Alert archive / Montana / Winter Storm Warnings in 2016

Winter Storm Warning 8, NWS Missoula, MT

December 11, 20168 counties in Montana; Clearwater County, Idaho

NWS Missoula, MT issued this winter storm warning at Dec 11, 2016, 9:44 AM MST for 8 counties in Montana; Clearwater County, Idaho. It took effect at Dec 11, 2016, 5:00 PM MST. It was in force for 27 hr. 18 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 11, 2016, 9:44 AM MST (16:44 UTC)
In effect from
Dec 11, 2016, 5:00 PM MST
Expired
Dec 12, 2016, 8:00 PM MST
In force
27 hr
Issued by
NWS Missoula, MT

Counties Clearwater County, ID, Flathead County, MT, Granite County, MT, Lake County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT

The radar

The Missoula radar (KMSX), 22 km from the middle of the area, began a volume at 16:47 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.

What was reported inside it

TimeReportWhereRemark
Dec 11, 9:26 PM MSTSNOW 6.52 Wnw Belknap, MT6.5 INCHES OF SNOW IN THE LAST 14 HOURS (SINCE 7AM LOCAL TIME). 14 CURRENTLY ON THE GROUND. ELEVATION 2500'.
Dec 12, 6:24 AM MSTSNOW 43 Ese Bigfork, MTFERNDALE.
Dec 12, 6:24 AM MSTHEAVY SNOW 6Noxon, MTNEW SNOW FROM THE OVERNIGHT HOURS. .
Dec 12, 7:00 AM MSTSNOW 8.53 S White Pine, MTCOCORAHS STATION 3 S WHITE PINE /MT-SN-4/.
Dec 12, 7:00 AM MSTHEAVY SNOW 8.54 S White Pine, MT0.54 INCHES OF SNOW WATER EQUIVALENT. 15 INCHES SNOW DEPTH. .
Dec 12, 8:30 AM MSTSNOW 1.53 Sw Ovando, MTCOCORAHS STATION 2 WSW OVANDO /MT-PW-3/.
Dec 12, 9:00 AM MSTSNOW 1.62 Nw Clinton, MTCOCORAHS STATION 1 NW CLINTON /MT-MS-22/.
Dec 12, 9:00 AM MSTSNOW 5.44 Nw Noxon, MTCOCORAHS STATION 4 WNW NOXON /MT-SN-2/.
Dec 12, 9:08 AM MSTSNOW 71 S Condon, MTSNOW WAS HEAVY AT TIMES YESTERDAY DEC. 11. 15 SNOW DEPTH. CURRENTLY ONE QUARTER MILE FOG WITH LIGHT SNOW.
Dec 12, 9:30 AM MSTSNOW 9Essex, MT18 TOTAL STORM SNOWFALL OVER THE WEEKEND. .
Dec 12, 10:00 AM MSTSNOW 2014 Wnw Seeley Lake, MTMESONET STATION 14 WNW SEELEY LAKE /NFJM8/.
Dec 12, 11:00 AM MSTSNOW 49 Ne Bigfork, MT49 ON THE GROUND. MESONET STATION 8 NE BIGFORK /NOIM8R2 SNOTEL /.
Dec 12, 12:36 PM MSTSNOW 11.82 Ssw Blacktail, MTSNOW TOTAL SINCE SATURDAY EVENING DEC 10. 21.7 OF SNOW SINCE FRIDAY DEC 9. .
Dec 12, 1:25 PM MSTSNOW 62 Sse Seeley Lake, MTSNOWFALL SINCE SATURDAY EVENING. HIGHWAY 83 WAS SNOW PACKED AROUND 1130 AM. .
Dec 12, 1:47 PM MSTSNOW 3.81 Nw Evaro, MT8 INCHES SINCE SATURDAY MORNING. IT HAS STARTED TO SNOW NOW. .
Dec 12, 2:18 PM MSTHEAVY SNOW 51 Nnw De Borgia, MTIN THE LAST 24 HOURS. WEST SLOPE AT 4000 FEET OR ABOUT 1000 FEET ABOVE I90. HE RECEIVED 24 INCHES TOTAL THROUGHOUT THE WEEKEND. .
Dec 12, 2:27 PM MSTHEAVY SNOW 145 Nw East Portal, MTLOOKOUT PASS. THE DURATION OF THE HEAVY SNOW EVENT WAS 26 HOURS.
Dec 12, 7:01 PM MSTHEAVY SNOW 65 Wnw Helmville, MT6 INCHES OVER THE DURATION OF THE SNOW BAND, SINCE ROUGHLY 3:30PM. SKIES CLEARING NOW.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 4.7 hours before the alert went out and 175 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, Spokane, WA at 12:00Z on 2016-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2016-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.19395878Sfc1 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
609 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

323 
WWUS45 KMSO 111644
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
944 AM MST SUN DEC 11 2016

MTZ004-121645-
/O.NEW.KMSO.WS.W.0008.161212T0000Z-161213T0300Z/
/O.EXT.KMSO.WW.Y.0062.000000T0000Z-161212T0000Z/
944 AM MST SUN DEC 11 2016

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
8 PM MST MONDAY...

* IMPACTS/TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE
  LATE SUNDAY INTO MONDAY. I-90 LOOKOUT PASS AND US-93 EVARO HILL
  WILL BE ESPECIALLY HARD HIT WITH HEAVY SNOW, LOW VISIBILITIES 
  AND TREACHEROUS TRAVEL.

* LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON
  FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I-90
  LOOKOUT PASS TO HAUGAN

$$

MTZ002-003-121645-
/O.UPG.KMSO.WS.A.0006.161212T0600Z-161213T0300Z/
/O.NEW.KMSO.WS.W.0008.161212T0000Z-161213T0300Z/
944 AM MST SUN DEC 11 2016

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
8 PM MST MONDAY...

* IMPACTS/TIMING: ARCTIC AIR WILL POUR ACROSS THE CONTINENTAL
  DIVIDE LATE SUNDAY INTO EARLY MONDAY. GUSTY WINDS, BLOWING SNOW
  AND ADDITIONAL HEAVY SNOW WILL LEAD TO DANGEROUS TRAVEL CONDITIONS,
  ESPECIALLY DURING THE OVERNIGHT AND EARLY MORNING HOURS MONDAY.

* SNOW ACCUMULATIONS: AN ADDITIONAL 3 TO 7 INCHES THROUGHOUT THE 
  VALLEYS WITH UP TO ANOTHER FOOT THROUGHOUT THE HIGHER TERRAIN. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL BE
  DEVELOPING. FREQUENT GUSTS TO 40 MPH ARE POSSIBLE WITH OCCASIONAL
  GUSTS TO NEAR 50 MPH ALONG US-2 AND THROUGH BAD ROCK CANYON. 

