Winter Storm Warning 13, NWS Great Falls, MT

067 
WWUS45 KTFX 202100
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
300 PM MDT SAT APR 20 2013

MTZ009-048-210445-
/O.CON.KTFX.WS.W.0013.130421T0000Z-130422T0000Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS...
CHOTEAU
300 PM MDT SAT APR 20 2013

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT SUNDAY...

A WINTER STORM WARNING FOR REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM MDT SUNDAY.

* TIMING AND MAIN IMPACT: PERIODS OF HEAVY SNOWFALL WILL DEVELOP
  TONIGHT AND CONTINUE INTO EARLY SUNDAY AFTERNOON. SNOW IS
  EXPECTED TO DIMINISH BY LATE SUNDAY AFTERNOON. SNOW WILL CAUSE
  POOR VISIBILITIES AND HAZARDOUS ROAD CONDITIONS.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 5 TO 10 
  INCHES AT LOWER ELEVATIONS...10 TO 16 INCHES AT HIGHER 
  ELEVATIONS ARE EXPECTED. 

* WINDS AND VISIBILITY: WEST WINDS 20 TO 30 MPH WITH GUSTS TO 45
  MPH WILL SHIFT TO THE NORTH AT 15 TO 25 MPH WITH GUSTS TO 35 MPH
  THIS EVENING. WINDS WILL DIMINISH TO 10 TO 20 MPH BY SUNDAY
  MORNING. VISIBILITIES WILL BE BELOW A HALF MILE AT TIMES.

* OTHER IMPACTS: GUSTY NORTH WINDS ALONG WITH WET SNOW AND COLD
  TEMPERATURES WILL STRESS YOUNG LIVESTOCK ESPECIALLY TONIGHT. 

* LOCATIONS AFFECTED INCLUDE: CHOTEAU...BROWNING...MARIAS PASS.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX:

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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

&&

$$

MTZ012-014-047-050>054-210445-
/O.EXT.KTFX.WW.Y.0019.130421T0000Z-130422T1200Z/
CASCADE-CENTRAL AND SOUTHERN LEWIS AND CLARK-BLAINE-JUDITH BASIN-
FERGUS-JEFFERSON-BROADWATER-MEAGHER-
INCLUDING THE FOLLOWING LOCATIONS...GREAT FALLS...
KINGS HILL PASS...FLESHER PASS...HELENA...LINCOLN...
MACDONALD PASS...ROGERS PASS...STANFORD...LEWISTOWN...
LEWISTOWN DIVIDE...BOULDER...BOULDER HILL...ELK PARK PASS...
HOMESTAKE PASS...WHITEHALL...TOWNSEND...WHITE SULPHUR SPRINGS
300 PM MDT SAT APR 20 2013

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING
TO 6 AM MDT MONDAY...

THE WINTER WEATHER ADVISORY FOR SNOW...IS NOW IN EFFECT FROM 6 PM
THIS EVENING TO 6 AM MDT MONDAY.

* TIMING AND MAIN IMPACT: A CANADIAN COLD FRONT OVER NORTHERN
  MONTANA WILL SPREAD SOUTH TONIGHT WITH SNOW DEVELOPING BEHIND
  IT. SNOW WILL DIMINISH FROM THE NORTH SUNDAY NIGHT. SNOW WILL
  CAUSE POOR VISIBILITIES AND LOCALLY HAZARDOUS ROAD CONDITIONS.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES
  FOR THE PLAINS AND VALLEYS...6 TO 12 INCHES FOR THE MOUNTAINS
  ARE EXPECTED.

* WINDS AND VISIBILITY: WEST WINDS 20 TO 30 MPH WITH GUSTS TO 40
  MPH WILL SHIFT TO THE NORTH AT 15 TO 25 MPH WITH GUSTS TO 35 MPH
  THIS EVENING. WINDS WILL DIMINISH TO 10 TO 20 MPH BY SUNDAY
  MORNING. LOCAL VISIBILITIES WILL BE BELOW ONE MILE AT TIMES.

* OTHER IMPACTS: GUSTY NORTH WINDS ALONG WITH WET SNOW AND COLD
  TEMPERATURES WILL STRESS YOUNG LIVESTOCK ESPECIALLY TONIGHT.

* LOCATIONS AFFECTED INCLUDE: WHITE SULPHUR SPRINGS...
  STANFORD...LEWISTOWN...LEWISTOWN DIVIDE...BOULDER... BOULDER 
  HILL...ELK PARK PASS...HOMESTAKE PASS...WHITEHALL... 
  TOWNSEND...GREAT FALLS...KINGS HILL PASS...FLESHER PASS... 
  HELENA...LINCOLN...MACDONALD PASS...ROGERS PASS. 

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX:

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.

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

&&

$$

MTZ015-055-210445-
/O.EXT.KTFX.WW.Y.0019.130421T0600Z-130422T1200Z/
MADISON-GALLATIN-
INCLUDING THE FOLLOWING LOCATIONS...ENNIS...NORRIS HILL...
TWIN BRIDGES...BATTLE RIDGE PASS...BOZEMAN...BOZEMAN PASS
300 PM MDT SAT APR 20 2013

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
6 AM MDT MONDAY...

THE WINTER WEATHER ADVISORY FOR SNOW...IS NOW IN EFFECT FROM
MIDNIGHT TONIGHT TO 6 AM MDT MONDAY.

