Alert archive / Montana / Wind Chill Advisories in 2009

Wind Chill Advisory 2, NWS Missoula, MT

January 24, 20099 counties in Montana

NWS Missoula, MT issued this wind chill advisory at Jan 24, 2009, 3:25 AM MST for 9 counties in Montana. It took effect at Jan 24, 2009, 9:30 AM MST. It was in force for 29 hr.

The area

The counties it named.

The facts

Issued
Jan 24, 2009, 3:25 AM MST (10:25 UTC)
In effect from
Jan 24, 2009, 9:30 AM MST
Expired
Jan 25, 2009, 2:34 PM MST
In force
29 hr
Issued by
NWS Missoula, MT

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

The radar

The Missoula radar (KMSX), 27 km from the middle of the area, began a volume at 10:26 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.

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 10.4 hours before the alert went out and 222 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 2009-01-24Temperature 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 2009-01-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
587 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
78 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 241025
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
325 AM MST SAT JAN 24 2009

.MOISTURE MOVING IN FROM THE PACIFIC WILL INTERACT WITH A WEATHER
SYSTEM DIVING SOUTH OUT OF CANADA AND INTO THE NORTHERN ROCKIES
LATER TODAY AND TONIGHT. LIGHT SNOW IS EXPECTED TO DEVELOP BY THIS
AFTERNOON WITH ACCUMULATING SNOW OVERNIGHT. THIS CANADIAN SYSTEM
WILL ALSO PULL COLD AIR WEST OF THE CONTINENTAL DIVIDE OVERNIGHT
TONIGHT. THE COMBINATION OF COLD TEMPERATURES AND GUSTY WINDS
THROUGH THE GAPS OF THE DIVIDE WILL CREATE DANGEROUS WIND CHILLS
LATE TONIGHT AND INTO SUNDAY MORNING. 

IDZ006-007-241800-
/O.NEW.KMSO.WW.Y.0030.090124T2200Z-090125T1600Z/
SOUTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-
225 AM PST SAT JAN 24 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 AM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 8 AM PST SUNDAY.

TOTAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED BY EARLY
SUNDAY MORNING. LOCATIONS IMPACTED WITH INCLUDE THE GRANGEVILLE
AREA AND SURROUNDING FOOTHILLS...HIGHWAY 12 LEADING UP TO LOLO
PASS...AS WELL AS HIGHWAY 14 GOING TO ELK CITY. 

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


$$

MTZ002-241800-
/O.NEW.KMSO.WC.Y.0002.090125T0400Z-090125T1800Z/
WEST GLACIER REGION-
325 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 11 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 11 AM MST
SUNDAY. 

COLD TEMPERATURE AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO TONIGHT AND
INTO SUNDAY MORNING. 

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ003-043-241800-
/O.NEW.KMSO.WC.Y.0002.090125T0600Z-090125T1800Z/
FLATHEAD/MISSION VALLEYS-POTOMAC/SEELEY LAKE REGION-
325 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST SUNDAY. 

COLD TEMPERATURE AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. AREAS MOST IMPACTED WILL BE THE NORTHERN
FLATHEAD VALLEY AND POTOMAC AREA. 

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ005-241800-
/O.NEW.KMSO.WC.Y.0002.090125T0900Z-090125T1800Z/
MISSOULA/BITTERROOT VALLEYS-
325 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY IN EFFECT FROM 2 AM TO 11 AM MST SUNDAY FOR 
THE MISSOULA VALLEY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 11 AM MST SUNDAY. 

COLD TEMPERATURE AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. THIS WILL IMPACT THE MISSOULA VALLEY.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
11 follow-up statements
000 
WWUS45 KMSO 241039 CCA
WSWMSO

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MISSOULA MT
339 AM MST SAT JAN 24 2009

.MOISTURE MOVING IN FROM THE PACIFIC WILL INTERACT WITH A WEATHER
SYSTEM DIVING SOUTH OUT OF CANADA AND INTO THE NORTHERN ROCKIES
LATER TODAY AND TONIGHT. LIGHT SNOW IS EXPECTED TO DEVELOP BY THIS
AFTERNOON WITH ACCUMULATING SNOW OVERNIGHT. THIS CANADIAN SYSTEM
WILL ALSO PULL COLD AIR WEST OF THE CONTINENTAL DIVIDE OVERNIGHT
TONIGHT. THE COMBINATION OF COLD TEMPERATURES AND GUSTY WINDS
THROUGH THE GAPS OF THE DIVIDE WILL CREATE DANGEROUS WIND CHILLS
LATE TONIGHT AND INTO SUNDAY MORNING. 

IDZ006-007-241830-
/O.COR.KMSO.WW.Y.0030.090124T2200Z-090125T1600Z/
SOUTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-
239 AM PST SAT JAN 24 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 AM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 8 AM PST SUNDAY.

TOTAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED BY EARLY
SUNDAY MORNING. LOCATIONS IMPACTED WILL INCLUDE THE GRANGEVILLE
AREA AND SURROUNDING FOOTHILLS...HIGHWAY 12 LEADING UP TO LOLO
PASS...AS WELL AS HIGHWAY 14 GOING TO ELK CITY.