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, MONTANA 83
  BIGFORK TO SWAN LAKE, MARIAS PASS, POLEBRIDGE, FLATHEAD LAKE,
  FLATHEAD VALLEY, MISSION VALLEY, AND POLSON

$$

IDZ005-006-MTZ006-120000-
/O.EXT.KMSO.WW.Y.0062.000000T0000Z-161212T0000Z/
944 AM MST SUN DEC 11 2016 /844 AM PST SUN DEC 11 2016/

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 PM MST /4 PM
PST/ THIS AFTERNOON...

* IMPACTS/TIMING: SNOW WILL CONTINUE IN THE CLEARWATER AND 
  BITTERROOT MOUNTAINS. FIVE TO EIGHT INCHES OF TOTAL SNOW ARE 
  POSSIBLE AT LOLO AND LOOKOUT PASSES BY SUNDAY AFTERNOON 
  CAUSING DIFFICULT TRAVEL. MANY ROADS ARE ALREADY IN POOR 
  CONDITION WITH COMPACTED SNOW AND ICE, SO THIS WILL ONLY 
  EXACERBATE CONDITIONS. 

* SNOW ACCUMULATIONS: 5-8 INCHES AT LOLO AND LOOKOUT PASSES, 
  WITH LESS AT LOWER ELEVATIONS. 

* LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO 
  HEADQUARTERS, PIERCE, DIXIE, ELK CITY, HIGHWAY 12 LOWELL TO 
  LOLO PASS, HIGHWAY 93 SULA TO LOST TRAIL PASS, AND LOLO PASS

$$

MTZ005-043-121645-
/O.CON.KMSO.WS.A.0006.161212T0900Z-161213T0300Z/
944 AM MST SUN DEC 11 2016

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY EVENING...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE 
  CONTINENTAL DIVIDE AND INTO THE NORTHERN ROCKIES MONDAY. THE 
  COMBINATION OF GUSTY WINDS, FRESHLY FALLEN SNOW AND PERIODS OF 
  ADDITIONAL HEAVY SNOW ALONG THE ARCTIC BOUNDARY COULD LEAD TO 
  DANGEROUS TRAVEL CONDITIONS MONDAY, ESPECIALLY DURING THE 
  AFTERNOON. 

* SNOW ACCUMULATIONS: 6 TO 9 INCHES WITH LOCALLY HIGHER AMOUNTS 
  POSSIBLE. 

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH WILL BE 
  DEVELOPING AS THE ARCTIC BOUNDARY SHIFTS SOUTH AND WEST 
  MONDAY. GUSTS WILL FREQUENTLY REACH 30 MPH WITH OCCASIONAL 40 
  MPH READINGS POSSIBLE NEAR HELLGATE CANYON AND ALONG MT-200. 

* LOCATIONS IMPACTED INCLUDE: BITTERROOT VALLEY, MISSOULA, 
  HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO 
  CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH

$$
9 follow-up statements
668 
WWUS45 KMSO 112100
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
200 PM MST SUN DEC 11 2016

MTZ043-122100-
/O.UPG.KMSO.WS.A.0006.161212T0900Z-161213T0300Z/
/O.EXB.KMSO.WS.W.0008.161212T0600Z-161213T0300Z/
200 PM MST SUN DEC 11 2016

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 8 PM
MST MONDAY...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE
  CONTINENTAL DIVIDE OVERNIGHT TONIGHT INTO EARLY MONDAY. BLOWING
  SNOW AND ADDITIONAL HEAVY SNOWFALL WILL LEAD TO DANGEROUS 
  TRAVEL CONDITIONS.

* SNOW ACCUMULATIONS: 8 TO 16 INCHES.

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH. GUSTS WILL 
  FREQUENTLY REACH 30 MPH WITH 40 MPH POSSIBLE NEAR HELLGATE 
  CANYON AND ALONG MT-200.

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, 
  HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO 
  BEARMOUTH

$$

IDZ005-122100-
/O.EXA.KMSO.WS.W.0008.161212T0000Z-161213T0300Z/
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161212T0000Z/
100 PM PST SUN DEC 11 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...
...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 PM PST MONDAY...

* IMPACTS/TIMING: VERY HEAVY SNOW WILL DEVELOP IN THE CLEARWATER
  AND BITTERROOT MOUNTAINS THROUGH MONDAY. LOW VISIBILITIES,
  DRIFTING AND ACCUMLATING SNOW WILL CAUSE LOCAL TRAVEL CORRIDORS
  TO BECOME IMPASSABLE AT TIMES.

* SNOW ACCUMULATIONS: 10 TO 18 INCHES.

* LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO 
  HEADQUARTERS, AND PIERCE

$$

MTZ004-122100-
/O.CON.KMSO.WS.W.0008.161212T0000Z-161213T0300Z/
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161212T0000Z/
200 PM MST SUN DEC 11 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 8 PM MST MONDAY...

* IMPACTS/TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE 
  LATE SUNDAY INTO MONDAY. I-90 LOOKOUT PASS AND US-93 EVARO 
  HILL WILL BE ESPECIALLY HARD HIT WITH HEAVY SNOW, LOW 
  VISIBILITIES AND TREACHEROUS TRAVEL. 

* LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON 
  FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 
  LOOKOUT PASS TO HAUGAN

$$

MTZ002-003-122100-
/O.CON.KMSO.WS.W.0008.161212T0000Z-161213T0300Z/
200 PM MST SUN DEC 11 2016

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 8 PM MST MONDAY...

* IMPACTS/TIMING: ARCTIC AIR WILL POUR ACROSS THE CONTINENTAL 
  DIVIDE LATE SUNDAY INTO EARLY MONDAY. GUSTY WINDS, BLOWING 
  SNOW AND ADDITIONAL HEAVY SNOW WILL LEAD TO DANGEROUS TRAVEL 
  CONDITIONS, ESPECIALLY DURING THE OVERNIGHT AND EARLY MORNING 
  HOURS MONDAY. 

* SNOW ACCUMULATIONS: AN ADDITIONAL 3 TO 7 INCHES THROUGHOUT THE 
  VALLEYS WITH UP TO ANOTHER FOOT THROUGHOUT THE HIGHER TERRAIN. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL BE
  DEVELOPING AND CAUSE WIND CHILLS OF -20 TO -30 DEGREES. 
  FREQUENT GUSTS TO 40 MPH ARE POSSIBLE WITH OCCASIONAL GUSTS TO 
  NEAR 50 MPH ALONG US-2 AND THROUGH BAD ROCK CANYON. 

