Alert archive / Montana / Wind Chill Warnings in 2013

Wind Chill Warning 1, NWS Missoula, MT

December 5, 201311 counties in Montana

NWS Missoula, MT issued this wind chill warning at Dec 5, 2013, 4:35 AM MST for 11 counties in Montana. It took effect at Dec 5, 2013, 5:00 PM MST. It was in force for 48 hr. 33 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 5, 2013, 4:35 AM MST (11:35 UTC)
In effect from
Dec 5, 2013, 5:00 PM MST
Expired
Dec 7, 2013, 5:00 PM MST
In force
48 hr
Issued by
NWS Missoula, MT

Counties Deer Lodge County, MT, Flathead County, MT, Granite County, MT, Lake County, MT, Lincoln County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT, Silver Bow County, MT

The radar

The Missoula radar (KMSX), 2 km from the middle of the area, began a volume at 11:37 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 6, 1:56 AM MSTEXTR WIND CHILL -294 Sse Porters Corner, MTMESONET STATION 2 W GEORGETOWN /MTGTL/
Dec 6, 2:28 AM MSTEXTR WIND CHILL -30Essex, MTMESONET STATION ESSEX /MTESX/
Dec 6, 3:53 AM MSTEXTR WIND CHILL -221 N Polebridge, MTMESONET STATION 1 NNE POLEBRIDGE /POEM8/
Dec 6, 4:00 AM MSTEXTR WIND CHILL -385 Sse Finn, MTMESONET STATION 5 SSE FINN /MTAVN/
Dec 6, 4:24 AM MSTEXTR WIND CHILL -387 N Helmville, MTMESONET STATION 7 N HELMVILLE /MTHLM/
Dec 6, 4:30 AM MSTEXTR WIND CHILL -222 Ene Bearmouth, MTMESONET STATION 1 ENE BEARMOUTH /MTBRM/
Dec 6, 5:00 AM MSTEXTR WIND CHILL -294 Nnw Racetrack, MTMESONET STATION 4 NNW RACETRACK /DRLM/
Dec 6, 6:11 AM MSTEXTR WIND CHILL -36Garrison, MTMESONET STATION GARRISON /MTGAR/
Dec 6, 6:15 AM MSTEXTR WIND CHILL -251 Ssw Philipsburg, MTMESONET STATION 1 SSW PHILIPSBURG /PHGM8/
Dec 6, 6:30 AM MSTEXTR WIND CHILL -232 Ene Clearwater, MTMESONET STATION 2 ENE CLEARWATER /TS856/
Dec 6, 6:41 AM MSTEXTR WIND CHILL -325 Ne Arlee, MTMESONET STATION PISTOL CREEK RAWS /PSTM8/
Dec 6, 6:42 AM MSTEXTR WIND CHILL -221 E Blacktail, MTMESONET STATION FIELDING /FIEM8/
Dec 6, 6:53 AM MSTEXTR WIND CHILL -273 Sse Butte, MTASOS STATION BUTTE-MOONEY AP /BTM/
Dec 6, 6:53 AM MSTEXTR WIND CHILL -196 Nw Missoula, MTASOS STATION MISSOULA, MT /MSO/
Dec 6, 6:55 AM MSTEXTR WIND CHILL -241 Wsw La Salle, MTASOS STATION KALISPELL GLACIER AP /GPI/
Dec 6, 6:59 AM MSTEXTR WIND CHILL -204 N Kila, MTMESONET STATION 4 N KILA /DW1223/
Dec 6, 7:00 AM MSTEXTR WIND CHILL -231 Se Olney, MTMESONET STATION STILLWATER RAWS /TR543/
Dec 6, 7:15 AM MSTEXTR WIND CHILL -203 Nw Marion, MTMESONET STATION BOORMAN RAWS /BOOM8/
Dec 6, 7:53 AM MSTEXTR WIND CHILL -253 Nw Taft, MTASOS STATION MULLAN PASS VOR /MLP/
Dec 6, 8:01 AM MSTEXTR WIND CHILL -241 Wsw East Missoula, MTNWS EMPLOYEE MEASURED -24 WIND CHILL.
Dec 6, 8:18 AM MSTSNOW 33 Nw Polson, MTTHE ROAD DEPARTMENT FOR HIGHWAY 93 REPORTS A TRACE TO 3 INCHES OF NEW SNOW OVERNIGHT DUE TO LAKE EFFECT BETWEEN MM 57 AND 69. SNOW DURATION 12 HOURS
Dec 6, 12:49 PM MSTEXTR WIND CHILL -405 Sse Finn, MTMESONET STATION 5 SSE FINN /MTAVN/
Dec 6, 2:07 PM MSTEXTR WIND CHILL -303 Sse Butte, MTASOS STATION BUTTE-MOONEY AP /BTM/
Dec 6, 3:25 PM MSTEXTR WIND CHILL -264 Sse Porters Corner, MTMESONET STATION 2 W GEORGETOWN /MTGTL/
Dec 6, 4:53 PM MSTEXTR WIND CHILL -273 Nw Taft, MTASOS STATION MULLAN PASS VOR /MLP/
Dec 6, 4:59 PM MSTEXTR WIND CHILL -201 E Keystone, MTMESONET STATION KEYSTONE /PRDM8/
Dec 7, 2:53 AM MSTEXTR WIND CHILL -286 Nw Missoula, MTASOS STATION MISSOULA, MT /MSO/
Dec 7, 7:46 AM MSTEXTR WIND CHILL -47Essex, MTMESONET STATION ESSEX /MTESX/
Dec 7, 7:49 AM MSTEXTR WIND CHILL -39Evergreen, MTMESONET STATION EVERGREEN /KALIS/
Dec 7, 7:54 AM MSTEXTREME COLD -415 Ene Blacktail, MTMARIAS PASS HADS WEATHER SENSOR AT 5233 FT. EXTREME COLD DURATION 9 HOURS 15 MINUTES
Dec 7, 9:02 AM MSTEXTR WIND CHILL -233 Ese Thompson Falls, MTMESONET STATION 3 ESE THOMPSON FALLS /THAM8/
Dec 7, 9:57 AM MSTEXTREME COLD -401 Se Blacktail, MTCURRENT TEMPERATURE IS -36 DEG. F (-37.8 DEG. C). THEIR PIPES FROZE YESTERDAY. EXTREME COLD DURATION 10 HOURS
Dec 7, 12:55 PM MSTSNOW 0.3Polson, MTA LAKE EFFECT SNOW BAND BROUGHT LIGHT SNOW TO THE CITY OF POLSON TODAY. VERY FINE GRAINS OF LIGHT SNOW CONTINUES TO FALL. A FEW AUTO ACCIDENTS HAVE BEEN REPORTED DUE TO THE SLICK ROADS. SNOW DURATION 4 HOURS

