Alert archive / Montana / Wind Chill Warnings in 2008
Wind Chill Warning 2, NWS Missoula, MT
NWS Missoula, MT issued this wind chill warning at Dec 13, 2008, 2:59 PM MST for 11 counties in Montana. It was in force for 50 hr. 20 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 13, 2008, 2:59 PM MST (21:59 UTC)
- Expired
- Dec 15, 2008, 5:00 PM MST
- In force
- 50 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 22:01 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 13, 3:35 PM MST | HEAVY SNOW 6 | Essex, MT | |
| Dec 13, 4:00 PM MST | HEAVY SNOW 6 | Superior, MT | |
| Dec 13, 4:00 PM MST | HEAVY SNOW 6.4 | Thompson Falls, MT | |
| Dec 13, 4:32 PM MST | EXTR WIND CHILL -32 | 5 Se Butte, MT | BUTTE AIRPORT ASOS RECORDED WIND CHILL TEMPERATURES OF -25F TO -32F BETWEEN 253 PM TO 639 PM MST ON 12/13/08. |
| Dec 13, 5:00 PM MST | HEAVY SNOW 7.2 | 32 Sse Libby, MT | |
| Dec 13, 6:15 PM MST | HEAVY SNOW 6 | Haugan, MT | HAUGAN SCALES |
| Dec 13, 6:25 PM MST | HEAVY SNOW 6 | 9 S Condon, MT | LINDBERGH LAKE |
| Dec 13, 6:53 PM MST | EXTR WIND CHILL -32 | 5 Nw Missoula, MT | MISSOULA AIRPORT ASOS WIND CHILL TEMPERATURES READINGS DROPPED TO -20F TO -32F BETWEEN 653 PM MST ON 12/13/08 TO 1153 AM MST ON 12/15/08. |
| Dec 13, 7:00 PM MST | HEAVY SNOW 7 | Seeley Lake, MT | SEVERAL REPORTS FROM AROUND THE SEELEY LAKE AREA RANGED FROM 6 INCHES TO 7 INCHES. |
| Dec 13, 8:00 PM MST | EXTR WIND CHILL -23 | Ninemile, MT | NINE MILE RAWS WEATHER STATION RECORDED WIND CHILL TEMPERATURES OF -20F OR LESS FROM 800 PM ON 12/13/08 TO 700 AM ON 12/15/08. |
| Dec 13, 11:14 PM MST | EXTR WIND CHILL -20 | Stevensville, MT | STEVENSVILLE RAWS WEATHER STATION RECORDED WIND CHILL TEMPERATURE OF -20F. |
| Dec 14, 12:47 AM MST | EXTR WIND CHILL -26 | Polebridge, MT | POLEBRIDGE RAWS STATION RECORDED WIND CHILL TEMPERATURE OF -26F. |
| Dec 14, 1:00 AM MST | EXTR WIND CHILL -27 | St. Ignatius, MT | ST. IGNATIUS AGRIMET WEATHER STATION RECORDED WIND CHILL TEMPERATURES OF -20F TO -30F BETWEEN 645 PM MST ON 12/13/08 TO 845 AM ON 12/14/08. |
| Dec 14, 3:00 AM MST | EXTR WIND CHILL -22 | Thompson Falls, MT | THOMPSON FALLS RAWS WEATHER STATION RECORDED WIND CHILL TEMPERATURES OF -20F OR LESS FROM 300 AM TO 1200 PM ON 12/14/08. |
| Dec 14, 6:55 AM MST | EXTR WIND CHILL -28 | 6 Ne Kalispell, MT | GLACIER INTERNATIONAL AIRPORT WIND CHILL TEMPERATURES DROPPED TO -20F TO -30F BETWEEN 855 PM MST ON 12/13/08 TO 855 AM MST ON 12/15/08. |
| Dec 14, 9:14 AM MST | EXTR WIND CHILL -30 | Greenough, MT | GREENOUGH DOT WEATHER STATION RECORDED WIND CHILL TEMPERATURE OF -30F. |
| Dec 14, 9:37 AM MST | EXTR WIND CHILL -36 | Essex, MT | DANGEROUS WIND CHILL READINGS WERE RECORDED AT THE DOT OBSERVATION IN ESSEX. STARTING AT 1030 AM MST ON 12/13/08, WIND CHILLS TEMPERATURE READINGS DROPPED TO -20F AND CONTINUED TO LOWER REACHING -36F THE MORNING OF 12/14/08. WIND CHILL TEMPERATURE READINGS CON |
| Dec 14, 1:23 PM MST | EXTR WIND CHILL -44 | Helmville, MT | HELMVILE DOT WEATHER STATION RECORDED WIND CHILL TEMPERATURES OF -35F TO -44F BETWEEN 445 PM ON 12/13/08 TO 600 AM MST ON 12/14/08. |
| Dec 14, 2:13 PM MST | EXTR WIND CHILL -44 | Helmville, MT | HELMVILLE DOT WEATHER STATION RECORDED WIND CHILL TEMPERATURES OF -30F TO -44F BETWEEN 1136 AM TO 622 PM MST ON 12/14/08. |
| Dec 14, 4:41 PM MST | EXTR WIND CHILL -40 | 5 Se Butte, MT | BUTTE AIRPORT ASOS RECORDED WIND CHILL TEMPERATURES OF -33F TO -40F BETWEEN 853 AM MST ON 12/14/08 TO 1253 AM ON 12/15/08. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 10.0 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 525 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS45 KMSO 132159 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 259 PM MST SAT DEC 13 2008 .COLD AIR CONTINUES TO SURGE INTO THE NORTHERN ROCKIES FROM THE NORTH AND EAST. ADDITIONAL SNOW ACCUMULATIONS OVERNIGHT WILL BE MAINLY CONFINED TO NORTH CENTRAL IDAHO...WHILE THE WEATHER FOCUS OVER WESTERN MONTANA HAS SHIFTED TO COLD AND WINDY WITH EXTREMELY DANGEROUS WIND CHILLS. IDZ005-141200- /O.CAN.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ /O.EXA.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ NORTHERN CLEARWATER MOUNTAINS- 159 PM PST SAT DEC 13 2008 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SUNDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 4 AM PST SUNDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. AN ADDITIONAL 2 TO 5 INCHES OF SNOW ARE EXPECTED OVERNIGHT AS A SLOW MOVING WEATHER SYSTEM MOVES OVER THE AREA. IN ADDITION...COLD AIR IS TRYING TO SPILL IN FROM THE NORTH AND EAST. THIS COULD CAUSE LOCALLY GUSTY WINDS AND REDUCED VISIBILITIES. LATER TONIGHT...AS THE SNOW SUBSIDES...GUSTY WINDS WILL COMBINE WITH FALLING TEMPERATURES TO PRODUCE DANGEROUS WIND CHILL READINGS OF 10 TO 20 DEGREES BELOW ZERO. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ007-141200- /O.CAN.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ /O.EXA.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ OROFINO/GRANGEVILLE REGION- 159 PM PST SAT DEC 13 2008 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SUNDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 4 AM PST SUNDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. IN ADDITIONAL 2 TO 5 INCHES OF SNOW ARE EXPECTED OVERNIGHT AS A SLOW MOVING WEATHER SYSTEM MOVES OVER THE AREA. IN ADDITION...COLD AIR IS TRYING TO SPILL IN FROM THE NORTH AND EAST. THIS COULD CAUSE LOCALLY GUSTY WINDS AND REDUCED VISIBILITIES...PARTICULARLY ON THE CAMAS PRAIRIE. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ001>004-006-007-043-141200- /O.CAN.KMSO.WW.Y.0017.000000T0000Z-081214T0300Z/ /O.NEW.KMSO.WC.W.0002.081213T2159Z-081215T1200Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 259 PM MST SAT DEC 13 2008 ...WIND CHILL WARNING IN EFFECT UNTIL 5 AM MST MONDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST MONDAY. THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. SNOWFALL HAS DIMINISHED ACROSS THE AREA...