Alert archive / Montana / Winter Weather Advisories in 2011
Winter Weather Advisory 21, NWS Missoula, MT
NWS Missoula, MT issued this winter weather advisory at Feb 21, 2011, 4:31 AM MST for 9 counties in Montana; Clearwater County, Idaho County, Idaho. It took effect at Feb 21, 2011, 11:00 PM MST. It was in force for 34 hr.
The area
The counties it named.
The facts
- Issued
- Feb 21, 2011, 4:31 AM MST (11:31 UTC)
- In effect from
- Feb 21, 2011, 11:00 PM MST
- Expired
- Feb 23, 2011, 9:00 AM MST
- In force
- 34 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID, 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
The radar
The Missoula radar (KMSX), 38 km from the middle of the area, began a volume at 11:35 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 11.5 hours before the alert went out and 159 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
- 1791 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- -1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
986 WWUS45 KMSO 211131 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 431 AM MST MON FEB 21 2011 MTZ043-212200- /O.CAN.KMSO.WW.Y.0020.000000T0000Z-110221T1800Z/ /O.NEW.KMSO.WW.Y.0021.110222T1200Z-110223T0600Z/ POTOMAC/SEELEY LAKE REGION- 431 AM MST MON FEB 21 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 11 PM MST TUESDAY... ...WINTER WEATHER ADVISORY IS CANCELLED THAT WAS IN EFFECT EARLY THIS MORNING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW WHICH IS IN EFFECT FROM 5 AM TO 11 PM MST TUESDAY. THE WINTER WEATHER ADVISORY FOR SNOW LATE SUNDAY NIGHT THROUGH EARLY THIS MORNING HAS BEEN CANCELLED. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP EARLY TUESDAY MORNING...THEN BECOME MODERATE AT TIMES THROUGH THE DAY. THIS MAY CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 5 TO 9 INCHES ALONG HIGHWAY 83 FROM CLEARWATER JUNCTION THROUGH SEELEY LAKE TO CONDON. 3 TO 6 INCHES ALONG HIGHWAY 200 FROM BONNER TO CLEARWATER JUNCTION. 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. && $$ MTZ007-211245- /O.CAN.KMSO.WW.Y.0020.000000T0000Z-110221T1800Z/ BUTTE/BLACKFOOT REGION- 431 AM MST MON FEB 21 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER WEATHER ADVISORY. $$ MTZ001>004-212200- /O.NEW.KMSO.WW.Y.0021.110222T0600Z-110223T0000Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- 431 AM MST MON FEB 21 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP THIS EVENING...THEN BECOME MODERATE AT TIMES OVERNIGHT AND TUESDAY. DIFFICULT DRIVING CONDITIONS MAY RESULT DUE TO SLICK ROADWAYS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...8 TO 12 INCHES OVER THE PASSES AND HIGHER TERRAIN. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH...BAD ROCK CANYON...ESSEX... HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE... FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON... 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 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. && $$ MTZ006-212200- /O.NEW.KMSO.WW.Y.0021.110222T1200Z-110223T0600Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 431 AM MST MON FEB 21 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 11 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW WHICH IS IN EFFECT FROM 5 AM TO 11 PM MST TUESDAY. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP EARLY TUESDAY MORNING...THEN BECOME MODERATE AT TIMES THROUGH THE DAY. THIS MAY CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 5 TO 9 INCHES OVER THE PASSES AND HIGHER TERRAIN. 2 TO 5 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ IDZ007-212200- /O.NEW.KMSO.WW.Y.0021.110222T1200Z-110223T1200Z/ OROFINO/GRANGEVILLE REGION- 331 AM PST MON FEB 21 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TUESDAY TO 4 AM PST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW WHICH IS IN EFFECT FROM 4 AM TUESDAY TO 4 AM PST WEDNESDAY. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP EARLY TUESDAY MORNING...THEN BECOME MODERATE AT TIMES THROUGH THE DAY AND TUESDAY NIGHT. THIS MAY CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 7 INCHES ALONG HIGHWAY 12 FROM OROFINO TO KOOSKIA. AROUND 5 INCHES IN GRANGEVILLE AND ON THE CAMAS PRAIRIE. UP TO 8 INCHES ON GREER 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. && $$ IDZ005-006-212200- /O.NEW.KMSO.WS.A.0005.110222T0600Z-110223T1200Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 331 AM PST MON FEB 21 2011 ...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH LATE TUESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM THIS EVENING THROUGH LATE TUESDAY NIGHT. * IMPACTS/TIMING: SNOW WILL DEVELOP LATE THIS EVENING...AND THERE IS POTENTIAL FOR IT TO BE HEAVY AT TIMES THROUGH TUESDAY NIGHT MAINLY OVER CLEARWATER AND NORTHERN IDAHO COUNTIES. SIGNIFICANT ACCUMULATIONS ARE POSSIBLE...AND THIS ALONG WITH REDUCED VISIBILITIES MAY CAUSE HAZARDOUS TRAVEL CONDITIONS. * POTENTIAL SNOW ACCUMULATIONS: 9 TO 15 INCHES ACROSS CLEARWATER COUNTY AND ALONG HIGHWAY 12 FROM LOWELL TO LOLO PASS. 4 TO 8 INCHES ACROSS SOUTHERN IDAHO COUNTY INCLUDING DIXIE AND ELK CITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW THAT MAY SIGNIFICANTLY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
10 follow-up statements
052 WWUS45 KMSO 212136 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 236 PM MST MON FEB 21 2011 IDZ005-006-220545- /O.UPG.KMSO.WS.A.0005.110222T0600Z-110223T1200Z/ /O.NEW.KMSO.WS.W.0008.110222T0600Z-110223T1200Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 136 PM PST MON FEB 21 2011 ...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 4 AM PST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 4 AM PST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * IMPACTS/TIMING: SNOW WILL DEVELOP LATE THIS EVENING...AND THERE IS POTENTIAL FOR IT TO BE HEAVY AT TIMES THROUGH TUESDAY NIGHT MAINLY OVER CLEARWATER AND NORTHERN IDAHO COUNTIES. SIGNIFICANT ACCUMULATIONS ARE POSSIBLE...AND THIS ALONG WITH REDUCED VISIBILITIES MAY CAUSE HAZARDOUS TRAVEL CONDITIONS. * POTENTIAL SNOW ACCUMULATIONS: 9 TO 15 INCHES ACROSS CLEARWATER COUNTY AND ALONG HIGHWAY 12 FROM LOWELL TO LOLO PASS. 4 TO 8 INCHES ACROSS SOUTHERN IDAHO COUNTY INCLUDING DIXIE AND ELK CITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001>004-220545- /O.CON.KMSO.WW.Y.0021.110222T0600Z-110223T0000Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- 236 PM MST MON FEB 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP THIS EVENING...THEN BECOME MODERATE AT TIMES OVERNIGHT AND TUESDAY. DIFFICULT DRIVING CONDITIONS MAY RESULT DUE TO SLICK ROADWAYS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...8 TO 12 INCHES OVER THE PASSES AND HIGHER TERRAIN. * LOCATIONS IMPACTED INCLUDE...KALISPELL...LIBBY ...EUREKA ...WHITEFISH...ESSEX... SWAN LAKE...MARIAS PASS...POLEBRIDGE... FLATHEAD LAKE...POLSON... EVARO HILL... THOMPSON FALLS... PLAINS I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ006-043-220545- /O.CON.KMSO.WW.Y.0021.110222T1200Z-110223T0600Z/ BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION- 236 PM MST MON FEB 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 PM MST TUESDAY. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP EARLY TUESDAY MORNING...THEN BECOME MODERATE AT TIMES THROUGH THE DAY. THIS MAY CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 5 TO 9 INCHES OVER THE PASSES AND HIGHER TERRAIN. 2 TO 5 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO 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. && $$ IDZ007-220545- /O.CON.KMSO.WW.Y.0021.110222T1200Z-110223T1200Z/ OROFINO/GRANGEVILLE REGION- 136 PM PST MON FEB 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TUESDAY TO 4 AM PST WEDNESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TUESDAY TO 4 AM PST WEDNESDAY. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP EARLY TUESDAY MORNING...THEN BECOME MODERATE AT TIMES THROUGH THE DAY AND TUESDAY NIGHT. THIS MAY CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 7 INCHES ALONG HIGHWAY 12 FROM OROFINO TO KOOSKIA. AROUND 5 INCHES IN GRANGEVILLE AND ON THE CAMAS PRAIRIE. UP TO 8 INCHES ON GREER GRADE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