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


$$

MTZ002-241830-
/O.NEW.KMSO.WC.Y.0002.090125T0400Z-090125T1800Z/
WEST GLACIER REGION-
339 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 11 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 11 AM MST
SUNDAY. 

COLD TEMPERATURE AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO TONIGHT AND
INTO SUNDAY MORNING. 

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ003-043-241830-
/O.NEW.KMSO.WC.Y.0002.090125T0600Z-090125T1800Z/
FLATHEAD/MISSION VALLEYS-POTOMAC/SEELEY LAKE REGION-
339 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST SUNDAY. 

COLD TEMPERATURE AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. AREAS MOST IMPACTED WILL BE THE NORTHERN
FLATHEAD VALLEY AND POTOMAC AREA. 

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ005-241830-
/O.NEW.KMSO.WC.Y.0002.090125T0900Z-090125T1800Z/
MISSOULA/BITTERROOT VALLEYS-
339 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY IN EFFECT FROM 2 AM TO 11 AM MST SUNDAY FOR 
THE MISSOULA VALLEY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 11 AM MST SUNDAY. 

COLD TEMPERATURE AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. THIS WILL IMPACT THE MISSOULA VALLEY.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
000 
WWUS45 KMSO 241630
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
930 AM MST SAT JAN 24 2009

.MOISTURE MOVING IN FROM THE PACIFIC WILL INTERACT WITH A WEATHER
SYSTEM DIVING SOUTH OUT OF CANADA AND INTO THE NORTHERN ROCKIES
LATER TODAY AND TONIGHT. LIGHT SNOW IS EXPECTED TO DEVELOP BY
THIS AFTERNOON WITH ACCUMULATING SNOW OVERNIGHT. THIS CANADIAN
SYSTEM WILL ALSO PULL COLD AIR WEST OF THE CONTINENTAL DIVIDE.
THE COMBINATION OF COLD TEMPERATURES AND GUSTY WINDS IN THE
VICINITY OF TERRAIN GAPS ALONG THE DIVIDE WILL CREATE DANGEROUS WIND
CHILLS THROUGH SUNDAY MORNING.

MTZ007-250000-
/O.EXA.KMSO.WC.Y.0002.090125T0600Z-090125T1800Z/
BUTTE/BLACKFOOT REGION-
930 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST SUNDAY. 

COLD TEMPERATURES AND EAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. AREAS MOST IMPACTED WILL BE THE OVANDO
AND HELMVILLE AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ002-250000-
/O.EXT.KMSO.WC.Y.0002.090124T1630Z-090125T1800Z/
WEST GLACIER REGION-
930 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 11 AM MST SUNDAY...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL 11 AM MST SUNDAY. 

COLD TEMPERATURE AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO THROUGH SUNDAY
MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

IDZ006-007-250000-
/O.CON.KMSO.WW.Y.0030.090124T2200Z-090125T1600Z/
SOUTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-
830 AM PST SAT JAN 24 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 8 AM PST SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 8 AM PST SUNDAY. 

TOTAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED BY EARLY
SUNDAY MORNING. LOCATIONS IMPACTED WILL INCLUDE THE GRANGEVILLE
AREA AND SURROUNDING FOOTHILLS...HIGHWAY 12 LEADING UP TO LOLO
PASS...AS WELL AS HIGHWAY 14 GOING TO ELK CITY.

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

$$

MTZ003-043-250000-
/O.CON.KMSO.WC.Y.0002.090125T0600Z-090125T1800Z/
FLATHEAD/MISSION VALLEYS-POTOMAC/SEELEY LAKE REGION-
930 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM MST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM MST SUNDAY. 

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. AREAS MOST IMPACTED WILL BE THE NORTHERN
FLATHEAD VALLEY AND POTOMAC AREA.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ005-250000-
/O.CON.KMSO.WC.Y.0002.090125T0900Z-090125T1800Z/
MISSOULA/BITTERROOT VALLEYS-
930 AM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 2 AM TO 11 AM MST
SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 2 AM TO 11 AM MST
SUNDAY. 

COLD TEMPERATURE AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. THIS WILL IMPACT THE MISSOULA VALLEY.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
000 
WWUS45 KMSO 242141
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
241 PM MST SAT JAN 24 2009

.MOISTURE MOVING IN FROM THE PACIFIC WILL INTERACT WITH A WEATHER
SYSTEM DIVING SOUTH OUT OF CANADA AND INTO THE NORTHERN ROCKIES
DURING THIS EVENING. LIGHT SNOW HAS ALREADY BEGUN TO ACCUMULATE AND
IS ANTICIPATED TO CONTINUE THROUGH EARLY SUNDAY AFTERNOON. THIS
CANADIAN SYSTEM WILL ALSO PULL COLD AIR FROM EAST OF THE
CONTINENTAL DIVIDE. THE COMBINATION OF COLD TEMPERATURES AND GUSTY
WINDS IN THE VICINITY OF TERRAIN GAPS ALONG THE DIVIDE WILL CREATE
DANGEROUS WIND CHILLS THROUGH SUNDAY MORNING.

