Alert archive / Montana / Wind Chill Warnings in 2007

Wind Chill Warning 1, NWS Missoula, MT

January 10, 20077 counties in Montana

NWS Missoula, MT issued this wind chill warning at Jan 10, 2007, 10:21 AM MST for 7 counties in Montana. It took effect at Jan 10, 2007, 3:18 PM MST. It was in force for 20 hr. 10 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
Jan 10, 2007, 10:21 AM MST (17:21 UTC)
In effect from
Jan 10, 2007, 3:18 PM MST
Expired
Jan 11, 2007, 11:00 AM MST
In force
20 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, Silver Bow County, MT

The radar

The Missoula radar (KMSX), 44 km from the middle of the area, began a volume at 17:25 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
Jan 11, 1:05 AM MSTEXTR WIND CHILL 28Avon, MTWIND CHILL READING OF 28 DEGREES BELOW ZERO REPORTED AT 105 AM.
Jan 11, 1:10 AM MSTEXTR WIND CHILL 27Avon, MTAVON NORTH HIGHWAY 141 MILE POST 8.1 WEATHER STATION REPORTED WIND CHILL READINGS OF 27 DEGREES BELOW ZERO FROM 100 AM TO 300 AM THIS MORNING. MCDONALD PASS REPORTED WIND CHILL READINGS OF 33 DEGREES BELOW ZERO FROM 200 AM TO 700 AM THIS MORNING.
Jan 11, 4:10 AM MSTEXTR WIND CHILL 22Essex, MTDEPARTMENT OF TRANSPORTATION ESSEX WEATHER STATION REPORTED WIND CHILL READINGS OF 22 DEGREES BELOW ZERO FROM 410 AM TO 445 AM THIS MORNING.
Jan 11, 5:05 AM MSTEXTR WIND CHILL 30Helmville, MTDEPARTMENT OF TRANSPORTATION WEATHER STATION AT HELMVILLE REPORTED WIND CHILL READINGS OF 30 DEGREES BELOW ZERO FROM 500 AM TO 630 AM THIS MORNING.
Jan 11, 5:53 AM MSTEXTR WIND CHILL 24Butte, MTBUTTE AIRPORT ASOS REPORTED WIND CHILL READING OF 24 DEGREES BELOW ZERO AT 553 AM THIS MORNING.
Jan 11, 6:45 AM MSTEXTR WIND CHILL 29Deer Lodge, MTWIND CHILL READINGS OF 29 DEGREES BELOW ZERO REPORTED AT 645 AM.
Jan 11, 7:05 AM MSTEXTR WIND CHILL 32Helmville, MTWIND CHILL READING OF 32 DEGREES BELOW ZERO REPORTED AT 705 AM.
Jan 11, 7:55 AM MSTEXTR WIND CHILL 124 W Missoula, MTMISSOULA AIRPORT WIND CHILL READING SO FAR THIS MORNING REPORTED 12 DEGREES BELOW ZERO AT 800 AM.
Jan 11, 7:55 AM MSTEXTR WIND CHILL 15Kalispell, MTWIND CHILL READINGS IN THE NORTHERN FLATHEAD VALLEY RANGED FROM 11 BELOW ZERO AT THE KALISPELL JUSTICE CENTER TO 15 BELOW ZERO AT GLACIER INTERNATIONAL AIRPORT FROM 600 AM TO 800 AM THIS MORNING.
Jan 11, 9:00 AM MSTEXTR WIND CHILL 27Philipsburg, MTWIND CHILL READING OF 27 DEGREES BELOW ZERO REPORTED AT PHILIPSBURG AT 900 AM.

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

The nearest sounding before it

Great_falls, MT (KTFX), launched 12:00Z, 5.4 hours before the alert went out and 225 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, Great_falls, MT at 12:00Z on 2007-01-10Temperature 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 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Great_falls, MT at 12:00Z on 2007-01-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 square meters per square second.1939587897Sfc1 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
2245 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
356 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 101721
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1021 AM MST WED JAN 10 2007

.STRONG WINDS ALONG AND BEHIND AN ARCTIC FRONT WILL COMBINE WITH
VERY COLD AIR BEHIND THIS FRONT LATE TONIGHT AND THURSDAY FOR
DANGEROUSLY LOW WIND CHILLS ACROSS PORTIONS OF NORTHWEST MONTANA.