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL MAINTAIN STRONG WINDS TONIGHT CONTINUING THROUGH AT LEAST EARLY MONDAY MORNING. WIND CHILL VALUES LOWERING INTO THE 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 50 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS CAN BE EXPECTED DURING THIS TIME FRAME. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ MTZ005-141200- /O.CAN.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ /O.NEW.KMSO.WC.W.0002.081213T2159Z-081215T1200Z/ MISSOULA/BITTERROOT VALLEYS- 259 PM MST SAT DEC 13 2008 ...WIND CHILL WARNING IN EFFECT UNTIL 5 AM MST MONDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST MONDAY. THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. SNOWFALL HAS BECOME LIGHT OR CEASED ACROSS MUCH OF THE AREA THIS AFTERNOON...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL CONTINUE TO PRODUCE STRONG WINDS TONIGHT THROUGH AT LEAST EARLY MONDAY MORNING. AS THE COLD ARCTIC AIRMASS SETTLES IN THE MISSOULA VALLEY...WIND CHILL READINGS THIS EVENING WILL FALL TO BETWEEN 10 AND 20 DEGREES BELOW ZERO WITH WIND CHILL VALUES FALLING AS LOW AS 30 BELOW ZERO BY EARLY SUNDAY MORNING. STRONG WINDS WILL PERSIST SUNDAY RESULTING IN WIND CHILL READINGS OF BETWEEN 20 AND 30 DEGREES BELOW ZERO THROUGHOUT THE DAY ON SUNDAY AND OVERNIGHT INTO EARLY MONDAY MORNING. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ IDZ008-140600- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 159 PM PST SAT DEC 13 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. STORM TOTAL SNOW ACCUMULATION OF 8 TO 10 INCHES IS EXPECTED IN THE MOUNTAINS WITH 4 TO 8 INCHES EXPECTED IN THE VALLEYS BY SUNDAY MORNING. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL PUSH INTO THE REGION CREATING GUSTY WINDS AT TIMES. THIS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT CONDITIONS POSSIBLE...ESPECIALLY DOWN THE WHITE BIRD GRADE. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF SUNDAY MORNING...LOCALLY STRONG NORTH WINDS...VERY COLD AIR AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILLS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ IDZ006-141200- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ SOUTHERN CLEARWATER MOUNTAINS- 159 PM PST SAT DEC 13 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. SNOW...MODERATE TO HEAVY AT TIMES...IS EXPECTED TO REDEVELOP OVER THE AREA WITH ADDITIONAL ACCUMULATIONS OF 8 TO 12 INCHES IN SOUTHERN IDAHO COUNTY AND 4 TO 8 INCHES IN THE NORTH BY MID MORNING SUNDAY. ADDITIONALLY... NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS WILL CREATE LOCAL WHITEOUT CONDITIONS WITH BLOWING AND DRIFTING SNOW. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ IDZ009-010-141200- /O.CON.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 259 PM MST SAT DEC 13 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... A WINTER WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILLS REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. ARCTIC AIR SPILLING IN FROM THE NORTH AND EAST WILL CONTINUE TO PRODUCE STRONG NORTHERLY WINDS OVERNIGHT. THIS WILL CAUSE WIND CHILLS FROM 10 BELOW TO 20 BELOW ZERO...AS WELL AS LOCAL BLOWING SNOW AND REDUCED VISIBILITIES. IN ADDITION...PACIFIC MOISTURE WILL PUSH OVER THE TOP OF THIS COLD AIR MASS PRODUCING LIGHT TO MODERATE SNOW AT TIMES. ADDITIONAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
11 follow-up statements
000 WWUS45 KMSO 132236 WSWMSO URGENT - WINTER WEATHER MESSAGE...RESENT NATIONAL WEATHER SERVICE MISSOULA MT 336 PM MST SAT DEC 13 2008 .COLD AIR CONTINUES TO SURGE INTO THE NORTHERN ROCKIES FROM THE NORTH AND EAST. ADDITIONAL SNOW ACCUMULATIONS OVERNIGHT WILL BE MAINLY CONFINED TO NORTH CENTRAL IDAHO...WHILE THE WEATHER FOCUS OVER WESTERN MONTANA HAS SHIFTED TO COLD AND WINDY WITH EXTREMELY DANGEROUS WIND CHILLS. IDZ005-141200- /O.CAN.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ /O.EXA.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ NORTHERN CLEARWATER MOUNTAINS- 236 PM PST SAT DEC 13 2008 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SUNDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 4 AM PST SUNDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. AN ADDITIONAL 2 TO 5 INCHES OF SNOW ARE EXPECTED OVERNIGHT AS A SLOW MOVING WEATHER SYSTEM MOVES OVER THE AREA. IN ADDITION...COLD AIR IS TRYING TO SPILL IN FROM THE NORTH AND EAST. THIS COULD CAUSE LOCALLY GUSTY WINDS AND REDUCED VISIBILITIES. LATER TONIGHT...AS THE SNOW SUBSIDES...GUSTY WINDS WILL COMBINE WITH FALLING TEMPERATURES TO PRODUCE DANGEROUS WIND CHILL READINGS OF 10 TO 20 DEGREES BELOW ZERO. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ007-141200- /O.CAN.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ /O.EXA.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ OROFINO/GRANGEVILLE REGION- 236 PM PST SAT DEC 13 2008 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SUNDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 4 AM PST SUNDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. IN ADDITIONAL 2 TO 5 INCHES OF SNOW ARE EXPECTED OVERNIGHT AS A SLOW MOVING WEATHER SYSTEM MOVES OVER THE AREA. IN ADDITION...COLD AIR IS TRYING TO SPILL IN FROM THE NORTH AND EAST. THIS COULD CAUSE LOCALLY GUSTY WINDS AND REDUCED VISIBILITIES...PARTICULARLY ON THE CAMAS PRAIRIE. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ001>004-006-007-043-141300- /O.CAN.KMSO.WW.Y.0017.000000T0000Z-081214T0300Z/ /O.NEW.KMSO.WC.W.0002.081213T2236Z-081215T1200Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 336 PM MST SAT DEC 13 2008 ...WIND CHILL WARNING IN EFFECT UNTIL 5 AM MST MONDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST MONDAY. THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. SNOWFALL HAS DIMINISHED ACROSS THE AREA...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL MAINTAIN STRONG WINDS TONIGHT CONTINUING THROUGH AT LEAST EARLY MONDAY MORNING. WIND CHILL VALUES LOWERING INTO THE 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 50 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS CAN BE EXPECTED DURING THIS TIME FRAME. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ MTZ005-141300- /O.CAN.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ /O.NEW.KMSO.WC.W.0002.081213T2236Z-081215T1200Z/ MISSOULA/BITTERROOT VALLEYS- 336 PM MST SAT DEC 13 2008 ...WIND CHILL WARNING IN EFFECT UNTIL 5 AM MST MONDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST MONDAY. THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. SNOWFALL HAS BECOME LIGHT OR CEASED ACROSS MUCH OF THE AREA THIS AFTERNOON...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL CONTINUE TO PRODUCE STRONG WINDS TONIGHT THROUGH AT LEAST EARLY MONDAY MORNING. AS THE COLD ARCTIC AIRMASS SETTLES IN THE MISSOULA VALLEY...WIND CHILL READINGS THIS EVENING WILL FALL TO BETWEEN 10 AND 20 DEGREES BELOW ZERO WITH WIND CHILL VALUES FALLING AS LOW AS 30 BELOW ZERO BY EARLY SUNDAY MORNING. STRONG WINDS WILL PERSIST SUNDAY RESULTING IN WIND CHILL READINGS OF BETWEEN 20 AND 30 DEGREES BELOW ZERO THROUGHOUT THE DAY ON SUNDAY AND OVERNIGHT INTO EARLY MONDAY MORNING. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ IDZ008-140600- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 236 PM PST SAT DEC 13 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. STORM TOTAL SNOW ACCUMULATION OF 8 TO 10 INCHES IS EXPECTED IN THE MOUNTAINS WITH 4 TO 8 INCHES EXPECTED IN THE VALLEYS BY SUNDAY MORNING. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL PUSH INTO THE REGION CREATING GUSTY WINDS AT TIMES. THIS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT CONDITIONS POSSIBLE...ESPECIALLY DOWN THE WHITE BIRD GRADE. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF SUNDAY MORNING...LOCALLY STRONG NORTH WINDS...VERY COLD AIR AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILLS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ IDZ006-141300- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ SOUTHERN CLEARWATER MOUNTAINS- 236 PM PST SAT DEC 13 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. SNOW...MODERATE TO HEAVY AT TIMES...IS EXPECTED TO REDEVELOP OVER THE AREA WITH ADDITIONAL ACCUMULATIONS OF 8 TO 12 INCHES IN SOUTHERN IDAHO COUNTY AND 4 TO 8 INCHES IN THE NORTH BY MID MORNING SUNDAY. ADDITIONALLY... NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS WILL CREATE LOCAL WHITEOUT CONDITIONS WITH BLOWING AND DRIFTING SNOW. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ IDZ009-010-141200- /O.CON.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 336 PM MST SAT DEC 13 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... A WINTER WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILLS REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. ARCTIC AIR SPILLING IN FROM THE NORTH AND EAST WILL CONTINUE TO PRODUCE STRONG NORTHERLY WINDS OVERNIGHT. THIS WILL CAUSE WIND CHILLS FROM 10 BELOW TO 20 BELOW ZERO...AS WELL AS LOCAL BLOWING SNOW AND REDUCED VISIBILITIES. IN ADDITION...PACIFIC MOISTURE WILL PUSH OVER THE TOP OF THIS COLD AIR MASS PRODUCING LIGHT TO MODERATE SNOW AT TIMES. ADDITIONAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 132256 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 356 PM MST SAT DEC 13 2008 .COLD AIR CONTINUES TO SURGE INTO THE NORTHERN ROCKIES FROM THE NORTH AND EAST. ADDITIONAL SNOW ACCUMULATIONS OVERNIGHT WILL BE MAINLY CONFINED TO NORTH CENTRAL IDAHO...WHILE THE WEATHER FOCUS OVER WESTERN MONTANA HAS SHIFTED TO COLD AND WINDY WITH EXTREMELY DANGEROUS WIND CHILLS. IDZ008-141200- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 256 PM PST SAT DEC 13 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. STORM TOTAL SNOW ACCUMULATION OF 8 TO 10 INCHES IS EXPECTED IN THE MOUNTAINS WITH 4 TO 8 INCHES EXPECTED IN THE VALLEYS BY SUNDAY MORNING. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL PUSH INTO THE REGION CREATING GUSTY WINDS AT TIMES. THIS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT CONDITIONS POSSIBLE...ESPECIALLY DOWN THE WHITE BIRD GRADE. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF SUNDAY MORNING...LOCALLY STRONG NORTH WINDS...VERY COLD AIR AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILLS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ IDZ006-141200- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ SOUTHERN CLEARWATER MOUNTAINS- 256 PM PST SAT DEC 13 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. SNOW...MODERATE TO HEAVY AT TIMES...IS EXPECTED TO REDEVELOP OVER THE AREA WITH ADDITIONAL ACCUMULATIONS OF 8 TO 12 INCHES IN SOUTHERN IDAHO COUNTY AND 4 TO 8 INCHES IN THE NORTH BY MID MORNING SUNDAY. ADDITIONALLY... NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS WILL CREATE LOCAL WHITEOUT CONDITIONS WITH BLOWING AND DRIFTING SNOW. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ MTZ001>004-006-007-043-141200- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 356 PM MST SAT DEC 13 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. SNOWFALL HAS DIMINISHED ACROSS THE AREA...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL MAINTAIN STRONG WINDS TONIGHT CONTINUING THROUGH AT LEAST EARLY MONDAY MORNING. WIND CHILL VALUES LOWERING INTO THE 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 50 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS CAN BE EXPECTED DURING THIS TIME FRAME. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ MTZ005-141200- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ MISSOULA/BITTERROOT VALLEYS- 356 PM MST SAT DEC 13 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. SNOWFALL HAS BECOME LIGHT OR CEASED ACROSS MUCH OF THE AREA THIS AFTERNOON...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL CONTINUE TO PRODUCE STRONG WINDS TONIGHT THROUGH AT LEAST EARLY MONDAY MORNING. AS THE COLD ARCTIC AIRMASS SETTLES IN THE MISSOULA VALLEY...WIND CHILL READINGS THIS EVENING WILL FALL TO BETWEEN 10 AND 20 DEGREES BELOW ZERO WITH WIND CHILL VALUES FALLING AS LOW AS 30 BELOW ZERO BY EARLY SUNDAY MORNING. STRONG WINDS WILL PERSIST SUNDAY RESULTING IN WIND CHILL READINGS OF BETWEEN 20 AND 30 DEGREES BELOW ZERO THROUGHOUT THE DAY ON SUNDAY AND OVERNIGHT INTO EARLY MONDAY MORNING. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ IDZ009-010-141200- /O.CON.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 356 PM MST SAT DEC 13 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. ARCTIC AIR SPILLING IN FROM THE NORTH AND EAST WILL CONTINUE TO PRODUCE STRONG NORTHERLY WINDS OVERNIGHT. THIS WILL CAUSE WIND CHILLS FROM 10 BELOW TO 20 BELOW ZERO...AS WELL AS LOCAL BLOWING SNOW AND REDUCED VISIBILITIES. IN ADDITION...PACIFIC MOISTURE WILL PUSH OVER THE TOP OF THIS COLD AIR MASS PRODUCING LIGHT TO MODERATE SNOW AT TIMES. ADDITIONAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ005-141200- /O.CON.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ NORTHERN CLEARWATER MOUNTAINS- 256 PM PST SAT DEC 13 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY. AN ADDITIONAL 2 TO 5 INCHES OF SNOW ARE EXPECTED OVERNIGHT AS A SLOW MOVING WEATHER SYSTEM MOVES OVER THE AREA. IN ADDITION...COLD AIR IS TRYING TO SPILL IN FROM THE NORTH AND EAST. THIS COULD CAUSE LOCALLY GUSTY WINDS AND REDUCED VISIBILITIES. LATER TONIGHT...AS THE SNOW SUBSIDES...GUSTY WINDS WILL COMBINE WITH FALLING TEMPERATURES TO PRODUCE DANGEROUS WIND CHILL READINGS OF 10 TO 20 DEGREES BELOW ZERO. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ007-141200- /O.CON.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ OROFINO/GRANGEVILLE REGION- 256 PM PST SAT DEC 13 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY. IN ADDITIONAL 2 TO 5 INCHES OF SNOW ARE EXPECTED OVERNIGHT AS A SLOW MOVING WEATHER SYSTEM MOVES OVER THE AREA. IN ADDITION...COLD AIR IS TRYING TO SPILL IN FROM THE NORTH AND EAST. THIS COULD CAUSE LOCALLY GUSTY WINDS AND REDUCED VISIBILITIES...PARTICULARLY ON THE CAMAS PRAIRIE. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 141103 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 403 AM MST SUN DEC 14 2008 .COLD AIR CONTINUES TO SURGE INTO THE NORTHERN ROCKIES FROM THE NORTH AND EAST. ADDITIONAL SNOW ACCUMULATIONS WILL BE CONFINED TO NORTH CENTRAL IDAHO...WHILE THE WEATHER FOCUS OVER WESTERN MONTANA HAS SHIFTED TO COLD AND WINDY WITH EXTREMELY DANGEROUS WIND CHILL. IDZ005-007-009-010-141215- /O.CAN.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/ NORTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION- WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 403 AM MST SUN DEC 14 2008 /303 AM PST SUN DEC 14 2008/ ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER WEATHER ADVISORY. ALTHOUGH SOME LIGHT SNOW WILL CONTINUE THROUGH THIS MORNING...ACCUMULATIONS ARE EXPECTED TO HAVE LITTLE IMPACT OVER THE AREA. $$ IDZ008-141800- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 303 AM PST SUN DEC 14 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING. STORM TOTAL SNOW ACCUMULATION OF 8 TO 10 INCHES IS EXPECTED IN THE MOUNTAINS WITH 4 TO 8 INCHES EXPECTED IN THE VALLEYS BY LATE THIS MORNING. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL PUSH INTO THE REGION CREATING GUSTY WINDS AT TIMES. THIS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT CONDITIONS POSSIBLE...ESPECIALLY DOWN THE WHITE BIRD GRADE. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF THIS MORNING...LOCALLY STRONG NORTH WINDS...VERY COLD AIR AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILL. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ IDZ006-141800- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ SOUTHERN CLEARWATER MOUNTAINS- 303 AM PST SUN DEC 14 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING. SNOW...MODERATE TO HEAVY AT TIMES...IS EXPECTED TO REDEVELOP OVER THE AREA WITH ADDITIONAL ACCUMULATIONS OF 8 TO 12 INCHES IN SOUTHERN IDAHO COUNTY AND 4 TO 8 INCHES IN THE NORTH BY MID MORNING. ADDITIONALLY...NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS WILL CREATE LOCAL WHITEOUT CONDITIONS WITH BLOWING AND DRIFTING SNOW. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ MTZ001>004-006-007-043-141915- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 403 AM MST SUN DEC 14 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. SNOWFALL HAS DIMINISHED ACROSS THE AREA...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL MAINTAIN STRONG WINDS THROUGH AT LEAST EARLY MONDAY MORNING. WIND CHILL VALUES LOWERING INTO THE 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 50 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS CAN BE EXPECTED DURING THIS TIME FRAME. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ MTZ005-141915- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ MISSOULA/BITTERROOT VALLEYS- 403 AM MST SUN DEC 14 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. SNOWFALL HAS BECOME LIGHT OR CEASED ACROSS MUCH OF THE AREA...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL CONTINUE TO PRODUCE STRONG WINDS THROUGH AT LEAST EARLY MONDAY MORNING. THE COMBINATION OF WINDS AND EXTREMELY COLD TEMPERATURES WILL RESULT IN WIND CHILL READINGS OF BETWEEN 20 AND 30 DEGREES BELOW ZERO THROUGHOUT THE DAY AND OVERNIGHT INTO EARLY MONDAY MORNING. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$