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 00:00Z, 11.6 hours before the alert went out and 195 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 00:00Z on 2013-12-05Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2013-12-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
1311 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS45 KMSO 051135
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
435 AM MST THU DEC 5 2013

...DANGEROUSLY COLD WIND CHILLS FRIDAY AND FRIDAY NIGHT...

MTZ002-007-043-052200-
/O.UPG.KMSO.WC.A.0001.131206T0000Z-131207T1800Z/
/O.NEW.KMSO.WC.W.0001.131206T0000Z-131207T1800Z/
WEST GLACIER REGION-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
435 AM MST THU DEC 5 2013

...WIND CHILL WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM
MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM
MST SATURDAY. THE WIND CHILL WATCH IS NO LONGER IN EFFECT. 

* IMPACTS/TIMING: A STRONG ARCTIC FRONT WILL BRING WINDS OF 10 TO
  20 MPH STARTING TONIGHT AND LASTING THROUGH SATURDAY MORNING.
  EXTREMELY COLD WIND CHILL WILL LEAD TO A DANGER OF FROSTBITE
  ON UNPROTECTED SKIN IN AS LITTLE AS 10 MINUTES

* WIND CHILL VALUES: BETWEEN 25 AND 40 DEGREES BELOW
  ZERO...LOCALLY APPROACHING 50 BELOW ZERO AT TIMES IN GLACIER
  NATIONAL PARK AND ALONG THE CONTINENTAL DIVIDE ARE EXPECTED.

* LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 
  83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...BUTTE... 
  GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD 
  PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY 
  LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ003-005-052200-
/O.UPG.KMSO.WC.A.0001.131206T0000Z-131207T1800Z/
/O.NEW.KMSO.WC.W.0001.131206T0000Z-131207T1800Z/
FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS-
435 AM MST THU DEC 5 2013

...WIND CHILL WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM
MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM
MST SATURDAY. THE WIND CHILL WATCH IS NO LONGER IN EFFECT. 