MTZ002-110130-
/O.NEW.KMSO.WC.W.0001.070111T0000Z-070111T1800Z/
WEST GLACIER REGION-
1021 AM MST WED JAN 10 2007

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

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 THURSDAY. 

WIND CHILL READINGS OF 20 BELOW TO 30 BELOW ZERO WILL BE COMMON
ACROSS THE WEST GLACIER TONIGHT AND THURSDAY.

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.

$$

MTZ001-003-110130-
/O.NEW.KMSO.WC.Y.0001.070111T0300Z-070111T1800Z/
KOOTENAI/CABINET REGION-FLATHEAD/MISSION VALLEYS-
1021 AM MST WED JAN 10 2007

...WIND CHILL ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 11 AM
MST THURSDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 11 AM MST
THURSDAY. 

WIND CHILL READINGS OF 10 BELOW TO 20 BELOW ZERO WILL BE COMMON
OVER THE KOOTENAI...CABINET REGIONS AND THE FLATHEAD...MISSION
VALLEYS TONIGHT AND THURSDAY.

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.

$$
6 follow-up statements
000 
WWUS45 KMSO 102218
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
318 PM MST WED JAN 10 2007

.STRONG WINDS ALONG AND BEHIND AN ARCTIC FRONT WILL COMBINE WITH
VERY COLD AIR BEHIND THIS FRONT LATE TONIGHT AND THURSDAY FOR
DANGEROUSLY LOW WIND CHILLS ACROSS PORTIONS OF WESTERN MONTANA. A
LINE OF SNOW IS EXPECTED ALONG THE FRONT...ALTHOUGH LITTLE TO NO
SNOW ACCUMULATION IS EXPECTED. HOWEVER...STRONG WINDS ALONG AND
BEHIND THIS FRONT COMBINED WITH THE FRESH SNOW MAY REDUCE
VISIBILITIES AT TIMES FROM LOCAL BLOWING AND DRIFTING SNOW.

MTZ007-043-110600-
/O.EXB.KMSO.WC.W.0001.070111T0900Z-070111T1800Z/
BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION-
318 PM MST WED JAN 10 2007

...WIND CHILL WARNING IN EFFECT FROM 2 AM TO 11 AM MST THURSDAY...

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

WIND CHILL READINGS OF 20 DEGREES BELOW TO 30 DEGREES BELOW ZERO
WILL DEVELOP LATE TONIGHT OVER THE BUTTE...BLACKFOOT REGION...AND
EAST WEST ORIENTED CANYONS OF THE POTOMAC AND SEELEY LAKE REGION.
LOCAL WIND GUSTS UP TO 40 MPH WILL BE COMMON THROUGH CANYONS EARLY
THURSDAY MORNING.


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.

$$

MTZ002-110600-
/O.CON.KMSO.WC.W.0001.070111T0000Z-070111T1800Z/
WEST GLACIER REGION-
318 PM MST WED JAN 10 2007

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

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

WIND CHILL READINGS OF 20 BELOW TO 30 DEGREES BELOW ZERO WILL BE
COMMON ACROSS THE WEST GLACIER TONIGHT AND THURSDAY. LOCAL
WIND GUSTS UP TO 40 MPH WILL BE COMMON THROUGH THE HIGHWAY 2 CORRIDOR
OVERNIGHT. 


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.

$$

MTZ004-005-110600-
/O.EXB.KMSO.WC.Y.0001.070111T1200Z-070112T0000Z/
LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS-
318 PM MST WED JAN 10 2007

...WIND CHILL ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST THURSDAY
FOR THE MISSOULA VALLEY AND THE LOWER CLARK FORK REGION...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 5 AM TO 5 PM MST THURSDAY. 

