Alert archive / Montana / Winter Storm Warnings in 2015
Winter Storm Warning 13, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Dec 20, 2015, 2:31 PM MST for 7 counties in Montana; Clearwater County, Idaho County, Idaho. It took effect at Dec 21, 2015, 2:00 PM MST. It was in force for 19 hr. 9 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 20, 2015, 2:31 PM MST (21:31 UTC)
- In effect from
- Dec 21, 2015, 2:00 PM MST
- Expired
- Dec 22, 2015, 9:25 AM MST
- In force
- 19 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID, Flathead County, MT, Granite County, MT, Lincoln County, MT, Mineral County, MT, Missoula County, MT, Ravalli County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 53 km from the middle of the area, began a volume at 21:32 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 22, 7:00 AM MST | SNOW 4 | 1 Sw Columbia Falls, MT | SNOW STARTED 3PM 12/21 WITH LIGHT SNOW CONTINUING THROUGH 7AM 12/22. |
| Dec 22, 7:00 AM MST | SNOW 6 | 4 W La Salle, MT | |
| Dec 22, 7:00 AM MST | SNOW 8 | 2 Wnw Belknap, MT | STILL SNOWING LIGHTLY AT 7AM MST. |
| Dec 22, 7:00 AM MST | HEAVY SNOW 13 | 6 Ne Heron, MT | STARTED AT 4PM 12/21/15. STILL SNOWING LIGHTLY AS OF 7AM MST 12/22/15. |
| Dec 22, 8:27 AM MST | HEAVY SNOW 7 | 5 Wnw Kalispell, MT | |
| Dec 22, 8:54 AM MST | SNOW 4 | Condon, MT | STEADY LIGHT SNOW STILL FALLING. |
| Dec 22, 9:00 AM MST | SNOW 6.8 | 2 N Bigfork, MT | CURRENTLY SNOWING. |
| Dec 22, 9:20 AM MST | SNOW 8 | 4 N Creston, MT | STILL SNOWING. |
| Dec 22, 9:35 AM MST | SNOW 4 | Marion, MT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 9.5 hours before the alert went out and 146 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
- 514 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
350 WWUS45 KMSO 202131 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 231 PM MST SUN DEC 20 2015 IDZ005-006-MTZ004-006-222145- /O.NEW.KMSO.WS.W.0013.151221T2100Z-151223T0000Z/ 231 PM MST SUN DEC 20 2015 /131 PM PST SUN DEC 20 2015/ ...WINTER STORM WARNING IN EFFECT FROM 2 PM MST /1 PM PST/ MONDAY TO 5 PM MST /4 PM PST/ TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 2 PM MST /1 PM PST/ MONDAY TO 5 PM MST /4 PM PST/ TUESDAY. * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL MAKE ITS WAY THROUGH THE AREA LATE MONDAY THROUGH TUESDAY CAUSING SIGNIFICANT IMPACTS TO HOLIDAY TRAVEL. IN ADDITION...GUSTY WESTERLY WINDS WILL BE ASSOCIATED WITH THIS SYSTEM. THE COMBINATION OF SNOW AND WIND WILL CAUSE PERIODS OF BLOWING SNOW...ESPECIALLY OVER MOUNTAIN PASSES. DIFFICULT DRIVING CONDITIONS ARE ANTICIPATED FOR AREA ROADWAYS. * SNOW ACCUMULATIONS: 5 TO 10 INCHES OVER MOUNTAIN PASSES WITH 2 TO 5 INCHES EXPECTED IN THE LOWER ELEVATIONS * WINDS: WESTERLY WINDS GUSTING UP TO 30 MPH. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS... HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN... HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ001-222145- /O.NEW.KMSO.WW.Y.0054.151221T2100Z-151223T0000Z/ 231 PM MST SUN DEC 20 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM MONDAY TO 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 2 PM MONDAY TO 5 PM MST TUESDAY. * IMPACTS/TIMING: A SIGNIFICANT STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA MONDAY AFTERNOON THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 2 TO 5 INCHES BY TUESDAY AFTERNOON. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH $$ MTZ003-222145- /O.NEW.KMSO.WW.Y.0054.151222T0000Z-151223T0000Z/ 231 PM MST SUN DEC 20 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM MONDAY TO 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM MONDAY TO 5 PM MST TUESDAY. * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA MONDAY NIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON $$ MTZ002-043-222145- /O.NEW.KMSO.WW.Y.0054.151222T0000Z-151223T0000Z/ 231 PM MST SUN DEC 20 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM MONDAY TO 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM MONDAY TO 5 PM MST TUESDAY. * IMPACTS/TIMING: A SIGNIFICANT STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA MONDAY NIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 3 TO 6 INCHES...WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I- 90 EAST MISSOULA TO BEARMOUTH $$ IDZ009-010-MTZ007-222145- /O.NEW.KMSO.WW.Y.0054.151222T0000Z-151223T0000Z/ 231 PM MST SUN DEC 20 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM MONDAY TO 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM MONDAY TO 5 PM MST TUESDAY. * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA MONDAY NIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON...BUTTE...GEORGETOWN LAKE... HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS $$ MTZ005-222145- /O.NEW.KMSO.WW.Y.0054.151222T0000Z-151223T0000Z/ 231 PM MST SUN DEC 20 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM MONDAY TO 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM MONDAY TO 5 PM MST TUESDAY. * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA MONDAY NIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 1 TO 3 INCHES. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ IDZ007-222145- /O.NEW.KMSO.WW.Y.0054.151221T2100Z-151223T0000Z/ 131 PM PST SUN DEC 20 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM MONDAY TO 4 PM PST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 1 PM MONDAY TO 4 PM PST TUESDAY. * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA MONDAY NIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 3 TO 5 INCHES OVER GREER GRADE TO WEIPPE...1 TO 2 INCHES ON THE CAMAS PRAIRIE. * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE $$
4 follow-up statements