* IMPACTS/TIMING: GUSTY WINDS OF 10 TO 20 MPH WILL DEVELOP TONIGHT
  AND PERSIST THROUGH SATURDAY MORNING. EXTREMELY COLD WIND CHILL
  WILL LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS
  LITTLE AS 30 MINUTES

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO. COLDER AT TIMES
  NEAR THE MOUTH OF HELLGATE AND BADROCK CANYONS.

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON...BITTERROOT VALLEY...MISSOULA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ001-004-006-052200-
/O.UPG.KMSO.WC.A.0001.131206T0000Z-131207T1800Z/
/O.NEW.KMSO.WC.W.0001.131206T0000Z-131207T1800Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
BITTERROOT/SAPPHIRE MOUNTAINS-
435 AM MST THU DEC 5 2013

...WIND CHILL WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM
MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM
MST SATURDAY. THE WIND CHILL WATCH IS NO LONGER IN EFFECT. 

* IMPACTS/TIMING: WINDS 10 TO 20 MPH DEVELOPING TONIGHT AND
  PERSISTING THROUGH SATURDAY MORNING. EXTREMELY COLD WIND CHILL
  WILL LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS
  LITTLE AS 30 MINUTES

* WIND CHILL VALUES: 25 TO 40 DEGREES BELOW ZERO...LOCALLY COLDER
  POSSIBLE IN MORE WIND PRONE LOCATIONS.

* LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... 
  HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD...
  HIGHWAY 93 EUREKA TO WHITEFISH...EVARO HILL...HIGHWAY 200 
  THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...
  I-90 LOOKOUT PASS TO HAUGAN...HIGHWAY 93 SULA TO LOST TRAIL 
  PASS...LOLO PASS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$
7 follow-up statements
000 
WWUS45 KMSO 051907
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1207 PM MST THU DEC 5 2013

...DANGEROUSLY COLD WIND CHILLS FRIDAY AND FRIDAY NIGHT...

MTZ003-061800-
/O.NEW.KMSO.LE.Y.0001.131205T1907Z-131206T1800Z/
/O.CON.KMSO.WC.W.0001.131206T0000Z-131207T1800Z/
FLATHEAD/MISSION VALLEYS-
1207 PM MST THU DEC 5 2013

...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 11 AM MST FRIDAY...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A LAKE EFFECT
SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM MST FRIDAY. A WIND
CHILL WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM
MST SATURDAY. 

* LAKE EFFECT SNOW: WILL CONTINUE TO IMPACT HIGHWAY 35 FROM MILE
  MARKER 18 TO 22 NEAR WOODS BAY INTO THIS AFTERNOON...THEN YELLOW
  BAY TO POLSON OVERNIGHT. VISIBILITY WILL BE REDUCED TO 1/2 MILE
  AT TIMES WITH ISOLATED ACCUMULATIONS UP TO 6 TO 10 INCHES THROUGH
  FRIDAY MORNING.

* IMPACTS/TIMING: GUSTY WINDS OF 10 TO 20 MPH WILL DEVELOP 
  TONIGHT AND PERSIST THROUGH SATURDAY MORNING. EXTREMELY COLD 
  WIND CHILL WILL LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED 
  SKIN IN AS LITTLE AS 30 MINUTES 

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO. COLDER AT 
  TIMES NEAR THE MOUTH OF HELLGATE AND BADROCK CANYONS. 

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

A LAKE EFFECT SNOW ADVISORY MEANS LAKE-EFFECT SNOW IS FORECAST
THAT WILL MAKE TRAVEL DIFFICULT IN SOME AREAS. LAKE-EFFECT SNOW
SHOWERS TYPICALLY ALIGN THEMSELVES IN BANDS AND WILL LIKELY BE
INTENSE ENOUGH TO DROP SEVERAL INCHES IN LOCALIZED AREAS. USE
CAUTION WHEN TRAVELING.

&&

$$

MTZ002-007-043-061800-
/O.CON.KMSO.WC.W.0001.131206T0000Z-131207T1800Z/
WEST GLACIER REGION-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
1207 PM MST THU DEC 5 2013

...WIND CHILL WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 AM MST SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 AM MST SATURDAY. 