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE MISSOULA VALLEY AND THE INTERSTATE 90 CORRIDOR
THROUGH THE LOWER CLARK FORK REGION. HELLGATE CANYON WILL LIKELY SEE
WIND GUSTS TO 35 MPH DEVELOPING EARLY THURSDAY 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.

$$

MTZ001-003-110600-
/O.EXT.KMSO.WC.Y.0001.070111T0600Z-070111T1800Z/
KOOTENAI/CABINET REGION-FLATHEAD/MISSION VALLEYS-
318 PM MST WED JAN 10 2007

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

THE WIND CHILL ADVISORY IS NOW IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM MST THURSDAY. 

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE KOOTENAI...CABINET REGION AND THE
FLATHEAD AND MISSION VALLEYS LATE TONIGHT AND THURSDAY. LOCAL
WIND GUSTS UP TO 40 MPH WILL BE COMMON THROUGH BADROCK CANYON
AND THE NORTHERN FLATHEAD VALLEY LATER TONIGHT INTO EARLY
THURSDAY 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 110534
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1034 PM MST WED JAN 10 2007

.STRONG WINDS ALONG AND BEHIND AN ARCTIC FRONT WILL COMBINE WITH
VERY COLD AIR BEHIND THIS FRONT TONIGHT AND THURSDAY PRODUCING 
DANGEROUSLY LOW WIND CHILLS ACROSS PORTIONS OF WESTERN MONTANA. A
LINE OF SNOW IS EXPECTED ALONG THE FRONT...ALTHOUGH LITTLE TO NO
SNOW ACCUMULATION IS EXPECTED. HOWEVER...STRONG WINDS ALONG AND
BEHIND THIS FRONT COMBINED WITH THE FRESH SNOW MAY REDUCE
VISIBILITIES AT TIMES FROM LOCAL BLOWING AND DRIFTING SNOW.

MTZ002-111200-
/O.CON.KMSO.WC.W.0001.000000T0000Z-070111T1800Z/
WEST GLACIER REGION-
1034 PM MST WED JAN 10 2007

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

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

WIND CHILL READINGS OF 20 BELOW TO 30 DEGREES BELOW ZERO WILL BE
COMMON ACROSS THE WEST GLACIER TONIGHT AND THURSDAY. LOCAL WIND
GUSTS UP TO 40 MPH WILL BE COMMON THROUGH THE HIGHWAY 2 CORRIDOR
OVERNIGHT.

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.

$$

MTZ007-043-111200-
/O.CON.KMSO.WC.W.0001.070111T0900Z-070111T1800Z/
BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION-
1034 PM MST WED JAN 10 2007

...WIND CHILL WARNING REMAINS IN EFFECT FROM 2 AM TO 11 AM MST
THURSDAY...

A WIND CHILL WARNING REMAINS IN EFFECT FROM 2 AM TO 11 AM MST
THURSDAY. 

WIND CHILL READINGS OF 20 DEGREES BELOW TO 30 DEGREES BELOW ZERO
WILL DEVELOP LATE TONIGHT OVER THE BUTTE...BLACKFOOT REGION...AND
EAST WEST ORIENTED CANYONS OF THE POTOMAC AND SEELEY LAKE REGION.
LOCAL WIND GUSTS UP TO 40 MPH WILL BE COMMON THROUGH CANYONS
EARLY THURSDAY MORNING.

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.

$$

MTZ001-003-111200-
/O.CON.KMSO.WC.Y.0001.070111T0600Z-070111T1800Z/
KOOTENAI/CABINET REGION-FLATHEAD/MISSION VALLEYS-
1034 PM MST WED JAN 10 2007

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

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

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE KOOTENAI...CABINET REGION AND THE FLATHEAD AND
MISSION VALLEYS LATE TONIGHT AND THURSDAY. LOCAL WIND GUSTS UP TO
40 MPH WILL BE COMMON THROUGH BADROCK CANYON AND THE NORTHERN
FLATHEAD VALLEY LATER TONIGHT INTO EARLY THURSDAY 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.

$$

MTZ004-005-111200-
/O.CON.KMSO.WC.Y.0001.070111T1200Z-070112T0000Z/
LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS-
1034 PM MST WED JAN 10 2007

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST
THURSDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST
THURSDAY. 