IDZ006-007-250600-
/O.CON.KMSO.WW.Y.0030.090124T2200Z-090125T1600Z/
SOUTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-
141 PM PST SAT JAN 24 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
SUNDAY. 

TOTAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED BY EARLY
SUNDAY MORNING. LOCATIONS IMPACTED WILL INCLUDE THE GRANGEVILLE
AREA AND SURROUNDING FOOTHILLS...HIGHWAY 12 LEADING UP TO LOLO
PASS...AS WELL AS HIGHWAY 14 GOING TO ELK CITY.

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

$$

MTZ002-250600-
/O.CON.KMSO.WC.Y.0002.000000T0000Z-090125T1800Z/
WEST GLACIER REGION-
241 PM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. 

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO THROUGH SUNDAY
MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ003-043-250600-
/O.CON.KMSO.WC.Y.0002.090125T0600Z-090125T1800Z/
FLATHEAD/MISSION VALLEYS-POTOMAC/SEELEY LAKE REGION-
241 PM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM MST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM MST SUNDAY. 

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. AREAS MOST IMPACTED WILL BE THE NORTHERN
FLATHEAD VALLEY AND POTOMAC AREA.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ005-250600-
/O.CON.KMSO.WC.Y.0002.090125T0900Z-090125T1800Z/
MISSOULA/BITTERROOT VALLEYS-
241 PM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 2 AM TO 11 AM MST
SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 2 AM TO 11 AM MST
SUNDAY. 

COLD TEMPERATURE AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. THIS WILL IMPACT MAINLY THE MISSOULA
VALLEY.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ007-250600-
/O.CON.KMSO.WC.Y.0002.090125T0600Z-090125T1800Z/
BUTTE/BLACKFOOT REGION-
241 PM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM MST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM MST SUNDAY. 

COLD TEMPERATURES AND EAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. AREAS MOST IMPACTED WILL BE THE OVANDO
AND HELMVILLE AREAS.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
000 
WWUS45 KMSO 250100
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
600 PM MST SAT JAN 24 2009

.MOISTURE MOVING IN FROM THE PACIFIC WILL INTERACT WITH A WEATHER
SYSTEM DIVING SOUTH OUT OF CANADA AND INTO THE NORTHERN ROCKIES
TONIGHT THROUGH SUNDAY MORNING. LIGHT SNOW HAS ALREADY BEGUN TO
ACCUMULATE AND IS ANTICIPATED TO CONTINUE THROUGH EARLY SUNDAY
AFTERNOON. THE CANADIAN SYSTEM WILL ALSO PULL COLD AIR FROM EAST
OF THE CONTINENTAL DIVIDE. THE COMBINATION OF COLD TEMPERATURES
AND GUSTY WINDS IN THE VICINITY OF WEST TO EAST ORIENTED MOUNTAIN GAPS
ALONG THE DIVIDE WILL CREATE DANGEROUS WIND CHILLS THROUGH SUNDAY
MORNING.

MTZ005-250900-
/O.CAN.KMSO.WC.Y.0002.090125T0900Z-090125T1800Z/
/O.EXB.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
MISSOULA/BITTERROOT VALLEYS-
600 PM MST SAT JAN 24 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST SUNDAY...
...WIND CHILL ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST
SUNDAY. THE WIND CHILL ADVISORY HAS BEEN CANCELLED.

3 INCHES OF SNOW IS EXPECTED ACROSS THE MISSOULA AND BITTERROOT
VALLEY BY SUNDAY MORNING...WITH LOCALLY HIGHER AMOUNTS UP TO 5
INCHES POSSIBLE ON THE BENCHES. 
ANOTHER PUSH OF ARCTIC AIR WILL INCREASE WINDS THROUGH HELL GATE
CANYON AND EAST MISSOULA AFTER MIDNIGHT...BUT WIND CHILLS ARE
EXPECTED TO ONLY DROP TO NEAR ZERO.

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

$$

MTZ007-250900-
/O.CAN.KMSO.WC.Y.0002.090125T0600Z-090125T1800Z/
/O.EXB.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
BUTTE/BLACKFOOT REGION-
600 PM MST SAT JAN 24 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST SUNDAY...
...WIND CHILL ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND WIND CHILLS...WHICH IS IN EFFECT
UNTIL 11 AM MST SUNDAY. THE WIND CHILL ADVISORY HAS BEEN
CANCELLED.

SNOW ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED BY LATE SUNDAY
MORNING. LOCATIONS IMPACTED WILL BE SOUTH OF GARRISON
JUNCTION...INCLUDING BUTTE.

ALONG AND NORTH OF GARRISON JUNCTION...COLD TEMPERATURES AND EAST
WINDS 15 TO 25 MPH WILL CREATE DANGEROUS WIND CHILLS OF 10 BELOW
TO 20 BELOW ZERO LATE TONIGHT INTO SUNDAY MORNING. AREAS MOST
IMPACTED WILL BE THE OVANDO AND HELMVILLE AREAS.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING
SNOW...AND DANGEROUS WIND CHILLS. BE PREPARED FOR SLIPPERY ROADS
AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

MTZ006-250900-
/O.EXB.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
600 PM MST SAT JAN 24 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST
SUNDAY.