637 WWUS45 KMSO 220504 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1004 PM MST MON FEB 21 2011 IDZ005-006-221200- /O.CON.KMSO.WS.W.0008.110222T0600Z-110223T1200Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 904 PM PST MON FEB 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: SNOW WILL DEVELOP LATE THIS EVENING...AND THERE IS POTENTIAL FOR IT TO BE HEAVY AT TIMES THROUGH TUESDAY NIGHT MAINLY OVER CLEARWATER AND NORTHERN IDAHO COUNTIES. SIGNIFICANT ACCUMULATIONS ARE POSSIBLE...AND THIS ALONG WITH REDUCED VISIBILITIES MAY CAUSE HAZARDOUS TRAVEL CONDITIONS. * POTENTIAL SNOW ACCUMULATIONS: 9 TO 15 INCHES ACROSS CLEARWATER COUNTY AND ALONG HIGHWAY 12 FROM LOWELL TO LOLO PASS. 4 TO 8 INCHES ACROSS SOUTHERN IDAHO COUNTY INCLUDING DIXIE AND ELK CITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001>004-221200- /O.CON.KMSO.WW.Y.0021.110222T0600Z-110223T0000Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- 1004 PM MST MON FEB 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP THIS EVENING...THEN BECOME MODERATE AT TIMES OVERNIGHT AND TUESDAY. DIFFICULT DRIVING CONDITIONS MAY RESULT DUE TO SLICK ROADWAYS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...8 TO 12 INCHES OVER THE PASSES AND HIGHER TERRAIN. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH...BAD ROCK CANYON...ESSEX... HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE... FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON... EVARO HILL... HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MTZ006-043-221200- /O.CON.KMSO.WW.Y.0021.110222T1200Z-110223T0600Z/ BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION- 1004 PM MST MON FEB 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 PM MST TUESDAY. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP EARLY TUESDAY MORNING...THEN BECOME MODERATE AT TIMES THROUGH THE DAY. THIS MAY CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 5 TO 9 INCHES OVER THE PASSES AND HIGHER TERRAIN. 2 TO 5 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO 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. && $$ IDZ007-221200- /O.CON.KMSO.WW.Y.0021.110222T1200Z-110223T1200Z/ OROFINO/GRANGEVILLE REGION- 904 PM PST MON FEB 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TUESDAY TO 4 AM PST WEDNESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TUESDAY TO 4 AM PST WEDNESDAY. * IMPACTS/TIMING: LIGHT SNOW WILL DEVELOP EARLY TUESDAY MORNING...THEN BECOME MODERATE AT TIMES THROUGH THE DAY AND TUESDAY NIGHT. THIS MAY CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 7 INCHES ALONG HIGHWAY 12 FROM OROFINO TO KOOSKIA. AROUND 5 INCHES IN GRANGEVILLE AND ON THE CAMAS PRAIRIE. UP TO 8 INCHES ON GREER GRADE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
038 WWUS45 KMSO 221112 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 412 AM MST TUE FEB 22 2011 IDZ005-006-222200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 312 AM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: SNOW WILL BE HEAVY AT TIMES THROUGH TONIGHT OVER CLEARWATER AND NORTHERN IDAHO COUNTIES. SIGNIFICANT ACCUMULATIONS ARE POSSIBLE...AND THIS ALONG WITH REDUCED VISIBILITIES WILL CAUSE HAZARDOUS TRAVEL CONDITIONS. * POTENTIAL SNOW ACCUMULATIONS: 9 TO 15 INCHES ACROSS CLEARWATER COUNTY AND ALONG HIGHWAY 12 FROM LOWELL TO LOLO PASS. 4 TO 8 INCHES ACROSS SOUTHERN IDAHO COUNTY INCLUDING DIXIE AND ELK CITY. && $$ MTZ001>004-222200- /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T0000Z/ KOOTENAI/CABINET REGION-WEST GLACIER REGION- FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION- 412 AM MST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW TODAY WILL CREATE DIFFICULT DRIVING CONDITIONS AT TIMES DUE TO SLICK ROADWAYS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...8 TO 12 INCHES OVER THE PASSES AND HIGHER TERRAIN. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH...BAD ROCK CANYON...ESSEX... HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE... FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON... EVARO HILL... HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN && $$ MTZ006-043-222200- /O.CON.KMSO.WW.Y.0021.110222T1200Z-110223T0600Z/ BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION- 412 AM MST TUE FEB 22 2011 ...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 SPREAD ACROSS THE AREA TODAY. THIS WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 7 TO 11 INCHES OVER THE PASSES AND HIGHER TERRAIN. 2 TO 6 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH && $$ IDZ007-222200- /O.CON.KMSO.WW.Y.0021.110222T1200Z-110223T1200Z/ OROFINO/GRANGEVILLE REGION- 312 AM PST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL CONTINUE TODAY AND OVERNIGHT. THE CAMAS PRAIRIE AND GREER GRADE WILL ALSO SEE BLOWING SNOW AT TIMES. THIS WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 7 INCHES ALONG HIGHWAY 12 FROM OROFINO TO KOOSKIA. AROUND 5 INCHES IN GRANGEVILLE AND ON THE CAMAS PRAIRIE. UP TO 9 INCHES ON GREER GRADE. && $$
039 WWUS45 KMSO 221230 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 530 AM MST TUE FEB 22 2011 MTZ004-222200- /O.UPG.KMSO.WW.Y.0021.000000T0000Z-110223T0000Z/ /O.EXB.KMSO.WS.W.0008.000000T0000Z-110223T0600Z/ LOWER CLARK FORK REGION- 530 AM MST TUE FEB 22 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 11 PM MST THIS EVENING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW WHICH IS IN EFFECT UNTIL 11 PM MST THIS EVENING. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW TODAY WILL CREATE HAZARDOUS DRIVING CONDITIONS PARTICULARLY OVER LOOKOUT PASS. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...10 TO 16 INCHES OVER THE LOOKOUT PASS AND HIGHER TERRAIN. * 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 OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-222200- /O.UPG.KMSO.WW.Y.0021.000000T0000Z-110223T0000Z/ /O.EXB.KMSO.WS.W.0008.000000T0000Z-110223T0000Z/ KOOTENAI/CABINET REGION- 530 AM MST TUE FEB 22 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW WHICH IS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: PERSISTENT MODERATE TO HEAVY WILL CONTINUE THIS MORNING. IT IS EXPECTED TO BECOME MORE SHOWERY THIS AFTERNOON...BUT MAY STILL BE INTENSE AT TIMES. THIS WILL CAUSE HAZARDOUS DRIVING CONDITIONS WITH REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 6 TO 10 INCHES. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ005-006-222200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 430 AM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: SNOW WILL BE HEAVY AT TIMES THROUGH TONIGHT OVER CLEARWATER AND NORTHERN IDAHO COUNTIES. SIGNIFICANT ACCUMULATIONS ARE POSSIBLE...AND THIS ALONG WITH REDUCED VISIBILITIES WILL CAUSE HAZARDOUS TRAVEL CONDITIONS. * POTENTIAL SNOW ACCUMULATIONS: 9 TO 15 INCHES ACROSS CLEARWATER COUNTY AND ALONG HIGHWAY 12 FROM LOWELL TO LOLO PASS. 4 TO 8 INCHES ACROSS SOUTHERN IDAHO COUNTY INCLUDING DIXIE AND ELK CITY. && $$ MTZ002-003-222200- /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T0000Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 530 AM MST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW TODAY WILL CREATE DIFFICULT DRIVING CONDITIONS AT TIMES DUE TO SLICK ROADWAYS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...8 TO 12 INCHES OVER THE PASSES AND HIGHER TERRAIN. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON. $$ MTZ006-043-222200- /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T0600Z/ BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION- 530 AM MST TUE FEB 22 2011 ...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 SPREAD ACROSS THE AREA TODAY. THIS WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 7 TO 11 INCHES OVER THE PASSES AND HIGHER TERRAIN. 2 TO 6 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH. $$ IDZ007-222200- /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T1200Z/ OROFINO/GRANGEVILLE REGION- 430 AM PST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL CONTINUE TODAY AND OVERNIGHT. THE CAMAS PRAIRIE AND GREER GRADE WILL ALSO SEE BLOWING SNOW AT TIMES. THIS WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 7 INCHES ALONG HIGHWAY 12 FROM OROFINO TO KOOSKIA. AROUND 5 INCHES IN GRANGEVILLE AND ON THE CAMAS PRAIRIE. UP TO 9 INCHES ON GREER GRADE. && $$