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 
  BIGFORK TO SWAN LAKE, MARIAS PASS, POLEBRIDGE, FLATHEAD LAKE, 
  FLATHEAD VALLEY, MISSION VALLEY, AND POLSON

$$

MTZ007-122100-
/O.NEW.KMSO.WW.Y.0063.161212T0600Z-161213T0300Z/
200 PM MST SUN DEC 11 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
8 PM MST MONDAY...

* IMPACTS/TIMING: OCCASIONAL HEAVY SNOW AND BLOWING SNOW WILL
  DEVELOP LATE TONIGHT AND CONTINUE MONDAY CAUSING HAZARDOUS
  TRAVEL CONDITIONS.

* SNOW ACCUMULATIONS: 3 TO 6 INCHES.

* LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 
  GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS

$$

MTZ001-122100-
/O.EXB.KMSO.WW.Y.0062.161212T0000Z-161213T0300Z/
200 PM MST SUN DEC 11 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
8 PM MST MONDAY...

* IMPACTS/TIMING: OCCASIONAL INTENSE SNOWFALL AND BLOWING SNOW
  WILL DEVELOP THIS EVENING AND CONTINUE MONDAY CAUSING HAZARDOUS
  TRAVEL CONDITIONS.

* SNOW ACCUMULATIONS: 2 TO 5 INCHES.

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, 
  HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND 
  HIGHWAY 93 EUREKA TO WHITEFISH

$$

IDZ006-MTZ006-122100-
/O.EXT.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
200 PM MST SUN DEC 11 2016 /100 PM PST SUN DEC 11 2016/

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 PM MST /7 PM
PST/ MONDAY...

* IMPACTS/TIMING: SNOW WILL CONTINUE IN THE CLEARWATER AND
  BITTERROOT MOUNTAINS. MANY ROADS ARE ALREADY IN POOR CONDITION
  WITH COMPACTED SNOW AND ICE, SO THIS WILL ONLY EXACERBATE
  CONDITIONS.

* SNOW ACCUMULATIONS: 4 TO 9 INCHES.

* LOCATIONS IMPACTED INCLUDE: DIXIE, ELK CITY, HIGHWAY 12 LOWELL 
  TO LOLO PASS, HIGHWAY 93 SULA TO LOST TRAIL PASS, AND LOLO PASS

$$

MTZ005-122100-
/O.EXT.KMSO.WS.A.0006.161212T0600Z-161213T0300Z/
200 PM MST SUN DEC 11 2016

...WINTER STORM WATCH NOW IN EFFECT FROM 11 PM MST THIS EVENING
THROUGH MONDAY EVENING FOR BITTERROOT VALLEY AND MISSOULA...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE
  CONTINENTAL DIVIDE AND INTO THE NORTHERN ROCKIES MONDAY. THE
  COMBINATION OF GUSTY WINDS, FRESHLY FALLEN SNOW AND PERIODS OF
  ADDITIONAL HEAVY SNOW ALONG THE ARCTIC BOUNDARY COULD LEAD TO
  DANGEROUS TRAVEL CONDITIONS MONDAY.

* SNOW ACCUMULATIONS: 2 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS 
  POSSIBLE. 

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH WILL BE
  DEVELOPING AS THE ARCTIC BOUNDARY SHIFTS SOUTH AND WEST MONDAY.
  GUSTS WILL FREQUENTLY REACH 30 MPH WITH OCCASIONAL 40 MPH
  READINGS POSSIBLE IN THE MISSOULA VALLEY. 

$$
037 
WWUS45 KMSO 112306
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
406 PM MST SUN DEC 11 2016

MTZ005-122315-
/O.UPG.KMSO.WS.A.0006.161212T0600Z-161213T0300Z/
/O.EXB.KMSO.WS.W.0008.161212T0400Z-161213T0300Z/
406 PM MST SUN DEC 11 2016

...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 PM
MST MONDAY FOR BITTERROOT VALLEY AND MISSOULA...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE
  CONTINENTAL DIVIDE AND INTO THE NORTHERN ROCKIES MONDAY. THE
  COMBINATION OF GUSTY WINDS, FRESHLY FALLEN SNOW AND PERIODS OF
  ADDITIONAL HEAVY SNOW ALONG THE ARCTIC BOUNDARY WILL LEAD TO
  DANGEROUS TRAVEL CONDITIONS MONDAY, ESPECIALLY IN MISSOULA FOR
  THE MONDAY MORNING COMMUTE.


* SNOW ACCUMULATIONS: 2 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS 
  POSSIBLE. 

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH WILL BE
  DEVELOPING AS THE ARCTIC BOUNDARY SHIFTS SOUTH AND WEST MONDAY.
  GUSTS WILL FREQUENTLY REACH 30 MPH WITH OCCASIONAL 40 MPH
  READINGS POSSIBLE IN THE MISSOULA VALLEY. 

$$

IDZ005-MTZ004-122315-
/O.CON.KMSO.WS.W.0008.161212T0000Z-161213T0300Z/
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161212T0000Z/
406 PM MST SUN DEC 11 2016 /306 PM PST SUN DEC 11 2016/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM
PST/ THIS AFTERNOON...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ MONDAY...

* IMPACTS/TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE 
  LATE SUNDAY INTO MONDAY. I-90 LOOKOUT PASS AND US-93 EVARO 
  HILL WILL BE ESPECIALLY HARD HIT WITH HEAVY SNOW, LOW 
  VISIBILITIES AND TREACHEROUS TRAVEL. 

* LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO 
  HEADQUARTERS, PIERCE, EVARO HILL, HIGHWAY 200 THOMPSON FALLS 
  TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I-90 LOOKOUT 
  PASS TO HAUGAN

$$

MTZ002-003-122315-
/O.CON.KMSO.WS.W.0008.161212T0000Z-161213T0300Z/
406 PM MST SUN DEC 11 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY...

* IMPACTS/TIMING: ARCTIC AIR WILL POUR ACROSS THE CONTINENTAL 
  DIVIDE LATE SUNDAY INTO EARLY MONDAY. GUSTY WINDS, BLOWING 
  SNOW AND ADDITIONAL HEAVY SNOW WILL LEAD TO DANGEROUS TRAVEL 
  CONDITIONS, ESPECIALLY DURING THE OVERNIGHT AND EARLY MORNING 
  HOURS MONDAY. 

* SNOW ACCUMULATIONS: AN ADDITIONAL 3 TO 7 INCHES THROUGHOUT THE 
  VALLEYS WITH UP TO ANOTHER FOOT THROUGHOUT THE HIGHER TERRAIN. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL BE 
  DEVELOPING AND CAUSE WIND CHILLS OF 20 -TO 30 -DEGREES. 
  FREQUENT GUSTS TO 40 MPH ARE POSSIBLE WITH OCCASIONAL GUSTS TO 
  NEAR 50 MPH ALONG US-2 AND THROUGH BAD ROCK CANYON. 