TOTAL SNOW ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED BY EARLY
SUNDAY MORNING. LOCATIONS IMPACTED WILL INCLUDE HIGHWAY 12 UP TO
LOLO PASS AND HIGHWAY 93 FROM SULA TO LOST TRAIL PASS. 

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

$$

IDZ006-007-250900-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-090125T1600Z/
SOUTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-
500 PM PST SAT JAN 24 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
SUNDAY. 

TOTAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED BY EARLY
SUNDAY MORNING. LOCATIONS IMPACTED WILL INCLUDE THE GRANGEVILLE
AREA AND SURROUNDING FOOTHILLS...HIGHWAY 12 LEADING UP TO LOLO
PASS...AS WELL AS HIGHWAY 14 GOING TO ELK CITY.

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

$$

MTZ002-250900-
/O.CON.KMSO.WC.Y.0002.000000T0000Z-090125T1800Z/
WEST GLACIER REGION-
600 PM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. 

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO THROUGH SUNDAY
MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ003-043-250900-
/O.CON.KMSO.WC.Y.0002.090125T0600Z-090125T1800Z/
FLATHEAD/MISSION VALLEYS-POTOMAC/SEELEY LAKE REGION-
600 PM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM MST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM MST SUNDAY. 

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. AREAS MOST IMPACTED WILL BE THE NORTHERN
FLATHEAD VALLEY AND POTOMAC AREA.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
000 
WWUS45 KMSO 250441
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
941 PM MST SAT JAN 24 2009

.MOISTURE MOVING IN FROM THE PACIFIC WILL INTERACT WITH A WEATHER
SYSTEM DIVING SOUTH OUT OF CANADA AND INTO THE NORTHERN ROCKIES
TONIGHT THROUGH SUNDAY MORNING. LIGHT SNOW WILL CONTINUE THROUGH
EARLY SUNDAY AFTERNOON. THE CANADIAN SYSTEM WILL ALSO PULL COLD
AIR FROM EAST OF THE CONTINENTAL DIVIDE. THE COMBINATION OF COLD
TEMPERATURES AND GUSTY WINDS IN THE VICINITY OF WEST TO EAST
ORIENTED MOUNTAIN GAPS ALONG THE DIVIDE WILL CREATE DANGEROUS WIND
CHILLS THROUGH SUNDAY MORNING.

IDZ006-007-251245-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-090125T1600Z/
SOUTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-
841 PM PST SAT JAN 24 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
SUNDAY. 

TOTAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES...LOCALLY UP TO 6 INCHES ARE
EXPECTED BY EARLY SUNDAY MORNING. LOCATIONS IMPACTED WILL INCLUDE
THE GRANGEVILLE AREA AND SURROUNDING FOOTHILLS...HIGHWAY 12
LEADING UP TO LOLO PASS...AS WELL AS HIGHWAY 14 GOING TO ELK CITY.

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

$$

MTZ005-251245-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
MISSOULA/BITTERROOT VALLEYS-
941 PM MST SAT JAN 24 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SUNDAY. 

TOTAL SNOW ACCUMULATIONS 3 TO 4 INCHES IS EXPECTED ACROSS THE
MISSOULA AND NORTHERN BITTERROOT VALLEYS BY SUNDAY MORNING...WITH
LOCALLY HIGHER AMOUNTS UP TO 5 INCHES POSSIBLE ON THE BENCHES. 1
TO 3 INCHES IN THE SOUTHERN BITTERROOT VALLEY. ANOTHER PUSH OF
ARCTIC AIR WILL INCREASE WINDS THROUGH HELL GATE CANYON AND EAST
MISSOULA AFTER MIDNIGHT...WHICH WILL CREATE LOCAL AREAS OF BLOWING
SNOW.

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

$$

MTZ007-251245-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
BUTTE/BLACKFOOT REGION-
941 PM MST SAT JAN 24 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SUNDAY. 

SNOW ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED BY LATE SUNDAY
MORNING. LOCATIONS IMPACTED WILL BE SOUTH OF GARRISON JUNCTION...
INCLUDING BUTTE.

ALONG AND NORTH OF GARRISON JUNCTION...COLD TEMPERATURES AND EAST
WINDS 15 TO 25 MPH WILL CREATE DANGEROUS WIND CHILLS OF 10 BELOW
TO 20 BELOW ZERO LATE TONIGHT INTO SUNDAY MORNING. AREAS MOST
IMPACTED WILL BE THE OVANDO AND HELMVILLE AREAS.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING
SNOW...AND DANGEROUS WIND CHILLS. BE PREPARED FOR SLIPPERY ROADS
AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

MTZ006-251245-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
941 PM MST SAT JAN 24 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SUNDAY. 

TOTAL SNOW ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED BY EARLY
SUNDAY MORNING. LOCATIONS IMPACTED WILL INCLUDE HIGHWAY 12 UP TO
LOLO PASS AND HIGHWAY 93 FROM SULA TO LOST TRAIL PASS.

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

$$

MTZ002-251245-
/O.CON.KMSO.WC.Y.0002.000000T0000Z-090125T1800Z/
WEST GLACIER REGION-
941 PM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. 