342 WWUS45 KMSO 221433 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 733 AM MST TUE FEB 22 2011 IDZ007-222245- /O.UPG.KMSO.WW.Y.0021.000000T0000Z-110223T1200Z/ /O.EXA.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ OROFINO/GRANGEVILLE REGION- 633 AM PST TUE FEB 22 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 4 AM PST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 4 AM PST WEDNESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW AND BLOWING SNOW REDUCING VISIBILITY TO LESS THAN ONE QUARTER MILE WILL BE PRESENT THROUGH EARLY WEDNESDAY...PARTICULARLY ON THE CAMAS PRAIRIE NEAR GRANGEVILLE AND AT ELEVATIONS ABOVE 1500 FEET. HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED. * SNOW ACCUMULATIONS: 6 TO 9 INCHES WITH SUBSTANTIAL DRIFTING ON THE CAMAS PRAIRIE. 4 TO 7 INCHES ELSEWHERE ABOVE 1500 FEET. 3 TO 6 INCHES ALONG HIGHWAY 12 BETWEEN OROFINO AND KOOSKIA. 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. && $$ IDZ008-222245- /O.EXA.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 633 AM PST TUE FEB 22 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 4 AM PST WEDNESDAY FOR WHITE BIRD GRADE... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW FOR WHITE BIRD GRADE... WHICH IS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW AND BLOWING SNOW REDUCING VISIBILITY TO LESS THAN ONE QUARTER MILE WILL BE PRESENT THROUGH EARLY WEDNESDAY. HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED. * POTENTIAL SNOW ACCUMULATIONS: 6 TO 9 INCHES WITH SUBSTANTIAL DRIFTING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ005-006-222245- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 633 AM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: SNOW WILL BE HEAVY AT TIMES THROUGH TONIGHT OVER CLEARWATER AND NORTHERN IDAHO COUNTIES. SIGNIFICANT ACCUMULATIONS ARE POSSIBLE...AND THIS ALONG WITH REDUCED VISIBILITIES WILL CAUSE HAZARDOUS TRAVEL CONDITIONS. * POTENTIAL SNOW ACCUMULATIONS: 9 TO 15 INCHES ACROSS CLEARWATER COUNTY AND ALONG HIGHWAY 12 FROM LOWELL TO LOLO PASS. 4 TO 8 INCHES ACROSS SOUTHERN IDAHO COUNTY INCLUDING DIXIE AND ELK CITY. && $$ MTZ004-222245- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T0600Z/ LOWER CLARK FORK REGION- 733 AM MST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW TODAY WILL CREATE HAZARDOUS DRIVING CONDITIONS PARTICULARLY OVER LOOKOUT PASS. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...10 TO 16 INCHES OVER THE LOOKOUT PASS AND HIGHER TERRAIN. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-222245- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T0000Z/ KOOTENAI/CABINET REGION- 733 AM MST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: PERSISTENT MODERATE TO HEAVY WILL CONTINUE THIS MORNING. IT IS EXPECTED TO BECOME MORE SHOWERY THIS AFTERNOON...BUT MAY STILL BE INTENSE AT TIMES. THIS WILL CAUSE HAZARDOUS DRIVING CONDITIONS WITH REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 6 TO 10 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 STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ002-003-222245- /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T0000Z/ WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 733 AM MST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW TODAY WILL CREATE DIFFICULT DRIVING CONDITIONS AT TIMES DUE TO SLICK ROADWAYS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...8 TO 12 INCHES OVER THE PASSES AND HIGHER TERRAIN. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...FLATHEAD LAKE...FLATHEAD VALLEY...MISSION VALLEY...POLSON $$ MTZ006-043-222245- /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T0600Z/ BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION- 733 AM MST TUE FEB 22 2011 ...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 SPREAD ACROSS THE AREA TODAY. THIS WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 7 TO 11 INCHES OVER THE PASSES AND HIGHER TERRAIN. 2 TO 6 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH $$
711 WWUS45 KMSO 221721 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1021 AM MST TUE FEB 22 2011 MTZ002-230130- /O.UPG.KMSO.WW.Y.0021.000000T0000Z-110223T0000Z/ /O.EXB.KMSO.WS.W.0008.000000T0000Z-110224T1200Z/ WEST GLACIER REGION- 1021 AM MST TUE FEB 22 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 5 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW WILL CONTINUE INTO MID DAY...WITH A BRIEF BREAK DURING THE AFTERNOON. THE SNOW WILL RESUME TONIGHT ACCOMPANIED BY STRONG EAST WINDS. BLOWING AND DRIFTING SNOW CAN BE EXPECTED...CREATING DANGEROUSLY COLD WIND CHILL...WHITEOUTS...AND HAZARDOUS DRIVING CONDITIONS THROUGH EARLY THURSDAY. * SNOW ACCUMULATIONS: ADDITIONAL 6 TO 9 INCHES FOR LOW ELEVATIONS AND 8 TO 12 INCHES FOR MARIAS PASS. * WIND: WIND SHIFTING TO EAST WIND 15 TO 25 MPH GUSTING TO 35 MPH TONIGHT THROUGH EARLY THURSDAY. * WIND CHILL: 15 TO 25 BELOW ZERO WEDNESDAY EVENING THROUGH THURSDAY MORNING. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ005-006-230130- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 921 AM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: SNOW WILL BE HEAVY AT TIMES THROUGH TONIGHT OVER CLEARWATER AND NORTHERN IDAHO COUNTIES. SIGNIFICANT ACCUMULATIONS ARE POSSIBLE...AND THIS ALONG WITH REDUCED VISIBILITIES WILL CAUSE HAZARDOUS TRAVEL CONDITIONS. * POTENTIAL SNOW ACCUMULATIONS: 9 TO 15 INCHES ACROSS CLEARWATER COUNTY AND ALONG HIGHWAY 12 FROM LOWELL TO LOLO PASS. 4 TO 8 INCHES ACROSS SOUTHERN IDAHO COUNTY INCLUDING DIXIE AND ELK CITY. && $$ MTZ004-230130- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T0600Z/ LOWER CLARK FORK REGION- 1021 AM MST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW TODAY WILL CREATE HAZARDOUS DRIVING CONDITIONS PARTICULARLY OVER LOOKOUT PASS. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...10 TO 16 INCHES OVER THE LOOKOUT PASS AND HIGHER TERRAIN. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-230000- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T0000Z/ KOOTENAI/CABINET REGION- 1021 AM MST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: PERSISTENT MODERATE TO HEAVY WILL CONTINUE THIS MORNING. IT IS EXPECTED TO BECOME MORE SHOWERY THIS AFTERNOON...BUT MAY STILL BE INTENSE AT TIMES. THIS WILL CAUSE HAZARDOUS DRIVING CONDITIONS WITH REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 6 TO 10 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 STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ007-230130- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ OROFINO/GRANGEVILLE REGION- 921 AM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW AND BLOWING SNOW REDUCING VISIBILITY TO LESS THAN ONE QUARTER MILE WILL BE PRESENT THROUGH EARLY WEDNESDAY...PARTICULARLY ON THE CAMAS PRAIRIE NEAR GRANGEVILLE AND AT ELEVATIONS ABOVE 1500 FEET. HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED. * SNOW ACCUMULATIONS: 6 TO 9 INCHES WITH SUBSTANTIAL DRIFTING ON THE CAMAS PRAIRIE. 4 TO 7 INCHES ELSEWHERE ABOVE 1500 FEET. 3 TO 6 INCHES ALONG HIGHWAY 12 BETWEEN OROFINO AND KOOSKIA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ008-230130- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 921 AM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY FOR WHITE BIRD GRADE... A WINTER STORM WARNING FOR WHITE BIRD GRADE REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW AND BLOWING SNOW REDUCING VISIBILITY TO LESS THAN ONE QUARTER MILE WILL BE PRESENT THROUGH EARLY WEDNESDAY. HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED. * POTENTIAL SNOW ACCUMULATIONS: 6 TO 9 INCHES WITH SUBSTANTIAL DRIFTING. 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. && $$ MTZ003-230000- /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T0000Z/ FLATHEAD/MISSION VALLEYS- 1021 AM MST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW TODAY WILL CREATE DIFFICULT DRIVING CONDITIONS AT TIMES DUE TO SLICK ROADWAYS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 4 TO 8 INCHES IN THE VALLEYS...8 TO 12 INCHES OVER THE PASSES AND HIGHER TERRAIN. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON $$ MTZ006-043-230130- /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T0600Z/ BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION- 1021 AM MST TUE FEB 22 2011 ...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 SPREAD ACROSS THE AREA TODAY. THIS WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 7 TO 11 INCHES OVER THE PASSES AND HIGHER TERRAIN. 2 TO 6 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH $$