* TIMING AND MAIN IMPACT: A CANADIAN COLD FRONT WILL MOVE INTO THE
  AREA LATE TONIGHT OR EARLY SUNDAY MORNING WITH WIDESPREAD SNOW
  DEVELOPING BEHIND IT OVER THE MOUNTAINS. A MIX OF RAIN AND SNOW
  IS EXPECTED IN THE VALLEYS BEFORE TURNING TO ALL SNOW SUNDAY
  EVENING. SNOW WILL DIMINISH LATE SUNDAY NIGHT. SNOW WILL CAUSE
  POOR VISIBILITIES AND LOCALLY HAZARDOUS ROAD CONDITIONS.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES IN
  THE VALLEYS...6 TO 12 INCHES IN THE MOUNTAINS ARE EXPECTED.

* WINDS AND VISIBILITY: WINDS WILL SHIFT TO THE NORTH AT 10 TO 20
  MPH BEHIND THE COLD FRONT. VISIBILITIES WILL BE BELOW ONE MILE
  AT TIMES.

* OTHER IMPACTS: WET SNOW AND COLD TEMPERATURES WILL STRESS YOUNG
  LIVESTOCK.

* LOCATIONS AFFECTED INCLUDE: BATTLE RIDGE PASS...BOZEMAN...
  BOZEMAN PASS...ENNIS...NORRIS HILL...TWIN BRIDGES. 

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX:

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.

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

&&

$$

MTZ010-011-013-044>046-049-210445-
/O.CON.KTFX.WW.Y.0019.130421T0000Z-130422T0000Z/
EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA-
EASTERN TETON-
INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE...
BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...FAIRFIELD
300 PM MDT SAT APR 20 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM MDT SUNDAY...

A WINTER WEATHER ADVISORY FOR SNOW...REMAINS IN EFFECT FROM 6 PM
THIS EVENING TO 6 PM MDT SUNDAY.

* TIMING AND MAIN IMPACT: SNOW WILL DEVELOP THIS EVENING AND
  CONTINUE INTO SUNDAY MORNING. SNOW WILL DIMINISH BY SUNDAY
  AFTERNOON. SNOW WILL CAUSE POOR VISIBILITIES AND LOCALLY
  HAZARDOUS ROAD CONDITIONS.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 2 TO 5 INCHES
  OVER THE PLAINS...5 TO 10 INCHES MOUNTAINS ARE EXPECTED.

* WINDS AND VISIBILITY: NORTH WINDS 20 TO 30 MPH WITH GUSTS TO 40
  MPH THIS EVENING WILL GRADUALLY DIMINISH TO 10 TO 20 MPH BY
  SUNDAY MORNING. VISIBILITIES WILL BE BELOW ONE MILE AT TIMES.

* OTHER IMPACTS: GUSTY NORTH WINDS ALONG WITH WET SNOW AND COLD
  TEMPERATURES WILL STRESS YOUNG LIVESTOCK ESPECIALLY TONIGHT. 

* LOCATIONS AFFECTED INCLUDE: FAIRFIELD...CHESTER...CONRAD...
  BIG SANDY...FORT BENTON...HAVRE...CUT BANK...SHELBY. 

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX:

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.

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

&&

$$

096 
WWUS45 KTFX 210333
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
933 PM MDT SAT APR 20 2013

MTZ009-048-211430-
/O.CON.KTFX.WS.W.0013.000000T0000Z-130422T0000Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS...
CHOTEAU
933 PM MDT SAT APR 20 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SUNDAY...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6
PM MDT SUNDAY.

* TIMING AND MAIN IMPACT: PERIODS OF HEAVY SNOWFALL WILL DEVELOP 
  TONIGHT AND CONTINUE INTO EARLY SUNDAY AFTERNOON. SNOW IS 
  EXPECTED TO DIMINISH BY LATE SUNDAY AFTERNOON. SNOW WILL CAUSE 
  POOR VISIBILITIES AND HAZARDOUS ROAD CONDITIONS. 

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 5 TO 10 INCHES
  AT LOWER ELEVATIONS AND 10 TO 16 INCHES AT HIGHER ELEVATIONS ARE
  EXPECTED.

* WINDS AND VISIBILITY: NORTH AT 15 TO 25 MPH WITH GUSTS TO 35
  MPH THIS EVENING. WINDS WILL DIMINISH TO 10 TO 20 MPH BY SUNDAY
  MORNING. VISIBILITIES WILL BE BELOW A HALF MILE AT TIMES.

* OTHER IMPACTS: GUSTY NORTH WINDS ALONG WITH WET SNOW AND COLD 
  TEMPERATURES WILL STRESS YOUNG LIVESTOCK ESPECIALLY TONIGHT.

* LOCATIONS AFFECTED INCLUDE: CHOTEAU...BROWNING...MARIAS PASS.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX:

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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

&&

$$

MTZ047-211430-
/O.EXT.KTFX.WW.Y.0019.000000T0000Z-130422T0000Z/
BLAINE-
INCLUDING THE FOLLOWING LOCATIONS...CHINOOK
933 PM MDT SAT APR 20 2013

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM MDT SUNDAY...

THE WINTER WEATHER ADVISORY FOR SNOW IS NOW IN EFFECT UNTIL 6 PM
MDT SUNDAY.

* TIMING AND MAIN IMPACT: SNOW WILL DEVELOP THIS EVENING AND
  CONTINUE INTO SUNDAY MORNING. SNOW WILL DIMINISH BY SUNDAY
  AFTERNOON. SNOW WILL CAUSE POOR VISIBILITIES AND LOCALLY
  HAZARDOUS ROAD CONDITIONS. 

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 2 TO 5 INCHES
  OVER THE PLAINS WITH 5 TO 10 INCHES IN THE BEARS PAW MOUNTAINS
  ARE EXPECTED.

