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Winter Weather Advisory


URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1107 PM MDT SAT APR 25 2015

IDZ010-262100-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-150426T2100Z/
EASTERN LEMHI COUNTY-
1107 PM MDT SAT APR 25 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT
SUNDAY.

* IMPACTS/TIMING: SNOW SHOWERS THIS EVENING MAY CAUSE BRIEF
  ACCUMULATIONS BUT THE MAIN FOCUS FOR SNOW WILL BE OVERNIGHT
  AND THROUGH SUNDAY MORNING.

* SNOW ACCUMULATIONS: 3 TO 5 INCHES ABOVE 5000 FEET. TRACE TO 1
  INCH BELOW 5000 FEET.

* LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY
  TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...
  LEMHI PASS...SALMON

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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1107 PM MDT SAT APR 25 2015

MTZ005-261600-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-150426T1600Z/
MISSOULA/BITTERROOT VALLEYS-
1107 PM MDT SAT APR 25 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MDT
SUNDAY ABOVE 4000 FEET...

A WINTER WEATHER ADVISORY ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
10 AM MDT SUNDAY.

* IMPACTS/TIMING: PRECIPITATION WILL INTENSIFY OVER THE
  BITTERROOT VALLEY TONIGHT...WITH RAIN EVENTUALLY MIXING WITH
  OR CHANGING TO SNOW FOR MANY ELEVATIONS... ESPECIALLY ABOVE
  4000 FEET. HEAVY WET SNOW COULD SNAP TREE LIMBS AND LEAD TO
  POWER OUTAGES AT THOSE HIGHER ELEVATIONS.

* SNOW ACCUMULATIONS: 4 TO 6 INCHES FOR LOCATIONS ON THE
  PERIPHERY OF THE VALLEY. SLUSHY 1 TO 3 INCHES POSSIBLE IN
  GRASSY AREAS AT THE VALLEY FLOOR ABOVE 3500 FEET... SUCH AS
  HAMILTON AND DARBY.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1107 PM MDT SAT APR 25 2015

MTZ007-262100-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-150426T2100Z/
BUTTE/BLACKFOOT REGION-
1107 PM MDT SAT APR 25 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT
SUNDAY.

* IMPACTS/TIMING: SNOW SHOWERS WILL DEVELOP DURING THE AFTERNOON
  WITH BRIEF ACCUMULATIONS ON MOUNTAIN PASSES THROUGH THE
  EVENING. THE MAIN FOCUS FOR SNOW WILL BE OVERNIGHT AND DURING
  SUNDAY MORNING WITH MODERATE TO HEAVY SNOW POSSIBLE FROM 6AM
  TO 9AM SUNDAY MORNING. TRAVEL OVER HOMESTAKE PASS WILL BECOME
  ESPECIALLY DIFFICULT DURING HEAVY SNOW SHOWERS SUNDAY MORNING.

* SNOW ACCUMULATIONS: 4 TO 6 INCHES OVER HOMESTAKE AND MACDONALD
  PASSES AND GEORGETOWN LAKE. 1 TO 3 INCHES FROM DEER LODGE TO
  BUTTE.

* LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY
  12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS

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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1107 PM MDT SAT APR 25 2015

MTZ006-262100-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-150426T2100Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
1107 PM MDT SAT APR 25 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT
SUNDAY.

* IMPACTS/TIMING: SNOW WILL ACCUMULATE ON LOLO AND LOST TRAIL
  PASSES OVERNIGHT AND THROUGH SUNDAY MORNING. SLUSHY SNOW
  ACCUMULATIONS MAY CREATE PERIODS OF DIFFICULT DRIVING
  CONDITIONS THROUGH SUNDAY MORNING.

* SNOW ACCUMULATIONS: 3 TO 6 INCHES.

* LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL
  PASS...LOLO PASS

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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
845 PM MDT SAT APR 25 2015

...HEAVY WET SNOW EXPECTED IN THE NORTHERN AND WESTERN MOUNTAINS
TONIGHT THROUGH SUNDAY...

.A LARGE STORM WILL SLOWLY MOVE THROUGH THE REGION TONIGHT AND
SUNDAY...DEPOSITING AS MUCH AS A FOOT OF VERY WET SNOW IN THE
MOUNTAINS. TEMPERATURES WILL BE ON THE WARM SIDE BUT QUICKLY
ACCUMULATING SNOW...ESPECIALLY LATE TONIGHT AND SUNDAY MORNING
COULD MAKE TRAVEL DIFFICULT OVER MOUNTAIN PASSES.

WYZ002-012-024-261100-
/O.CON.KRIW.WW.Y.0016.150426T0300Z-150427T0600Z/
ABSAROKA MOUNTAINS-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
845 PM MDT SAT APR 25 2015

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

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

* SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES. THE
  HEAVIEST SNOW IS EXPECTED TO OCCUR BETWEEN MIDNIGHT AND 9 AM
  SUNDAY.

* SNOW ACCUMULATIONS...6 TO 12 INCHES WITH THE MORE SIGNIFICANT
  ACCUMULATIONS EXPECTED ABOVE 8000 FEET.

* WIND AND VISIBILITY...EAST TO NORTHEAST WINDS OF 10 TO 25 MPH
  WILL DEVELOP SUNDAY WHICH COULD LEAD TO SOME DRIFTING SNOW.
  VISIBILITY WILL BE DETERMINED MOSTLY BY THE SNOWFALL RATE...
  DECREASING TO LESS THAN 1/2 MILE AT TIMES.

* IMPACTS...TETON AND TOGWOTEE MOUNTAIN PASSES WILL SEE SLUSHY TO
  SNOW PACKED CONDITIONS. THE WORST CONDITIONS ARE EXPECTED ON THE
  FREMONT COUNTY SIDE OF TOGWOTEE PASS...TOWARDS DUBOIS. TRAVELERS ARE
  URGED TO ALLOW EXTRA TIME FOR TRAVEL OVER MOUNTAIN PASSES LATER
  TONIGHT AND SUNDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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