Winter Weather Warnings / Watches / Advisories
Issued by NWS Riverton, WY

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WWUS45 KRIW 240338
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
938 PM MDT SAT APR 23 2016

...SNOW ACROSS THE WESTERN AND NORTHERN MOUNTAINS TONIGHT AND
SUNDAY...

.AN UPPER LEVEL LOW PRESSURE SYSTEM OVER SOUTHWEST WYOMING LATE
SATURDAY EVENING WILL CONTINUE TO DRIFT EAST ACROSS SOUTHERN
WYOMING OUT INTO THE HIGH PLAINS ON SUNDAY. A COOL AND UNSTABLE
NORTHWEST FLOW WILL BRING NUMEROUS SNOW SHOWERS ACROSS THE WESTERN
MOUNTAINS THROUGH SUNDAY MORNING...TAPERING OFF SUNDAY AFTERNOON.
AN AREA OF MODERATE TO LOCALLY HEAVY SNOWFALL IS EXPECTED TO
DEVELOP ACROSS THE BIGHORN RANGE SUNDAY MORNING AND CONTINUE INTO
SUNDAY AFTERNOON...BEFORE TAPERING OFF SUNDAY EVENING.

WYZ001-241200-
/O.CON.KRIW.WW.Y.0021.000000T0000Z-160424T1800Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
938 PM MDT SAT APR 23 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
SUNDAY...

* TIMING...SNOWFALL WILL INCREASE OVERNIGHT WITH THE HEAVIEST SNOW
  EXPECTED UNTIL AROUND SUNRISE SUNDAY.  SNOWFALL WILL WEAKEN BY
  SUNDAY AFTERNOON.

* SNOWFALL...THROUGH SUNDAY MORNING 5 TO 8 INCHES IS ANTICIPATED
  FOR THOSE AREAS ABOVE 8000 FEET IN ELEVATION. LESSER AMOUNTS
  OF 4 TO 6 INCHES WILL BE POSSIBLE OVER THE LOWER ELEVATIONS.

* MAIN IMPACT...SNOWFALL WILL PRODUCE SLICK AND ICY ROAD
  CONDITIONS THROUGH YELLOWSTONE TONIGHT...WITH ADVERSE TRAVEL
  CONDITIONS LASTING THROUGH SUNDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WYZ012-241200-
/O.CON.KRIW.WW.Y.0021.000000T0000Z-160424T1800Z/
TETON AND GROS VENTRE MOUNTAINS-
938 PM MDT SAT APR 23 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
SUNDAY...

* TIMING...SNOWFALL WILL INCREASE OVERNIGHT WITH THE HEAVIEST SNOW
  EXPECTED UNTIL AROUND SUNRISE SUNDAY. SNOWFALL WILL WEAKEN BY
  SUNDAY AFTERNOON.

* SNOWFALL...5 TO 9 INCHES IS EXPECTED OVER THE TETON MOUNTAINS
  AND THE TOGWOTEE PASS AREA. LOWER AMOUNTS EXPECTED BELOW 8500
  FEET.

* MAIN IMPACT...SNOWFALL PRODUCE SLICK AND ICY ROAD CONDITIONS
  ACROSS THE IMPACTED AREA THIS EVENING...INCLUDING TETON AND
  TOGWOTEE PASSES. MOTORISTS SHOULD CHECK CURRENT ROAD
  CONDITIONS BEFORE TRAVELING THIS EVENING THROUGH SUNDAY
  MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WYZ008-009-241200-
/O.CON.KRIW.WW.Y.0021.160424T0600Z-160425T0600Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
938 PM MDT SAT APR 23 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
SUNDAY NIGHT...

* TIMING...SNOWFALL WILL INCREASE OVERNIGHT WITH THE HEAVIEST
  SNOWFALL EXPECTED THROUGH THE DAY SUNDAY. SNOWFALL WILL
  GRADUALLY TAPER OFF SUNDAY EVENING.

* SNOWFALL...6 TO 12 INCHES IS EXPECTED OVER THE BIGHORN
  MOUNTAINS WITH LOCALLY HIGHER AMOUNTS TO 15 INCHES POSSIBLE ON
  CLOUD PEAK.

* MAIN IMPACT...SNOWFALL WILL MAKE ROAD CONDITIONS SLICK AND ICY
  OVER POWDER RIVER PASS. MOTORISTS SHOULD CHECK CURRENT ROAD
  CONDITIONS BEFORE TRAVELING THIS EVENING THROUGH SUNDAY
  EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WYZ002-241200-
/O.CON.KRIW.WW.Y.0021.160424T0600Z-160425T0600Z/
ABSAROKA MOUNTAINS-
938 PM MDT SAT APR 23 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
SUNDAY NIGHT...

* TIMING...SNOWFALL WILL INCREASE OVERNIGHT WITH THE HEAVIEST SNOW
  EXPECTED SUNDAY MORNING. ISOLATED THUNDERSTORMS MAY PRODUCE
  LOCALLY HEAVY SNOW SHOWERS UNTIL AROUND MIDNIGHT TONIGHT.
  SNOWFALL WILL GRADUALLY TAPER OFF SUNDAY EVENING.

* SNOWFALL...5 TO 9 INCHES IS EXPECTED OVER THE ABSAROKA
  MOUNTAINS WITH LOCALLY HIGHER AMOUNTS TO 12 INCHES POSSIBLE
  AROUND THE EAST ENTRANCE TO YELLOWSTONE NATIONAL PARK.

* MAIN IMPACT...SNOWFALL WILL PRODUCE SLICK AND ICY ROAD
  CONDITIONS ACROSS THE IMPACTED AREA LATE THIS EVENING.
  MOTORISTS SHOULD CHECK CURRENT ROAD CONDITIONS BEFORE
  TRAVELING THROUGH SUNDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WYZ024-241200-
/O.CON.KRIW.WW.Y.0021.000000T0000Z-160424T1800Z/
SALT RIVER AND WYOMING RANGES-
938 PM MDT SAT APR 23 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
SUNDAY...

* TIMING...SNOWFALL WILL INCREASE OVERNIGHT WITH THE HEAVIEST SNOW
  EXPECTED UNTIL AROUND SUNRISE SUNDAY. SNOWFALL WILL WEAKEN BY
  SUNDAY AFTERNOON.

* SNOWFALL...4 TO 8 INCHES IS EXPECTED OVER THE WYOMING AND SALT
  RIVER RANGES. LESSER AMOUNTS EXPECTED BELOW 8500 FEET.

* MAIN IMPACT...SNOWFALL WILL PRODUCE SLICK AND ICY ROAD
  CONDITIONS ACROSS THE IMPACTED AREA THIS EVENING...INCLUDING
  SALT RIVER PASS. MOTORISTS SHOULD CHECK CURRENT ROAD
  CONDITIONS BEFORE TRAVELING THIS EVENING THROUGH SUNDAY
  MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$



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