* WINDS AND VISIBILITY: NORTH AT 15 TO 25 MPH WITH GUSTS TO 35
  MPH THIS EVENING. WINDS WILL DIMINISH TO 10 TO 20 MPH BY SUNDAY
  MORNING. LOCAL VISIBILITIES WILL BE BELOW ONE MILE AT TIMES.

* OTHER IMPACTS: GUSTY NORTH WINDS ALONG WITH WET SNOW AND COLD 
  TEMPERATURES WILL STRESS YOUNG LIVESTOCK ESPECIALLY TONIGHT.

* LOCATIONS AFFECTED INCLUDE: WHITE SULPHUR SPRINGS... 
  STANFORD...LEWISTOWN...LEWISTOWN DIVIDE...BOULDER... BOULDER 
  HILL...ELK PARK PASS...HOMESTAKE PASS...WHITEHALL... 
  TOWNSEND... GREAT FALLS...KINGS HILL PASS...FLESHER PASS... 
  HELENA... LINCOLN...MACDONALD PASS...ROGERS PASS.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX:

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.

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

&&

$$

MTZ010-011-013-044>046-049-211430-
/O.CON.KTFX.WW.Y.0019.000000T0000Z-130422T0000Z/
EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA-
EASTERN TETON-
INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE...
BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...FAIRFIELD
933 PM MDT SAT APR 20 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
SUNDAY...

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 PM
MDT SUNDAY.

* TIMING AND MAIN IMPACT: SNOW WILL DEVELOP THIS EVENING AND 
  CONTINUE INTO SUNDAY MORNING. SNOW WILL DIMINISH BY SUNDAY 
  AFTERNOON. SNOW WILL CAUSE POOR VISIBILITIES AND LOCALLY 
  HAZARDOUS ROAD CONDITIONS. 

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 2 TO 5 INCHES
  OVER THE PLAINS AND 5 TO 10 INCHES IN THE MOUNTAINS ARE
  EXPECTED.

* WINDS AND VISIBILITY: NORTH WINDS 20 TO 30 MPH WITH GUSTS TO
  40 MPH THIS EVENING WILL GRADUALLY DIMINISH TO 10 TO 20 MPH 
  BY SUNDAY MORNING. VISIBILITIES WILL BE BELOW ONE MILE AT 
  TIMES. 

* OTHER IMPACTS: GUSTY NORTH WINDS ALONG WITH WET SNOW AND COLD 
  TEMPERATURES WILL STRESS YOUNG LIVESTOCK ESPECIALLY TONIGHT.

* LOCATIONS AFFECTED INCLUDE: FAIRFIELD...CHESTER...CONRAD... 
  BIG SANDY...FORT BENTON...HAVRE...CUT BANK...SHELBY.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX:

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.

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

&&

$$

MTZ012-014-050>054-211430-
/O.CON.KTFX.WW.Y.0019.000000T0000Z-130422T1200Z/
CASCADE-CENTRAL AND SOUTHERN LEWIS AND CLARK-JUDITH BASIN-FERGUS-
JEFFERSON-BROADWATER-MEAGHER-
INCLUDING THE FOLLOWING LOCATIONS...GREAT FALLS...
KINGS HILL PASS...FLESHER PASS...HELENA...LINCOLN...
MACDONALD PASS...ROGERS PASS...STANFORD...LEWISTOWN...
LEWISTOWN DIVIDE...BOULDER...BOULDER HILL...ELK PARK PASS...
HOMESTAKE PASS...WHITEHALL...TOWNSEND...WHITE SULPHUR SPRINGS
933 PM MDT SAT APR 20 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
MONDAY...

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 AM
MDT MONDAY.

* TIMING AND MAIN IMPACT: A CANADIAN COLD FRONT WILL CONTINUE TO
  MOVE SOUTH THROUGH CENTRAL MONTANA TONIGHT WITH SNOW DEVELOPING
  BEHIND THE FRONT. SNOW WILL DIMINISH FROM THE NORTH SUNDAY NIGHT.
  SNOW WILL CAUSE POOR VISIBILITIES AND LOCALLY HAZARDOUS ROAD
  CONDITIONS.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES
  FOR THE PLAINS AND VALLEYS AND 6 TO 12 INCHES FOR THE MOUNTAINS
  ARE EXPECTED.

* WINDS AND VISIBILITY: WEST WINDS 20 TO 30 MPH WITH GUSTS TO 
  40 MPH WILL SHIFT TO THE NORTH AT 15 TO 25 MPH WITH GUSTS TO 
  35 MPH THIS EVENING. WINDS WILL DIMINISH TO 10 TO 20 MPH BY 
  SUNDAY MORNING. LOCAL VISIBILITIES WILL BE BELOW ONE MILE AT 
  TIMES.

* OTHER IMPACTS: GUSTY NORTH WINDS ALONG WITH WET SNOW AND COLD 
  TEMPERATURES WILL STRESS YOUNG LIVESTOCK ESPECIALLY TONIGHT.

* LOCATIONS AFFECTED INCLUDE: WHITE SULPHUR SPRINGS... 
  STANFORD...LEWISTOWN...LEWISTOWN DIVIDE...BOULDER... BOULDER 
  HILL...ELK PARK PASS...HOMESTAKE PASS...WHITEHALL... 
  TOWNSEND... GREAT FALLS...KINGS HILL PASS...FLESHER PASS... 
  HELENA... LINCOLN...MACDONALD PASS...ROGERS PASS.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX:

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.