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE MISSOULA VALLEY AND THE INTERSTATE 90 CORRIDOR
THROUGH THE LOWER CLARK FORK REGION. HELLGATE CANYON WILL LIKELY
SEE WIND GUSTS TO 35 MPH DEVELOPING EARLY THURSDAY 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 111156
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
456 AM MST THU JAN 11 2007

.STRONG WINDS ALONG AND BEHIND AN ARCTIC FRONT WILL COMBINE WITH
VERY COLD AIR BEHIND THIS FRONT THIS MORNING PRODUCING DANGEROUSLY LOW
WIND CHILLS ACROSS PORTIONS OF WESTERN MONTANA. ADDITIONALLY...A
LINE OF SNOW IS EXPECTED ALONG THE FRONT...WITH SOME LOCAL
ACCUMULATIONS IN NORTH CENTRAL IDAHO. STRONG WINDS ALONG AND BEHIND
THIS FRONT COMBINED WITH THE FRESH SNOW MAY REDUCE VISIBILITIES AT
TIMES FROM LOCAL BLOWING AND DRIFTING SNOW.

MTZ002-111800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-070111T1800Z/
WEST GLACIER REGION-
456 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 20 BELOW TO 30 DEGREES BELOW ZERO WILL BE
COMMON ACROSS THE WEST GLACIER THURSDAY. LOCAL WIND GUSTS UP TO
40 MPH WILL BE COMMON THROUGH THE HIGHWAY 2 CORRIDOR.

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.

$$

MTZ007-043-111800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-070111T1800Z/
BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION-
456 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 20 DEGREES BELOW TO 30 DEGREES BELOW ZERO
WILL DEVELOP TODAY OVER THE BUTTE...BLACKFOOT REGION...AND EAST
WEST ORIENTED CANYONS OF THE POTOMAC AND SEELEY LAKE REGION. LOCAL
WIND GUSTS UP TO 40 MPH WILL BE COMMON THROUGH CANYONS EARLY
THIS MORNING.

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.

$$

IDZ005>007-111700-
/O.NEW.KMSO.SN.Y.0005.070111T1200Z-070111T1700Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
OROFINO/GRANGEVILLE REGION-
356 AM PST THU JAN 11 2007

...SNOW ADVISORY IN EFFECT UNTIL 9 AM PST THIS MORNING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW
ADVISORY...WHICH IS IN EFFECT UNTIL 9 AM PST THIS MORNING. 

ACCUMULATIONS OF 1 TO 3 INCHES IN THE VALLEYS WITH UP TO 6 INCHES
IN THE HIGHER TERRAIN IS EXPECTED BY LATE THIS MORNING. 

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

$$

MTZ001-003-111800-
/O.CON.KMSO.WC.Y.0001.000000T0000Z-070111T1800Z/
KOOTENAI/CABINET REGION-FLATHEAD/MISSION VALLEYS-
456 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE KOOTENAI...CABINET REGION AND THE FLATHEAD AND
MISSION VALLEYS THIS MORNING. LOCAL WIND GUSTS UP TO 40 MPH WILL BE
COMMON THROUGH BADROCK CANYON AND THE NORTHERN FLATHEAD VALLEY
LATER TONIGHT INTO EARLY THURSDAY 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.

$$

MTZ004-005-111800-
/O.CON.KMSO.WC.Y.0001.070111T1200Z-070112T0000Z/
LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS-
456 AM MST THU JAN 11 2007

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

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

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE MISSOULA VALLEY AND THE INTERSTATE 90 CORRIDOR
THROUGH THE LOWER CLARK FORK REGION. HELLGATE CANYON WILL LIKELY
SEE WIND GUSTS TO 35 MPH DEVELOPING EARLY 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 111513
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
813 AM MST THU JAN 11 2007


MTZ002-111800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-070111T1800Z/
WEST GLACIER REGION-
813 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 20 BELOW TO 30 DEGREES BELOW ZERO WILL BE
COMMON ACROSS THE WEST GLACIER THIS MORNING. LOCAL WIND GUSTS UP
TO 40 MPH WILL BE COMMON THROUGH THE HIGHWAY 2 CORRIDOR.