476 WWUS45 KMSO 222204 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 304 PM MST TUE FEB 22 2011 MTZ003-231200- /O.CAN.KMSO.WW.Y.0021.000000T0000Z-110223T0000Z/ /O.EXB.KMSO.WS.W.0008.110223T1200Z-110224T1800Z/ FLATHEAD/MISSION VALLEYS- 304 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY. THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. * IMPACTS/TIMING: SNOW WILL DEVELOP AND NORTHEAST WINDS INTENSIFY ACROSS THE NORTHERN FLATHEAD VALLEY WEDNESDAY MORNING. BLOWING AND DRIFTING SNOW WILL REDUCE VISIBILITY AND CREATE HAZARDOUS DRIVING CONDITIONS THROUGH WEDNESDAY EVENING. CONTINUED GUSTY NORTHEAST WIND AND ARCTIC AIR WILL CAUSE DANGEROUSLY COLD WIND CHILL. * SNOW ACCUMULATIONS: 4 TO 8 INCHES. * VISIBILITY: LESS ONE QUARTER MILE AT TIMES. * WIND: NORTHEAST WIND 10 TO 20 MPH BECOMING 20 TO 30 MPH DURING WEDNESDAY EVENING WITH GUSTS TO 40 MPH. * WIND CHILL: 10 TO 20 BELOW ZERO OVERNIGHT WEDNESDAY. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ043-231200- /O.UPG.KMSO.WW.Y.0021.000000T0000Z-110223T0600Z/ /O.EXB.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ POTOMAC/SEELEY LAKE REGION- 304 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: TONIGHT MODERATE TO HEAVY SNOW SHOWERS THIS EVENING AND INTO WEDNESDAY MORNING WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. WEDNESDAY AND THURSDAY: MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH OVERNIGHT WEDNESDAY...WITH GUSTY EAST WINDS PRESENT ALONG HIGHWAY 200 THROUGH THURSDAY MORNING. BLOWING AND DRIFTING SNOW WILL REDUCE VISIBILITY AND CREATE HAZARDOUS TRAVEL CONDITIONS. DANGEROUSLY COLD WIND CHILL WILL DEVELOP BY THURSDAY MORNING. * SNOW ACCUMULATIONS: 6 TO 10 INCHES BY WEDNESDAY MORNING. AN ADDITIONAL 6 TO 10 INCHES BY THURSDAY MORNING. * WIND: EAST WIND 15 TO 25 MPH GUSTING TO 35 MPH ALONG HIGHWAY 200 CORRIDOR OVERNIGHT WEDNESDAY. * WIND CHILL: 15 TO 25 BELOW ZERO OVERNIGHT WEDNESDAY. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 200 BONNER TO GREENOUGH... HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH 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. && $$ MTZ004-231200- /O.EXT.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ LOWER CLARK FORK REGION- 304 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM MST THURSDAY... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 11 AM MST THURSDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW TODAY WILL CREATE HAZARDOUS DRIVING CONDITIONS PARTICULARLY THIS AFTERNOON THROUGH TONIGHT. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES BY HEAVY SNOW SHOWERS. PERIODIC SNOW WILL CONTINUE THROUGH OVERNIGHT WEDNESDAY. * SNOW ACCUMULATIONS: OVERNIGHT...3 TO 6 INCHES IN THE VALLEYS...6 TO 10 INCHES OVER LOOKOUT PASS AND HIGH TERRAIN. WEDNESDAY THROUGH WEDNESDAY NIGHT...ADDITIONAL 6 TO 8 INCHES IN THE VALLEYS...6 TO 10 INCHES OVER LOOKOUT PASS AND HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-231200- /O.EXT.KMSO.WS.W.0008.000000T0000Z-110224T1200Z/ KOOTENAI/CABINET REGION- 304 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 AM MST THURSDAY... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 5 AM MST THURSDAY. * IMPACTS/TIMING: OCCASIONALLY HEAVY SNOW SHOWERS WILL BE PRESENT THROUGH TONIGHT. THIS WILL CAUSE HAZARDOUS DRIVING CONDITIONS WITH REDUCED VISIBILITIES. SNOW WILL CONTINUE TO BE PRESENT THROUGHOUT WEDNESDAY...WITH NORTHEAST WINDS INTENSIFYING THROUGH WEDNESDAY NIGHT. BLOWING AND DRIFTING OF SNOW DURING THIS TIME WILL FURTHER CONTRIBUTE TO HAZARDOUS TRAVEL CONDITIONS. * SNOW ACCUMULATIONS: ADDITIONAL 2 TO 5 INCHES TONIGHT WITH HIGHER AMOUNTS AT LOCATIONS NEAR THE CANADIAN BORDER. ADDITIONAL 6 TO 10 INCHES WEDNESDAY THROUGH WEDNESDAY NIGHT. * 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 STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ005-006-231200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 204 PM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: SNOW WILL BE HEAVY AT TIMES THROUGH TONIGHT OVER CLEARWATER AND NORTHERN IDAHO COUNTIES. ADDITIONAL ACCUMULATIONS ARE EXPECTED...AND THIS ALONG WITH REDUCED VISIBILITIES WILL CAUSE HAZARDOUS TRAVEL CONDITIONS. * ADDITIONAL SNOW ACCUMULATIONS: 6 TO 10 INCHES ACROSS CLEARWATER COUNTY AND ALONG HIGHWAY 12 FROM LOWELL TO LOLO PASS. 3 TO 6 INCHES ACROSS SOUTHERN IDAHO COUNTY INCLUDING DIXIE AND ELK CITY. && $$ IDZ007-231200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ OROFINO/GRANGEVILLE REGION- 204 PM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW AND BLOWING SNOW REDUCING VISIBILITY TO LESS THAN ONE QUARTER MILE WILL BE PRESENT THROUGH EARLY WEDNESDAY...PARTICULARLY ON THE CAMAS PRAIRIE NEAR GRANGEVILLE AND AT ELEVATIONS ABOVE 1500 FEET. HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED. * SNOW ACCUMULATIONS: ADDITIONAL 4 TO 8 INCHES WITH SUBSTANTIAL DRIFTING ON THE CAMAS PRAIRIE. 3 TO 6 INCHES ELSEWHERE ABOVE 1500 FEET. 2 TO 5 INCHES ALONG HIGHWAY 12 BETWEEN OROFINO AND KOOSKIA. * WIND: WEST WINDS GUSTING TO 40 MPH NEAR SNOW SHOWERS. 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. && $$ MTZ002-231200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1200Z/ WEST GLACIER REGION- 304 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * IMPACTS/TIMING: HEAVY SNOW WILL RESUME THIS EVENING ACCOMPANIED BY STRONG EAST WINDS. BLOWING AND DRIFTING SNOW WILL CREATE DANGEROUSLY COLD WIND CHILL...WHITEOUTS...AND HAZARDOUS DRIVING CONDITIONS THROUGH EARLY THURSDAY. * SNOW ACCUMULATIONS: ADDITIONAL 5 TO 10 INCHES WITH SUBSTANTIAL DRIFTING. * WIND: BECOMING EAST 15 TO 25 MPH GUSTING TO 35 MPH TONIGHT THROUGH EARLY THURSDAY. * WIND CHILL: 15 TO 25 BELOW ZERO WEDNESDAY EVENING THROUGH THURSDAY MORNING. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ008-231200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 204 PM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY FOR WHITE BIRD GRADE... A WINTER STORM WARNING FOR WHITE BIRD GRADE REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW AND BLOWING SNOW REDUCING VISIBILITY TO LESS THAN ONE QUARTER MILE WILL BE PRESENT THROUGH EARLY WEDNESDAY. HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED. * SNOW ACCUMULATIONS: ADDI TONAL 4 TO 8 INCHES WITH SUBSTANTIAL DRIFTING. * WIND: WEST WINDS GUSTING TO 40 MPH NEAR SNOW SHOWERS. 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. && $$ MTZ005-231200- /O.EXB.KMSO.WW.Y.0021.110223T0000Z-110223T1800Z/ MISSOULA/BITTERROOT VALLEYS- 304 PM MST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW SHOWER WILL BRING QUICK BURSTS OF SNOW AND REDUCED VISIBILITY THROUGH THIS EVENING WITH SNOW ACCUMULATIONS AND DEGRADED ROAD CONDITIONS OVERNIGHT AND THROUGH WEDNESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 5 INCHES WITH LOCALLY 5 TO 8 INCHES UNDER PERSISTENT SHOWERS. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ MTZ006-231200- /O.EXT.KMSO.WW.Y.0021.000000T0000Z-110223T1800Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 304 PM MST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST WEDNESDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 11 AM MST WEDNESDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW SHOWERS WILL CONTINUE ACROSS INTO THE OVERNIGHT. THIS WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 6 TO 10 INCHES OVER THE PASSES AND HIGHER TERRAIN. 2 TO 6 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$