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

&&

$$

MTZ015-055-211430-
/O.CON.KTFX.WW.Y.0019.130421T0600Z-130422T1200Z/
MADISON-GALLATIN-
INCLUDING THE FOLLOWING LOCATIONS...ENNIS...NORRIS HILL...
TWIN BRIDGES...BATTLE RIDGE PASS...BOZEMAN...BOZEMAN PASS
933 PM MDT SAT APR 20 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
MONDAY...

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 AM
MDT MONDAY.

* TIMING AND MAIN IMPACT: A CANADIAN COLD FRONT WILL MOVE INTO THE
  AREA LATE TONIGHT OR EARLY SUNDAY MORNING WITH PRECIPITATION
  DEVELOPING BEHIND THE FRONT. A MIX OF RAIN AND SNOW IS EXPECTED
  IN THE VALLEYS BEFORE TURNING TO ALL SNOW ON SUNDAY MORNING.
  SNOW WILL DIMINISH LATE SUNDAY NIGHT. SNOW WILL CAUSE POOR
  VISIBILITIES AND LOCALLY HAZARDOUS ROAD CONDITIONS.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES
  IN THE VALLEYS...6 TO 12 INCHES IN THE MOUNTAINS ARE 
  EXPECTED. 

* WINDS AND VISIBILITY: WINDS WILL SHIFT TO THE NORTH AT 10 TO
  20 MPH BEHIND THE COLD FRONT. VISIBILITIES WILL BE BELOW ONE 
  MILE AT TIMES. 

* OTHER IMPACTS: WET SNOW AND COLD TEMPERATURES WILL STRESS 
  YOUNG LIVESTOCK. 

* LOCATIONS AFFECTED INCLUDE: BATTLE RIDGE PASS...BOZEMAN... 
  BOZEMAN PASS...ENNIS...NORRIS HILL...TWIN BRIDGES.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX:

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.

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

&&

$$

496 
WWUS45 KTFX 210949
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
349 AM MDT SUN APR 21 2013

MTZ009-048-211800-
/O.CON.KTFX.WS.W.0013.000000T0000Z-130422T0000Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS...
CHOTEAU
349 AM MDT SUN APR 21 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6 PM
MDT THIS EVENING.

* TIMING AND MAIN IMPACT: PERIODS OF HEAVY SNOWFALL WILL CONTINUE
  INTO EARLY THIS AFTERNOON AND DIMINISH BY LATE THIS AFTERNOON.
  SNOW WILL CAUSE POOR VISIBILITIES AND HAZARDOUS ROAD CONDITIONS.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 6 TO 12 
  INCHES AT LOWER ELEVATIONS AND 10 TO 16 INCHES AT HIGHER 
  ELEVATIONS ARE EXPECTED. 

* WINDS AND VISIBILITY: NORTH WINDS 10 TO 20 MPH AND VISIBILITIES
  LESS THAN ONE HALF MILE AT TIMES.

* OTHER IMPACTS: WET SNOW AND COLD TEMPERATURES WILL STRESS YOUNG
  LIVESTOCK.

* LOCATIONS AFFECTED INCLUDE: CHOTEAU...BROWNING...MARIAS PASS.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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

&&

$$

MTZ011-045-047-211800-
/O.EXT.KTFX.WW.Y.0019.000000T0000Z-130421T1800Z/
HILL-LIBERTY-BLAINE-
INCLUDING THE FOLLOWING LOCATIONS...HAVRE...CHESTER...CHINOOK
349 AM MDT SUN APR 21 2013

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MDT TODAY...

THE WINTER WEATHER ADVISORY FOR SNOW IS NOW IN EFFECT UNTIL NOON
MDT TODAY.

* TIMING AND MAIN IMPACT: SNOW WILL GRADUALLY DIMINISH BY EARLY
  THIS AFTERNOON. SNOW WILL CAUSE REDUCED VISIBILITIES AND
  LOCALLY HAZARDOUS ROAD CONDITIONS EARLY THIS MORNING.

* SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF UP TO 2
  INCHES IN THE PLAINS AND 2 TO 5 INCHES IN THE BEARS PAW
  MOUNTAINS ARE EXPECTED.

* WINDS AND VISIBILITY: NORTH WINDS 10 TO 20 MPH WITH VISIBILITIES
  LESS THAN ONE MILE AT TIMES.

* OTHER IMPACTS: WET SNOW AND COLD TEMPERATURES WILL STRESS YOUNG
  LIVESTOCK.

* LOCATIONS AFFECTED INCLUDE: CHESTER...CHINOOK...HAVRE.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX

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.

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

&&

$$

MTZ010-013-044-046-049-211800-
/O.CON.KTFX.WW.Y.0019.000000T0000Z-130422T0000Z/
EASTERN GLACIER-CHOUTEAU-TOOLE-EASTERN PONDERA-EASTERN TETON-
INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...BIG SANDY...
FORT BENTON...SHELBY...CONRAD...FAIRFIELD
349 AM MDT SUN APR 21 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 PM
MDT THIS EVENING.

* TIMING AND MAIN IMPACT: SNOW WILL CONTINUE THIS MORNING AND
  GRADUALLY DIMINISH THIS AFTERNOON. SNOW WILL CAUSE POOR
  VISIBILITIES AND LOCALLY HAZARDOUS ROAD CONDITIONS...ESPECIALLY
  EARLY THIS MORNING.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 2 TO 5 INCHES 
  OVER THE PLAINS AND 5 TO 10 INCHES IN THE MOUNTAINS ARE 
  EXPECTED.

* WINDS AND VISIBILITY: NORTH WINDS BECOMING 5 TO 15 MPH THIS
  MORNING. VISIBILITIES WILL BE LESS THAN ONE MILE AT TIMES IN
  HEAVIER SNOWFALL.