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 
  BIGFORK TO SWAN LAKE, MARIAS PASS, POLEBRIDGE, FLATHEAD LAKE, 
  FLATHEAD VALLEY, MISSION VALLEY, AND POLSON

$$

MTZ043-122315-
/O.CON.KMSO.WS.W.0008.161212T0600Z-161213T0300Z/
406 PM MST SUN DEC 11 2016

...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 8 PM MST MONDAY...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE 
  CONTINENTAL DIVIDE OVERNIGHT TONIGHT INTO EARLY MONDAY. 
  BLOWING SNOW AND ADDITIONAL HEAVY SNOWFALL WILL LEAD TO 
  DANGEROUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 8 TO 16 INCHES.

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH. GUSTS WILL 
  FREQUENTLY REACH 30 MPH WITH 40 MPH POSSIBLE NEAR HELLGATE 
  CANYON AND ALONG MT-200. 

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, 
  HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO 
  BEARMOUTH

$$

MTZ001-122315-
/O.CON.KMSO.WW.Y.0062.161212T0000Z-161213T0300Z/
406 PM MST SUN DEC 11 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

* IMPACTS/TIMING: OCCASIONAL INTENSE SNOWFALL AND BLOWING SNOW 
  WILL DEVELOP THIS EVENING AND CONTINUE MONDAY CAUSING 
  HAZARDOUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 2 TO 5 INCHES.

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, 
  HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND 
  HIGHWAY 93 EUREKA TO WHITEFISH

$$

MTZ007-122315-
/O.CON.KMSO.WW.Y.0063.161212T0600Z-161213T0300Z/
406 PM MST SUN DEC 11 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 8 PM MST MONDAY...

* IMPACTS/TIMING: OCCASIONAL HEAVY SNOW AND BLOWING SNOW WILL 
  DEVELOP LATE TONIGHT AND CONTINUE MONDAY CAUSING HAZARDOUS 
  TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 3 TO 6 INCHES.

* LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 
  GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS

$$

IDZ006-MTZ006-122315-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
406 PM MST SUN DEC 11 2016 /306 PM PST SUN DEC 11 2016/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ MONDAY...

* IMPACTS/TIMING: SNOW WILL CONTINUE IN THE CLEARWATER AND 
  BITTERROOT MOUNTAINS. MANY ROADS ARE ALREADY IN POOR CONDITION 
  WITH COMPACTED SNOW AND ICE, SO THIS WILL ONLY EXACERBATE 
  CONDITIONS. 

* SNOW ACCUMULATIONS: 4 TO 9 INCHES.

* LOCATIONS IMPACTED INCLUDE: DIXIE, ELK CITY, HIGHWAY 12 LOWELL 
  TO LOLO PASS, HIGHWAY 93 SULA TO LOST TRAIL PASS, AND LOLO PASS

$$
860 
WWUS45 KMSO 121010
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
310 AM MST MON DEC 12 2016

MTZ002-003-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
310 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: ARCTIC AIR WILL POUR ACROSS THE CONTINENTAL
  DIVIDE TODAY. GUSTY WINDS, BLOWING SNOW AND ADDITIONAL HEAVY
  SNOW WILL LEAD TO DANGEROUS TRAVEL CONDITIONS, ESPECIALLY DURING
  THE EARLY MORNING HOURS. 

* SNOW ACCUMULATIONS: AN ADDITIONAL 2 TO 5 INCHES THROUGHOUT THE 
  VALLEYS WITH UP TO ANOTHER FOOT THROUGHOUT THE HIGHER TERRAIN. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL CAUSE WIND
  CHILLS OF -20 TO -30 DEGREES. FREQUENT GUSTS TO 40 MPH ARE 
  POSSIBLE WITH OCCASIONAL GUSTS TO NEAR 50 MPH ALONG US-2 AND 
  THROUGH BAD ROCK CANYON. 

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 
  BIGFORK TO SWAN LAKE, MARIAS PASS, POLEBRIDGE, FLATHEAD LAKE, 
  FLATHEAD VALLEY, MISSION VALLEY, AND POLSON

$$

IDZ005-MTZ004-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
310 AM MST MON DEC 12 2016 /210 AM PST MON DEC 12 2016/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE
  TODAY. I-90 LOOKOUT PASS AND US-93 EVARO HILL WILL BE 
  ESPECIALLY HARD HIT WITH HEAVY SNOW, LOW VISIBILITIES AND 
  TREACHEROUS TRAVEL. 

* LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO 
  HEADQUARTERS, PIERCE, EVARO HILL, HIGHWAY 200 THOMPSON FALLS 
  TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I-90 LOOKOUT 
  PASS TO HAUGAN

$$

MTZ043-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
310 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE 
  CONTINENTAL DIVIDE OVERNIGHT TONIGHT INTO EARLY MONDAY. 
  BLOWING SNOW AND ADDITIONAL HEAVY SNOWFALL WILL LEAD TO 
  DANGEROUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 6 TO 12 ADDITIONAL INCHES.

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH. GUSTS WILL 
  FREQUENTLY REACH 30 MPH WITH 40 MPH POSSIBLE NEAR HELLGATE 
  CANYON AND ALONG MT-200. 

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, 
  HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO 
  BEARMOUTH

$$

MTZ005-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
310 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING FOR BITTERROOT VALLEY AND MISSOULA...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE
  CONTINENTAL DIVIDE AND INTO THE NORTHERN ROCKIES TODAY. THE
  COMBINATION OF GUSTY WINDS, FRESHLY FALLEN SNOW AND PERIODS OF
  ADDITIONAL HEAVY SNOW ALONG THE ARCTIC BOUNDARY WILL LEAD TO
  DANGEROUS TRAVEL CONDITIONS, ESPECIALLY IN MISSOULA FOR THE MORNING
  COMMUTE. 

* SNOW ACCUMULATIONS: 2 TO 5 ADDITIONAL INCHES WITH LOCALLY 
  HIGHER AMOUNTS POSSIBLE. 

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH WILL BE 
  DEVELOPING AS THE ARCTIC BOUNDARY SHIFTS SOUTH AND WEST 
  MONDAY. GUSTS WILL FREQUENTLY REACH 30 MPH WITH OCCASIONAL 40 
  MPH READINGS POSSIBLE IN THE MISSOULA VALLEY. 

$$

MTZ001-130300-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
310 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: OCCASIONAL INTENSE SNOWFALL AND BLOWING SNOW 
  WILL DEVELOP THIS EVENING AND CONTINUE MONDAY CAUSING 
  HAZARDOUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 1 TO 4 ADDITIONAL INCHES.