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.

$$

MTZ007-043-111800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-070111T1800Z/
BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION-
813 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 20 DEGREES BELOW TO 30 DEGREES BELOW ZERO
WILL DEVELOP TODAY OVER THE BUTTE...BLACKFOOT REGION...AND EAST
WEST ORIENTED CANYONS OF THE POTOMAC AND SEELEY LAKE REGION.
LOCAL WIND GUSTS UP TO 40 MPH WILL BE COMMON THROUGH CANYONS
EARLY THIS MORNING.

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.

$$

IDZ010-112230-
/O.EXA.KMSO.WC.Y.0001.000000T0000Z-070112T0000Z/
EASTERN LEMHI COUNTY-
813 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER EASTERN LEMHI COUNTY THROUGH THE LEMHI RIVER VALLEY. LOCAL
READINGS BETWEEN 20 BELOW AND 25 BELOW ZERO ARE POSSIBLE WITH
HIGHER WINDS EARLY 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.

$$

IDZ005>007-111700-
/O.CON.KMSO.SN.Y.0005.000000T0000Z-070111T1700Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
OROFINO/GRANGEVILLE REGION-
713 AM PST THU JAN 11 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING. 

ACCUMULATIONS OF 1 TO 3 INCHES IN THE VALLEYS WITH UP TO 6 INCHES
IN THE HIGHER TERRAIN IS EXPECTED BY LATE THIS MORNING.

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

$$

MTZ001-003-111800-
/O.CON.KMSO.WC.Y.0001.000000T0000Z-070111T1800Z/
KOOTENAI/CABINET REGION-FLATHEAD/MISSION VALLEYS-
813 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE KOOTENAI...CABINET REGION AND THE FLATHEAD AND
MISSION VALLEYS THIS MORNING. LOCAL WIND GUSTS UP TO 40 MPH WILL
BE COMMON THROUGH BADROCK CANYON AND THE NORTHERN FLATHEAD VALLEY
LATER TONIGHT INTO EARLY THURSDAY 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.

$$

MTZ004-005-112230-
/O.CON.KMSO.WC.Y.0001.000000T0000Z-070112T0000Z/
LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS-
813 AM MST THU JAN 11 2007

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

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

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE MISSOULA AND BITTERROOT VALLEYS AND THE INTERSTATE
90 CORRIDOR THROUGH THE LOWER CLARK FORK REGION. HELLGATE CANYON
WILL LIKELY SEE WIND GUSTS TO 35 MPH EARLY 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 111651
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
951 AM MST THU JAN 11 2007

IDZ005>007-111800-
/O.EXP.KMSO.SN.Y.0005.000000T0000Z-070111T1700Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
OROFINO/GRANGEVILLE REGION-
851 AM PST THU JAN 11 2007

...SNOW ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING...

THE SNOW ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING. SNOW
SHOWERS WILL QUICKLY DECREASE THE REMAINDER OF THE MORNING.
HOWEVER...NORTHEAST WINDS MAY PRODUCE LOCAL DRIFTING SNOW INTO
THE AFTERNOON.

$$

MTZ002-111800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-070111T1800Z/
WEST GLACIER REGION-
951 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 20 BELOW TO 30 DEGREES BELOW ZERO WILL BE
COMMON ACROSS THE WEST GLACIER THIS MORNING. LOCAL WIND GUSTS UP
TO 40 MPH WILL BE COMMON THROUGH THE HIGHWAY 2 CORRIDOR.

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.

$$

MTZ007-043-111800-
/O.CON.KMSO.WC.W.0001.000000T0000Z-070111T1800Z/
BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION-
951 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 20 DEGREES BELOW TO 30 DEGREES BELOW ZERO
WILL DEVELOP TODAY OVER THE BUTTE...BLACKFOOT REGION...AND EAST
WEST ORIENTED CANYONS OF THE POTOMAC AND SEELEY LAKE REGION.
LOCAL WIND GUSTS UP TO 40 MPH WILL BE COMMON THROUGH CANYONS
EARLY THIS MORNING.