* IMPACTS/TIMING: A STRONG ARCTIC FRONT WILL BRING WINDS OF 10 
  TO 20 MPH STARTING TONIGHT AND LASTING THROUGH SATURDAY 
  MORNING. EXTREMELY COLD WIND CHILL WILL LEAD TO A DANGER OF 
  FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 10 MINUTES 

* WIND CHILL VALUES: BETWEEN 25 AND 40 DEGREES BELOW ZERO... 
  LOCALLY APPROACHING 50 BELOW ZERO AT TIMES IN GLACIER NATIONAL 
  PARK AND ALONG THE CONTINENTAL DIVIDE ARE EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 
  83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...BUTTE... 
  GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD 
  PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY 
  LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ005-061800-
/O.CON.KMSO.WC.W.0001.131206T0000Z-131207T1800Z/
MISSOULA/BITTERROOT VALLEYS-
1207 PM MST THU DEC 5 2013

...WIND CHILL WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 AM MST SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 AM MST SATURDAY. 

* IMPACTS/TIMING: GUSTY WINDS OF 10 TO 20 MPH WILL DEVELOP 
  TONIGHT AND PERSIST THROUGH SATURDAY MORNING. EXTREMELY COLD 
  WIND CHILL WILL LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED 
  SKIN IN AS LITTLE AS 30 MINUTES 

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO. COLDER AT 
  TIMES NEAR THE MOUTH OF HELLGATE AND BADROCK CANYONS. 

* LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ001-004-006-061800-
/O.CON.KMSO.WC.W.0001.131206T0000Z-131207T1800Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
BITTERROOT/SAPPHIRE MOUNTAINS-
1207 PM MST THU DEC 5 2013

...WIND CHILL WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 AM MST SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 AM MST SATURDAY. 

* IMPACTS/TIMING: WINDS 10 TO 20 MPH DEVELOPING TONIGHT AND 
  PERSISTING THROUGH SATURDAY MORNING. EXTREMELY COLD WIND CHILL 
  WILL LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS 
  LITTLE AS 30 MINUTES 

* WIND CHILL VALUES: 25 TO 40 DEGREES BELOW ZERO...LOCALLY 
  COLDER POSSIBLE IN MORE WIND PRONE LOCATIONS. 

* LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... 
  HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD...
  HIGHWAY 93 EUREKA TO WHITEFISH...EVARO HILL...HIGHWAY 200 
  THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...
  I-90 LOOKOUT PASS TO HAUGAN...HIGHWAY 93 SULA TO LOST TRAIL 
  PASS...LOLO PASS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$
000 
WWUS45 KMSO 060302
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
802 PM MST THU DEC 5 2013

...DANGEROUSLY COLD WIND CHILLS FRIDAY AND FRIDAY NIGHT...

MTZ003-061800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
/O.CON.KMSO.LE.Y.0001.000000T0000Z-131206T1800Z/
FLATHEAD/MISSION VALLEYS-
802 PM MST THU DEC 5 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...
...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
FRIDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY.
A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
FRIDAY. 

* LAKE EFFECT SNOW: WILL IMPACT YELLOW BAY TO POLSON OVERNIGHT.
  VISIBILITY WILL BE REDUCED TO 1 MILE AT TIMES WITH ISOLATED
  ACCUMULATIONS UP TO 6 INCHES THROUGH FRIDAY MORNING.

* IMPACTS/TIMING: GUSTY WINDS OF 10 TO 20 MPH WILL DEVELOP 
  TONIGHT AND PERSIST THROUGH SATURDAY MORNING. EXTREMELY COLD 
  WIND CHILL WILL LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED 
  SKIN IN AS LITTLE AS 30 MINUTES 

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO. COLDER AT 
  TIMES NEAR THE MOUTH OF HELLGATE AND BADROCK CANYONS. 

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

A LAKE EFFECT SNOW ADVISORY MEANS LAKE-EFFECT SNOW IS FORECAST
THAT WILL MAKE TRAVEL DIFFICULT IN SOME AREAS. LAKE-EFFECT SNOW
SHOWERS TYPICALLY ALIGN THEMSELVES IN BANDS AND WILL LIKELY BE
INTENSE ENOUGH TO DROP SEVERAL INCHES IN LOCALIZED AREAS. USE
CAUTION WHEN TRAVELING.