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO THROUGH SUNDAY
MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ003-043-251245-
/O.CON.KMSO.WC.Y.0002.090125T0600Z-090125T1800Z/
FLATHEAD/MISSION VALLEYS-POTOMAC/SEELEY LAKE REGION-
941 PM MST SAT JAN 24 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. 

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO LATE TONIGHT
AND INTO SUNDAY MORNING. AREAS MOST IMPACTED WILL BE THE NORTHERN
FLATHEAD VALLEY AND POTOMAC AREA.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
000 
WWUS45 KMSO 250959
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
259 AM MST SUN JAN 25 2009


IDZ006-007-251800-
/O.EXT.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-
159 AM PST SUN JAN 25 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS
MORNING...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 10 AM PST THIS
MORNING. 

STEADY SNOW WILL CONTINUE THIS MORNING WITH AN ADDITIONAL 1 TO 2
INCHES OF SNOW POSSIBLE. TOTAL SNOW ACCUMULATIONS OF 2 TO 4
INCHES...LOCALLY UP TO 6 INCHES ARE EXPECTED...BEFORE TAPERING OFF
LATER THIS MORNING. LOCATIONS IMPACTED WILL INCLUDE THE
GRANGEVILLE AREA AND SURROUNDING FOOTHILLS...HIGHWAY 12 LEADING
UP TO LOLO PASS...AS WELL AS HIGHWAY 14 GOING TO ELK CITY.

$$

MTZ005-251800-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
MISSOULA/BITTERROOT VALLEYS-
259 AM MST SUN JAN 25 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING IN THE MISSOULA VALLEY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

STEADY LIGHT SNOW WILL CONTINUE THIS MORNING WITH UP TO AN INCH OF
ADDITIONAL SNOWFALL EXPECTED THIS MORNING. COLD AIR FLOODING
THROUGH THE GAPS OF THE CONTINENTAL DIVIDE WILL SPILL INTO THE
MISSOULA VALLEY THROUGH THE HELLGATE CANYON. COLD AIR AND GUSTY
EAST WINDS 15 TO 30 MPH WILL CREATE WIND CHILL OF 10 BELOW TO 20
BELOW ZERO IN THE UNIVERSITY OF MONTANA CAMPUS AND EAST MISSOULA. 

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...AND LOCAL
BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING. LOW WIND CHILLS WILL RESULT IN FROST BITE AND LEAD TO
HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.

$$

MTZ007-251800-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
BUTTE/BLACKFOOT REGION-
259 AM MST SUN JAN 25 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

STEADY SNOW WILL CONTINUE THIS MORNING WITH AN ADDITIONAL 1 TO 2
INCHES OF SNOW POSSIBLE. 

IN ADDITION TO SNOW...
ALONG AND NORTH OF GARRISON JUNCTION...COLD TEMPERATURES AND EAST
WINDS 15 TO 25 MPH WILL CREATE DANGEROUS WIND CHILLS OF 10 BELOW
TO 20 BELOW ZERO THROUGH THIS MORNING. AREAS MOST IMPACTED WILL BE
THE OVANDO AND HELMVILLE AREAS.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING
SNOW...AND DANGEROUS WIND CHILLS. BE PREPARED FOR SLIPPERY ROADS
AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

MTZ006-251800-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
259 AM MST SUN JAN 25 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

STEADY SNOW WILL CONTINUE THIS MORNING WITH AN ADDITIONAL 1 TO 2
INCHES OF SNOW POSSIBLE. TOTAL SNOW ACCUMULATIONS OF 3 TO 5
INCHES ARE EXPECTED BY LATE THIS MORNING. LOCATIONS IMPACTED WILL
INCLUDE HIGHWAY 12 UP TO LOLO PASS AND HIGHWAY 93 FROM SULA TO
LOST TRAIL PASS.

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

$$

MTZ002-251800-
/O.CON.KMSO.WC.Y.0002.000000T0000Z-090125T1800Z/
WEST GLACIER REGION-
259 AM MST SUN JAN 25 2009

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

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

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO THROUGH THIS
MORNING. 

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ003-043-251800-
/O.CON.KMSO.WC.Y.0002.000000T0000Z-090125T1800Z/
FLATHEAD/MISSION VALLEYS-POTOMAC/SEELEY LAKE REGION-
259 AM MST SUN JAN 25 2009

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

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

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THROUGH THIS
MORNING. AREAS MOST IMPACTED WILL BE THE NORTHERN FLATHEAD VALLEY
AND POTOMAC AREA...ALONG HIGHWAY 200 INTO EAST MISSOULA.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
000 
WWUS45 KMSO 251322
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
622 AM MST SUN JAN 25 2009

IDZ006-007-MTZ005-006-251430-
/O.CAN.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-
MISSOULA/BITTERROOT VALLEYS-BITTERROOT/SAPPHIRE MOUNTAINS-
622 AM MST SUN JAN 25 2009 /522 AM PST SUN JAN 25 2009/

...WINTER WEATHER ADVISORY IS CANCELLED...