000 WWUS45 KMSO 141428 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 728 AM MST SUN DEC 14 2008 .COLD AIR CONTINUES TO SURGE INTO THE NORTHERN ROCKIES FROM THE NORTH AND EAST. ADDITIONAL SNOW ACCUMULATIONS WILL BE CONFINED TO NORTH CENTRAL IDAHO...WHILE THE WEATHER FOCUS OVER WESTERN MONTANA HAS SHIFTED TO COLD AND WINDY WITH EXTREMELY DANGEROUS WIND CHILL. IDZ008-141800- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 628 AM PST SUN DEC 14 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING. STORM TOTAL SNOW ACCUMULATION OF 8 TO 10 INCHES IS EXPECTED IN THE MOUNTAINS WITH 4 TO 8 INCHES EXPECTED IN THE VALLEYS BY LATE THIS MORNING. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL PUSH INTO THE REGION CREATING GUSTY WINDS AT TIMES. THIS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT CONDITIONS POSSIBLE...ESPECIALLY DOWN THE WHITE BIRD GRADE. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF THIS MORNING...LOCALLY STRONG NORTH WINDS...VERY COLD AIR AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILL. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING SNOW ARE EXPECTED. STRONG WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ IDZ006-141800- /O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ SOUTHERN CLEARWATER MOUNTAINS- 628 AM PST SUN DEC 14 2008 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING. SNOW...MODERATE TO HEAVY AT TIMES...IS EXPECTED TO REDEVELOP OVER THE AREA WITH ADDITIONAL ACCUMULATIONS OF 8 TO 12 INCHES IN SOUTHERN IDAHO COUNTY AND 4 TO 8 INCHES IN THE NORTH BY MID MORNING. ADDITIONALLY...NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS WILL CREATE LOCAL WHITEOUT CONDITIONS WITH BLOWING AND DRIFTING SNOW. THIS WILL MAKE TRAVEL VERY HAZARDOUS. $$ MTZ001>004-006-007-043-142230- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 728 AM MST SUN DEC 14 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. SNOWFALL HAS DIMINISHED ACROSS THE AREA...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL MAINTAIN STRONG WINDS THROUGH AT LEAST EARLY MONDAY MORNING. WIND CHILL VALUES LOWERING INTO THE 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 50 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS CAN BE EXPECTED DURING THIS TIME FRAME. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ MTZ005-142230- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ MISSOULA/BITTERROOT VALLEYS- 728 AM MST SUN DEC 14 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. SNOWFALL HAS BECOME LIGHT OR CEASED ACROSS MUCH OF THE AREA...BUT THE CONTINUED INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL CONTINUE TO PRODUCE STRONG WINDS THROUGH AT LEAST EARLY MONDAY MORNING. THE COMBINATION OF WINDS AND EXTREMELY COLD TEMPERATURES WILL RESULT IN WIND CHILL READINGS OF BETWEEN 20 AND 30 DEGREES BELOW ZERO THROUGHOUT THE DAY AND OVERNIGHT INTO EARLY MONDAY MORNING. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ IDZ010-141900- /O.NEW.KMSO.WC.Y.0003.081214T1428Z-081214T1900Z/ EASTERN LEMHI COUNTY- 728 AM MST SUN DEC 14 2008 ...WIND CHILL ADVISORY IN EFFECT UNTIL NOON MST TODAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT UNTIL NOON MST TODAY. WIND CHILL TEMPERATURES OF 10 BELOW TO 20 BELOW WILL CONTINUE ACROSS EASTERN LEMHI COUNTY THROUGH MIDDAY...PARTICULARLY FROM NEAR LEMHI AND TENDOY TO SALMON. COLD TEMPERATURES WILL CONTINUE THIS AFTERNOON AND OVERNIGHT BUT THE WINDS ARE EXPECTED TO DECREASE. 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. $$
000 WWUS45 KMSO 141750 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1050 AM MST SUN DEC 14 2008 IDZ008-141900- /O.EXP.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 950 AM PST SUN DEC 14 2008 ...WINTER STORM WARNING WILL EXPIRE AT 10 AM PST THIS MORNING... THE WINTER STORM WARNING WILL EXPIRE AT 10 AM PST THIS MORNING. INTERMITTENT LIGHT SNOW WILL CONTINUE OVER THE AREA TODAY BUT ONLY LIGHT ACCUMULATIONS ARE POSSIBLE. $$ IDZ006-141900- /O.EXP.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/ SOUTHERN CLEARWATER MOUNTAINS- 950 AM PST SUN DEC 14 2008 ...WINTER STORM WARNING WILL EXPIRE AT 10 AM PST THIS MORNING... THE WINTER STORM WARNING WILL EXPIRE AT 10 AM PST THIS MORNING. INTERMITTENT LIGHT SNOW WILL CONTINUE OVER NORTH CENTRAL IDAHO TODAY BUT ONLY LIGHT ACCUMULATIONS ARE POSSIBLE. $$ MTZ001>004-006-007-043-150200- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 1050 AM MST SUN DEC 14 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. WIND CHILL VALUES LOWERING INTO THE 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 50 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS CAN BE EXPECTED INTO EARLY MONDAY. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ MTZ005-150200- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ MISSOULA/BITTERROOT VALLEYS- 1050 AM MST SUN DEC 14 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. THE COMBINATION OF WINDS AND EXTREMELY COLD TEMPERATURES WILL RESULT IN WIND CHILL READINGS OF BETWEEN 20 AND 30 DEGREES BELOW ZERO THROUGHOUT THE DAY AND OVERNIGHT INTO EARLY MONDAY MORNING. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ IDZ010-141900- /O.CON.KMSO.WC.Y.0003.000000T0000Z-081214T1900Z/ EASTERN LEMHI COUNTY- 1050 AM MST SUN DEC 14 2008 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. WIND CHILL TEMPERATURES OF 10 BELOW TO 20 BELOW WILL CONTINUE ACROSS EASTERN LEMHI COUNTY THROUGH MIDDAY...PARTICULARLY FROM NEAR LEMHI AND TENDOY TO SALMON. COLD TEMPERATURES WILL CONTINUE THIS AFTERNOON AND OVERNIGHT BUT THE WINDS ARE EXPECTED TO DECREASE. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. $$
000 WWUS45 KMSO 141844 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1144 AM MST SUN DEC 14 2008 IDZ010-141945- /O.EXP.KMSO.WC.Y.0003.000000T0000Z-081214T1900Z/ EASTERN LEMHI COUNTY- 1144 AM MST SUN DEC 14 2008 ...WIND CHILL ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WIND CHILL ADVISORY WILL EXPIRE AT NOON MST TODAY. THE COLD TEMPERATURES WILL CONTINUE IN LEMHI COUNTY...BUT THE WINDS ARE BEGINNING TO DIMINISH. HOWEVER...THERE COULD STILL BE LOCAL WIND CHILLS IN THE 10 BELOW TO 15 BELOW RANGE. $$ MTZ001>004-006-007-043-150245- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 1144 AM MST SUN DEC 14 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. WIND CHILL VALUES LOWERING INTO THE 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 50 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS CAN BE EXPECTED INTO EARLY MONDAY. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ MTZ005-150245- /O.CON.KMSO.WC.W.0002.000000T0000Z-081215T1200Z/ MISSOULA/BITTERROOT VALLEYS- 1144 AM MST SUN DEC 14 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. THE COMBINATION OF WINDS AND EXTREMELY COLD TEMPERATURES WILL RESULT IN WIND CHILL READINGS OF BETWEEN 20 AND 30 DEGREES BELOW ZERO THROUGHOUT THE DAY AND OVERNIGHT INTO EARLY MONDAY MORNING. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$
