WY   TRAINED SPOTTER

0855 AM     HEAVY SNOW       1 W SMOOT               42.62N 110.93W
01/20/2012  M8.50 INCHES     LINCOLN            WY   PUBLIC

0927 AM     HEAVY SNOW       5 NNE THAYNE            42.99N 110.96W
01/20/2012  M19.00 INCHES    LINCOLN            WY   PUBLIC

            1.74 INCHES LIQUID

0929 AM     HEAVY SNOW       1 SE THAYNE             42.90N 110.98W
01/20/2012  M14.00 INCHES    LINCOLN            WY   PUBLIC

0933 AM     SNOW             1 SW KEMMERER           41.78N 110.56W
01/20/2012  M1.00 INCHES     LINCOLN            WY   TRAINED SPOTTER

1045 AM     HEAVY SNOW       AFTON                   42.71N 110.92W
01/20/2012  M7.50 INCHES     LINCOLN            WY   TRAINED SPOTTER

1143 AM     SNOW             KEMMERER                41.79N 110.54W
01/20/2012  M3.50 INCHES     LINCOLN            WY   TRAINED SPOTTER

0132 PM     HEAVY SNOW       4 SSW JACKSON           43.43N 110.79W
01/20/2012  M19.40 INCHES    TETON              WY   COCORAHS

0132 PM     HEAVY SNOW       5 SSE SMOOT             42.55N 110.88W
01/20/2012  M14.00 INCHES    LINCOLN            WY   COCORAHS

0132 PM     HEAVY SNOW       3 SSW WILSON            43.46N 110.89W
01/20/2012  M28.00 INCHES    TETON              WY   COCORAHS

0136 PM     HEAVY SNOW       14 NW PINEDALE          42.98N 110.08W
01/20/2012  M9.60 INCHES     SUBLETTE           WY   COCORAHS

0136 PM     HEAVY SNOW       2 SW TETON VILLAGE      43.59N 110.79W
01/20/2012  M21.00 INCHES    TETON              WY   COCORAHS

0138 PM     HEAVY SNOW       12 NE JACKSON           43.62N 110.62W
01/20/2012  M17.50 INCHES    TETON              WY   COCORAHS

0139 PM     HEAVY SNOW       4 SSW JACKSON           43.42N 110.78W
01/20/2012  M19.40 INCHES    TETON              WY   COCORAHS

0156 PM     HEAVY SNOW       AFTON                   42.72N 110.93W
01/20/2012  M6.90 INCHES     LINCOLN            WY   LAW ENFORCEMENT

0159 PM     HEAVY SNOW       BONDURANT               43.22N 110.43W
01/20/2012  M24.60 INCHES    SUBLETTE           WY   CO-OP OBSERVER

0200 PM     HEAVY SNOW       1 NNW ALTA              43.77N 111.03W
01/20/2012  M10.00 INCHES    TETON              WY   CO-OP OBSERVER

0200 PM     HEAVY SNOW       3 SE BEDFORD            42.87N 110.90W
01/20/2012  M13.00 INCHES    LINCOLN            WY   CO-OP OBSERVER

0202 PM     HEAVY SNOW       EAST ENTRANCE           44.48N 110.00W
01/20/2012  M8.00 INCHES     PARK               WY   CO-OP OBSERVER

            YELLOWSTONE EAST ENTRANCE

0203 PM     HEAVY SNOW       PAHASKA                 44.50N 109.96W
01/20/2012  M13.00 INCHES    PARK               WY   CO-OP OBSERVER

0207 PM     HEAVY SNOW       GRAND TARGHEE SKI AREA  43.75N 110.91W
01/20/2012  M25.00 INCHES    TETON              WY   PUBLIC

0208 PM     SNOW             AFTON                   42.08N 110.95W
01/20/2012  M0.50 INCHES     LINCOLN            WY   EMERGENCY MNGR

0211 PM     HEAVY SNOW       ALPINE                  43.15N 111.00W
01/20/2012  M18.00 INCHES    LINCOLN            WY   TRAINED SPOTTER

0212 PM     HEAVY SNOW       CANYON                  44.73N 110.49W
01/20/2012  M9.00 INCHES     PARK               WY   PARK/FOREST SRVC

            CANYON RANGER STATION

0212 PM     SNOW             LAKE                    44.55N 110.39W
01/20/2012  M2.00 INCHES     TETON              WY   PARK/FOREST SRVC

            LAKE RANGER STATION

0213 PM     SNOW             LAMAR RANGER STATION    44.86N 110.16W
01/20/2012  E0.20 INCHES     PARK               WY   MESONET