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

PERIODS OF LIGHT SNOW WILL CONTINUE THIS MORNING WITH ADDITIONAL
ACCUMULATIONS GENERALLY LESS THAN AN INCH THROUGH THE REMAINDER OF
THE MORNING.


$$

MTZ003-043-251430-
/O.CAN.KMSO.WC.Y.0002.000000T0000Z-090125T1800Z/
FLATHEAD/MISSION VALLEYS-POTOMAC/SEELEY LAKE REGION-
622 AM MST SUN JAN 25 2009

...WIND CHILL ADVISORY IS CANCELLED...

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


$$

MTZ007-251800-
/O.CON.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
BUTTE/BLACKFOOT REGION-
622 AM MST SUN JAN 25 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

STEADY SNOW WILL CONTINUE THIS MORNING WITH AN ADDITIONAL 1 TO
2 INCHES OF SNOW POSSIBLE.

IN ADDITION TO SNOW... ALONG AND NORTH OF GARRISON JUNCTION...
COLD TEMPERATURES AND EAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO THROUGH THIS
MORNING. AREAS MOST IMPACTED WILL BE THE OVANDO AND HELMVILLE
AREAS.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING
SNOW...AND DANGEROUS WIND CHILLS. BE PREPARED FOR SLIPPERY ROADS
AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

MTZ002-251800-
/O.CON.KMSO.WC.Y.0002.000000T0000Z-090125T1800Z/
WEST GLACIER REGION-
622 AM MST SUN JAN 25 2009

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

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

COLD TEMPERATURES AND NORTHEAST WINDS 15 TO 25 MPH WILL CREATE
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THROUGH THIS
MORNING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
000 
WWUS45 KMSO 251757
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1057 AM MST SUN JAN 25 2009

MTZ007-260000-
/O.EXP.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
/O.EXB.KMSO.WC.Y.0002.090125T1800Z-090126T0000Z/
BUTTE/BLACKFOOT REGION-
1057 AM MST SUN JAN 25 2009

...WIND CHILL ADVISORY IN EFFECT UNTIL 5 PM MST THIS AFTERNOON...
...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. THE
WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING. 

IMMEDIATELY EAST OF THE CONTINENTAL DIVIDE AND ALONG INTERSTATE 90
CORRIDOR...COLD TEMPERATURES AND EAST WINDS UP TO 25 MPH WILL RESULT
IN DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THROUGH THIS
EVENING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ043-260000-
/O.EXB.KMSO.WC.Y.0002.090125T1800Z-090126T0000Z/
POTOMAC/SEELEY LAKE REGION-
1057 AM MST SUN JAN 25 2009

...WIND CHILL ADVISORY IN EFFECT UNTIL 5 PM MST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. 

COLD TEMPERATURES AND NORTHEAST WINDS UP TO 25 MPH WILL RESULT IN
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THROUGH THIS
EVENING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ002-260000-
/O.EXT.KMSO.WC.Y.0002.000000T0000Z-090126T0000Z/
WEST GLACIER REGION-
1057 AM MST SUN JAN 25 2009

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

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

IMMEDIATELY EAST OF THE CONTINENTAL DIVIDE...COLD TEMPERATURES AND
NORTHEAST WINDS UP TO 25 MPH WILL RESULT IN DANGEROUS WIND CHILLS
OF 10 BELOW TO 20 BELOW ZERO THROUGH THIS EVENING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
000 
WWUS45 KMSO 251939 CCA
WSWMSO

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MISSOULA MT
1238 PM MST SUN JAN 25 2009

MTZ007-260000-
/O.EXP.KMSO.WW.Y.0030.000000T0000Z-090125T1800Z/
/O.COR.KMSO.WC.Y.0002.090125T1800Z-090126T0000Z/
BUTTE/BLACKFOOT REGION-
1238 PM MST SUN JAN 25 2009

...WIND CHILL ADVISORY IN EFFECT UNTIL 5 PM MST THIS AFTERNOON...
...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. THE
WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING. 

IMMEDIATELY WEST OF THE CONTINENTAL DIVIDE AND ALONG INTERSTATE 90
CORRIDOR...COLD TEMPERATURES AND EAST WINDS UP TO 25 MPH WILL
RESULT IN DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO
THROUGH THIS EVENING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ043-260000-
/O.EXB.KMSO.WC.Y.0002.090125T1800Z-090126T0000Z/
POTOMAC/SEELEY LAKE REGION-
1238 PM MST SUN JAN 25 2009

...WIND CHILL ADVISORY IN EFFECT UNTIL 5 PM MST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. 

COLD TEMPERATURES AND NORTHEAST WINDS UP TO 25 MPH WILL RESULT IN
DANGEROUS WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THROUGH THIS
EVENING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MTZ002-260000-
/O.COR.KMSO.WC.Y.0002.000000T0000Z-090126T0000Z/
WEST GLACIER REGION-
1238 PM MST SUN JAN 25 2009

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

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

IMMEDIATELY WEST OF THE CONTINENTAL DIVIDE...COLD TEMPERATURES AND
NORTHEAST WINDS UP TO 25 MPH WILL RESULT IN DANGEROUS WIND CHILLS
OF 10 BELOW TO 20 BELOW ZERO THROUGH THIS EVENING.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$
000 
WWUS45 KMSO 252134
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
234 PM MST SUN JAN 25 2009

MTZ002-007-043-252245-
/O.CAN.KMSO.WC.Y.0002.000000T0000Z-090126T0000Z/
WEST GLACIER REGION-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
234 PM MST SUN JAN 25 2009

...WIND CHILL ADVISORY IS CANCELLED...