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, 
  HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND 
  HIGHWAY 93 EUREKA TO WHITEFISH

$$

IDZ006-MTZ006-130300-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
310 AM MST MON DEC 12 2016 /210 AM PST MON DEC 12 2016/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL CONTINUE IN THE CLEARWATER AND 
  BITTERROOT MOUNTAINS. MANY ROADS ARE ALREADY IN POOR CONDITION 
  WITH COMPACTED SNOW AND ICE, SO THIS WILL ONLY EXACERBATE 
  CONDITIONS. 

* SNOW ACCUMULATIONS: 4 TO 9 INCHES.

* LOCATIONS IMPACTED INCLUDE: DIXIE, ELK CITY, HIGHWAY 12 LOWELL 
  TO LOLO PASS, HIGHWAY 93 SULA TO LOST TRAIL PASS, AND LOLO PASS

$$

MTZ007-130300-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161213T0300Z/
310 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: OCCASIONAL HEAVY SNOW AND BLOWING SNOW WILL
  CONTINUE CAUSING HAZARDOUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 3 TO 6 INCHES.

* LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 
  GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS

$$
158 
WWUS45 KMSO 121323
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
623 AM MST MON DEC 12 2016

MTZ002-003-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
623 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: ARCTIC AIR WILL POUR ACROSS THE CONTINENTAL 
  DIVIDE TODAY. GUSTY WINDS, BLOWING SNOW AND ADDITIONAL HEAVY 
  SNOW WILL LEAD TO DANGEROUS TRAVEL CONDITIONS, ESPECIALLY 
  DURING THE EARLY MORNING HOURS. 

* SNOW ACCUMULATIONS: AN ADDITIONAL 2 TO 5 INCHES THROUGHOUT THE 
  VALLEYS WITH UP TO ANOTHER FOOT THROUGHOUT THE HIGHER TERRAIN. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL CAUSE 
  WIND CHILLS OF 20 -TO 30 -DEGREES. FREQUENT GUSTS TO 40 MPH 
  ARE POSSIBLE WITH OCCASIONAL GUSTS TO NEAR 50 MPH ALONG US-2 
  AND THROUGH BAD ROCK CANYON. 

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 
  BIGFORK TO SWAN LAKE, MARIAS PASS, POLEBRIDGE, FLATHEAD LAKE, 
  FLATHEAD VALLEY, MISSION VALLEY, AND POLSON

$$

IDZ005-MTZ004-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
623 AM MST MON DEC 12 2016 /523 AM PST MON DEC 12 2016/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE 
  TODAY. I-90 LOOKOUT PASS AND US-93 EVARO HILL WILL BE 
  ESPECIALLY HARD HIT WITH HEAVY SNOW, LOW VISIBILITIES AND 
  TREACHEROUS TRAVEL. 

* LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO 
  HEADQUARTERS, PIERCE, EVARO HILL, HIGHWAY 200 THOMPSON FALLS 
  TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I-90 LOOKOUT 
  PASS TO HAUGAN

$$

MTZ043-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
623 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE
  CONTINENTAL DIVIDE MONDAY. BLOWING SNOW AND ADDITIONAL HEAVY 
SNOWFALL WILL LEAD TO DANGEROUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 6 TO 12 ADDITIONAL INCHES.

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH. GUSTS WILL 
  FREQUENTLY REACH 30 MPH WITH 40 MPH POSSIBLE NEAR HELLGATE 
  CANYON AND ALONG MT-200. 

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, 
  HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO 
  BEARMOUTH

$$

MTZ005-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
623 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING FOR BITTERROOT VALLEY AND MISSOULA...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE
  CONTINENTAL DIVIDE AND INTO THE NORTHERN ROCKIES TODAY. THE
  COMBINATION OF GUSTY WINDS, FRESHLY FALLEN SNOW AND PERIODS OF
  ADDITIONAL HEAVY SNOW ALONG THE ARCTIC BOUNDARY WILL LEAD TO
  DANGEROUS TRAVEL CONDITIONS.

* SNOW ACCUMULATIONS: 2 TO 5 ADDITIONAL INCHES WITH LOCALLY 
  HIGHER AMOUNTS POSSIBLE. 

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH WILL BE 
  DEVELOPING AS THE ARCTIC BOUNDARY SHIFTS SOUTH AND WEST 
  MONDAY. GUSTS WILL FREQUENTLY REACH 30 MPH WITH OCCASIONAL 40 
  MPH READINGS POSSIBLE IN THE MISSOULA VALLEY. 

$$

IDZ008-122200-
/O.EXB.KMSO.WW.Y.0063.000000T0000Z-161212T2200Z/
523 AM PST MON DEC 12 2016

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON FOR HIGHWAY 95 SLATE CREEK TO RIGGINS AND WHITE BIRD
GRADE...

* IMPACTS/TIMING: OCCASIONAL MODERATE TO HEAVY SNOW MAY CAUSE
  HAZARDOUS TRAVEL CONDITIONS TODAY, ESPECIALLY OVER WHITE BIRD
  GRADE.

* SNOW ACCUMULATIONS: 2 TO 6 INCHES OVER THE GRADE. LESSER AMOUNTS
  AT LOWER ELEVATIONS.

$$

MTZ001-130300-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
623 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: OCCASIONAL INTENSE SNOWFALL AND BLOWING SNOW
  WILL CAUSE HAZARDOUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 1 TO 4 ADDITIONAL INCHES.

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, 
  HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND 
  HIGHWAY 93 EUREKA TO WHITEFISH

$$

IDZ006-MTZ006-130300-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
623 AM MST MON DEC 12 2016 /523 AM PST MON DEC 12 2016/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL CONTINUE IN THE CLEARWATER AND 
  BITTERROOT MOUNTAINS. MANY ROADS ARE ALREADY IN POOR CONDITION 
  WITH COMPACTED SNOW AND ICE, SO THIS WILL ONLY EXACERBATE 
  CONDITIONS. 

* SNOW ACCUMULATIONS: 4 TO 9 INCHES.

* LOCATIONS IMPACTED INCLUDE: DIXIE, ELK CITY, HIGHWAY 12 LOWELL 
  TO LOLO PASS, HIGHWAY 93 SULA TO LOST TRAIL PASS, AND LOLO PASS

$$

MTZ007-130300-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161213T0300Z/
623 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: OCCASIONAL HEAVY SNOW AND BLOWING SNOW WILL 
  CONTINUE CAUSING HAZARDOUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 3 TO 6 INCHES.

* LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 
  GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS

$$
091 
WWUS45 KMSO 121417
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
717 AM MST MON DEC 12 2016

MTZ003-122200-
/O.CAN.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
/O.EXA.KMSO.WW.Y.0063.000000T0000Z-161212T2200Z/
717 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER
STORM WARNING. 

