Montana Department of Transportation

Main Content

Accidents and Incidents Report

Winter Storm Warning/Watch/Advisory

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Note:  Be sure to pay close attention to the date and time of each warning.    
This document contains all warnings in the state so please read the
complete document.
 
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WWUS45 KMSO 231055
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
455 AM MDT SAT AUG 23 2014

MTZ002-043-231800-
/O.CON.KMSO.WW.Y.0052.000000T0000Z-140823T1800Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
455 AM MDT SAT AUG 23 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY
ABOVE 6500 FEET...

A WINTER WEATHER ADVISORY ABOVE 6500 FEET REMAINS IN EFFECT UNTIL
NOON MDT TODAY. 

* IMPACTS/TIMING: AN UNSEASONABLY COLD AIR MASS AND PLENTY OF
  MOISTURE WILL COMBINE TO DRIVE THE SNOW LEVEL DOWN TO BETWEEN
  6500 AND 7000 FEET. 

* IMPACTS: PERSONS HIKING, TRAVELING, OR RECREATING BETWEEN 5000
  FEET AND 6500 FEET SHOULD BE PREPARED FOR A VERY COLD
  RAIN...WHICH, WHEN COMBINED WITH WINDS OF 10 TO 20 MPH AND AIR
  TEMPERATURES IN THE 30S AND 40S, COULD HEIGHTEN HYPOTHERMIA
  CONCERNS.

* SNOW ACCUMULATIONS: 1 TO 3 INCHES BETWEEN 6500 FEET AND 7000 
  FEET...INCLUDING LOGAN PASS. 2 TO 5 INCHES ABOVE 7000 FEET. 
  LOCALLY HIGHER AMOUNTS OF UP TO 8 INCHES ARE POSSIBLE ON THE 
  HIGHEST PEAKS OF THE BOB MARSHALL WILDERNESS. 

&&

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WWUS45 KTFX 230302
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
902 PM MDT FRI AUG 22 2014

MTZ009-048-231800-
/O.CON.KTFX.WW.Y.0039.140823T0400Z-140823T1800Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...LOGAN PASS
902 PM MDT FRI AUG 22 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
SATURDAY FOR ELEVATIONS ABOVE 6500 FEET...

A WINTER WEATHER ADVISORY FOR ELEVATIONS ABOVE 6500 FEET FOR SNOW REMAINS
IN EFFECT UNTIL NOON MDT SATURDAY.

* TIMING: A PERIOD OF WET SNOW IS EXPECTED TONIGHT INTO SATURDAY 
  MORNING ALONG THE ROCKY MOUNTAIN FRONT INCLUDING GLACIER 
  NATIONAL PARK AND THE BOB MARSHALL WILDERNESS. 

* SNOW ACCUMULATIONS: ACCUMULATING SNOW OF 1 TO 3 INCHES IS 
  EXPECTED ABOVE 7000 FEET. AT LOGAN PASS...UP TO ONE INCH OF 
  SNOW AND SLUSH IS POSSIBLE WITH SNOW INITIALLY MELTING ON 
  GROUND AND ROAD SURFACES.

* VISIBILITY: LESS THAN ONE MILE AT TIMES.

* ELEVATIONS: FOR ELEVATIONS ABOVE 6500 FEET.

* IMPACTS: TRAVEL WILL BECOME DIFFICULT OVER GOING-TO-THE-SUN
  ROAD. COLD AND WET CONDITIONS CAN ALSO LEAD TO HYPOTHERMIA.

* LOCATIONS AFFECTED INCLUDE: LOGAN PASS.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  OUR WEB PAGE AND CLICK ON THE DETAILED HAZARDS TAB

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

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