* OTHER IMPACTS: WET SNOW AND COLD TEMPERATURES WILL STRESS YOUNG
  LIVESTOCK.

* LOCATIONS AFFECTED INCLUDE: FAIRFIELD...CONRAD...BIG SANDY...
  FORT BENTON...CUT BANK...SHELBY.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX

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.

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

&&

$$

MTZ012-014-015-050>055-211800-
/O.CON.KTFX.WW.Y.0019.000000T0000Z-130422T1200Z/
CASCADE-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON-JUDITH BASIN-
FERGUS-JEFFERSON-BROADWATER-MEAGHER-GALLATIN-
INCLUDING THE FOLLOWING LOCATIONS...GREAT FALLS...
KINGS HILL PASS...FLESHER PASS...HELENA...LINCOLN...
MACDONALD PASS...ROGERS PASS...ENNIS...NORRIS HILL...
TWIN BRIDGES...STANFORD...LEWISTOWN...LEWISTOWN DIVIDE...
BOULDER...BOULDER HILL...ELK PARK PASS...HOMESTAKE PASS...
WHITEHALL...TOWNSEND...WHITE SULPHUR SPRINGS...
BATTLE RIDGE PASS...BOZEMAN...BOZEMAN PASS
349 AM MDT SUN APR 21 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
MONDAY...

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 AM
MDT MONDAY.

* TIMING AND MAIN IMPACT: SNOW WILL CONTINUE THIS MORNING OVER
  CENTRAL MONTANA AND DEVELOP ACROSS SOUTHWEST MONTANA LATER THIS
  MORNING. SNOW WILL GRADUALLY DIMINISH FROM NORTH TO SOUTH
  TONIGHT. SNOW WILL CAUSE POOR VISIBILITIES AND LOCALLY HAZARDOUS
  ROAD CONDITIONS...ESPECIALLY DURING THE OVERNIGHT AND EARLY
  MORNING PERIODS.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 2 TO 6 INCHES IN
  THE PLAINS AND VALLEYS WITH 6 TO 12 INCHES IN THE MOUNTAINS ARE
  EXPECTED.

* WINDS AND VISIBILITY: NORTH WINDS 10 TO 20 MPH WITH VISIBILITIES
  LESS THAN ONE MILE AT TIMES IN HEAVIER SNOWFALL.

* OTHER IMPACTS: WET SNOW AND COLD TEMPERATURES WILL STRESS YOUNG
  LIVESTOCK.

* LOCATIONS AFFECTED INCLUDE: WHITE SULPHUR SPRINGS...BATTLE RIDGE
  PASS...BOZEMAN...BOZEMAN PASS...STANFORD...
  LEWISTOWN...LEWISTOWN DIVIDE...BOULDER...BOULDER HILL... ELK
  PARK PASS...HOMESTAKE PASS...WHITEHALL...TOWNSEND... GREAT
  FALLS...KINGS HILL PASS...FLESHER PASS...HELENA... LINCOLN...
  MACDONALD PASS...ROGERS PASS...ENNIS... NORRIS HILL...TWIN
  BRIDGES.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX.

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.

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

&&

$$

477 
WWUS45 KTFX 211654
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
1054 AM MDT SUN APR 21 2013

MTZ010-013-044-046-049-211800-
/O.CAN.KTFX.WW.Y.0019.000000T0000Z-130422T0000Z/
EASTERN GLACIER-CHOUTEAU-TOOLE-EASTERN PONDERA-EASTERN TETON-
INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...BIG SANDY...
FORT BENTON...SHELBY...CONRAD...FAIRFIELD
1054 AM MDT SUN APR 21 2013

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

SNOW HAS EITHER ENDED OR DECREASED SIGNIFICANTLY ACROSS NORTH
CENTRAL MONTANA THIS MORNING. ANY ADDITIONAL SNOWFALL TODAY WILL
LIKELY ONLY BE FLURRIES WITH NO ADDITIONAL ACCUMULATION.
THEREFORE...THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED.

HOWEVER...ROADS WILL REMAIN SLICK IN SPOTS. PLEASE USE CAUTION IF
TRAVELING AROUND NORTH CENTRAL MONTANA TODAY AND TONIGHT.

$$

MTZ011-045-047-211800-
/O.CAN.KTFX.WW.Y.0019.000000T0000Z-130421T1800Z/
HILL-LIBERTY-BLAINE-
INCLUDING THE FOLLOWING LOCATIONS...HAVRE...CHESTER...CHINOOK
1054 AM MDT SUN APR 21 2013

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

SNOW HAS EITHER ENDED OR DECREASED SIGNIFICANTLY ACROSS NORTH
CENTRAL MONTANA THIS MORNING. ANY ADDITIONAL SNOWFALL TODAY WILL
LIKELY ONLY BE FLURRIES WITH NO ADDITIONAL ACCUMULATION.
THEREFORE...THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED.

HOWEVER...ROADS WILL REMAIN SLICK IN SPOTS. PLEASE USE CAUTION IF
TRAVELING AROUND NORTH CENTRAL MONTANA TODAY AND TONIGHT.

$$

MTZ009-048-220000-
/O.CON.KTFX.WS.W.0013.000000T0000Z-130422T0000Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS...
CHOTEAU
1054 AM MDT SUN APR 21 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6 PM
MDT THIS EVENING.

* TIMING AND MAIN IMPACT: PERIODS OF LIGHT TO MODERATE SNOWFALL
  WILL DIMINISH BY LATE THIS AFTERNOON. FALLING SNOW WILL CAUSE
  REDUCED VISIBILITIES...AND THE SNOW THAT HAS FALLEN WILL
  CONTINUE TO CAUSE HAZARDOUS ROAD CONDITIONS.

* SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 3 TO 5
  INCHES OF SNOW ARE EXPECTED IN THE MOUNTAINS...WHILE 1 TO 3
  INCHES OF ADDITIONAL SNOW ARE EXPECTED OVER THE PLAINS AND ALONG
  THE FOOTHILLS.

* VISIBILITY: HEAVIER SNOW SHOWERS WILL REDUCE VISIBILITIES TO
  LESS THAN ONE MILE AT TIMES.

* OTHER IMPACTS: THE WET SNOW...COLD TEMPERATURES...AND BREEZY
  NORTHERLY WINDS WILL STRESS YOUNG LIVESTOCK.

* LOCATIONS AFFECTED INCLUDE: CHOTEAU...BROWNING...MARIAS PASS.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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

&&

$$

MTZ012-014-015-050>055-220500-
/O.CON.KTFX.WW.Y.0019.000000T0000Z-130422T1200Z/
CASCADE-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON-JUDITH BASIN-
FERGUS-JEFFERSON-BROADWATER-MEAGHER-GALLATIN-
INCLUDING THE FOLLOWING LOCATIONS...GREAT FALLS...
KINGS HILL PASS...FLESHER PASS...HELENA...LINCOLN...
MACDONALD PASS...ROGERS PASS...ENNIS...NORRIS HILL...
TWIN BRIDGES...STANFORD...LEWISTOWN...LEWISTOWN DIVIDE...
BOULDER...BOULDER HILL...ELK PARK PASS...HOMESTAKE PASS...
WHITEHALL...TOWNSEND...WHITE SULPHUR SPRINGS...
BATTLE RIDGE PASS...BOZEMAN...BOZEMAN PASS
1054 AM MDT SUN APR 21 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
MONDAY...

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 AM
MDT MONDAY.

* TIMING AND MAIN IMPACT: A BAND OF SNOW OVER CENTRAL MONTANA THIS
  MORNING WILL CONTINUE MOVE SOUTH INTO SOUTHWEST MONTANA DURING
  THE AFTERNOON HOURS. SNOW WILL GRADUALLY DIMINISH FROM THE NORTH
  ACROSS CENTRAL MONTANA LATER THIS AFTERNOON INTO THIS
  EVENING...THEN SNOW ACROSS SOUTHWEST MONTANA WILL DECREASE LATER
  TONIGHT. SNOW WILL CONTINUE TO CAUSE POOR VISIBILITIES AND
  LOCALLY HAZARDOUS ROAD CONDITIONS...ESPECIALLY DURING THE
  OVERNIGHT PERIOD.

* SNOW ACCUMULATIONS: A TOTAL OF 2 TO 5 INCHES OF SNOW ARE
  EXPECTED IN THE VALLEYS OF SOUTHWEST MONTANA...WITH 6 TO 12
  INCHES POSSIBLE IN THE MOUNTAINS. ADDITIONAL ACCUMULATIONS
  ACROSS CENTRAL MONTANA WILL BE 1 TO 2 INCHES OVER THE
  PLAINS...WITH ANOTHER 3 TO 6 INCHES POSSIBLE IN THE MOUNTAINS.

* WINDS AND VISIBILITY: HEAVIER SNOW SHOWERS WILL REDUCE
  VISIBILITIES TO LESS THAN ONE MILE AT TIMES. ACROSS SOUTHWEST
  MONTANA...NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL
  SPREAD SOUTH OVER THE AREA THROUGHOUT THE DAY...REDUCING
  VISIBILITIES LESS THAN ONE HALF MILE AT TIMES IN BLOWING SNOW.

* OTHER IMPACTS: WET SNOW AND COLD TEMPERATURES WILL STRESS 
  YOUNG LIVESTOCK. 

* LOCATIONS AFFECTED INCLUDE: WHITE SULPHUR SPRINGS...BATTLE 
  RIDGE PASS...BOZEMAN...BOZEMAN PASS...STANFORD... 
  LEWISTOWN...LEWISTOWN DIVIDE...TOWNSEND...BOULDER... BOULDER 
  HILL...ELK PARK PASS...HOMESTAKE PASS...WHITEHALL... GREAT 
  FALLS...KINGS HILL PASS...FLESHER PASS...HELENA... LINCOLN...
  MACDONALD PASS...ROGERS PASS...ENNIS... NORRIS HILL...TWIN 
  BRIDGES. 

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX

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.

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

&&

$$

041 
WWUS45 KTFX 212344
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
544 PM MDT SUN APR 21 2013

MTZ009-048-220045-
/O.EXP.KTFX.WS.W.0013.000000T0000Z-130422T0000Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS...
CHOTEAU
544 PM MDT SUN APR 21 2013

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER STORM WARNING FOR THE ROCKY MOUNTAIN FRONT WILL BE
ALLOWED TO EXPIRE AT 6 PM MDT THIS EVENING. INTERMITTENT LIGHT
SNOW WILL CONTINUE INTO EARLY EVENING BUT SIGNIFICANT ADDITIONAL
ACCUMULATIONS ARE NOT EXPECTED.



$$

MTZ012-014-015-050>055-221200-
/O.CON.KTFX.WW.Y.0019.000000T0000Z-130422T1200Z/
CASCADE-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON-JUDITH BASIN-
FERGUS-JEFFERSON-BROADWATER-MEAGHER-GALLATIN-
INCLUDING THE FOLLOWING LOCATIONS...GREAT FALLS...
KINGS HILL PASS...FLESHER PASS...HELENA...LINCOLN...
MACDONALD PASS...ROGERS PASS...ENNIS...NORRIS HILL...
TWIN BRIDGES...STANFORD...LEWISTOWN...LEWISTOWN DIVIDE...
BOULDER...BOULDER HILL...ELK PARK PASS...HOMESTAKE PASS...
WHITEHALL...TOWNSEND...WHITE SULPHUR SPRINGS...
BATTLE RIDGE PASS...BOZEMAN...BOZEMAN PASS
544 PM MDT SUN APR 21 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
MONDAY...