&&

$$

MTZ002-007-043-061800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
WEST GLACIER REGION-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
802 PM MST THU DEC 5 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: A STRONG ARCTIC FRONT WILL BRING WINDS OF 10 
  TO 20 MPH STARTING TONIGHT AND LASTING THROUGH SATURDAY 
  MORNING. EXTREMELY COLD WIND CHILL WILL LEAD TO A DANGER OF 
  FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 10 MINUTES 

* WIND CHILL VALUES: BETWEEN 25 AND 40 DEGREES BELOW ZERO... 
  LOCALLY APPROACHING 50 BELOW ZERO AT TIMES IN GLACIER NATIONAL 
  PARK AND ALONG THE CONTINENTAL DIVIDE ARE EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 
  83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...BUTTE... 
  GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD 
  PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY 
  LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ005-061800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
MISSOULA/BITTERROOT VALLEYS-
802 PM MST THU DEC 5 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: GUSTY WINDS OF 10 TO 20 MPH WILL DEVELOP 
  TONIGHT AND PERSIST THROUGH SATURDAY MORNING. EXTREMELY COLD 
  WIND CHILL WILL LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED 
  SKIN IN AS LITTLE AS 30 MINUTES 

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO. COLDER AT 
  TIMES NEAR THE MOUTH OF HELLGATE AND BADROCK CANYONS. 

* LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ001-004-006-061800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
BITTERROOT/SAPPHIRE MOUNTAINS-
802 PM MST THU DEC 5 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: WINDS 10 TO 20 MPH DEVELOPING TONIGHT AND 
  PERSISTING THROUGH SATURDAY MORNING. EXTREMELY COLD WIND CHILL 
  WILL LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS 
  LITTLE AS 30 MINUTES 

* WIND CHILL VALUES: 25 TO 40 DEGREES BELOW ZERO...LOCALLY 
  COLDER POSSIBLE IN MORE WIND PRONE LOCATIONS. 

* LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... 
  HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD...
  HIGHWAY 93 EUREKA TO WHITEFISH...EVARO HILL...HIGHWAY 200 
  THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...
  I-90 LOOKOUT PASS TO HAUGAN...HIGHWAY 93 SULA TO LOST TRAIL 
  PASS...LOLO PASS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$
000 
WWUS45 KMSO 061522
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
822 AM MST FRI DEC 6 2013

...DANGEROUSLY COLD WIND CHILLS FRIDAY AND FRIDAY NIGHT...

MTZ003-071800-
/O.CAN.KMSO.LE.Y.0001.000000T0000Z-131206T1800Z/
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
FLATHEAD/MISSION VALLEYS-
822 AM MST FRI DEC 6 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...
...LAKE EFFECT SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE LAKE
EFFECT SNOW ADVISORY. A WIND CHILL WARNING REMAINS IN EFFECT
UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: GUSTY WINDS OF 10 TO 20 MPH WILL PERSIST
  THROUGH SATURDAY MORNING. EXTREMELY COLD WIND CHILL WILL LEAD TO
  A DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 30
  MINUTES

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO. COLDER AT TIMES
  NEAR THE MOUTH OF BADROCK CANYON.

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION
  VALLEY...POLSON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ002-007-043-071800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
WEST GLACIER REGION-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
822 AM MST FRI DEC 6 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: A STRONG ARCTIC FRONT WILL BRING WINDS OF 10 TO
  20 MPH THROUGH SATURDAY MORNING. EXTREMELY COLD WIND CHILL WILL
  LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE
  AS 10 MINUTES

* WIND CHILL VALUES: BETWEEN 25 AND 40 DEGREES BELOW ZERO...
  LOCALLY APPROACHING 50 BELOW ZERO AT TIMES IN GLACIER NATIONAL
  PARK AND ALONG THE CONTINENTAL DIVIDE.

* LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 
  83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...BUTTE... 
  GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD 
  PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY 
  LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ005-071800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
MISSOULA/BITTERROOT VALLEYS-
822 AM MST FRI DEC 6 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: GUSTY WINDS OF 10 TO 20 MPH WILL PERSIST
  THROUGH SATURDAY MORNING. EXTREMELY COLD WIND CHILL WILL LEAD TO
  A DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 30
  MINUTES

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO. COLDER AT TIMES
  NEAR THE MOUTH OF HELLGATE CANYON.

* LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ001-004-006-071800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
BITTERROOT/SAPPHIRE MOUNTAINS-
822 AM MST FRI DEC 6 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: WINDS 10 TO 20 MPH WILL PERSIST THROUGH SATURDAY
  MORNING. EXTREMELY COLD WIND CHILL WILL LEAD TO A DANGER OF
  FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 30 MINUTES

* WIND CHILL VALUES: 25 TO 40 DEGREES BELOW ZERO...LOCALLY 
  COLDER POSSIBLE IN MORE WIND PRONE LOCATIONS. 

* LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... 
  HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD...
  HIGHWAY 93 EUREKA TO WHITEFISH...EVARO HILL...HIGHWAY 200 
  THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...
  I-90 LOOKOUT PASS TO HAUGAN...HIGHWAY 93 SULA TO LOST TRAIL 
  PASS...LOLO PASS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$
000 
WWUS45 KMSO 062122
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
222 PM MST FRI DEC 6 2013

...DANGEROUSLY COLD WIND CHILLS THROUGH SATURDAY MORNING...

MTZ002-007-043-071800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
WEST GLACIER REGION-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
222 PM MST FRI DEC 6 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: A STRONG ARCTIC FRONT WILL BRING WINDS OF 10 TO
  20 MPH THROUGH SATURDAY MORNING. EXTREMELY COLD WIND CHILL WILL
  LEAD TO A DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE
  AS 10 MINUTES THE COLDEST WIND CHILLS ARE EXPECTED THIS EVENING
  THROUGH SATURDAY MORNING.

* WIND CHILL VALUES: BETWEEN 25 AND 40 DEGREES BELOW ZERO... 
  LOCALLY APPROACHING 50 BELOW ZERO AT TIMES IN GLACIER NATIONAL 
  PARK AND ALONG THE CONTINENTAL DIVIDE. 

* LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 
  83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...BUTTE... 
  GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD 
  PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY 
  LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ003-005-071800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS-
222 PM MST FRI DEC 6 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: GUSTY WINDS OF 10 TO 20 MPH WILL PERSIST THROUGH
  SATURDAY MORNING. EXTREMELY COLD WIND CHILL WILL LEAD TO A
  DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 10
  MINUTES THE COLDEST WIND CHILLS ARE EXPECTED THIS EVENING
  THROUGH SATURDAY MORNING.

* WIND CHILL VALUES: 25 TO 35 DEGREES BELOW ZERO. LOCALLY AS COLD
  AS 40 DEGREES BELOW ZERO NEAR THE MOUTH OF HELLGATE AND BADROCK
  CANYON.

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION
  VALLEY...POLSON...BITTERROOT VALLEY...MISSOULA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ001-004-006-071800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
BITTERROOT/SAPPHIRE MOUNTAINS-
222 PM MST FRI DEC 6 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. 

* IMPACTS/TIMING: WINDS 10 TO 20 MPH WILL PERSIST THROUGH 
  SATURDAY MORNING. EXTREMELY COLD WIND CHILLS WILL LEAD TO A 
  DANGER OF FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 30 
  MINUTES THE COLDEST WIND CHILLS ARE EXPECTED THIS EVENING
  THROUGH SATURDAY MORNING.

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO...LOCALLY COLDER
  POSSIBLE IN MORE WIND PRONE LOCATIONS.

* LOCATIONS IMPACTED INCLUDE...LIBBY...EUREKA ...HIGHWAY 56 BULL
  LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH...EVARO
  HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT
  CREEK TO HERON... I-90 LOOKOUT PASS TO HAUGAN...HIGHWAY 93 SULA
  TO LOST TRAIL PASS...LOLO PASS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$
000 
WWUS45 KMSO 071149
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
449 AM MST SAT DEC 7 2013

...DANGEROUSLY COLD WIND CHILLS THROUGH THIS MORNING...

MTZ002-007-043-071800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
WEST GLACIER REGION-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
449 AM MST SAT DEC 7 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* IMPACTS/TIMING: WINDS OF 10 TO 20 MPH PRESENT THROUGH THIS
  MORNING. EXTREMELY COLD WIND CHILL WILL LEAD TO A DANGER OF
  FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 10 MINUTES.

* WIND CHILL VALUES: 25 TO 40 DEGREES BELOW ZERO...AS LOW AS 50
  BELOW ZERO IN GLACIER NATIONAL PARK AND ALONG CONTINENTAL
  DIVIDE.

* LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 
  83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...BUTTE... 
  GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD 
  PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY 
  LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ003-005-071800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS-
449 AM MST SAT DEC 7 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* IMPACTS/TIMING: WINDS OF 10 TO 20 MPH WILL BE PRESENT THROUGH
  THIS MORNING. EXTREMELY COLD WIND CHILL WILL LEAD TO A DANGER OF
  FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 10 MINUTES.

* WIND CHILL VALUES: 25 TO 35 DEGREES BELOW ZERO. LOCALLY AS 
  COLD AS 40 DEGREES BELOW ZERO NEAR THE MOUTH OF HELLGATE AND 
  BADROCK CANYONS. 