0214 PM     HEAVY SNOW       SNAKE RIVER RANGER STAT 44.13N 110.66W
01/20/2012  M20.00 INCHES    YELLOWSTONE        WY   PARK/FOREST SRVC

0214 PM     HEAVY SNOW       EAST ENTRANCE           44.49N 110.00W
01/20/2012  M8.00 INCHES     PARK               WY   PARK/FOREST SRVC

            EAST ENTRANCE RANGER STATION

0215 PM     HEAVY SNOW       OLD FAITHFUL            44.45N 110.83W
01/20/2012  M11.00 INCHES    TETON              WY   CO-OP OBSERVER

            OLD FAITHFUL RANGER STATION

0215 PM     SNOW             TOWER FALLS RANGER STAT 44.91N 110.42W
01/20/2012  M2.00 INCHES     YELLOWSTONE        WY   CO-OP OBSERVER

0218 PM     HEAVY SNOW       1 WSW CANYON            44.72N 110.51W
01/20/2012  E9.00 INCHES     YELLOWSTONE        WY   MESONET

            CANYON SNOTEL

0218 PM     HEAVY SNOW       5 N SOUTH ENTRANCE      44.21N 110.67W
01/20/2012  E55.00 INCHES    YELLOWSTONE        WY   MESONET

            LEWIS LAKE DIVIDE SNOTEL

0218 PM     HEAVY SNOW       16 N PAHASKA            44.73N 109.91W
01/20/2012  E24.00 INCHES    YELLOWSTONE        WY   MESONET

            PARKER PEAK SNOTEL

0218 PM     HEAVY SNOW       10 W PAHASKA            44.48N 110.16W
01/20/2012  E15.00 INCHES    YELLOWSTONE        WY   MESONET

            SYLVAN LAKE SNOTEL

0218 PM     HEAVY SNOW       4 WSW PAHASKA           44.48N 110.04W
01/20/2012  E15.00 INCHES    YELLOWSTONE        WY   MESONET

            SYLVAN ROAD SNOTEL

0218 PM     HEAVY SNOW       14 ESE OLD FAITHFUL     44.37N 110.58W
01/20/2012  E20.00 INCHES    YELLOWSTONE        WY   MESONET

            THUMB DIVIDE SNOTEL

0219 PM     HEAVY SNOW       25 NE MORAN JUNCTION    44.15N 110.22W
01/20/2012  E46.00 INCHES    YELLOWSTONE        WY   MESONET

            TWO OCEAN PLATEAU SNOTEL

0219 PM     HEAVY SNOW       21 W CLARK              44.94N 109.57W
01/20/2012  E35.00 INCHES    PARK               WY   MESONET

            BEARTOOTH LAKE SNOTEL

0219 PM     HEAVY SNOW       19 WSW WAPITI           44.38N 109.79W
01/20/2012  E30.00 INCHES    PARK               WY   MESONET

            BLACKWATER SNOTEL

0219 PM     HEAVY SNOW       11 N DUBOIS             43.70N 109.67W
01/20/2012  E34.00 INCHES    FREMONT            WY   MESONET

            BURROUGHS CREEK SNOTEL

0219 PM     HEAVY SNOW       16 NE DUBOIS            43.67N 109.37W
01/20/2012  E21.00 INCHES    FREMONT            WY   MESONET

            CASTLE CREEK SNOTEL

0219 PM     HEAVY SNOW       14 NE PAHASKA           44.65N 109.78W
01/20/2012  E38.00 INCHES    PARK               WY   MESONET

            EVENING STAR SNOTEL

0219 PM     HEAVY SNOW       30 SW MEETEETSE         43.86N 109.32W
01/20/2012  E16.00 INCHES    PARK               WY   MESONET

            KIRWIN SNOTEL

0220 PM     HEAVY SNOW       18 SW CODY              44.30N 109.24W
01/20/2012  E8.00 INCHES     PARK               WY   MESONET

            MARQUETTE SNOTEL

0221 PM     HEAVY SNOW       26 WSW CLARK            44.80N 109.66W
01/20/2012  E21.00 INCHES    PARK               WY   MESONET

            WOLVERINE SNOTEL

0221 PM     HEAVY SNOW       56 SW CODY              43.93N 109.82W
01/20/2012  E31.00 INCHES    PARK               WY   MESONET

            YOUNTS PEAK SNOTEL

0221 PM     HEAVY SNOW       28 E LOVELL             44.80N 107.84W
01/20/2012  E6.00 INCHES     BIG HORN           WY   MESONET