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.

$$

IDZ010-111800-
/O.CON.KMSO.WC.Y.0001.000000T0000Z-070112T0000Z/
EASTERN LEMHI COUNTY-
951 AM MST THU JAN 11 2007

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

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

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER EASTERN LEMHI COUNTY THROUGH THE LEMHI RIVER VALLEY.
LOCAL READINGS BETWEEN 20 BELOW AND 25 BELOW ZERO ARE POSSIBLE
WITH HIGHER WINDS EARLY 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.

$$

MTZ001-003-111800-
/O.CON.KMSO.WC.Y.0001.000000T0000Z-070111T1800Z/
KOOTENAI/CABINET REGION-FLATHEAD/MISSION VALLEYS-
951 AM MST THU JAN 11 2007

...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. 

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE KOOTENAI...CABINET REGION AND THE FLATHEAD AND
MISSION VALLEYS THIS MORNING. LOCAL WIND GUSTS UP TO 40 MPH WILL
BE COMMON THROUGH BADROCK CANYON AND THE NORTHERN FLATHEAD VALLEY
LATER TONIGHT INTO EARLY THURSDAY 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.

$$

MTZ004-005-111800-
/O.CON.KMSO.WC.Y.0001.000000T0000Z-070112T0000Z/
LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS-
951 AM MST THU JAN 11 2007

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

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

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE MISSOULA AND BITTERROOT VALLEYS AND THE
INTERSTATE 90 CORRIDOR THROUGH THE LOWER CLARK FORK REGION.
HELLGATE CANYON WILL LIKELY SEE WIND GUSTS TO 35 MPH EARLY 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 111802
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1102 AM MST THU JAN 11 2007

MTZ002-111915-
/O.EXP.KMSO.WC.W.0001.000000T0000Z-070111T1800Z/
WEST GLACIER REGION-
1102 AM MST THU JAN 11 2007

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

THE WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING.
WINDS WILL CONTINUE TO DIMINISH THROUGH THE REMAINDER OF THE DAY.
HOWEVER...LOCAL WIND CHILL READINGS OF 10 TO 20 BELOW ZERO WILL CONTINUE
THROUGH THE AFTERNOON.  

$$

MTZ007-043-111915-
/O.EXP.KMSO.WC.W.0001.000000T0000Z-070111T1800Z/
BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION-
1102 AM MST THU JAN 11 2007

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

THE WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING. 
WINDS WILL CONTINUE TO DIMINISH THROUGH THE REMAINDER OF THE DAY.
HOWEVER...LOCAL WIND CHILL READINGS OF 10 TO 20 BELOW ZERO WILL
CONTINUE THROUGH THE AFTERNOON.

$$

MTZ001-003-111915-
/O.EXP.KMSO.WC.Y.0001.000000T0000Z-070111T1800Z/
KOOTENAI/CABINET REGION-FLATHEAD/MISSION VALLEYS-
1102 AM MST THU JAN 11 2007

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

THE WIND CHILL ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING. 
WINDS WILL CONTINUE TO DIMINISH THROUGH THE REMAINDER OF THE DAY.
HOWEVER...LOCAL WIND CHILL READINGS OF 10 TO 15 BELOW ZERO WILL CONTINUE
THROUGH THE AFTERNOON.  

$$

IDZ010-112200-
/O.CON.KMSO.WC.Y.0001.000000T0000Z-070112T0000Z/
EASTERN LEMHI COUNTY-
1102 AM MST THU JAN 11 2007

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

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

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER EASTERN LEMHI COUNTY THROUGH THE LEMHI RIVER VALLEY.
LOCAL READINGS BETWEEN 20 BELOW AND 25 BELOW ZERO ARE POSSIBLE
WITH HIGHER WINDS 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.

$$

MTZ004-005-112200-
/O.CON.KMSO.WC.Y.0001.000000T0000Z-070112T0000Z/
LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS-
1102 AM MST THU JAN 11 2007

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

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

WIND CHILL READINGS OF 10 BELOW TO 20 DEGREES BELOW ZERO WILL BE
COMMON OVER THE MISSOULA AND BITTERROOT VALLEYS AND THE
INTERSTATE 90 CORRIDOR THROUGH THE LOWER CLARK FORK REGION.
HELLGATE CANYON WILL LIKELY SEE WIND GUSTS TO 35 MPH THROUGH MID
DAY. 

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.

$$

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 Jan 10, 9:29 AM MST, 52 minutes earlier.