000 WWUS45 KMSO 142158 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 258 PM MST SUN DEC 14 2008 MTZ001>007-043-151200- /O.EXT.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- MISSOULA/BITTERROOT VALLEYS-BITTERROOT/SAPPHIRE MOUNTAINS- BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION- 258 PM MST SUN DEC 14 2008 ...WIND CHILL WARNING NOW IN EFFECT UNTIL 5 PM MST MONDAY... THE WIND CHILL WARNING IS NOW IN EFFECT UNTIL 5 PM MST MONDAY. MUCH OF WESTERN MONTANA WILL SEE WIND CHILL VALUES LOWERING INTO THE 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 45 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS INTO EARLY MONDAY. ALTHOUGH SOME VALLEY LOCATIONS SHELTERED FROM EASTERLY WINDS MAY NOT SEE WIND CHILLS THIS LOW SUCH AS THE SOUTHERN BITTERROOT VALLEY AND LIBBY AREA...THE COLD AIR MASS WILL CONTINUE TO PRODUCE VERY LOW TEMPERATURES. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$
000 WWUS45 KMSO 151149 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 449 AM MST MON DEC 15 2008 MTZ001>007-043-160000- /O.CON.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ 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- 449 AM MST MON DEC 15 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. MUCH OF WESTERN MONTANA WILL SEE WIND CHILL VALUES LOWERING INTO THE 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 45 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS THIS MORNING. ALTHOUGH SOME VALLEY LOCATIONS SHELTERED FROM EASTERLY WINDS MAY NOT SEE WIND CHILLS THIS LOW SUCH AS THE SOUTHERN BITTERROOT VALLEY AND LIBBY AREA...THE COLD AIR MASS WILL CONTINUE TO PRODUCE VERY LOW TEMPERATURES. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$
000 WWUS45 KMSO 151713 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1013 AM MST MON DEC 15 2008 MTZ001-151815- /O.CAN.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ KOOTENAI/CABINET REGION- 1013 AM MST MON DEC 15 2008 ...WIND CHILL WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND CHILL WARNING. WINDS HAVE DECREASED ACROSS THE VALLEYS OF NORTHWEST MONTANA. HOWEVER...LOCAL WIND CHILLS 10 TO 20 BELOW ZERO WILL CONTINUE THIS MORNING. $$ MTZ002>007-043-160000- /O.CON.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS- BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 1013 AM MST MON DEC 15 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. MUCH OF WESTERN MONTANA WILL SEE WIND CHILL VALUES 20 BELOW TO 30 BELOW RANGE AND AS LOW AS 45 BELOW ZERO IN SOME OF THE COLDER...WINDIER LOCATIONS THIS MORNING. ALTHOUGH SOME VALLEY LOCATIONS SHELTERED FROM EASTERLY WINDS MAY NOT SEE WIND CHILLS THIS LOW SUCH AS THE SOUTHERN BITTERROOT VALLEY AND ANACONDA AREA...THE COLD AIR MASS WILL CONTINUE TO PRODUCE VERY LOW TEMPERATURES. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$
000 WWUS45 KMSO 152140 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 240 PM MST MON DEC 15 2008 MTZ006-160545- /O.CAN.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ /O.NEW.KMSO.WS.A.0020.081218T0000Z-081219T0000Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 240 PM MST MON DEC 15 2008 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON... ...WIND CHILL WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON. THE WIND CHILL WARNING HAS BEEN CANCELLED. ALTHOUGH COLD TEMPERATURES WILL CONTINUE INTO THIS EVENING...WINDS HAVE DECREASED ACROSS THE AREA. AS SUCH...ONLY LOCAL AREAS MAY CONTINUE TO EXPERIENCE WIND CHILLS TO 20 BELOW ZERO INTO EARLY THIS EVENING. A VIGOROUS WEATHER SYSTEM IS EXPECTED TO DEVELOP AND DIRECT SIGNIFICANT MOISTURE OVER THE REGION LATE WEDNESDAY AND THURSDAY. SNOW ACCUMULATIONS OF 3 TO 6 INCHES IN THE VALLEYS AND UP TO ONE FOOT IN THE MOUNTAINS IS POSSIBLE DURING THIS PERIOD. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ MTZ002>004-160545- /O.CAN.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ /O.NEW.KMSO.WS.A.0020.081218T0000Z-081219T0000Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- LOWER CLARK FORK REGION- 240 PM MST MON DEC 15 2008 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON... ...WIND CHILL WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON. THE WIND CHILL WARNING HAS BEEN CANCELLED. ALTHOUGH COLD TEMPERATURES WILL CONTINUE INTO THIS EVENING...WINDS HAVE DECREASED ACROSS THE AREA. AS SUCH...ONLY LOCAL AREAS MAY CONTINUE TO EXPERIENCE WIND CHILLS TO 20 BELOW ZERO INTO EARLY THIS EVENING. A VIGOROUS WEATHER SYSTEM IS EXPECTED TO DEVELOP AND DIRECT SIGNIFICANT MOISTURE OVER THE REGION LATE WEDNESDAY AND THURSDAY. SNOW ACCUMULATIONS OF 6 TO 8 INCHES IN THE VALLEYS AND UP TO ONE FOOT IN THE MOUNTAINS IS POSSIBLE DURING THESE PERIODS. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ MTZ043-160545- /O.NEW.KMSO.WS.A.0020.081218T0000Z-081219T0000Z/ /O.CON.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ POTOMAC/SEELEY LAKE REGION- 240 PM MST MON DEC 15 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON. A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. EASTERLY WINDS WILL CONTINUE TO SUPPORT WIND CHILLS VALUES IN THE 20 TO 30 BELOW ZERO RANGE INTO EARLY THIS EVENING...BUT MAINLY ALONG THE BLACKFOOT. WINDS SHOULD DIMINISH OVERNIGHT. A VIGOROUS WEATHER SYSTEM IS EXPECTED TO DEVELOP AND DIRECT SIGNIFICANT MOISTURE OVER THE REGION LATE WEDNESDAY AND THURSDAY. SNOW ACCUMULATIONS OF 6 TO 8 INCHES IN THE VALLEYS AND UP TO ONE FOOT IN THE MOUNTAINS IS POSSIBLE DURING THESE PERIODS. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ MTZ005-007-160000- /O.CON.