* IMPACTS/TIMING: THE ARCTIC FRONT HAS BEEN SLOW TO MOVE OVER THE
CONTINENTAL DIVIDE AND AS A RESULT, THE WARNING HAS BEEN 
DOWNGRADED TO A WINTER WEATHER ADVISORY. WE ARE STILL EXPECTING 
THE ARCTIC TO IMPACT THE FLATHEAD VALLEY LATER THIS MORNING. 
EXPECT OCCASIONAL MODERATE TO HEAVY SNOW, WHICH MAY CAUSE 
HAZARDOUS TRAVEL CONDITIONS AT TIMES. 

* SNOW ACCUMULATIONS: ADDITIONAL 2 TO 4 INCHES WITH THE FRONTAL
  PASSAGE LATER THIS MORNING. BLOWING AND DRIFTING SNOW WILL BE
  POSSIBLE.

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL CAUSE WIND
  CHILLS TO BE BELOW ZERO. FREQUENT GUSTS TO 40 MPH POSSIBLE 
ALONG US-2 AND THROUGH BAD ROCK CANYON. 

$$

MTZ005-121530-
/O.CAN.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
717 AM MST MON DEC 12 2016

...WINTER STORM WARNING IS CANCELLED FOR ...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER
STORM WARNING. 

STRONG WESTERLY FLOW ALOFT HAS SLOWED THE PROGRESSION OF THE 
EASTERLY ARCTIC FLOW, WHICH IN TURN DELAYED THE ARRIVAL OF HEAVY SNOW
AND STRONG WINDS INTO THE MISSOULA AND BITTERROOT VALLEYS THIS 
MORNING. THE WINTER STORM WARNING HAS BEEN CANCELLED AS A 
RESULT...HOWEVER: A PROLONGED PERIOD OF SNOWFALL IS STILL VERY 
POSSIBLE LATER TODAY THROUGH TONIGHT. NEW WINTER WEATHER HEADLINES
MAY BE ISSUED LATER TODAY TO ACCOUNT FOR IMPACTS ASSOCIATED WITH 
THIS POTENTIAL. STAY TUNED.

$$

MTZ002-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
717 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: ARCTIC AIR WILL POUR ACROSS THE CONTINENTAL 
  DIVIDE TODAY. GUSTY WINDS, BLOWING SNOW AND ADDITIONAL HEAVY 
  SNOW WILL LEAD TO DANGEROUS TRAVEL CONDITIONS, ESPECIALLY 
  DURING THE EARLY MORNING HOURS. 

* SNOW ACCUMULATIONS: AN ADDITIONAL 2 TO 5 INCHES THROUGHOUT THE 
  VALLEYS WITH UP TO ANOTHER FOOT THROUGHOUT THE HIGHER TERRAIN. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL CAUSE 
  WIND CHILLS OF 20 TO -30 DEGREES. -FREQUENT GUSTS TO 40 MPH 
  ARE POSSIBLE WITH OCCASIONAL GUSTS TO NEAR 50 MPH ALONG US-2 
  AND THROUGH BAD ROCK CANYON. 

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 
  BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE

$$

IDZ005-MTZ004-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
717 AM MST MON DEC 12 2016 /617 AM PST MON DEC 12 2016/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE
  TODAY. I-90 LOOKOUT PASS AND US-93 EVARO HILL WILL BE ESPECIALLY
  HARD HIT WITH HEAVY SNOW, LOW VISIBILITIES AND TREACHEROUS
  TRAVEL. HIGHWAY 11 IN CLEARWATER COUNTY IDAHO SHOULD ALSO EXPECT
  A SIMILAR DEGRADATION IN CONDITIONS. 

* LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO 
  HEADQUARTERS, PIERCE, EVARO HILL, HIGHWAY 200 THOMPSON FALLS 
  TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I-90 LOOKOUT 
  PASS TO HAUGAN

$$

MTZ043-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
717 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE 
  CONTINENTAL DIVIDE MONDAY. BLOWING SNOW AND ADDITIONAL HEAVY 
  SNOWFALL WILL LEAD TO DANGEROUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 6 TO 12 ADDITIONAL INCHES.

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH. GUSTS WILL 
  FREQUENTLY REACH 30 MPH WITH 40 MPH POSSIBLE NEAR HELLGATE 
  CANYON AND ALONG MT-200. 

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, 
  HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO 
  BEARMOUTH

$$

MTZ001-130300-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
717 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: OCCASIONAL INTENSE SNOWFALL AND BLOWING SNOW 
  WILL CAUSE HAZARDOUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 1 TO 4 ADDITIONAL INCHES.

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, 
  HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND 
  HIGHWAY 93 EUREKA TO WHITEFISH

$$

IDZ006-MTZ006-130300-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
717 AM MST MON DEC 12 2016 /617 AM PST MON DEC 12 2016/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL CONTINUE IN THE CLEARWATER AND 
  BITTERROOT MOUNTAINS. MANY ROADS ARE ALREADY IN POOR CONDITION 
  WITH COMPACTED SNOW AND ICE, SO THIS WILL ONLY EXACERBATE 
  CONDITIONS. 

* SNOW ACCUMULATIONS: 4 TO 9 INCHES.

* LOCATIONS IMPACTED INCLUDE: DIXIE, ELK CITY, HIGHWAY 12 LOWELL 
  TO LOLO PASS, HIGHWAY 93 SULA TO LOST TRAIL PASS, AND LOLO PASS

$$

MTZ007-130300-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161213T0300Z/
717 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: OCCASIONAL HEAVY SNOW AND BLOWING SNOW WILL 
  CONTINUE CAUSING HAZARDOUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 3 TO 6 INCHES.

* LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 
  GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS

$$

IDZ008-122200-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161212T2200Z/
617 AM PST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON FOR HIGHWAY 95 SLATE CREEK TO RIGGINS AND WHITE BIRD
GRADE...

* IMPACTS/TIMING: OCCASIONAL MODERATE TO HEAVY SNOW MAY CAUSE 
  HAZARDOUS TRAVEL CONDITIONS TODAY, ESPECIALLY OVER WHITE BIRD 
  GRADE. 

* SNOW ACCUMULATIONS: 2 TO 6 INCHES OVER THE GRADE. LESSER 
  AMOUNTS AT LOWER ELEVATIONS. 

$$
273 
WWUS45 KMSO 121558
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
858 AM MST MON DEC 12 2016

MTZ002-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
858 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: ARCTIC AIR WILL POUR ACROSS THE CONTINENTAL 
  DIVIDE TODAY. GUSTY WINDS, BLOWING SNOW AND ADDITIONAL HEAVY 
  SNOW WILL LEAD TO DANGEROUS TRAVEL CONDITIONS, ESPECIALLY 
  DURING THE EARLY MORNING HOURS. 