Area forecast discussion, Jan 10, 9:29 AM MST, 52 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
929 AM MST WED JAN 10 2007

.DISCUSSION...TAKING ANOTHER LOOK AT THE TEMPERATURES AND THE
WINDS...WILL GO AHEAD AND ISSUE A WIND CHILL WARNING FOR WEST
GLACIER AND AN WIND CHILL ADVISORY FOR THE KOOTENAI/CABINET AND
FLATHEAD/MISSION VALLEY TONIGHT THROUGH THURSDAY WITH THIS
MORNING UPDATE. THERE COULD BE SOME HAZARDOUS WEATHER RIGHT ALONG
THE FRONT TONIGHT WITH FRESH SNOW COVER AND STRONG WIND. STAY
TUNED TO LATER FORECASTS.

&&

.AVIATION...THERE WILL BE A BRIEF LULL IN WIDESPREAD PRECIPITATION
THIS MORNING. HOWEVER...SHOWERS WILL ONCE AGAIN DEVELOP THIS
AFTERNOON AND THE MOUNTAINS WILL BE OBSCURED BY CLOUDS AND
SHOWERS. IN ADDITION...WINDS WILL REMAIN STRONG THROUGH THE DAY.
PLEASE SEE APPROPRIATE TAFS AND TWEBS FOR DETAILS.

&&

PREV DISCUSSION... /ISSUED 332 AM MST WED JAN 10 2007/

DISCUSSION...AT 3 AM MDT COLD FRONT EXTENDED ROUGHLY FROM
KALISPELL TO JUST WEST OF MISSOULA THROUGH IDAHO TO THE HELLS
CANYON AREA. AREAS OF RAIN AND STRONG SOUTHWEST WINDS HAVE
OCCURRED AHEAD OF THE FRONT...WITH TEMPERATURES AND SNOW LEVELS
DROPPING RAPIDLY IN ITS WAKE. HAVE DROPPED MOST OF THE SNOW
ADVISORIES AS MUCH OF THE PRECIPITATION THIS MORNING WILL BE
PRE-FRONTAL...AND THUS RAIN IN THE VALLEYS. SNOW SHOWERS BEHIND THE
FRONT WILL BE LESS WIDESPREAD AND ARE NOT EXPECTED TO WARRANT A
BROAD SCALE ADVISORY. THE EXCEPTION TO THIS IS THE GRANGEVILLE AREA
AND PORTIONS OF THE CLEARWATER MOUNTAINS OF NORTH CENTRAL IDAHO.
UPSLOPE WINDS BEHIND THE FRONT SHOULD GIVE THAT AREA A QUICK BURST
OF SNOW AND BLOWING SNOW EARLY THIS MORNING. SNOW HAS ALREADY
BEGUN IN GRANGEVILLE.

WIND AHEAD OF THE FRONT HAVE BEEN IMPRESSIVE...GUSTING TO NEAR 50
MPH AT TIMES. HOWEVER...POST FRONTAL WINDS HAVE BEEN A MORE
MANAGEABLE 15 TO 30 MPH AND ARE EXPECTED TO REMAIN SO THROUGH MUCH
OF THE DAY.

AIR MASS BECOMES QUITE UNSTABLE AND REMAINS MOIST TODAY BEHIND THE
FRONT...AND HAVE KEPT MODERATE SHOWER POTENTIAL ALL AREAS TODAY.
COOLER AIR FLOWING IN BEHIND THE FRONT WILL MEAN THAT DAYTIME
HIGHS WILL LIKELY BE EARLY THIS MORNING...AND IN MANY CASES HAVE
ALREADY OCCURRED. SO EXPECT TEMPERATURES TO REMAIN STEADY OR FALL
THROUGH THE DAY.