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ MISSOULA/BITTERROOT VALLEYS-BUTTE/BLACKFOOT REGION- 240 PM MST MON DEC 15 2008 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. EAST WINDS 10 TO 20 MPH WILL CONTINUE INTO THE MISSOULA VALLEY AND FROM OVANDO THROUGH HELMVILLE THROUGH EARLY THIS EVENING...SUPPORTING WIND CHILLS 20 TO 30 BELOW ZERO. RELATIVELY LIGHTER NORTH TO NORTHEAST WINDS WILL OCCUR IN THE BITTERROOT VALLEY AND BUTTE REGION. WINDS SHOULD DIMINISH OVERNIGHT WITH BITTER COLD TEMPERATURES EXPECTED. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. $$ MTZ001-160545- /O.NEW.KMSO.WS.A.0020.081218T0000Z-081219T0000Z/ KOOTENAI/CABINET REGION- 240 PM MST MON DEC 15 2008 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON. A VIGOROUS WEATHER SYSTEM IS EXPECTED TO DEVELOP AND DIRECT SIGNIFICANT MOISTURE OVER THE REGION LATE WEDNESDAY AND THURSDAY. SNOW ACCUMULATIONS OF 6 TO 8 INCHES IN THE VALLEYS AND UP TO ONE FOOT IN THE MOUNTAINS IS POSSIBLE DURING THESE PERIODS. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ IDZ005-006-160545- /O.NEW.KMSO.WS.A.0020.081218T0000Z-081219T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 140 PM PST MON DEC 15 2008 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON. A VIGOROUS WEATHER SYSTEM IS EXPECTED TO DEVELOP AND DIRECT SIGNIFICANT MOISTURE OVER THE REGION LATE WEDNESDAY AND THURSDAY. SNOW ACCUMULATIONS OF 6 TO 8 INCHES IN THE VALLEYS AND UP TO ONE FOOT IN THE MOUNTAINS IS POSSIBLE DURING THESE PERIODS. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$
000 WWUS45 KMSO 152345 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 445 PM MST MON DEC 15 2008 MTZ043-161200- /O.EXP.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ /O.CON.KMSO.WS.A.0020.081218T0000Z-081219T0000Z/ POTOMAC/SEELEY LAKE REGION- 445 PM MST MON DEC 15 2008 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON... ...WIND CHILL WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... THE WIND CHILL WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON. A WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON. EASTERLY WINDS HAVE SUBSIDED BELOW 10 MPH IN MOST AREAS THIS AFTERNOON. THEREFORE WIND CHILL READINGS OF 20 TO 30 BELOW ZERO ARE NO LONGER EXPECTED. A VIGOROUS WEATHER SYSTEM IS EXPECTED TO DEVELOP AND DIRECT SIGNIFICANT MOISTURE OVER THE REGION LATE WEDNESDAY AND THURSDAY. SNOW ACCUMULATIONS OF 6 TO 8 INCHES IN THE VALLEYS AND UP TO ONE FOOT IN THE MOUNTAINS IS POSSIBLE DURING THESE PERIODS. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW. THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ MTZ005-007-160045- /O.EXP.KMSO.WC.W.0002.000000T0000Z-081216T0000Z/ MISSOULA/BITTERROOT VALLEYS-BUTTE/BLACKFOOT REGION- 445 PM MST MON DEC 15 2008 ...WIND CHILL WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... THE WIND CHILL WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON. EAST TO NORTHEAST WINDS WILL CONTINUE TO DIMINISH BELOW 10 MPH APPROACHING THE EVENING HOURS. LOCAL NORTHEAST WINDS ABOVE 10 MPH MAY BRIEFLY CONTINUE IN THE HELMVILLE...AVON AND GARRISON AREAS UNTIL 6 PM PRODUCING WIND CHILLS IN THE 20 TO 25 BELOW ZERO RANGE. HOWEVER...WINDS SHOULD DIMINISH BELOW 10 MPH IN ALL AREAS BY 7 PM. $$ MTZ006-161200- /O.CON.KMSO.WS.A.0020.081218T0000Z-081219T0000Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 445 PM MST MON DEC 15 2008 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON... A WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON. ALTHOUGH COLD TEMPERATURES WILL CONTINUE INTO THIS EVENING... WINDS HAVE DECREASED ACROSS THE AREA. AS SUCH...ONLY LOCAL AREAS MAY CONTINUE TO EXPERIENCE WIND CHILLS TO 20 BELOW ZERO INTO EARLY THIS EVENING. A VIGOROUS WEATHER SYSTEM IS EXPECTED TO DEVELOP AND DIRECT SIGNIFICANT MOISTURE OVER THE REGION LATE WEDNESDAY AND THURSDAY. SNOW ACCUMULATIONS OF 3 TO 6 INCHES IN THE VALLEYS AND UP TO ONE FOOT IN THE MOUNTAINS IS POSSIBLE DURING THIS PERIOD. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ MTZ001>004-161200- /O.CON.KMSO.WS.A.0020.081218T0000Z-081219T0000Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- 445 PM MST MON DEC 15 2008 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON... A WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON. ALTHOUGH COLD TEMPERATURES WILL CONTINUE INTO THIS EVENING... WINDS HAVE DECREASED ACROSS THE AREA. AS SUCH...ONLY LOCAL AREAS MAY CONTINUE TO EXPERIENCE WIND CHILLS TO 20 BELOW ZERO INTO EARLY THIS EVENING. A VIGOROUS WEATHER SYSTEM IS EXPECTED TO DEVELOP AND DIRECT SIGNIFICANT MOISTURE OVER THE REGION LATE WEDNESDAY AND THURSDAY. SNOW ACCUMULATIONS OF 6 TO 8 INCHES IN THE VALLEYS AND UP TO ONE FOOT IN THE MOUNTAINS IS POSSIBLE DURING THESE PERIODS. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS AND STRONG WINDS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$ IDZ005-006-161200- /O.CON.KMSO.WS.A.0020.081218T0000Z-081219T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 345 PM PST MON DEC 15 2008 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON... A WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON. A VIGOROUS WEATHER SYSTEM IS EXPECTED TO DEVELOP AND DIRECT SIGNIFICANT MOISTURE OVER THE REGION LATE WEDNESDAY AND THURSDAY. SNOW ACCUMULATIONS OF 6 TO 8 INCHES IN THE VALLEYS AND UP TO ONE FOOT IN THE MOUNTAINS IS POSSIBLE DURING THESE PERIODS. A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. $$
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 13, 10:36 AM MST, 4 hours 23 minutes earlier.
Area forecast discussion, Dec 13, 10:36 AM MST, 4 hours 23 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
1036 AM MST SAT DEC 13 2008
.DISCUSSION...THE ARCTIC AIR MASS INVADED WESTERN MONTANA A FEW
HOURS EARLIER THAN FORECASTED. DUE TO THIS THESE AREAS HAVE
TRANSITIONED FROM SNOW ACCUMULATION AND WIDESPREAD BLOWING SNOW
CONCERN TO LOCAL BLOWING SNOW AND RAPIDLY LOWERING WIND CHILL
TEMPERATURES. THEREFORE...HAVE DOWNGRADED THE WINTER STORM AND
BLIZZARD WARNINGS TO WINTER WEATHER ADVISORIES HIGHLIGHTING THESE
ISSUES. IN ALL LIKELIHOOD THE CONCERN WILL BE RESTRICTED TO WIND
CHILLS ALONE LATER TONIGHT THROUGH POSSIBLY MONDAY...AND WILL
ADJUST THE HIGHLIGHTS FURTHER THIS AFTERNOON.