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 AM
MDT MONDAY.

* TIMING AND MAIN IMPACT: AREAS OF LIGHT SNOW CONTINUE ACROSS
  PARTS OF CENTRAL AND SOUTHWEST MONTANA BUT SHOULD GRADUALLY
  DIMINISH THIS EVENING AND TONIGHT. SNOW WILL CONTINUE TO CAUSE
  POOR VISIBILITIES AND LOCALLY HAZARDOUS ROAD CONDITIONS...ESPECIALLY
  DURING THE OVERNIGHT PERIOD.

* SNOW ACCUMULATIONS: A TOTAL OF 2 TO 5 INCHES OF SNOW ARE
  EXPECTED IN THE VALLEYS OF SOUTHWEST MONTANA...WITH 6 TO 12
  INCHES POSSIBLE IN THE MOUNTAINS. ADDITIONAL ACCUMULATIONS
  ACROSS CENTRAL MONTANA WILL BE 1 TO 2 INCHES OVER THE PLAINS...
  WITH ANOTHER 3 TO 6 INCHES POSSIBLE IN THE MOUNTAINS.

* WINDS AND VISIBILITY: HEAVIER SNOW SHOWERS WILL REDUCE 
  VISIBILITIES TO LESS THAN ONE MILE AT TIMES. ACROSS 
  SOUTHWEST MONTANA...NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 
  30 MPH WILL SPREAD SOUTH OVER THE AREA THROUGHOUT THE DAY...
  REDUCING VISIBILITIES LESS THAN ONE HALF MILE AT TIMES IN 
  BLOWING SNOW.

* OTHER IMPACTS: WET SNOW AND COLD TEMPERATURES WILL STRESS 
  YOUNG LIVESTOCK.

* LOCATIONS AFFECTED INCLUDE: WHITE SULPHUR SPRINGS...BATTLE 
  RIDGE PASS...BOZEMAN...BOZEMAN PASS...STANFORD... 
  LEWISTOWN... LEWISTOWN DIVIDE...TOWNSEND...BOULDER... 
  BOULDER HILL...ELK PARK PASS...HOMESTAKE PASS...WHITEHALL... 
  GREAT FALLS...KINGS HILL PASS...FLESHER PASS...HELENA... 
  LINCOLN... MACDONALD PASS...ROGERS PASS...ENNIS... NORRIS 
  HILL...TWIN BRIDGES. 

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE VISIT 
  WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX

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.

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

&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
1045 PM MDT Fri Apr 19 2013

UPDATED AVIATION DISCUSSION

.UPDATE...
Current radar shows a few light showers, associated with an exiting
weak upper level disturbance, over portions of the Hiline and
central MT counties east of Great Falls.  Some precipitation from
these showers may not be reaching the ground at lower elevation
locations.  The showers will move off to the south/east tonight but
a second minor weather system, presently located in southeast
British Columbia, will bring additional moisture later, so will keep
a chance of rain/snow showers along the Rocky Mtn Front and over
southwest MT thru the overnight hours.  Partly to mostly cloudy
skies will limit cooling tonight so most locations should remain a
few degrees above freezing.  Winter storm watch for the northern and
southern Rocky Mtn Front for the strong cold front coming Sat night
remains in effect with no changes at this time.
Waranauskas

&&

.DISCUSSION...

Tonight through Saturday...The moist and weakly unstable
northwesterly flow aloft will continue scattered showers across
north central and southwest Montana at times through Saturday,
especially in the mountain areas. Breezy westerly downslope winds
will also persist through the period, becoming strong at times
during the day on Saturday ahead of an approaching cold front.
Conditions do not appear to favor High Wind Warning criteria
winds, so am not anticipating a need for any highlights at this
time. However, these winds will likely hinder shower development
along the east slopes of the Rockies. Temperatures will also
remain near seasonal averages through this period. Coulston/Blank

Saturday night through Sunday night...Forecast models continue to
bring a strong and moist, but fast-moving, shortwave trough with
associated Canadian cold front through the area Saturday night. Am
leaning toward the faster cold frontal passage timing of the GFS
model, which moves the cold front from along the Canadian border
late Saturday afternoon through north central Montana and into
southwest Montana by early Sunday morning. Precipitation will
initially be a mix of rain and snow along and immediately behind
the cold front, but it will become all snow within a couple of
hours of frontal passage as winds shift more northerly and
upsloping. Confidence is increasing that this system will bring
heavy snow to the Rocky Mountain Front, but will continue the
Winter Storm Watch as is for now, as the speed of this system may
slightly lessen snow amounts. Light measurable snow is also
expected at most other areas, and a Winter Weather Advisory may be
needed to address this. The system will exit the area late Sunday
afternoon through Sunday evening, for decreasing snowfall.
Temperatures will cool off into the 20s behind the front Saturday
night across north central Montana, but southwest Montana will
likely only fall to around 30 degrees. Temperatures behind the
front across the area on Sunday will mostly remain in the 30s,
although temperatures may approach 40 in far southwest Montana.
With fresh snow cover and an entrenched cold airmass Sunday night,
temperatures will fall into the teens to lower 20s. Partially
clearing skies along the northern east slopes of the Rockies may
even allow temperatures to fall to below 10 degrees there.
Coulston

Monday through Friday Night...Light snow will linger in the
mountains as well as portions of central and southwest Montana
with accumulations into Monday morning of 1 to 2 inches possible.
The cooler airmass will reside over the forecast area into Monday
with high temperatures 20 degrees below seasonal averages. Drier
conditions are anticipated for Tuesday, however unsettled
northwest flow will keep chances for precipitation through the
remainder of the week. Long-range forecast models differ on the
timing of each shortwave but at this time the best chances for
moisture will be Thursday and Friday. The timing of these
shortwaves will likely determine precipitation type.
Precipitation type will be rain during the day but may mix with
or change over to snow at night as overnight lows fall to around
freezing.