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON...BITTERROOT VALLEY...MISSOULA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ001-004-006-071800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
BITTERROOT/SAPPHIRE MOUNTAINS-
449 AM MST SAT DEC 7 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* IMPACTS/TIMING: WINDS 10 TO 20 MPH WILL BE PRESENT THROUGH THIS
  MORNING. EXTREMELY COLD WIND CHILLS WILL LEAD TO A DANGER OF
  FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 30 MINUTES.

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO.

* LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... 
  HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD...
  HIGHWAY 93 EUREKA TO WHITEFISH...EVARO HILL...HIGHWAY 200 
  THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...
  I-90 LOOKOUT PASS TO HAUGAN...HIGHWAY 93 SULA TO LOST TRAIL 
  PASS...LOLO PASS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$
000 
WWUS45 KMSO 071749
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1049 AM MST SAT DEC 7 2013

...DANGEROUSLY COLD WIND CHILLS THROUGH THIS MORNING...

MTZ001-006-071900-
/O.CAN.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
KOOTENAI/CABINET REGION-BITTERROOT/SAPPHIRE MOUNTAINS-
1049 AM MST SAT DEC 7 2013

...WIND CHILL WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND
CHILL WARNING. 

WHILE EXTREMELY COLD TEMPERATURES CONTINUE, WINDS HAVE DIED OFF
THIS MORNING, ENDING THE WIND CHILL THREAT.

$$

MTZ002-007-043-071900-
/O.EXP.KMSO.WC.W.0001.000000T0000Z-131207T1800Z/
WEST GLACIER REGION-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
1049 AM MST SAT DEC 7 2013

...WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING...

THE WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING. 

WHILE EXTREMELY COLD TEMPERATURES CONTINUE, WINDS HAVE DIED OFF
THIS MORNING, ENDING THE WIND CHILL THREAT.


$$

MTZ003-005-080000-
/O.EXT.KMSO.WC.W.0001.000000T0000Z-131208T0000Z/
FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS-
1049 AM MST SAT DEC 7 2013

...WIND CHILL WARNING NOW IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

THE WIND CHILL WARNING IS NOW IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* IMPACTS/TIMING: WINDS OF 10 TO 15 MPH WILL CONTINUE THROUGH THE
  AFTERNOON, ESPECIALLY THROUGH HELLGATE CANYON INTO DOWNTOWN
  MISSOULA, BADROCK CANYON NEAR KALISPELL AND THE MISSION VALLEY.
  EXTREMELY COLD WIND CHILL WILL LEAD TO A DANGER OF FROSTBITE ON
  UNPROTECTED SKIN IN AS LITTLE AS 30 MINUTES.

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO, MAINLY THROUGH
  HELLGATE CANYON AND DOWNTOWN MISSOULA, BADROCK CANYON NEAR
  KALISPELL AND THROUGH THE MISSION VALLEY.

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON...BITTERROOT VALLEY...MISSOULA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

MTZ004-080000-
/O.EXT.KMSO.WC.W.0001.000000T0000Z-131208T0000Z/
LOWER CLARK FORK REGION-
1049 AM MST SAT DEC 7 2013

...WIND CHILL WARNING NOW IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

THE WIND CHILL WARNING IS NOW IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* IMPACTS/TIMING: WINDS 10 TO 15 MPH WILL BE PRESENT THROUGH THIS
  AFTERNOON. EXTREMELY COLD WIND CHILLS WILL LEAD TO A DANGER OF
  FROSTBITE ON UNPROTECTED SKIN IN AS LITTLE AS 30 MINUTES.

* WIND CHILL VALUES: 20 TO 30 DEGREES BELOW ZERO.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$
000 
WWUS45 KMSO 072339
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
439 PM MST SAT DEC 7 2013

MTZ003-005-080045-
/O.EXP.KMSO.WC.W.0001.000000T0000Z-131208T0000Z/
FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS-
439 PM MST SAT DEC 7 2013

...WIND CHILL WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

THE WIND CHILL WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON. 

VERY COLD TEMPERATURES WILL PERSIST FOR THE NEXT FEW DAYS...BUT
WINDS HAVE DECREASED SO WIND CHILLS ARE NO LONGER AN IMPACT AND
THE WARNING WILL EXPIRE. THOSE OUTDOORS SHOULD STILL TAKE
PRECAUTIONS TO PROTECT YOURSELF FROM THE VERY COLD CONDITIONS.