* SNOW ACCUMULATIONS: AN ADDITIONAL 2 TO 5 INCHES THROUGHOUT THE 
  VALLEYS WITH UP TO ANOTHER FOOT THROUGHOUT THE HIGHER TERRAIN. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL CAUSE 
  WIND CHILLS OF 20 TO 30 -DEGREES. FREQUENT -GUSTS TO 40 MPH 
  ARE POSSIBLE WITH OCCASIONAL GUSTS TO NEAR 50 MPH ALONG US-2 
  AND THROUGH BAD ROCK CANYON. 

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 
  BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE

$$

IDZ005-MTZ004-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
858 AM MST MON DEC 12 2016 /758 AM PST MON DEC 12 2016/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE 
  TODAY. I-90 LOOKOUT PASS AND US-93 EVARO HILL WILL BE 
  ESPECIALLY HARD HIT WITH HEAVY SNOW, LOW VISIBILITIES AND 
  TREACHEROUS TRAVEL. HIGHWAY 11 IN CLEARWATER COUNTY IDAHO 
  SHOULD ALSO EXPECT A SIMILAR DEGRADATION IN CONDITIONS. 

* LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO 
  HEADQUARTERS, PIERCE, EVARO HILL, HIGHWAY 200 THOMPSON FALLS 
  TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I-90 LOOKOUT 
  PASS TO HAUGAN

$$

MTZ043-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
858 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE 
  CONTINENTAL DIVIDE MONDAY. BLOWING SNOW AND ADDITIONAL HEAVY 
  SNOWFALL WILL LEAD TO DANGEROUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 6 TO 12 ADDITIONAL INCHES.

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH. GUSTS WILL 
  FREQUENTLY REACH 30 MPH WITH 40 MPH POSSIBLE NEAR HELLGATE 
  CANYON AND ALONG MT-200. 

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, 
  HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO 
  BEARMOUTH

$$

IDZ007-122200-
/O.EXA.KMSO.WW.Y.0063.000000T0000Z-161212T2200Z/
758 AM PST MON DEC 12 2016

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON...

* IMPACTS/TIMING: OCCASIONAL MODERATE TO HEAVY SNOW MAY CAUSE
  HAZARDOUS TRAVEL CONDITIONS TODAY, ESPECIALLY IN GRANGEVILLE AND
  THE GENERAL CAMAS PRAIRIE VICINITY. 

* SNOW ACCUMULATIONS: 2 TO 5 INCHES.

$$

MTZ001-130300-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
858 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: OCCASIONAL INTENSE SNOWFALL AND BLOWING SNOW 
  WILL CAUSE HAZARDOUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 1 TO 4 ADDITIONAL INCHES.

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, 
  HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND 
  HIGHWAY 93 EUREKA TO WHITEFISH

$$

IDZ006-MTZ006-130300-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
858 AM MST MON DEC 12 2016 /758 AM PST MON DEC 12 2016/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL CONTINUE IN THE CLEARWATER AND 
  BITTERROOT MOUNTAINS. MANY ROADS ARE ALREADY IN POOR CONDITION 
  WITH COMPACTED SNOW AND ICE, SO THIS WILL ONLY EXACERBATE 
  CONDITIONS. 

* SNOW ACCUMULATIONS: 4 TO 9 INCHES.

* LOCATIONS IMPACTED INCLUDE: DIXIE, ELK CITY, HIGHWAY 12 LOWELL 
  TO LOLO PASS, HIGHWAY 93 SULA TO LOST TRAIL PASS, AND LOLO PASS

$$

MTZ007-130300-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161213T0300Z/
858 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: OCCASIONAL HEAVY SNOW AND BLOWING SNOW WILL 
  CONTINUE CAUSING HAZARDOUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 3 TO 6 INCHES.

* LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 
  GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS

$$

IDZ008-122200-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161212T2200Z/
758 AM PST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON FOR HIGHWAY 95 SLATE CREEK TO RIGGINS AND WHITE BIRD
GRADE...

* IMPACTS/TIMING: OCCASIONAL MODERATE TO HEAVY SNOW MAY CAUSE 
  HAZARDOUS TRAVEL CONDITIONS TODAY, ESPECIALLY OVER WHITE BIRD 
  GRADE. 

* SNOW ACCUMULATIONS: 2 TO 6 INCHES OVER THE GRADE. LESSER 
  AMOUNTS AT LOWER ELEVATIONS. 

$$

MTZ003-122200-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161212T2200Z/
858 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER
STORM WARNING.

* IMPACTS/TIMING: THE ARCTIC FRONT HAS BEEN SLOW TO MOVE OVER 
  THE CONTINENTAL DIVIDE AND AS A RESULT, THE WARNING HAS BEEN 
  DOWNGRADED TO A WINTER WEATHER ADVISORY. WE ARE STILL 
  EXPECTING THE ARCTIC TO IMPACT THE FLATHEAD VALLEY LATER THIS 
  MORNING. EXPECT OCCASIONAL MODERATE TO HEAVY SNOW, WHICH MAY 
  CAUSE HAZARDOUS TRAVEL CONDITIONS AT TIMES.

* SNOW ACCUMULATIONS: ADDITIONAL 2 TO 4 INCHES WITH THE FRONTAL 
  PASSAGE LATER THIS MORNING. BLOWING AND DRIFTING SNOW WILL BE 
  POSSIBLE. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL CAUSE 
  WIND CHILLS TO BE BELOW ZERO. FREQUENT GUSTS TO 40 MPH 
  POSSIBLE ALONG US-2 AND THROUGH BAD ROCK CANYON. 

$$
715 
WWUS45 KMSO 121826 AAC
WSWMSO

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE MISSOULA MT
1126 AM MST MON DEC 12 2016

MTZ001-121930-
/O.CAN.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
1126 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY IS CANCELLED FOR ...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

$$

MTZ002-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
1126 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: ARCTIC AIR WILL POUR ACROSS THE CONTINENTAL 
  DIVIDE TODAY. GUSTY WINDS, BLOWING SNOW AND ADDITIONAL HEAVY 
  SNOW WILL LEAD TO DANGEROUS TRAVEL CONDITIONS, ESPECIALLY 
  DURING THE EARLY MORNING HOURS. 

* SNOW ACCUMULATIONS: AN ADDITIONAL 2 TO 5 INCHES THROUGHOUT THE 
  VALLEYS WITH UP TO ANOTHER FOOT THROUGHOUT THE HIGHER TERRAIN. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL CAUSE
  BELOW ZERO WIND CHILLS.