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

STRONG EASTERLY SURFACE WIND JUST WEST OF THE CONTINENTAL DIVIDE
HAS DISSIPATED SIGNIFICANTLY DURING THE PAST SEVERAL HOURS...WITH
TEMPERATURES SLOWLY RISING NEAR OR ABOVE ZERO AT MANY LOCATIONS.
THEREFORE...THE WIND CHILL ADVISORY HAS BEEN CANCELLED.

$$
000 
WWUS45 KMSO 252225 RRA
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
234 PM MST SUN JAN 25 2009

MTZ002-007-043-252245-
/O.CAN.KMSO.WC.Y.0002.000000T0000Z-090126T0000Z/
WEST GLACIER REGION-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
234 PM MST SUN JAN 25 2009

...WIND CHILL ADVISORY IS CANCELLED...

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

STRONG EASTERLY SURFACE WIND JUST WEST OF THE CONTINENTAL DIVIDE
HAS DISSIPATED SIGNIFICANTLY DURING THE PAST SEVERAL HOURS...WITH
TEMPERATURES SLOWLY RISING NEAR OR ABOVE ZERO AT MANY LOCATIONS.
THEREFORE...THE WIND CHILL ADVISORY HAS BEEN CANCELLED.

$$

What forecasters said that day

The local office's own words before this wind chill advisory 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 advisory went out at Jan 24, 3:25 AM MST, 0 minutes earlier.

Area forecast discussion, Jan 24, 3:25 AM MST, 0 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
325 AM MST SAT JAN 24 2009

.DISCUSSION...THE INTERACTION OF MOISTURE MOVING IN OFF THE
PACIFIC AND A CANADIAN SYSTEM DIVING SOUTHWARD ACROSS THE NORTHERN
ROCKIES WILL PROVIDE SNOWFALL TO MANY AREAS OF WESTERN MONTANA AND
NORTH-CENTRAL IDAHO DURING THE NEXT 24 HOURS. GREATEST SNOWFALL IS
EXPECTED OVER IDAHO COUNTY TONIGHT WHERE A WINTER WEATHER
ADVISORY HAS BEEN ISSUED. NORTHERLY LOW-LEVEL WINDS WILL PROVIDE A
UPSLOPE COMPONENT WHICH SHOULD CONTRIBUTE TO THE CREATION OF SNOW
IN CENTRAL IDAHO.

ELSEWHERE...THE PRIMARY IMPACT ASSOCIATED WITH THIS CANADIAN
SYSTEM WILL BE COLD TEMPERATURES. A TIGHT NORTHEAST SURFACE
PRESSURE GRADIENT WILL HELP CREATE GUSTY WINDS THROUGH THE GAPS OF
THE DIVIDE OVERNIGHT TONIGHT AND INTO SUNDAY MORNING. THE
COMBINATION OF THESE WINDS AND COLD TEMPERATURES WILL CREATE
DANGEROUS WINDS CHILL VALUES.

LATER SUNDAY AND SUNDAY NIGHT...SNOW WILL TAPER OFF AND WINDS
DECREASE WITH THE PASSAGE OF THE CANADIAN SYSTEM. HOWEVER...A COLD
AIR MASS WILL REMAIN OVER THE REGION WITH VERY COLD TEMPERATURES
SUNDAY NIGHT.

MONDAY THROUGH FRIDAY...DRIER AIR MOVES IN QUICKLY BEHIND THE
EXITING SYSTEM WHICH WILL ALLOW FOR SOME SUNSHINE ON MONDAY. A WEAK
SURFACE PRESSURE GRADIENT AND COLD AIR ALREADY IN PLACE WILL KEEP
TEMPERATURES COOLER THAN AVERAGE HOWEVER. A LITTLE BETTER MIXING IS
POSSIBLE ON TUESDAY AHEAD OF AN APPROACHING SHORTWAVE TROUGH THAT
WILL BRING MORE SNOW TO THE FORECAST. MODELS ARE IN FAIRLY GOOD
AGREEMENT THAT THIS SYSTEM WILL MOVE IN TUESDAY NIGHT AND LAST
THROUGH EARLY AFTERNOON WEDNESDAY. THE MOST FAVORED LOCATION FOR
SNOWFALL WILL BE OVER CENTRAL IDAHO WHERE THE BEST FORCING
EXISTS. THE GFS IS FAILING TO PRODUCE MUCH PRECIPITATION FARTHER
EAST NEAR THE BUTTE AREA HOWEVER THE EUROPEAN IS SHOWING A SECOND
AREA FOR FAVORED SNOWFALL HERE. BOTH MODELS SHOW THE SAME FORCING
MECHANISMS IN PLACE IN THIS AREA SO DECIDED TO INCREASE THE
POTENTIAL FOR PRECIPITATION IN THIS AREA.