579 WWUS45 KMSO 222359 CCA WSWMSO URGENT - WINTER WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE MISSOULA MT 453 PM MST TUE FEB 22 2011 MTZ003-231400- /O.CAN.KMSO.WW.Y.0021.000000T0000Z-110223T0000Z/ /O.COR.KMSO.WS.W.0008.110223T1200Z-110224T1800Z/ FLATHEAD/MISSION VALLEYS- 453 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY. THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. * IMPACTS/TIMING: SNOW WILL DEVELOP AND NORTHEAST WINDS INTENSIFY ACROSS THE NORTHERN FLATHEAD VALLEY WEDNESDAY MORNING. BLOWING AND DRIFTING SNOW WILL REDUCE VISIBILITY AND CREATE HAZARDOUS DRIVING CONDITIONS THROUGH WEDNESDAY EVENING. CONTINUED GUSTY NORTHEAST WIND AND ARCTIC AIR WILL CAUSE DANGEROUSLY COLD WIND CHILL. * SNOW ACCUMULATIONS: 4 TO 8 INCHES BY THURSDAY MORNING. * VISIBILITY: LESS ONE QUARTER MILE AT TIMES. * WIND: NORTHEAST WIND 10 TO 20 MPH WEDNESDAY...BECOMING 20 TO 30 MPH DURING WEDNESDAY EVENING WITH GUSTS TO 40 MPH. STRONG WINDS CONTINUING INTO THURSDAY. * WIND CHILL: 10 TO 20 BELOW ZERO WEDNESDAY NIGHT INTO THURSDAY. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ043-231400- /O.UPG.KMSO.WW.Y.0021.000000T0000Z-110223T0600Z/ /O.COR.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ POTOMAC/SEELEY LAKE REGION- 453 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: TONIGHT MODERATE TO HEAVY SNOW SHOWERS THIS EVENING AND INTO WEDNESDAY MORNING WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. WEDNESDAY AND THURSDAY: MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH OVERNIGHT WEDNESDAY...WITH GUSTY EAST WINDS PRESENT ALONG HIGHWAY 200 THROUGH THURSDAY MORNING. BLOWING AND DRIFTING SNOW WILL REDUCE VISIBILITY AND CREATE HAZARDOUS TRAVEL CONDITIONS. DANGEROUSLY COLD WIND CHILL WILL DEVELOP BY THURSDAY MORNING. * SNOW ACCUMULATIONS: 6 TO 10 INCHES BY WEDNESDAY MORNING. AN ADDITIONAL 6 TO 10 INCHES BY THURSDAY MORNING. * WIND: EAST WIND 15 TO 25 MPH GUSTING TO 35 MPH ALONG HIGHWAY 200 CORRIDOR OVERNIGHT WEDNESDAY. * WIND CHILL: 15 TO 25 BELOW ZERO WEDNESDAY NIGHT INTO THURSDAY. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 200 BONNER TO GREENOUGH... HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH 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. && $$ MTZ004-231400- /O.COR.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ LOWER CLARK FORK REGION- 453 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM MST THURSDAY... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 11 AM MST THURSDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW TODAY WILL CREATE HAZARDOUS DRIVING CONDITIONS PARTICULARLY THIS AFTERNOON THROUGH TONIGHT. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES BY HEAVY SNOW SHOWERS. PERIODIC SNOW WILL CONTINUE THROUGH OVERNIGHT WEDNESDAY. * SNOW ACCUMULATIONS: TONIGHT...3 TO 6 INCHES IN THE VALLEYS...6 TO 10 INCHES OVER LOOKOUT PASS AND HIGH TERRAIN. WEDNESDAY THROUGH WEDNESDAY NIGHT...ADDITIONAL 6 TO 8 INCHES IN THE VALLEYS...6 TO 10 INCHES OVER LOOKOUT PASS AND HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-231400- /O.COR.KMSO.WS.W.0008.000000T0000Z-110224T1200Z/ KOOTENAI/CABINET REGION- 453 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 AM MST THURSDAY... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 5 AM MST THURSDAY. * IMPACTS/TIMING: OCCASIONALLY HEAVY SNOW SHOWERS WILL BE PRESENT THROUGH TONIGHT. THIS WILL CAUSE HAZARDOUS DRIVING CONDITIONS WITH REDUCED VISIBILITIES. SNOW WILL CONTINUE TO BE PRESENT THROUGHOUT WEDNESDAY...WITH NORTHEAST WINDS INTENSIFYING THROUGH WEDNESDAY NIGHT. BLOWING AND DRIFTING OF SNOW DURING THIS TIME WILL FURTHER CONTRIBUTE TO HAZARDOUS TRAVEL CONDITIONS. * SNOW ACCUMULATIONS: ADDITIONAL 2 TO 5 INCHES TONIGHT WITH HIGHER AMOUNTS AT LOCATIONS NEAR THE CANADIAN BORDER TONIGHT. ADDITIONAL 6 TO 10 INCHES WEDNESDAY THROUGH WEDNESDAY NIGHT. * 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 STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ005-006-231200- /O.COR.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 353 PM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: SNOW WILL BE HEAVY AT TIMES THROUGH TONIGHT OVER CLEARWATER AND NORTHERN IDAHO COUNTIES. ADDITIONAL ACCUMULATIONS ARE EXPECTED...AND THIS ALONG WITH REDUCED VISIBILITIES WILL CAUSE HAZARDOUS TRAVEL CONDITIONS. * ADDITIONAL SNOW ACCUMULATIONS: 6 TO 10 INCHES ACROSS CLEARWATER COUNTY AND ALONG HIGHWAY 12 FROM LOWELL TO LOLO PASS. 3 TO 6 INCHES ACROSS SOUTHERN IDAHO COUNTY INCLUDING DIXIE AND ELK CITY. && $$ IDZ007-231200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ OROFINO/GRANGEVILLE REGION- 353 PM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW AND BLOWING SNOW REDUCING VISIBILITY TO LESS THAN ONE QUARTER MILE WILL BE PRESENT THROUGH EARLY WEDNESDAY...PARTICULARLY ON THE CAMAS PRAIRIE NEAR GRANGEVILLE AND AT ELEVATIONS ABOVE 1500 FEET. HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED. * SNOW ACCUMULATIONS: ADDITIONAL 4 TO 8 INCHES WITH SUBSTANTIAL DRIFTING ON THE CAMAS PRAIRIE. 3 TO 6 INCHES ELSEWHERE ABOVE 1500 FEET. 2 TO 5 INCHES ALONG HIGHWAY 12 BETWEEN OROFINO AND KOOSKIA. * WIND: WEST WINDS GUSTING TO 40 MPH NEAR SNOW SHOWERS. 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. && $$ MTZ002-231400- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1200Z/ WEST GLACIER REGION- 453 PM MST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * IMPACTS/TIMING: HEAVY SNOW WILL RESUME THIS EVENING ACCOMPANIED BY STRONG EAST WINDS. BLOWING AND DRIFTING SNOW WILL CREATE DANGEROUSLY COLD WIND CHILL...WHITEOUTS...AND HAZARDOUS DRIVING CONDITIONS THROUGH EARLY THURSDAY. * SNOW ACCUMULATIONS: ADDITIONAL 5 TO 10 INCHES WITH SUBSTANTIAL DRIFTING. * WIND: BECOMING EAST 15 TO 25 MPH GUSTING TO 35 MPH TONIGHT THROUGH EARLY THURSDAY. * WIND CHILL: 15 TO 25 BELOW ZERO WEDNESDAY EVENING THROUGH THURSDAY MORNING. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ008-231200- /O.COR.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 353 PM PST TUE FEB 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY FOR WHITE BIRD GRADE... A WINTER STORM WARNING FOR WHITE BIRD GRADE REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY. * IMPACTS/TIMING: PERIODS OF HEAVY SNOW AND BLOWING SNOW REDUCING VISIBILITY TO LESS THAN ONE QUARTER MILE WILL BE PRESENT THROUGH EARLY WEDNESDAY. HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED. * SNOW ACCUMULATIONS: ADDITIONAL 4 TO 8 INCHES WITH SUBSTANTIAL DRIFTING. * WIND: WEST WINDS GUSTING TO 40 MPH NEAR SNOW SHOWERS. 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. && $$ MTZ005-231400- /O.COR.KMSO.WW.Y.0021.110223T0000Z-110223T1800Z/ MISSOULA/BITTERROOT VALLEYS- 453 PM MST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW SHOWER WILL BRING QUICK BURSTS OF SNOW AND REDUCED VISIBILITY THROUGH THIS EVENING WITH SNOW ACCUMULATIONS AND DEGRADED ROAD CONDITIONS OVERNIGHT AND THROUGH WEDNESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 5 INCHES WITH LOCALLY 5 TO 8 INCHES UNDER PERSISTENT BANDS OF SNOW SHOWERS. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ MTZ006-231400- /O.EXT.KMSO.WW.Y.0021.000000T0000Z-110223T1800Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 453 PM MST TUE FEB 22 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST WEDNESDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 11 AM MST WEDNESDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW SHOWERS WILL CONTINUE ACROSS INTO THE OVERNIGHT. THIS WILL CREATE DIFFICULT DRIVING CONDITIONS DUE TO SLICK ROADS AND REDUCED VISIBILITIES. * SNOW ACCUMULATIONS: 6 TO 10 INCHES OVER THE PASSES AND HIGHER TERRAIN. 2 TO 6 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$
068 WWUS45 KMSO 231218 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 518 AM MST WED FEB 23 2011 IDZ007-232030- /O.EXP.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ /O.NEW.KMSO.WS.W.0009.110224T0000Z-110225T0000Z/ OROFINO/GRANGEVILLE REGION- 418 AM PST WED FEB 23 2011 ...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY... ...WINTER STORM WARNING WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY. THE WINTER STORM WARNING FOR LAST NIGHT'S SHOWERS WILL EXPIRE AT 4 AM PST EARLY THIS MORNING. * IMPACTS/TIMING: * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE...HIGHWAY 12 OROFINO TO KOOSKIA PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ005-006-232030- /O.EXP.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ /O.NEW.KMSO.WS.W.0009.110224T0000Z-110225T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 418 AM PST WED FEB 23 2011 ...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY... ...WINTER STORM WARNING WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR HEAVY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY. THE WINTER STORM WARNING FOR LAST NIGHT'S SHOWERS WILL EXPIRE AT 4 AM PST EARLY THIS MORNING. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW TODAY WILL DEVELOP LATE THIS AFTERNOON AND CONTINUE THROUGH THURSDAY. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS THROUGH THIS TIME. * SNOW ACCUMULATIONS: 8 TO 12 INCHES. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ008-232030- /O.EXP.KMSO.WS.W.0008.000000T0000Z-110223T1200Z/ /O.NEW.KMSO.WS.W.0009.110224T0000Z-110225T0000Z/ LOWER HELLS CANYON/SALMON RIVER REGION- 418 AM PST WED FEB 23 2011 ...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY... ...WINTER STORM WARNING WILL EXPIRE AT 4 AM PST EARLY THIS MORNING FOR WHITE BIRD GRADE... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY. THE WINTER STORM WARNING FOR LAST NIGHT'S SHOWERS OVER WHITE BIRD GRADE WILL EXPIRE AT 4 AM PST EARLY THIS MORNING. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW TODAY WILL DEVELOP LATE THIS AFTERNOON AND CONTINUE THROUGH THURSDAY. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS THROUGH THIS TIME. * SNOW ACCUMULATIONS: 8 TO 12 INCHES. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 95 SLATE CREEK TO RIGGINS...WHITE BIRD GRADE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ005-232030- /O.EXB.KMSO.WS.W.0008.110224T0300Z-110224T2100Z/ /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T1800Z/ MISSOULA/BITTERROOT VALLEYS- 518 AM MST WED FEB 23 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER STORM WARNING IN EFFECT FROM 8 PM THIS EVENING TO 2 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 2 PM MST THURSDAY. A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOWFALL AND GUSTY EAST WINDS WILL BOTH INTENSIFY LATE THIS EVENING. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY EAST WINDS WILL ALSO PRODUCE DANGEROUS WIND CHILLS OVERNIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: 5 TO 8 INCHES BY THURSDAY AFTERNOON. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: EAST WINDS 20 TO 25 MPH WITH GUSTS TO 40 MPH LATE TONIGHT THROUGH THURSDAY. * WIND CHILL: 10 TO 20 BELOW ZERO LATE TONIGHT THROUGH THURSDAY. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ MTZ007-232030- /O.EXB.KMSO.WS.W.0008.110224T0600Z-110225T0000Z/ BUTTE/BLACKFOOT REGION- 518 AM MST WED FEB 23 2011 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. * IMPACTS/TIMING: SNOWFALL AND GUSTY EAST WINDS WILL BOTH INTENSIFY LATE THIS EVENING. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY... ESPECIALLY ALONG INTERSTATE 90 FROM DEER LODGE TO BEARMOUTH... HIGHWAY 200 AND HIGHWAY 12 OVER MACDONALD PASS. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY EAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS LATE TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: 4 TO 6 INCHES...UP TO 8 INCHES IN GEORGETOWN LAKE AND HIGHER ELEVATIONS. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: EAST WINDS 20 TO 25 MPH WITH GUSTS TO 40 MPH LATE TONIGHT THROUGH THURSDAY. * WIND CHILL: 10 TO 30 BELOW ZERO LATE TONIGHT THROUGH THURSDAY. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ003-232030- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ FLATHEAD/MISSION VALLEYS- 518 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY. * IMPACTS/TIMING: SNOWFALL AND GUSTY NORTHEAST WINDS WILL BOTH INTENSIFY EARLY THIS EVENING. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY NORTHEAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: 5 TO 10 INCHES BY THURSDAY MORNING. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH DURING THE DAY. IN THE FLATHEAD VALLEY...NORTHEAST WINDS INTENSIFYING 30 TO 35 MPH WITH GUSTS TO 45 MPH THIS EVENING. IN THE MISSION VALLEY... NORTHEAST WINDS INTENSIFYING 20 MPH WITH GUSTS TO 30 MPH THIS EVENING. STRONG WINDS WILL CONTINUE INTO THURSDAY. * WIND CHILL: 10 TO 20 BELOW ZERO WEDNESDAY NIGHT INTO THURSDAY. IN THE FLATHEAD VALLEY...30 BELOW ZERO THURSDAY MORNING. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON 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. && $$ MTZ004-232030- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ LOWER CLARK FORK REGION- 518 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW WILL CREATE HAZARDOUS DRIVING CONDITIONS THROUGH THURSDAY MORNING. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES BY HEAVY SNOW. * SNOW ACCUMULATIONS: ADDITIONAL VALLEY ACCUMULATIONS OF 8 TO 12 INCHES. AN ADDITIONAL 12 TO 18 INCHES OVER LOOKOUT PASS AND HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-232030- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1200Z/ KOOTENAI/CABINET REGION- 518 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * IMPACTS/TIMING: SNOWFALL AND GUSTY NORTHEAST WINDS WILL BOTH INTENSIFY LATE THIS AFTERNOON. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY NORTHEAST WINDS WILL ALSO PRODUCE DANGEROUS WIND CHILLS TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: ADDITIONAL VALLEY ACCUMULATIONS OF 6 TO 10 INCHES. AN ADDITIONAL 10 TO 16 INCHES OVER HIGHER TERRAIN. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS 35 TO 40 MPH LATE THIS AFTERNOON THROUGH THURSDAY. * WIND CHILL: 10 TO 30 BELOW ZERO TONIGHT THROUGH EARLY THURSDAY AFTERNOON. * 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 STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ002-232030- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1200Z/ WEST GLACIER REGION- 518 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * IMPACTS/TIMING: SNOWFALL AND GUSTY NORTHEAST WINDS WILL BOTH INTENSIFY EARLY THIS EVENING. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY NORTHEAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: ADDITIONAL VALLEY ACCUMULATIONS OF 3 TO 6 INCHES TODAY THROUGH THURSDAY. AN ADDITIONAL 6 TO 12 INCHES OVER MARIAS PASS AND HIGHER TERRAIN. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH DURING THE DAY...INTENSIFYING TO SPEEDS OF 30 TO 35 MPH WITH GUSTS TO 45 MPH THIS EVENING THROUGH THURSDAY MORNING. STRONG WINDS WILL CONTINUE THROUGH THURSDAY. * WIND CHILL: 10 TO 20 BELOW ZERO LATE THIS AFTERNOON...BECOMING 25 TO 40 BELOW ZERO BY THURSDAY MORNING. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ043-232030- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ POTOMAC/SEELEY LAKE REGION- 518 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW WILL CONTINUE TODAY THROUGH THURSDAY MORNING BEFORE TAPERING OFF. SNOWFALL WILL INTENSIFY LATE THIS EVENING AND GUSTY EAST WINDS WILL DEVELOP ALONG HIGHWAY 200 AND THE INTERSTATE 90 CORRIDOR FROM BEARMOUTH TO HELLGATE CANYON. THE COMBINATION OF SNOW AND WIND WILL PRODUCE BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY ALONG THIS ROUTE. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS TONIGHT THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY NORTHEAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: 6 TO 10 INCHES BY WEDNESDAY MORNING. AN ADDITIONAL 8 TO 12 INCHES BY LATE THURSDAY MORNING. * WIND: EAST WINDS 15 TO 25 MPH GUSTING TO 35 MPH ALONG HIGHWAY 200 AND THE INTERSTATE 90 CORRIDOR FROM BEARMOUTH TO HELLGATE CANYON LATE TONIGHT THROUGH THURSDAY. * WIND CHILL: 15 TO 25 BELOW ZERO TONIGHT THROUGH THURSDAY. 20 TO 30 BELOW ZERO THURSDAY MORNING. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 200 BONNER TO GREENOUGH... HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH 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. && $$ MTZ006-232030- /O.NEW.KMSO.WW.Y.0022.110224T0600Z-110225T0000Z/ /O.CON.KMSO.WW.Y.0021.000000T0000Z-110223T1800Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 518 AM MST WED FEB 23 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND CONTINUE THROUGH THURSDAY. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS THROUGH THIS TIME. * SNOW ACCUMULATIONS: 8 TO 12 INCHES OVER THE PASSES AND HIGHER TERRAIN. 5 TO 8 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR ICE ACCUMULATIONS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ IDZ009-010-232030- /O.NEW.KMSO.WW.Y.0022.110224T0600Z-110225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 518 AM MST WED FEB 23 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND CONTINUE THROUGH THURSDAY. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS THROUGH THIS TIME. * SNOW ACCUMULATIONS: 6 TO 8 INCHES OVER LOST TRAIL PASS AND HIGHER TERRAIN. 2 TO 5 INCHES AT LOWER ELEVATIONS AND OVER GILMORE...BANNOCK AND LEMHI PASSES. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON 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. && $$