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON...BITTERROOT VALLEY...MISSOULA

$$

MTZ004-080045-
/O.EXP.KMSO.WC.W.0001.000000T0000Z-131208T0000Z/
LOWER CLARK FORK REGION-
439 PM MST SAT DEC 7 2013

...WIND CHILL WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

THE WIND CHILL WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON. 

VERY COLD TEMPERATURES WILL PERSIST FOR THE NEXT FEW DAYS...BUT
WINDS HAVE DECREASED SO WIND CHILLS ARE NO LONGER AN IMPACT AND
THE WARNING WILL EXPIRE. THOSE OUTDOORS SHOULD STILL TAKE
PRECAUTIONS TO PROTECT YOURSELF FROM THE VERY COLD CONDITIONS.

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

$$

What forecasters said that day

The local office's own words before this wind chill warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Missoula, MT wrote its last area forecast discussion before this wind chill warning went out at Dec 5, 4:13 AM MST, 22 minutes earlier.

Area forecast discussion, Dec 5, 4:13 AM MST, 22 minutes before
Area Forecast Discussion
National Weather Service Missoula MT
413 AM MST Thu Dec 5 2013

...Extreme wind chill readings expected across western Montana
tonight through Saturday morning...

.DISCUSSION...Dangerously cold wind chill readings will begin to
develop later tonight across much of western Montana as a second
arctic front overtakes the region. Believe it or not, the air
behind this front is even colder than that which arrived earlier
this week! In fact, some analytics suggest that conditions over
the next few days could very well rival some of the coldest the
area has seen in several decades (reminiscent of the prolonged,
epic cold of the 1970s). These frigid temperatures will combine
with gusty winds to produce extremely dangerous wind chill
readings, the effects of which could result in frostbite should
skin remain unprotected for as little as 10 minutes! Extremely
dangerous wind chill are expected to persist into at least
Saturday morning and perhaps even longer in wind prone locations
(such as Badrock and Hellgate Canyons). Numerous records (both low
high temperature and low temperature) will be broken during the
next few days as a result of the epic cold snap.

While the extreme cold is assaulting western Montana, central Idaho
will see returning chances for snow as a weather system moving
down the Pacific coast spreads moisture into the region. However
snow ratios will be very high due to extremely cold temperatures
limiting the snow growth region. Combine this with the meager
moisture associated with this weather system and the result will
be light, powdery snowfall. The liquid content should be extremely
low with the snow so few impacts to travel are anticipated at this
time.

Sunday night could be the coldest yet for many valleys, depending
upon the usual suspects of cloud cover and wind. But all models
show dry air over the region for much of the night as high
pressure begins to build, all of which promote maximum overnight
cooling. Thankfully wind chill impacts will be near non existent
due to little, if any surface pressure gradient.

Next week the overall pattern begins to transition to northwest
flow aloft, one which locally we have determined to be often
problematic with weak systems producing persistent light snowfall
across much of the Northern Rockies when models indicate little
should happen. Thus have gone with normal chances for
precipitation with a slow moderation in temperatures. All long
range models continue to show a significant push of moisture
across the region late next week, one which could result in
significant snowfall. Stay tuned...winter appears to have only
just begun!

&&

.AVIATION...The very cold temperatures will continue today and
cloud cover will be on the increase obscuring area terrain at
times. For tonight, another arctic front moving through will bring
breezy East to Northeast winds for KGPI and KMSO.

&&

.CLIMATE...At 9:17pm MST Wednesday night, December 4th Missoula
International Airport recorded a temperature below zero for the
first time since February 26th, 2013 or 1011 days. This shatters
the previous record of 976 days which occurred from March 25th,
1965 until November 25th, 1967.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WIND CHILL WARNING from 5 PM this afternoon to 11 AM MST
     Saturday Butte/Blackfoot Region...Potomac/Seeley Lake
     Region...West Glacier Region.

     WIND CHILL WARNING from 5 PM this afternoon to 11 AM MST
     Saturday Bitterroot/Sapphire Mountains...Kootenai/Cabinet
     Region...Lower Clark Fork Region.

     WIND CHILL WARNING from 5 PM this afternoon to 11 AM MST
     Saturday Flathead/Mission Valleys...Missoula/Bitterroot
     Valleys.

ID...None.
&&

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The office that day

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

IssuedProductOfficeCountiesLasted
Dec 5, 12:07 PM MSTLake Effect Snow AdvisoryMSOFlathead, Lake, Sanders20 hr

Nearby

Wind Chill Warnings in Montana, 2013Every wind chill warning in 2013

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.