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 
  BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE

$$

IDZ005-MTZ004-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
1126 AM MST MON DEC 12 2016 /1026 AM PST MON DEC 12 2016/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE
  TODAY. I-90 LOOKOUT PASS AND US-93 EVARO HILL WILL BE 
ESPECIALLY HARD HIT WITH HEAVY SNOW, LOW VISIBILITIES AND 
TREACHEROUS TRAVEL. HIGHWAY 11 IN CLEARWATER COUNTY IDAHO SHOULD
ALSO EXPECT A SIMILAR DEGRADATION IN CONDITIONS. 

* LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO 
  HEADQUARTERS, PIERCE, EVARO HILL, HIGHWAY 200 THOMPSON FALLS 
  TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I-90 LOOKOUT 
  PASS TO HAUGAN

$$

MTZ043-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
1126 AM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: CONTINUED SNOWFALL AND GUSTY WINDS WILL LEAD TO
DANGEROUS TRAVEL CONDITIONS. 

* SNOW ACCUMULATIONS: 6 TO 12 ADDITIONAL INCHES.

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH.  

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, 
  HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO 
  BEARMOUTH

$$

IDZ006-MTZ006-130300-
/O.CON.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
1126 AM MST MON DEC 12 2016 /1026 AM PST MON DEC 12 2016/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...

* IMPACTS/TIMING: SNOW WILL CONTINUE IN THE CLEARWATER AND
  BITTERROOT MOUNTAINS. TRAVEL WILL BE DIFFICULT AT TIMES OVER 
MOUNTAIN PASS ROADWAYS.

* SNOW ACCUMULATIONS: TOTAL OF 4 TO 9 INCHES.

* LOCATIONS IMPACTED INCLUDE: DIXIE, ELK CITY, HIGHWAY 12 LOWELL 
  TO LOLO PASS, HIGHWAY 93 SULA TO LOST TRAIL PASS, AND LOLO PASS

$$

MTZ007-130300-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161213T0300Z/
1126 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: OCCASIONAL SNOW AND BLOWING SNOW WILL CONTINUE
  CAUSING DIFFICULT TRAVEL CONDITIONS...ESPECIALLY OVER MOUNTAIN
  PASSES.

* SNOW ACCUMULATIONS: TOTAL OF 3 TO 6 INCHES.

* LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 
  GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS

$$

IDZ007-008-122200-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161212T2200Z/
1026 AM PST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON...

* IMPACTS/TIMING: OCCASIONAL MODERATE TO HEAVY SNOW MAY CAUSE 
  HAZARDOUS TRAVEL CONDITIONS TODAY, ESPECIALLY OVER WHITE BIRD 
  GRADE. 

* SNOW ACCUMULATIONS: 2 TO 6 INCHES OVER THE GRADE. LESSER 
  AMOUNTS AT LOWER ELEVATIONS. 

$$

MTZ003-122200-
/O.CON.KMSO.WW.Y.0063.000000T0000Z-161212T2200Z/
1126 AM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER
STORM WARNING.

* IMPACTS/TIMING: THE ARCTIC FRONT HAS BEEN SLOW TO MOVE OVER THE
  CONTINENTAL DIVIDE AND AS A RESULT, THE WARNING HAS BEEN
  DOWNGRADED TO A WINTER WEATHER ADVISORY. EXPECT OCCASIONAL 
MODERATE TO HEAVY SNOW, WHICH MAY CAUSE HAZARDOUS TRAVEL 
CONDITIONS AT TIMES. 

* SNOW ACCUMULATIONS: TOTAL OF 2 TO 4 INCHES. 

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL CAUSE
  BELOW ZERO WIND CHILLS. FREQUENT GUSTS TO 40 MPH POSSIBLE ALONG
US-2 AND THROUGH BAD ROCK CANYON. 

$$
099 
WWUS45 KMSO 122126
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
226 PM MST MON DEC 12 2016

IDZ005-MTZ004-122230-
/O.CAN.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
226 PM MST MON DEC 12 2016 /126 PM PST MON DEC 12 2016/

...WINTER STORM WARNING IS CANCELLED FOR ...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER
STORM WARNING. 

$$

MTZ007-122230-
/O.CAN.KMSO.WW.Y.0063.000000T0000Z-161213T0300Z/
226 PM MST MON DEC 12 2016

...WINTER WEATHER ADVISORY IS CANCELLED FOR ...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER
WEATHER ADVISORY. 


$$

IDZ006-MTZ006-122230-
/O.CAN.KMSO.WW.Y.0062.000000T0000Z-161213T0300Z/
226 PM MST MON DEC 12 2016 /126 PM PST MON DEC 12 2016/

...WINTER WEATHER ADVISORY IS CANCELLED FOR ...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER
WEATHER ADVISORY. 



$$

IDZ007-008-MTZ003-122230-
/O.CAN.KMSO.WW.Y.0063.000000T0000Z-161212T2200Z/
226 PM MST MON DEC 12 2016 /126 PM PST MON DEC 12 2016/

...WINTER WEATHER ADVISORY IS CANCELLED FOR ...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER
WEATHER ADVISORY. 



$$

MTZ002-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
226 PM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: ADDITIONAL SNOWFALL AND GUSTY WINDS WILL 
CONTINUE TO CAUSE DANGEROUS TRAVEL CONDITIONS.

* SNOW ACCUMULATIONS: AN ADDITIONAL 2 TO 3 INCHES.

* WINDS: NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL CAUSE 
  BELOW ZERO WIND CHILLS. 

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 
  BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE

$$

MTZ043-130300-
/O.CON.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
226 PM MST MON DEC 12 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* IMPACTS/TIMING: ADDITIONAL SNOWFALL AND GUSTY WINDS WILL 
CONTINUE TO CAUSE DANGEROUS TRAVEL CONDITIONS.

* ADDITIONAL SNOW ACCUMULATIONS: 2 TO 4 INCHES.

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH.

* LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, 
  HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO 
  BEARMOUTH

$$
370 
WWUS45 KMSO 130238
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
738 PM MST MON DEC 12 2016

MTZ002-130345-
/O.EXP.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
738 PM MST MON DEC 12 2016

...WINTER STORM WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 
  BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE

$$

MTZ043-130345-
/O.EXP.KMSO.WS.W.0008.000000T0000Z-161213T0300Z/
738 PM MST MON DEC 12 2016

...WINTER STORM WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...


* LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, 
  HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO 
  BEARMOUTH

$$

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 11, 2:00 PM MSTWinter Weather AdvisoryMSODeer Lodge, Flathead, Granite, Lake, Powell, Sanders and 1 more24 hr

Nearby

Winter Storm Warnings in Montana, 2016Winter Storm Warnings in Idaho, 2016Every winter storm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.