FOR IDAHO ZONES...UPPER PACIFIC TROUGH CONTINUES TO ROTATE OVER
EASTERN WASHINGTON/OREGON WITH MOISTURE MOVING INTO NORTH CENTRAL
IDAHO. IN ADDITION THE ARCTIC AIR IS BEGINNING TO INVADE THAT AREA
FROM THE NORTH AND EAST...INCREASING CONVERGENCE AND THEREFORE
LIFT. HAVE THUS LEFT WINTER STORM WARNINGS IN PLACE OVER NORTH
CENTRAL IDAHO. THE ARCTIC AIR WILL HAVE MORE TROUBLE GETTING INTO
LEMHI COUNTY...SO AN ADVISORY WILL COVER THAT AREA.
&&
.AVIATION...MODERATE TO STRONG SURFACE WINDS WITH BLOWING SNOW
WILL CONTINUE AT AIR FIELDS THROUGH OUT NORTHWEST AND WEST CENTRAL
MONTANA INTO THIS EVENING...INCLUDING KGPI...KMSO...AND KBTM.
THESE AREAS COULD SEE INFREQUENT VISIBILITIES DOWN TO A QUARTER
MILE. THE WINDS WILL CONTINUE THROUGH THE NIGHT AND SUNDAY...BUT
BLOWING SNOW WILL BECOME LESS OF A PROBLEM WITH TIME.
&&
.PREV DISCUSSION... /ISSUED 414 AM MST SAT DEC 13 2008/
DISCUSSION...
TODAY THROUGH NEXT SATURDAY NIGHT...THE FIRST IN A PAIR OF COLD
NORTHERLY STORM SYSTEMS IS CURRENTLY BEARING DOWN ON THE REGION.
POWERFUL MID AND UPPER LEVEL LIFT...COMBINED WITH A DEEP COLD
AIRMASS EAST OF THE CONTINENTAL DIVIDE...WILL MAINTAIN SNOWFALL
AND STRONG WINDS DURING TODAY. THE MOST SIGNIFICANT SNOW WILL
SHIFT FROM NORTHWEST MONTANA...TO WESTERN MONTANA AND NORTH
CENTRAL IDAHO BY TONIGHT. STRONG SURFACE WINDS WILL SPREAD FROM
NORTH TO SOUTH DURING THIS TIME AS WELL...WITH OCCASIONAL BLIZZARD
CONDITIONS OVER AREA MOUNTAIN PASSES AND WITHIN THE FLATHEAD
VALLEY...PARTICULARLY NEAR KALISPELL...COLUMBIA FALLS...BADROCK
CANYON...AND MARIAS PASS. SIGNIFICANT SNOW ACCUMULATIONS...COMBINED
WITH STRONG SURFACE WINDS...WILL CREATE HAZARDOUS TRAVEL
CONDITIONS THROUGHOUT THE REGION. COLD AIR WILL CONTINUE TO BE
DRAWN WEST OF THE CONTINENTAL DIVIDE DURING THE NEXT SEVERAL
DAYS...REINFORCED BY THE SECOND NORTHERLY STORM SYSTEM EXPECTED TO
MOVE INTO THE GREAT BASIN BY MONDAY NIGHT. EXTREMELY COLD
TEMPERATURES ARE FORECAST FOR SUNDAY NIGHT ONWARD...WITH LOW
TEMPERATURES AS COLD AS 40 BELOW ZERO AND SOME LOCATIONS UNABLE TO
WARM PAST 10 BELOW ZERO DURING THE DAY. EXPOSURE TO THESE COLD
TEMPERATURES CAN BECOME LIFE THREATENING TO HUMANS AND ANIMALS IN
A VERY SHORT AMOUNT OF TIME. TEMPERATURES SHOW SIGNS OF WARMING
SOMEWHAT BY NEXT WEEKEND...AS A RIDGE OF HIGH PRESSURE OFF THE
PACIFIC NORTHWEST COAST NUDGES INLAND. HOWEVER...TEMPERATURES WILL
REMAIN BELOW THE SEASONAL AVERAGE THROUGHOUT THE FORECAST PERIOD.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY UNTIL 8 PM MST THIS EVENING FOR
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION.
WINTER WEATHER ADVISORY UNTIL 5 AM MST SUNDAY FOR
MISSOULA/BITTERROOT VALLEYS.
WINTER WEATHER ADVISORY UNTIL 8 PM MST THIS EVENING FOR
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION.
WINTER WEATHER ADVISORY UNTIL 8 PM MST THIS EVENING FOR
FLATHEAD/MISSION VALLEYS-WEST GLACIER REGION.
ID...WINTER WEATHER ADVISORY UNTIL 5 AM MST SUNDAY FOR EASTERN LEMHI
COUNTY-WESTERN LEMHI COUNTY.
WINTER STORM WARNING UNTIL 10 AM PST SUNDAY FOR LOWER HELLS
CANYON/SALMON RIVER REGION-OROFINO/GRANGEVILLE REGION.
WINTER STORM WARNING UNTIL 10 AM PST SUNDAY FOR SOUTHERN
CLEARWATER MOUNTAINS.
WINTER STORM WARNING UNTIL 10 AM PST SUNDAY FOR NORTHERN
CLEARWATER MOUNTAINS.
&&
UPDATE...WHITMORE
PREVIOUS DISCUSSION...VIA/ZUMPFE
AVIATION...WHITMOREIn the hours before
Local storm report, Dec 13, 11:52 AM MST, 3 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
1152 AM MST SAT DEC 13 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 AM BLIZZARD POLSON 47.69N 114.16W
12/13/2008 LAKE MT DEPT OF HIGHWAYS
HIGHWAY 35 BETWEEN POLSON AND YELLOWBAY CLOSED DUE TO
TREES AND POWERLINES DOWN FROM HIGH WINDS.
0900 AM HEAVY SNOW 4 ENE ALBERTON 47.03N 114.39W
12/13/2008 M10.5 INCH MISSOULA MT TRAINED SPOTTER
SEVERAL SPOTTERS IN WEST 9-MILE AREA REPORTED 10 TO 10.5
INCHES NEW SNOW OVERNIGHT.
0900 AM HEAVY SNOW 9 NNW NOXON 48.12N 115.85W
12/13/2008 M12.0 INCH SANDERS MT TRAINED SPOTTER
1000 AM SNOW 10 WSW HAPPYS INN 48.03N 115.34W
12/13/2008 M6.0 INCH LINCOLN MT TRAINED SPOTTER
1000 AM SNOW 2 W LIBBY 48.39N 115.60W
12/13/2008 M8.0 INCH LINCOLN MT AMATEUR RADIO
1000 AM HEAVY SNOW 5 N COLUMBIA FALLS 48.44N 114.18W
12/13/2008 M7.0 INCH FLATHEAD MT TRAINED SPOTTER
RECEIVED 7 INCHES SNOW AND HAD NO POWER DUE TO TREES AND
POWERLINES DOWN ON HIGHWAY 35.
1000 AM HEAVY SNOW 4 NW NOXON 48.05N 115.83W
12/13/2008 M14.0 INCH SANDERS MT TRAINED SPOTTER
&&
LAKENearby
Wind Chill Warnings in Montana, 2008Every wind chill warning in 2008
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.