588 WWUS45 KMSO 231228 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 528 AM MST WED FEB 23 2011 MTZ005-232200- /O.EXT.KMSO.WW.Y.0021.000000T0000Z-110223T1600Z/ /O.CON.KMSO.WS.W.0008.110224T0300Z-110224T2100Z/ MISSOULA/BITTERROOT VALLEYS- 528 AM MST WED FEB 23 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM MST THIS MORNING... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 2 PM MST THURSDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 9 AM MST THIS MORNING. A WINTER STORM WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 2 PM MST THURSDAY. * IMPACTS/TIMING: SNOWFALL AND GUSTY EAST WINDS WILL BOTH INTENSIFY LATE THIS EVENING. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY EAST WINDS WILL ALSO PRODUCE DANGEROUS WIND CHILLS OVERNIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: 5 TO 8 INCHES BY THURSDAY AFTERNOON. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: EAST WINDS 20 TO 25 MPH WITH GUSTS TO 40 MPH LATE TONIGHT THROUGH THURSDAY. * WIND CHILL: 10 TO 20 BELOW ZERO LATE TONIGHT THROUGH THURSDAY. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ MTZ003-232200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ FLATHEAD/MISSION VALLEYS- 528 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY. * IMPACTS/TIMING: SNOWFALL AND GUSTY NORTHEAST WINDS WILL BOTH INTENSIFY EARLY THIS EVENING. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY NORTHEAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: 5 TO 10 INCHES BY THURSDAY MORNING. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH DURING THE DAY. IN THE FLATHEAD VALLEY...NORTHEAST WINDS INTENSIFYING 30 TO 35 MPH WITH GUSTS TO 45 MPH THIS EVENING. IN THE MISSION VALLEY... NORTHEAST WINDS INTENSIFYING 20 MPH WITH GUSTS TO 30 MPH THIS EVENING. STRONG WINDS WILL CONTINUE INTO THURSDAY. * WIND CHILL: 10 TO 20 BELOW ZERO WEDNESDAY NIGHT INTO THURSDAY. IN THE FLATHEAD VALLEY...30 BELOW ZERO THURSDAY MORNING. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON 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. && $$ MTZ004-232200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ LOWER CLARK FORK REGION- 528 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW WILL CREATE HAZARDOUS DRIVING CONDITIONS THROUGH THURSDAY MORNING. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES BY HEAVY SNOW. * SNOW ACCUMULATIONS: ADDITIONAL VALLEY ACCUMULATIONS OF 8 TO 12 INCHES. AN ADDITIONAL 12 TO 18 INCHES OVER LOOKOUT PASS AND HIGH TERRAIN. * LOCATIONS IMPACTED INCLUDE...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS...HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-232200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1200Z/ KOOTENAI/CABINET REGION- 528 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * IMPACTS/TIMING: SNOWFALL AND GUSTY NORTHEAST WINDS WILL BOTH INTENSIFY LATE THIS AFTERNOON. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY NORTHEAST WINDS WILL ALSO PRODUCE DANGEROUS WIND CHILLS TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: ADDITIONAL VALLEY ACCUMULATIONS OF 6 TO 10 INCHES. AN ADDITIONAL 10 TO 16 INCHES OVER HIGHER TERRAIN. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS 35 TO 40 MPH LATE THIS AFTERNOON THROUGH THURSDAY. * WIND CHILL: 10 TO 30 BELOW ZERO TONIGHT THROUGH EARLY THURSDAY AFTERNOON. * 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 STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ002-232200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1200Z/ WEST GLACIER REGION- 528 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * IMPACTS/TIMING: SNOWFALL AND GUSTY NORTHEAST WINDS WILL BOTH INTENSIFY EARLY THIS EVENING. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY NORTHEAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: ADDITIONAL VALLEY ACCUMULATIONS OF 3 TO 6 INCHES TODAY THROUGH THURSDAY. AN ADDITIONAL 6 TO 12 INCHES OVER MARIAS PASS AND HIGHER TERRAIN. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 30 MPH DURING THE DAY...INTENSIFYING TO SPEEDS OF 30 TO 35 MPH WITH GUSTS TO 45 MPH THIS EVENING THROUGH THURSDAY MORNING. STRONG WINDS WILL CONTINUE THROUGH THURSDAY. * WIND CHILL: 10 TO 20 BELOW ZERO LATE THIS AFTERNOON...BECOMING 25 TO 40 BELOW ZERO BY THURSDAY MORNING. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ043-232200- /O.CON.KMSO.WS.W.0008.000000T0000Z-110224T1800Z/ POTOMAC/SEELEY LAKE REGION- 528 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW WILL CONTINUE TODAY THROUGH THURSDAY MORNING BEFORE TAPERING OFF. SNOWFALL WILL INTENSIFY LATE THIS EVENING AND GUSTY EAST WINDS WILL DEVELOP ALONG HIGHWAY 200 AND THE INTERSTATE 90 CORRIDOR FROM BEARMOUTH TO HELLGATE CANYON. THE COMBINATION OF SNOW AND WIND WILL PRODUCE BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY ALONG THIS ROUTE. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS TONIGHT THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY NORTHEAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: 6 TO 10 INCHES BY WEDNESDAY MORNING. AN ADDITIONAL 8 TO 12 INCHES BY LATE THURSDAY MORNING. * WIND: EAST WINDS 15 TO 25 MPH GUSTING TO 35 MPH ALONG HIGHWAY 200 AND THE INTERSTATE 90 CORRIDOR FROM BEARMOUTH TO HELLGATE CANYON LATE TONIGHT THROUGH THURSDAY. * WIND CHILL: 15 TO 25 BELOW ZERO TONIGHT THROUGH THURSDAY. 20 TO 30 BELOW ZERO THURSDAY MORNING. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 200 BONNER TO GREENOUGH... HIGHWAY 83 SEELEY LAKE TO CONDON...I-90 EAST MISSOULA TO BEARMOUTH 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. && $$ IDZ005>008-232200- /O.CON.KMSO.WS.W.0009.110224T0000Z-110225T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 428 AM PST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW TODAY WILL DEVELOP LATE THIS AFTERNOON AND CONTINUE THROUGH THURSDAY. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS THROUGH THIS TIME. * SNOW ACCUMULATIONS: 8 TO 12 INCHES. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY... GREER GRADE...HIGHWAY 12 OROFINO TO KOOSKIA...HIGHWAY 95 SLATE CREEK TO RIGGINS...WHITE BIRD GRADE PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ007-232200- /O.CON.KMSO.WS.W.0008.110224T0600Z-110225T0000Z/ BUTTE/BLACKFOOT REGION- 528 AM MST WED FEB 23 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. * IMPACTS/TIMING: SNOWFALL AND GUSTY EAST WINDS WILL BOTH INTENSIFY LATE THIS EVENING. THE COMBINATION OF SNOW AND WIND WILL PRODUCE WIDESPREAD BLOWING/DRIFTING OF SNOW AND LOCAL BLIZZARD CONDITIONS WITH RAPID REDUCTIONS TO VISIBILITY... ESPECIALLY ALONG INTERSTATE 90 FROM DEER LODGE TO BEARMOUTH... HIGHWAY 200 AND HIGHWAY 12 OVER MACDONALD PASS. THIS WILL CREATE EXTREMELY TREACHEROUS DRIVING CONDITIONS THROUGH THURSDAY. DRAMATICALLY FALLING TEMPERATURES COMBINED WITH CONTINUED GUSTY EAST WINDS WILL ALSO PRODUCE EXTREMELY DANGEROUS WIND CHILLS LATE TONIGHT THROUGH THURSDAY. * SNOW ACCUMULATIONS: 4 TO 6 INCHES...UP TO 8 INCHES IN GEORGETOWN LAKE AND HIGHER ELEVATIONS. * VISIBILITY: LESS THAN ONE QUARTER MILE AT TIMES. * WIND: EAST WINDS 20 TO 25 MPH WITH GUSTS TO 40 MPH LATE TONIGHT THROUGH THURSDAY. * WIND CHILL: 10 TO 30 BELOW ZERO LATE TONIGHT THROUGH THURSDAY. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR BLOWING SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ006-232200- /O.EXT.KMSO.WW.Y.0021.000000T0000Z-110223T1600Z/ /O.CON.KMSO.WW.Y.0022.110224T0600Z-110225T0000Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 528 AM MST WED FEB 23 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM MST THIS MORNING... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 9 AM MST THIS MORNING. A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND CONTINUE THROUGH THURSDAY. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS THROUGH THIS TIME. * SNOW ACCUMULATIONS: 8 TO 12 INCHES OVER THE PASSES AND HIGHER TERRAIN. 5 TO 8 INCHES AT LOWER ELEVATIONS. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR ICE ACCUMULATIONS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ IDZ009-010-232200- /O.CON.KMSO.WW.Y.0022.110224T0600Z-110225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 528 AM MST WED FEB 23 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. * IMPACTS/TIMING: LIGHT TO MODERATE SNOW WILL DEVELOP LATE THIS EVENING AND CONTINUE THROUGH THURSDAY. REDUCTIONS TO VISIBILITIES AND SLICK/SNOW-COVERED ROADWAYS WILL CREATE HAZARDOUS DRIVING CONDITIONS THROUGH THIS TIME. * SNOW ACCUMULATIONS: 6 TO 8 INCHES OVER LOST TRAIL PASS AND HIGHER TERRAIN. 2 TO 5 INCHES AT LOWER ELEVATIONS AND OVER GILMORE...BANNOCK AND LEMHI PASSES. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON 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. && $$
What forecasters said that day
The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this winter weather advisory went out at Feb 21, 3:55 AM MST, 36 minutes earlier.