            BALD MOUNTAIN SNOTEL

0221 PM     HEAVY SNOW       14 NE SHELL             44.68N 107.58W
01/20/2012  E14.00 INCHES    BIG HORN           WY   MESONET

            BONE SPRINGS DIVIDE SNOTEL

0222 PM     HEAVY SNOW       18 E SHELL              44.50N 107.43W
01/20/2012  E9.00 INCHES     BIG HORN           WY   MESONET

            SHELL CREEK SNOTEL

0222 PM     SNOW             14 WNW MAYOWORTH        43.89N 107.06W
01/20/2012  E3.00 INCHES     JOHNSON            WY   MESONET

            BEAR TRAP MEADOW SNOTEL

0222 PM     HEAVY SNOW       17 W BUFFALO            44.40N 107.06W
01/20/2012  E13.00 INCHES    JOHNSON            WY   MESONET

            CLOUD PEAK RESERVOIR SNOTEL

0223 PM     HEAVY SNOW       27 NW BUFFALO           44.54N 107.17W
01/20/2012  E9.00 INCHES     JOHNSON            WY   MESONET

            LITTLE GOOSE SNOTEL

0223 PM     HEAVY SNOW       16 W BUFFALO            44.34N 107.02W
01/20/2012  E12.00 INCHES    JOHNSON            WY   MESONET

            SOLDIER PARK SNOTEL

0223 PM     HEAVY SNOW       8 NNE MORAN JUNCTION    43.95N 110.45W
01/20/2012  E44.00 INCHES    TETON              WY   MESONET

            BASE CAMP SNOTEL

0223 PM     HEAVY SNOW       6 ENE ALTA              43.78N 110.93W
01/20/2012  E42.00 INCHES    TETON              WY   MESONET

            GRAND TARGHEE SNOTEL

0223 PM     HEAVY SNOW       10 N BONDURANT          43.34N 110.43W
01/20/2012  E33.00 INCHES    TETON              WY   MESONET

            GRANITE CREEK SNOTEL

0224 PM     HEAVY SNOW       8 W SOUTH ENTRANCE      44.13N 110.83W
01/20/2012  E72.00 INCHES    TETON              WY   MESONET

            GRASSY LAKE SNOTEL

0224 PM     HEAVY SNOW       20 NE BONDURANT         43.39N 110.13W
01/20/2012  E19.00 INCHES    TETON              WY   MESONET

            GROS VENTRE SUMMIT SNOTEL

0224 PM     HEAVY SNOW       14 E BONDURANT          43.17N 110.14W
01/20/2012  E32.00 INCHES    SUBLETTE           WY   MESONET

            LOOMIS PARK SNOTEL

0224 PM     HEAVY SNOW       8 WNW JACKSON           43.52N 110.91W
01/20/2012  E59.00 INCHES    TETON              WY   MESONET

            PHILLIPS BENCH SNOTEL

0224 PM     HEAVY SNOW       SOUTH ENTRANCE          44.13N 110.67W
01/20/2012  E37.00 INCHES    TETON              WY   MESONET

            SNAKE RIVER STN SNOTEL

0224 PM     HEAVY SNOW       25 NW DUBOIS            43.75N 110.06W
01/20/2012  E33.00 INCHES    TETON              WY   MESONET

            TOGWOTEE PASS SNOTEL

0225 PM     HEAVY SNOW       24 ESE BOULDER          42.65N 109.26W
01/20/2012  E33.00 INCHES    SUBLETTE           WY   MESONET

            BIG SANDY OPENING SNOTEL

0225 PM     HEAVY SNOW       12 NNE PINEDALE         43.01N 109.76W
01/20/2012  E25.00 INCHES    SUBLETTE           WY   MESONET

            ELKHART PARK G.S. SNOTEL

0225 PM     HEAVY SNOW       16 SW DUBOIS            43.38N 109.88W
01/20/2012  E23.00 INCHES    SUBLETTE           WY   MESONET

            GUNSITE PASS SNOTEL

0225 PM     HEAVY SNOW       22 N CORA               43.25N 110.02W
01/20/2012  E39.00 INCHES    SUBLETTE           WY   MESONET

            KENDALL RANGER STATION SNOTEL

0225 PM     HEAVY SNOW       25 SW LANDER            42.58N 109.08W
01/20/2012  E33.00 INCHES    SUBLETTE           WY   MESONET

