Alert archive / Montana / Winter Storm Warnings in 2012
Winter Storm Warning 13, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Dec 23, 2012, 4:21 PM PST for Clearwater County, Idaho; Mineral County, Missoula County, Sanders County, Montana. It took effect at Dec 23, 2012, 10:00 PM PST. It was in force for 24 hr. 4 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 23, 2012, 4:21 PM PST (00:21 UTC)
- In effect from
- Dec 23, 2012, 10:00 PM PST
- Expired
- Dec 24, 2012, 10:00 PM PST
- In force
- 24 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Mineral County, MT, Missoula County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 72 km from the middle of the area, began a volume at 00:22 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 24, 7:40 AM PST | SNOW 4 | 2 S Condon, MT | 4 INCHES MEASURED THIS MORNING. WAS SNOWING MODERATELY EARLY THIS MORNING BUT HAS SINCE DECREASED. SNOW DURATION 8 HOURS |
| Dec 24, 2:35 PM PST | SNOW 4 | Tarkio, MT | MT DOT REPORTED 4 INCHES OF SNOW FROM LOOKOUT PASS TO TARKIO AND ABOUT 2 INCHES FROM TARKIO TO ALBERTON. SNOW DURATION 12 HOURS |
| Dec 24, 5:00 PM PST | SNOW 3.2 | 2 Nw Heron, MT | |
| Dec 24, 5:14 PM PST | HEAVY SNOW 9 | Weippe, ID | TOTAL SNOWFALL FROM 4 AM TILL 514 PM PST. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 0.4 hours before the alert went out and 127 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
- 1002 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 194 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
796 WWUS45 KMSO 240021 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 521 PM MST SUN DEC 23 2012 IDZ005-241200- /O.UPG.KMSO.WW.Y.0067.121224T0600Z-121225T0600Z/ /O.NEW.KMSO.WS.W.0013.121224T0600Z-121225T0600Z/ NORTHERN CLEARWATER MOUNTAINS- 421 PM PST SUN DEC 23 2012 ...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 PM PST MONDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 PM PST MONDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND BECOMING HEAVY AT TIMES OVERNIGHT INTO MONDAY MORNING. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS AND LIMITING VISIBILITIES. * SNOW ACCUMULATIONS: 6 TO 12 INCHES ABOVE 3000 FEET. 3 TO 6 INCHES BELOW 3000 FEET. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS AND LIMIT VISIBILITIES AT TIMES. && $$ MTZ004-241200- /O.NEW.KMSO.WS.W.0013.121224T0600Z-121225T0600Z/ /O.CON.KMSO.WW.Y.0067.121224T0600Z-121225T0600Z/ LOWER CLARK FORK REGION- 521 PM MST SUN DEC 23 2012 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY FOR I-90 LOOKOUT PASS TO HAUGAN... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY ELSEWHERE IN THE LOWER CLARK FORK REGION... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW FOR I-90 LOOKOUT PASS TO HAUGAN...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY. A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY ELSEWHERE IN THE LOWER CLARK FORK REGION. * IMPACTS/TIMING: LOOKOUT PASS TO HAUGAN...MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND BECOME HEAVY AT TIMES OVERNIGHT INTO MONDAY OVER LOOKOUT PASS. IN ADDITION...WINDS WILL BECOME GUSTY AND ERRATIC CAUSING BLOWING AND DRIFTING OF SNOW REDUCING VISIBILITIES. ELSEWHERE...LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND INTENSIFY OVERNIGHT INTO MONDAY MORNING. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: 8 TO 12 INCHES OVER LOOKOUT PASS TO HAUGAN. ELSEWHERE...3 TO 6 INCHES. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ IDZ006-MTZ006-241200- /O.CON.KMSO.WW.Y.0067.121224T0600Z-121225T0600Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 521 PM MST SUN DEC 23 2012 /421 PM PST SUN DEC 23 2012/ ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM MST /10 PM PST/ THIS EVENING TO 11 PM MST /10 PM PST/ MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM MST /10 PM PST/ THIS EVENING TO 11 PM MST /10 PM PST/ MONDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND INTENSIFY OVERNIGHT INTO MONDAY MORNING. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: 6 TO 8 INCHES IN THE HIGHER TERRAIN AND OVER LOLO AND LOST TRAIL PASSES. 3 TO 5 INCHES IN THE VALLEY LOCATIONS. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...HIGHWAY 93 SULA TO LOST TRAIL PASS... LOLO PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ002-003-241200- /O.CON.KMSO.WW.Y.0067.121224T0600Z-121225T0600Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 521 PM MST SUN DEC 23 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND INTENSIFY OVERNIGHT INTO MONDAY MORNING. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. IN ADDITION... GUSTY NORTHEAST WINDS WILL DEVELOP ALONG THE HIGHWAY 2 CORRIDOR FROM MARIAS PASS TO KALISPELL MONDAY MORNING... CAUSING AREAS OF BLOWING SNOW AND LOW VISIBILITY. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR THE VALLEYS INCLUDING THE FLATHEAD AND MISSION VALLEY. 4 TO 6 INCHES IN THE HIGHER TERRAIN AND OVER MARIAS PASS. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR ICE ACCUMULATIONS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ005-007-043-241200- /O.CON.KMSO.WW.Y.0067.121224T0600Z-121225T0600Z/ MISSOULA/BITTERROOT VALLEYS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 521 PM MST SUN DEC 23 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND INTENSIFY OVERNIGHT INTO MONDAY MORNING. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. IN ADDITION... GUSTY EAST WINDS ARE EXPECTED TO DEVELOP ALONG THE HIGHWAY 200 AND 12 CORRIDORS MONDAY AFTERNOON... CAUSING AREAS OF BLOWING SNOW AND LOW VISIBILITY. * SNOW ACCUMULATIONS: 2 TO 5 INCHES. PLACEMENT OF THE HEAVIER AMOUNTS ARE STILL SOMEWHAT UNCERTAIN BUT CURRENTLY FAVOR THE MISSOULA VALLEY AND THE HIGHWAY 200 AND 12 CORRIDORS. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA... BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON... MACDONALD PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ IDZ007-008-241200- /O.CON.KMSO.WW.Y.0067.121224T0600Z-121225T0600Z/ OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 421 PM PST SUN DEC 23 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 PM PST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 PM PST MONDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND INTENSIFY MONDAY MORNING. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: 2 TO 4 INCHES IN THE VALLEYS. 3 TO 6 INCHES OVER GREER GRADE AND WHITEBIRD GRADE. * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE...HIGHWAY 95 SLATE CREEK TO RIGGINS... WHITE BIRD GRADE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ001-241200- /O.CON.KMSO.WW.Y.0067.121224T0600Z-121225T0600Z/ KOOTENAI/CABINET REGION- 521 PM MST SUN DEC 23 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST MONDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND INTENSIFY OVERNIGHT INTO MONDAY MORNING. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: ALONG AND SOUTH OF THE HIGHWAY 2 CORRIDOR EXPECT 4 TO 6 INCHES. NORTH OF THE HIGHWAY 2 CORRIDOR... INCLUDING LIBBY AND EUREKA...1 TO 3 INCHES. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
3 follow-up statements
487 WWUS45 KMSO 241146 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 446 AM MST MON DEC 24 2012 MTZ004-242200- /O.CON.KMSO.WS.W.0013.000000T0000Z-121225T0600Z/ /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ LOWER CLARK FORK REGION- 446 AM MST MON DEC 24 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING FOR I-90 LOOKOUT PASS TO HAUGAN... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER STORM WARNING FOR I-90 LOOKOUT PASS TO HAUGAN REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: LOOKOUT PASS TO HAUGAN...MODERATE SNOW WILL CONTINUE THIS MORNING BECOMING HEAVY DURING THE DAY TODAY OVER LOOKOUT PASS. IN ADDITION...WINDS WILL CONTINUE TO BE GUSTY AND ERRATIC CAUSING BLOWING AND DRIFTING OF SNOW REDUCING VISIBILITIES. ELSEWHERE...LIGHT TO MODERATE SNOW WILL CONTINUE THIS MORNING. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: 5 TO 8 INCHES OVER LOOKOUT PASS TO HAUGAN. ELSEWHERE...2 TO 5 INCHES. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ IDZ005-242200- /O.CON.KMSO.WS.W.0013.000000T0000Z-121225T0600Z/ NORTHERN CLEARWATER MOUNTAINS- 346 AM PST MON DEC 24 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING. * IMPACTS/TIMING: MODERATE SNOW WILL CONTINUE TO REDEVELOP THIS MORNING AND BECOMING HEAVY AT TIMES AROUND SUNRISE. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS AND LIMITING VISIBILITIES. * SNOW ACCUMULATIONS: 6 TO 9 INCHES ABOVE 3000 FEET. 3 TO 6 INCHES BELOW 3000 FEET. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS AND LIMIT VISIBILITIES AT TIMES. && $$ IDZ006-MTZ006-242200- /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 446 AM MST MON DEC 24 2012 /346 AM PST MON DEC 24 2012/ ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM PST/ THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM PST/ THIS EVENING. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW HAS REDEVELOPED THIS MORNING AND WILL INTENSIFY AROUND SUNRISE. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: 5 TO 8 INCHES IN THE HIGHER TERRAIN AND OVER LOLO AND LOST TRAIL PASSES. 2 TO 5 INCHES IN THE VALLEY LOCATIONS. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...HIGHWAY 93 SULA TO LOST TRAIL PASS... LOLO PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ002-003-242200- /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 446 AM MST MON DEC 24 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL REDEVELOP THIS MORNING AND INTENSIFY AROUND SUNRISE. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. IN ADDITION...GUSTY NORTHEAST WINDS WILL EXIST ALONG THE HIGHWAY 2 CORRIDOR FROM MARIAS PASS TO KALISPELL...CAUSING AREAS OF BLOWING SNOW AND LOW VISIBILITY. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR THE VALLEYS INCLUDING THE FLATHEAD AND MISSION VALLEY. 4 TO 6 INCHES IN THE HIGHER TERRAIN AND OVER MARIAS PASS. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR ICE ACCUMULATIONS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ005-007-043-242200- /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ MISSOULA/BITTERROOT VALLEYS-BUTTE/BLACKFOOT REGION- POTOMAC/SEELEY LAKE REGION- 446 AM MST MON DEC 24 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL REDEVELOP THIS MORNING AND INTENSIFY AROUND SUNRISE. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. IN ADDITION...GUSTY EAST WINDS ARE EXPECTED TO DEVELOP ALONG THE HIGHWAY 200 AND 12 CORRIDORS THIS AFTERNOON...CAUSING AREAS OF BLOWING SNOW AND LOW VISIBILITY. * SNOW ACCUMULATIONS: 2 TO 5 INCHES. PLACEMENT OF THE HEAVIER AMOUNTS ARE STILL SOMEWHAT UNCERTAIN BUT CURRENTLY FAVOR THE MISSOULA VALLEY AND THE HIGHWAY 200 AND 12 CORRIDORS. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA... BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON... MACDONALD PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ IDZ007-008-242200- /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 346 AM PST MON DEC 24 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW HAS REDEVELOPED THIS MORNING AND MAY INTENSIFY AROUND SUNRISE. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: 1 TO 3 INCHES IN THE VALLEYS. 2 TO 5 INCHES OVER GREER GRADE AND WHITEBIRD GRADE. * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE...HIGHWAY 95 SLATE CREEK TO RIGGINS... WHITE BIRD GRADE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ001-242200- /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ KOOTENAI/CABINET REGION- 446 AM MST MON DEC 24 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL REDEVELOP THIS MORNING AND MAY INTENSIFY AROUND SUNRISE. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: ALONG AND SOUTH OF THE HIGHWAY 2 CORRIDOR EXPECT 2 TO 5 INCHES. NORTH OF THE HIGHWAY 2 CORRIDOR... INCLUDING LIBBY AND EUREKA...1 TO 3 INCHES. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
881 WWUS45 KMSO 242126 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 226 PM MST MON DEC 24 2012 MTZ004-250600- /O.CAN.KMSO.WS.W.0013.000000T0000Z-121225T0600Z/ /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ LOWER CLARK FORK REGION- 226 PM MST MON DEC 24 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: LIGHT TO OCCASIONALLY MODERATE SNOW WILL CONTINUE THROUGH THIS EVENING. STEADY ACCUMULATIONS WILL CREATE SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 3 INCHES THIS EVENING. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR ICE ACCUMULATIONS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ001-005-242230- /O.CAN.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ KOOTENAI/CABINET REGION-MISSOULA/BITTERROOT VALLEYS- 226 PM MST MON DEC 24 2012 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER WEATHER ADVISORY. OCCASIONAL LIGHT SNOW SHOWERS WILL CONTINUE THROUGH EARLY THIS EVENING. BUT ACCUMULATIONS WILL BE LIGHT AND YIELD LITTLE IF ANY IMPACT TO THE POPULATION. $$ IDZ005-250600- /O.CON.KMSO.WS.W.0013.000000T0000Z-121225T0600Z/ NORTHERN CLEARWATER MOUNTAINS- 126 PM PST MON DEC 24 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING. * IMPACTS/TIMING: LIGHT TO OCCASIONALLY MODERATE SNOW WILL CONTINUE THROUGH THIS EVENING. COOLING TEMPERATURES AFTER SUNSET WILL ALSO RESULT IN POTENTIALLY SLUSHY AND ICY ROADWAYS. * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 3 INCHES ABOVE 3000 FEET. TRACE UP TO 2 INCHES BELOW 3000 FEET. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 WEIPPE TO HEADQUARTERS...PIERCE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS AND LIMIT VISIBILITIES AT TIMES. && $$ IDZ006-MTZ006-250600- /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 226 PM MST MON DEC 24 2012 /126 PM PST MON DEC 24 2012/ ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM PST/ THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM PST/ THIS EVENING. * IMPACTS/TIMING: LIGHT TO OCCASIONALLY MODERATE SNOW SHOWERS WILL CONTINUE THROUGH THIS EVENING RESULTING IN SLICK/SNOW COVERED ROADS. * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 3 INCHES OVER THE HIGHER TERRAIN AND ACROSS LOLO AND LOST TRAIL PASSES. A TRACE UP TO 2 INCHES ARE POSSIBLE IN VALLEY LOCATIONS. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...HIGHWAY 93 SULA TO LOST TRAIL PASS... LOLO PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ002-003-250600- /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 226 PM MST MON DEC 24 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: BREEZY WINDS AND LIGHT SNOW WILL CONTINUE INTO THIS EVENING. THE COMBINATION OF WIND AND SNOW WILL CREATE SLICK/SNOW COVERED ROADS AND OCCASIONAL REDUCTIONS IN VISIBILITY. IN ADDITION THE GUSTY NORTHEAST WINDS WILL PRODUCE POTENTIALLY DANGEROUS WIND CHILL READINGS BELOW ZERO ALONG THE HIGHWAY 2 CORRIDOR FROM MARIAS PASS TO KALISPELL. * SNOW ACCUMULATIONS: AROUND 1 ADDITIONAL INCH OF ACCUMULATION IS POSSIBLE. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR ICE ACCUMULATIONS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ007-043-250600- /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION- 226 PM MST MON DEC 24 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH THIS EVENING. * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 3 INCHES OF ARE POSSIBLE. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ IDZ007-008-250600- /O.CON.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 126 PM PST MON DEC 24 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING. * IMPACTS/TIMING: LIGHT TO MODERATE WILL CONTINUE THROUGH THIS EVENING RESULTING IN PERIODS OF SLICK AND ICY ROADWAYS. * SNOW ACCUMULATIONS: A TRACE UP TO 2 INCHES OVER THE VALLEYS. AN ADDITIONAL 1 TO 3 INCHES OVER GREER GRADE AND WHITEBIRD GRADE. * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE...HIGHWAY 95 SLATE CREEK TO RIGGINS... WHITE BIRD GRADE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
820 WWUS45 KMSO 250554 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1054 PM MST MON DEC 24 2012 IDZ005-250700- /O.EXP.KMSO.WS.W.0013.000000T0000Z-121225T0600Z/ NORTHERN CLEARWATER MOUNTAINS- 954 PM PST MON DEC 24 2012 ...WINTER STORM WARNING WILL EXPIRE AT 10 PM PST THIS EVENING... THE WINTER STORM WARNING WILL EXPIRE AT 10 PM PST THIS EVENING. SOME LIGHT SNOW WILL CONTINUE TO EXIST THROUGHOUT THE OVERNIGHT PERIOD...HOWEVER THE MAIN WEATHER IMPACT HAS ENDED. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE $$ IDZ006-MTZ004-006-250700- /O.EXP.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ SOUTHERN CLEARWATER MOUNTAINS-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS- 1054 PM MST MON DEC 24 2012 /954 PM PST MON DEC 24 2012/ ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST /10 PM PST/ THIS EVENING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST /10 PM PST/ THIS EVENING. SOME LIGHT SNOW MAY CONTINUE TO EXIST THROUGHOUT THE OVERNIGHT PERIOD...HOWEVER THE MAIN WEATHER IMPACT HAS ENDED. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ002-003-250700- /O.EXP.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 1054 PM MST MON DEC 24 2012 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST THIS EVENING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST THIS EVENING. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON $$ MTZ007-043-250700- /O.EXP.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION- 1054 PM MST MON DEC 24 2012 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST THIS EVENING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST THIS EVENING. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH $$ IDZ007-008-250700- /O.EXP.KMSO.WW.Y.0067.000000T0000Z-121225T0600Z/ OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 954 PM PST MON DEC 24 2012 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING. * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE...HIGHWAY 95 SLATE CREEK TO RIGGINS... WHITE BIRD GRADE $$
Nearby
Winter Storm Warnings in Montana, 2012Winter Storm Warnings in Idaho, 2012Every winter storm warning in 2012
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.