Area forecast discussion, Feb 21, 3:55 AM MST, 36 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
355 AM MST MON FEB 21 2011
...ACCUMULATING SNOWS TONIGHT THROUGH MID WEEK...
...ARCTIC AIR INTRUSION WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...
.DISCUSSION...WINTER WILL MOST DEFINITELY CONTINUE THIS WEEK AS A
COUPLE INTERESTING WEATHER FEATURES WILL IMPACT THE REGION. A
SLOW MOVING PACIFIC TROUGH IS STILL EXPECTED TO MOVE OVER THE
NORTHERN ROCKIES TONIGHT. IT WILL HAVE THE MOST IMPACT ON
NORTHERN IDAHO AND NORTHWEST MONTANA. THE GREATEST SNOW AMOUNTS
ARE TARGETED OVER CLEARWATER COUNTY AND NORTHERN IDAHO
COUNTY...AND THUS A WINTER STORM WATCH HAS BEEN ISSUED FOR THAT
AREA FROM THIS EVENING THROUGH TUESDAY NIGHT. THAT'S NOT TO SAY
THE SNOW WILL END COMPLETELY AT THAT TIME...BUT IT SHOULD TAPER
ENOUGH BY WEDNESDAY MORNING TO MAINLY BE A NUISANCE.
SNOW ACCUMULATIONS IN NORTHWEST MONTANA TONIGHT AND TUESDAY WILL
NOT BE AS GREAT...BUT STILL ENOUGH TO CAUSE PROLONGED PERIODS OF
DIFFICULT OR SLOW TRAVEL CONDITIONS. THEREFORE A WINTER WEATHER
ADVISORY HAS BEEN ISSUED FOR THAT REGION. AGAIN...SNOW IS NOT
EXPECTED TO END AFTER TUESDAY...BUT IMPACTS SHOULD LESSEN BRIEFLY
TUESDAY NIGHT AND WEDNESDAY.
LIGHT SNOW...BUT POTENTIALLY STILL SLICK ROADS...WILL DEVELOP AT
TIMES OVER WEST CENTRAL AND SOUTHWEST MONTANA INCLUDING THE I-90
AND HIGHWAY 93 CORRIDORS EAST AND SOUTH OF MISSOULA.
AN ARCTIC BOUNDARY IS EXPECTED TO TRACK SOUTHWARD AND PULL COLD
CANADIAN AIR THROUGH GAPS IN THE CONTINENTAL DIVIDE WEDNESDAY NIGHT
THROUGH THURSDAY NIGHT. THIS SET UP IS A BIT DIFFERENT THAN PREVIOUS
ARCTICS SO FAR THIS WINTER. FIRST...THERE IS NO SUBTROPICAL MOISTURE
FEED WITH THIS FEATURE...WHICH SHOULD RESULT IN LESSER AMOUNTS OF
LIQUID PRECIPITATION EXPECTED. SECOND...COLD AIR ALREADY IN PLACE
WILL RESULT IN HIGHER SNOW RATIOS AS PRECIPITATION INTENSIFIES
ALONG THE ARCTIC BOUNDARY...RESULTING IN LIGHT AND FLUFFY
SNOWFALL. AS EASTERLY WINDS INTENSIFY WEDNESDAY NIGHT...BLOWING
AND DRIFTING OF FLUFFY SNOW...RAPIDLY REDUCED VISIBILITIES AND
DANGEROUS WIND CHILLS WILL BE THE MAIN IMPACT WITH THIS FEATURE.
FIRST ALONG HIGHWAY 2 FROM MARIAS PASS THROUGH BADROCK CANYON AND
INTO THE FLATHEAD VALLEY. THEN ALONG THE CONTINENTAL DIVIDE IN
SOUTHWEST MONTANA...INCLUDING INTERSTATE 90 FROM GARRISON JUNCTION
THROUGH HELLGATE CANYON TO DOWNTOWN MISSOULA AND HIGHWAY 200 FROM
BONNER TOWARD LINCOLN. A HAZARDOUS WEATHER OUTLOOK HAS BEEN ISSUED
FOR THIS FEATURE IN ORDER TO AVOID CONFUSION WITH CURRENT WINTER
WEATHER HIGHLIGHTS.
THE NORTHERN ROCKIES WILL REMAIN UNDER A LONGWAVE TROUGH FRIDAY
THROUGH THE WEEKEND. AS A RESULT...VALLEY TEMPERATURES WILL BE
SLOW TO WARM EACH DAY AS STABLE CONDITIONS PERSIST THROUGH THIS
TIME.
&&
.AVIATION...A WEAK UPPER WAVE WILL CROSS THE AREA IN THE WESTERLY
FLOW THIS MORNING. THIS COULD CAUSE LIGHT SNOW WITH VISIBILITIES
DOWN TO 3 MILES AT TIMES AT KMSO/KBTM/KSMN. THE POTENTIAL FOR THIS
WILL DIMINISH BY EARLY AFTERNOON. A MUCH MORE ORGANIZED SYSTEM
WILL MOVE OVER THE AREA FROM THE NORTHWEST TONIGHT. THIS WILL
BEGIN AN ACTIVE SNOW PATTERN PERSISTING BEYOND TUESDAY. KGPI AND
KMSO WILL BE MOST IMPACTED.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY FROM 11 PM THIS EVENING TO 5 PM MST
TUESDAY FLATHEAD/MISSION VALLEYS...KOOTENAI/CABINET
REGION...LOWER CLARK FORK REGION...WEST GLACIER REGION.
WINTER WEATHER ADVISORY FROM 5 AM TO 11 PM MST TUESDAY
BITTERROOT/SAPPHIRE MOUNTAINS...POTOMAC/SEELEY LAKE REGION.
ID...WINTER WEATHER ADVISORY FROM 4 AM TUESDAY TO 4 AM PST WEDNESDAY
OROFINO/GRANGEVILLE REGION.
WINTER STORM WATCH FROM THIS EVENING THROUGH LATE TUESDAY NIGHT
NORTHERN CLEARWATER MOUNTAINS...SOUTHERN CLEARWATER
MOUNTAINS.
&&
SHORT TERM...WHITMORE
LONG TERM....DEROSA
AVIATION...WHITMOREThe office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 2:36 PM MST | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more | 72 hr |
| Feb 21, 4:31 AM MST | Winter Storm Watch | MSO | Clearwater, Idaho | 10 hr |
Nearby
Winter Weather Advisories in Montana, 2011Winter Weather Advisories in Idaho, 2011Every winter weather advisory in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.