A LARGE TROUGH WILL MOVE INTO THE PACIFIC NORTHWEST
TONIGHT...BRINGING ARCTIC AIR INTO WESTERN MONTANA AND NORTH
CENTRAL IDAHO. NORTHEAST WINDS ARE EXPECTED TO INCREASE AS COLD
AIR FILTERS INTO THE REGION THROUGH THURSDAY NIGHT. THIS
COMBINATION OF COLD AIR AND BREEZY WINDS COULD CAUSE DANGEROUS
WIND CHILLS ALONG WITH LOCAL BLOWING SNOW. MODELS ARE NOT
GENERATING TOO MUCH SNOW WITH THE FRONT DUE TO THE DEEP DRY NORTH
FLOW. HOWEVER...WITH SATURATED LOW LEVELS FROM THE CURRENT
SYSTEM...THERE COULD BE SOME BRIEF MODERATE TO HEAVY RIGHT ALONG
THE ARCTIC FRONT AS IT MOVES THROUGH THE AREA. THERE WILL BE
LITTLE DIURNAL CHANGE IN TEMPERATURES ON THURSDAY AS THE COLD AIR
MAKES ITS WAY SOUTHWARD. IN FACT...A FEW LOCATIONS COULD
EXPERIENCE TEMPERATURES FALLING ALL DAY ON THURSDAY. THE COLDEST
NIGHT APPEARS TO BE THURSDAY NIGHT AS CLOUD COVER IS EXPECTED TO
DIMINISH AND THE COLD AIR WILL BE WELL EMBEDDED ACROSS THE AREA.

COLD AIR WILL CONTINUE TO HAVE A STRONG GRIP ON WESTERN MONTANA
AND CENTRAL IDAHO THROUGHOUT THIS WEEKEND AND INTO AT LEAST THE
BEGINNING OF NEXT WEEK. FORECAST MODELS BRING A WEAK WEATHER
SYSTEM OUT OF CANADA SATURDAY NIGHT WHICH WILL PRODUCE SCATTERED
SNOW SHOWERS ACROSS THE AREA SUNDAY. AFTER THIS SYSTEM A VERY
GRADUAL WARMING TREND WILL TAKE PLACE AS THE ARCTIC AIR CONTINUES
TO MODIFY ACROSS THE REGION. HOWEVER TEMPERATURES WILL REMAIN
BELOW NORMAL FOR THIS TIME OF THE YEAR.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WIND CHILL ADVISORY FROM 8 PM THIS EVENING TO 11 AM MST THURSDAY
     FOR FLATHEAD/MISSION VALLEYS-KOOTENAI/CABINET REGION.

     WIND CHILL WARNING FROM 5 PM THIS AFTERNOON TO 11 AM MST
     THURSDAY FOR WEST GLACIER REGION.

ID...NONE.
&&

SHORT TERM...MEAD
PREVIOUS DISCUSSION....WHITMORE
AVIATION...MEAD
Hazardous weather outlook, Jan 10, 1:00 AM MST, 9 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
100 AM MST WED JAN 10 2007

IDZ005>010-MTZ001>007-043-101900-
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-KOOTENAI/CABINET REGION-
WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS-
LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS-
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
100 AM MST WED JAN 10 2007 /1200 AM PST WED JAN 10 2007/

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

.DAY ONE...TODAY AND TONIGHT

A PASSING WEATHER SYSTEM WILL CONTINUE WIND AND SNOW TO
PORTIONS OF WESTERN MONTANA AND NORTH CENTRAL IDAHO MAINLY THROUGH
THE MORNING. PLEASE SEE GTFWSWMSO FOR FURTHER DETAILS.

TONIGHT...A BITTERLY COLD ARCTIC AIR MASS WILL PUSH INTO WESTERN
MONTANA. A BRIEF BURST OF SNOW ALONG WITH STRONG AND GUSTY EAST WINDS
WILL CREATE DANGEROUSLY COLD WIND CHILLS AND HAZARDOUS CONDITIONS
ACROSS THE AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ARCTIC AIR WILL CONTINUE TO MOVE INTO THE AREA CREATING DANGEROUSLY
COLD WIND CHILLS THROUGH FRIDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

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

weather.gov/missoula

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 10, 2:20 AM MSTWind AdvisoryMSOFlathead, Lake, Sanders114 min
Jan 10, 10:21 AM MSTWind Chill AdvisoryMSOFlathead, Lake, Lincoln, Mineral, Missoula, Ravalli and 1 more35 hr

Nearby

Wind Chill Warnings in Montana, 2007Every wind chill warning in 2007

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.