            LARSEN CREEK SNOTEL

0225 PM     HEAVY SNOW       12 N CORA               43.11N 109.95W
01/20/2012  E26.00 INCHES    SUBLETTE           WY   MESONET

            NEW FORK LAKE SNOTEL

0225 PM     HEAVY SNOW       16 E BOULDER            42.71N 109.41W
01/20/2012  E28.00 INCHES    SUBLETTE           WY   MESONET

            POCKET CREEK SNOTEL

0226 PM     HEAVY SNOW       14 W CROWHEART          43.28N 109.45W
01/20/2012  E12.00 INCHES    FREMONT            WY   MESONET

            COLD SPRINGS SNOTEL

0226 PM     HEAVY SNOW       19 SSW LANDER           42.59N 108.90W
01/20/2012  E9.00 INCHES     FREMONT            WY   MESONET

            DEER PARK SNOTEL

0226 PM     HEAVY SNOW       18 W LANDER             42.87N 109.09W
01/20/2012  E10.00 INCHES    FREMONT            WY   MESONET

            HOBBS PARK SNOTEL

0226 PM     HEAVY SNOW       6 WSW DUBOIS            43.50N 109.75W
01/20/2012  E9.00 INCHES     FREMONT            WY   MESONET

            LITTLE WARM SNOTEL

0226 PM     HEAVY SNOW       7 NW ATLANTIC CITY      42.57N 108.84W
01/20/2012  E21.00 INCHES    FREMONT            WY   MESONET

            SOUTH PASS SNOTEL

0226 PM     SNOW             26 NW LANDER            43.03N 109.17W
01/20/2012  E3.00 INCHES     FREMONT            WY   MESONET

            ST. LAWRENCE ALT SNOTEL

0226 PM     HEAVY SNOW       12 SW LANDER            42.70N 108.90W
01/20/2012  E7.00 INCHES     FREMONT            WY   MESONET

            TOWNSEND CREEK SNOTEL

0227 PM     HEAVY SNOW       19 SW BONDURANT         42.96N 110.61W
01/20/2012  E54.00 INCHES    LINCOLN            WY   MESONET

            BLIND BULL SUMMIT SNOTEL

0227 PM     HEAVY SNOW       8 SE AFTON              42.65N 110.81W
01/20/2012  E35.00 INCHES    LINCOLN            WY   MESONET

            COTTONWOOD CREEK SNOTEL

0227 PM     HEAVY SNOW       26 N KEMMERER           42.15N 110.68W
01/20/2012  E22.00 INCHES    LINCOLN            WY   MESONET

            HAMS FORK SNOTEL

0228 PM     HEAVY SNOW       36 N KEMMERER           42.30N 110.68W
01/20/2012  E44.00 INCHES    LINCOLN            WY   MESONET

            INDIAN CREEK SNOTEL

0228 PM     HEAVY SNOW       15 NNE COKEVILLE        42.27N 110.81W
01/20/2012  E32.00 INCHES    LINCOLN            WY   MESONET

            KELLEY RANGER STATION SNOTEL

0228 PM     HEAVY SNOW       15 S AFTON              42.51N 110.91W
01/20/2012  E28.00 INCHES    LINCOLN            WY   MESONET

            SALT RIVER SUMMIT SNOTEL

0228 PM     HEAVY SNOW       21 W BIG PINEY          42.49N 110.53W
01/20/2012  E21.00 INCHES    SUBLETTE           WY   MESONET

            SNIDER BASIN SNOTEL

0229 PM     HEAVY SNOW       19 SE AFTON             42.53N 110.66W
01/20/2012  E43.00 INCHES    LINCOLN            WY   MESONET

            SPRING CREEK DIVIDE SNOTEL

0229 PM     HEAVY SNOW       17 E AFTON              42.76N 110.59W
01/20/2012  E43.00 INCHES    SUBLETTE           WY   MESONET

            TRIPLE PEAK SNOTEL

0229 PM     HEAVY SNOW       8 NE AFTON              42.82N 110.84W
01/20/2012  E49.00 INCHES    LINCOLN            WY   MESONET

            WILLOW CREEK SNOTEL

0229 PM     HEAVY SNOW       12 ESE BONDURANT        43.13N 110.20W
01/20/2012  E26.00 INCHES    SUBLETTE           WY   MESONET

            EAST RIM DIVIDE SNOTEL

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 20, 7:39 PM MSTHigh Wind WarningRIWFremont, Natrona, Sweetwater23 hr

Nearby

High Wind Watches in Wyoming, 2012Every high wind watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.