&&

.AVIATION...
UPDATED 0500Z.
A moist and unsettled northwesterly flow aloft will continue across
the Northern Rockies and MT with several embedded disturbances
keeping broken mid level clouds over the region. Scattered/light
rain showers will continue to diminish through the remainder of this
evening but may still affect the KHVR and KLWT terminals through 08z
however VFR conditions will prevail. Scattered showers will
redevelop Saturday morning across much of the area with gusty west
winds developing at most terminals by Saturday afternoon. A strong
upper level system and Canadian cold front will cross the MT/Alberta
border by around 00z Sunday, bringing a wind shift to the north as
far south as KGTF and KLWT by 06z Sunday. MVFR/IFR conditions will
become widespread across north central MT following the frontal
passage Saturday night. Hoenisch

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  37  56  28  32 /  30  50 100 100
CTB  33  52  23  31 /  20  60 100  90
HLN  35  55  31  34 /  40  50  70 100
BZN  30  54  31  38 /  50  60  40  90
WEY  28  46  25  37 /  80  60  30  80
DLN  32  52  30  40 /  50  50  20  80
HVR  33  57  28  33 /  50  60  80  70
LWT  32  52  28  32 /  40  40  90  90

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH from Saturday evening through Sunday
afternoon Northern Rocky Mountain Front...Southern Rocky
Mountain Front.

&&

weather.gov/greatfalls

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREAT FALLS MT
529 AM MDT FRI APR 19 2013

MTZ010-012>014-044>046-049>054-201130-
EASTERN GLACIER-CASCADE-CHOUTEAU-
CENTRAL AND SOUTHERN LEWIS AND CLARK-TOOLE-LIBERTY-
EASTERN PONDERA-EASTERN TETON-JUDITH BASIN-FERGUS-JEFFERSON-
BROADWATER-MEAGHER-
529 AM MDT FRI APR 19 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA.

.DAY ONE...TODAY AND TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER TODAY IS LOW.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A STRONG CANADIAN COLD FRONT WILL SWEEP ACROSS THE AREA SATURDAY
NIGHT AND BRING ANOTHER ROUND OF WINTER LIKE CONDITIONS. A MIX OF
LIGHT RAIN AND SNOW SATURDAY EVENING OVER THE PLAINS AND VALLEYS
WILL SWITCH TO ALL SNOW AFTER MIDNIGHT. ACCUMULATIONS THROUGH
SUNDAY NIGHT OF 2 TO 6 INCHES OVER THE PLAINS AND VALLEYS AND 6 TO
12 INCHES IN THE MOUNTAINS ARE POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MTZ008-015-055-201130-
BEAVERHEAD-MADISON-GALLATIN-
529 AM MDT FRI APR 19 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
MONTANA.

.DAY ONE...TODAY AND TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER TODAY IS LOW.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A STRONG CANADIAN COLD FRONT WILL MOVE THROUGH SUNDAY AND BRING ANOTHER
ROUND OF WINTER LIKE CONDITIONS. LIGHT SNOW WILL SPREAD FROM NORTH
TO SOUTH BEGINNING SUNDAY MORNING...AND CONTINUE THROUGH SUNDAY
NIGHT. ACCUMULATIONS THROUGH SUNDAY NIGHT OF LESS THAN ONE INCH TO
AROUND 2 INCHES WILL BE POSSIBLE IN THE VALLEYS...WITH 3 TO 6
INCHES IN THE MOUNTAINS.
.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MTZ011-047-201130-
HILL-BLAINE-
529 AM MDT FRI APR 19 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
MONTANA.

.DAY ONE...TODAY AND TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER TODAY IS LOW.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A STRONG CANADIAN COLD FRONT WILL SWEEP ACROSS THE REGION LATE
SATURDAY AFTERNOON OR SATURDAY EVENING AND BRING ANOTHER ROUND OF
WINTER LIKE CONDITIONS. A MIX OF LIGHT RAIN AND SNOW WILL DEVELOP
SATURDAY EVENING...THEN CHANGE TO SNOW BY SUNDAY MORNING.
ACCUMULATIONS THROUGH SUNDAY NIGHT OF UP TO ONE INCH ARE POSSIBLE
OVER THE PLAINS WITH 3 TO 6 INCHES IN THE MOUNTAINS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MTZ009-048-201130-
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
529 AM MDT FRI APR 19 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
MONTANA.

.DAY ONE...TODAY AND TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER TODAY IS LOW.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A WINTER STORM WATCH IS IN EFFECT FROM SATURDAY EVENING THROUGH
SUNDAY AFTERNOON. TOTAL SNOW ACCUMULATIONS OF 5 TO 10 INCHES ARE POSSIBLE
AT LOWER ELEVATIONS...10 TO 16 INCHES AT HIGHER ELEVATIONS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.