THE LONGER RANGE BECOMES LESS PREDICTABLE UNDER A NORTHWESTERLY
FLOW THAT CONTINUES OVER THE AREA. THERE IS THE POTENTIAL OF A
SYSTEM MOVING IN LATE IN THE WEEK OR OVER THE WEEKEND THAT WOULD
BRING ANOTHER SHOT OF SNOW TO THE AREA.

&&

.AVIATION...CLOUDS WILL BE OBSCURING MOUNTAINS AND MOUNTAIN PASSES
DURING THE NEXT 24 HOURS. IN ADDITION...LIGHT SNOW WILL BE
SPREADING INTO IDAHO AND WESTERN MONTANA LATER TODAY AND CONTINUE
OVERNIGHT REDUCING VISIBILITIES AND CEILINGS AT TIMES.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...     WIND CHILL ADVISORY FROM 2 AM TO 11 AM MST SUNDAY FOR
     MISSOULA/BITTERROOT VALLEYS.

     WIND CHILL ADVISORY FROM 11 PM THIS EVENING TO 11 AM MST SUNDAY
     FOR FLATHEAD/MISSION VALLEYS-POTOMAC/SEELEY LAKE REGION.

     WIND CHILL ADVISORY FROM 9 PM THIS EVENING TO 11 AM MST SUNDAY
     FOR WEST GLACIER REGION.

ID...WINTER WEATHER ADVISORY FROM 2 PM THIS AFTERNOON TO 8 AM PST
     SUNDAY FOR OROFINO/GRANGEVILLE REGION-SOUTHERN CLEARWATER
     MOUNTAINS.

&&

SHORT TERM...MSJ
LONG TERM....LOEFFELBEIN
AVIATION...MSJ
Hazardous weather outlook, Jan 23, 5:14 PM MST, 10 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
514 PM MST FRI JAN 23 2009

MTZ002-003-007-043-241215-
WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS-
BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION-
514 PM MST FRI JAN 23 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
MONTANA AND WEST CENTRAL MONTANA.

.DAY ONE...TONIGHT

GUSTY EAST TO NORTHEAST WINDS WILL CONTINUE...ESPECIALLY ALONG
THE US HIGHWAY 2...HIGHWAY 200 AND HIGHWAY 12 CORRIDORS AND IN THE
FLATHEAD VALLEY THROUGH TONIGHT. THE COMBINATION OF COLD...ARCTIC
AIR AND WIND MAY RESULT IN SOME VERY COLD WIND CHILL READINGS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

COLDER ARCTIC WILL CONTINUE TO MOVE INTO THE REGION AND PERSIST
THROUGH MONDAY NIGHT. LOW WIND CHILLS ARE POSSIBLE THROUGH
SATURDAY NIGHT...ESPECIALLY IN THE FLATHEAD VALLEY AND VALLEYS IN
THE GLACIER NATIONAL PARK REGION. AREAS OF LIGHT SNOW OR FLURRIES
MAY BE EXPERIENCED SATURDAY NIGHT THROUGH MIDDAY SUNDAY.

WINDS WILL DECREASE UNDER VERY DRY CONDITIONS AND SKIES WILL CLEAR
SUNDAY NIGHT. SUNDAY AND MONDAY NIGHT WILL BE THE COLDEST NIGHTS WITH
OVERNIGHT LOWS EXPECTED TO 10 BELOW ZERO OR COLDER IN THE
SEELEY/SWAN VALLEYS AND THE VALLEYS OF GLACIER NATIONAL PARK
REGION...INCLUDING POLEBRIDGE. THE FLATHEAD VALLEY...INCLUDING
KALISPELL AND WHITEFISH...WILL EXPERIENCE LOW TEMPERATURES NEAR OR
BELOW ZERO.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

IDZ005>010-MTZ005-006-241215-
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
MISSOULA/BITTERROOT VALLEYS-BITTERROOT/SAPPHIRE MOUNTAINS-
514 PM MST FRI JAN 23 2009 /414 PM PST FRI JAN 23 2009/

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

.DAY ONE...TONIGHT

HAZARDOUS WEATHER IS NOT EXPECTED THROUGH THE NEXT TWENTY FOUR
HOURS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SATURDAY AND SUNDAY...AN UPPER LEVEL LOW OVER THE WEST COAST WITH A
SURFACE FRONTAL BOUNDARY IN CENTRAL IDAHO AND SOUTHWEST MONTANA
WILL DEVELOP. WIDESPREAD ACCUMULATING SNOW IS EXPECTED OVER THE
MOUNTAINS OF CENTRAL IDAHO AND SOUTHWEST MONTANA. SNOW
ACCUMULATIONS IN THE VALLEYS MAY VARY FROM VERY LIGHT
TO MODERATE IN UPSLOPE AREAS NEAR MOUNTAIN SLOPES. HAZARDOUS
TRAVEL IS POSSIBLE OVER THE MOUNTAIN PASSES AND IN SOME VALLEYS
SATURDAY AFTERNOON THROUGH SUNDAY.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 24, 3:25 AM MSTWinter Weather AdvisoryMSODeer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow32 hr

Nearby

Wind Chill Advisories in Montana, 2009Every wind chill advisory in 2009

Sources

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