984 WWUS45 KMSO 212116 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 216 PM MST MON DEC 21 2015 MTZ001-230000- /O.UPG.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ /O.EXA.KMSO.WS.W.0013.000000T0000Z-151223T0000Z/ 216 PM MST MON DEC 21 2015 ...WINTER STORM WARNING IN EFFECT UNTIL 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW...WHICH IS IN EFFECT UNTIL 5 PM MST TUESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: A SIGNIFICANT STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA THIS AFTERNOON THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS BY TUESDAY AFTERNOON. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH $$ IDZ005-006-MTZ004-006-230000- /O.CON.KMSO.WS.W.0013.000000T0000Z-151223T0000Z/ 216 PM MST MON DEC 21 2015 /116 PM PST MON DEC 21 2015/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ TUESDAY... * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL MAKE ITS WAY THROUGH THE AREA THIS AFTERNOON THROUGH TUESDAY CAUSING SIGNIFICANT IMPACTS TO HOLIDAY TRAVEL. IN ADDITION...GUSTY WESTERLY WINDS WILL BE ASSOCIATED WITH THIS SYSTEM. THE COMBINATION OF SNOW AND WIND WILL CAUSE PERIODS OF BLOWING SNOW...ESPECIALLY OVER MOUNTAIN PASSES. DIFFICULT DRIVING CONDITIONS ARE ANTICIPATED FOR AREA ROADWAYS. * SNOW ACCUMULATIONS: 5 TO 10 INCHES OVER MOUNTAIN PASSES WITH 2 TO 5 INCHES EXPECTED IN THE LOWER ELEVATIONS * WINDS: WESTERLY WINDS GUSTING UP TO 30 MPH. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS... HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN... HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ003-230000- /O.CON.KMSO.WW.Y.0054.151222T0000Z-151223T0000Z/ 216 PM MST MON DEC 21 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY... * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON $$ MTZ002-043-230000- /O.CON.KMSO.WW.Y.0054.151222T0000Z-151223T0000Z/ 216 PM MST MON DEC 21 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY... * IMPACTS/TIMING: A SIGNIFICANT STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 3 TO 6 INCHES...WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I- 90 EAST MISSOULA TO BEARMOUTH $$ IDZ009-010-MTZ007-230000- /O.CON.KMSO.WW.Y.0054.151222T0000Z-151223T0000Z/ 216 PM MST MON DEC 21 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY... * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON...BUTTE...GEORGETOWN LAKE... HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS $$ MTZ005-230000- /O.CON.KMSO.WW.Y.0054.151222T0000Z-151223T0000Z/ 216 PM MST MON DEC 21 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY... * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 1 TO 3 INCHES. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ IDZ007-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 116 PM PST MON DEC 21 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST TUESDAY... * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 3 TO 5 INCHES OVER GREER GRADE TO WEIPPE... 1 TO 2 INCHES ON THE CAMAS PRAIRIE. * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE $$
794 WWUS45 KMSO 220711 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1211 AM MST TUE DEC 22 2015 IDZ005-006-MTZ004-006-230000- /O.CON.KMSO.WS.W.0013.000000T0000Z-151223T0000Z/ 1211 AM MST TUE DEC 22 2015 /1111 PM PST MON DEC 21 2015/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL MAKE ITS WAY THROUGH THE AREA THIS AFTERNOON THROUGH TUESDAY CAUSING SIGNIFICANT IMPACTS TO HOLIDAY TRAVEL. IN ADDITION...GUSTY WESTERLY WINDS WILL BE ASSOCIATED WITH THIS SYSTEM. THE COMBINATION OF SNOW AND WIND WILL CAUSE PERIODS OF BLOWING SNOW...ESPECIALLY OVER MOUNTAIN PASSES. DIFFICULT DRIVING CONDITIONS ARE ANTICIPATED FOR AREA ROADWAYS. * SNOW ACCUMULATIONS: 5 TO 10 INCHES OVER MOUNTAIN PASSES WITH 2 TO 5 INCHES EXPECTED IN THE LOWER ELEVATIONS * WINDS: WESTERLY WINDS GUSTING UP TO 30 MPH. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS... HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN... HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ001-230000- /O.CON.KMSO.WS.W.0013.000000T0000Z-151223T0000Z/ 1211 AM MST TUE DEC 22 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA THIS AFTERNOON THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS BY TUESDAY AFTERNOON. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH $$ IDZ008-230000- /O.EXA.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 1111 PM PST MON DEC 21 2015 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM PST TUESDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 4 PM PST TUESDAY. * IMPACTS/TIMING: PERIODS OF LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH TUESDAY. SNOWY ROADS WILL CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL OVER WHITE BIRD GRADE. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 95 OVER WHITE BIRD GRADE $$ MTZ003-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 1211 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON $$ MTZ002-043-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 1211 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 3 TO 6 INCHES...WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I- 90 EAST MISSOULA TO BEARMOUTH $$ IDZ009-010-MTZ007-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 1211 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON...BUTTE...GEORGETOWN LAKE... HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS $$ MTZ005-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 1211 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 1 TO 3 INCHES. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ IDZ007-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 1111 PM PST MON DEC 21 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST TUESDAY... * IMPACTS/TIMING: ANOTHER STORM SYSTEM WILL MAKE ITS WAY THROUGH THE AREA TONIGHT THROUGH TUESDAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 3 TO 5 INCHES OVER GREER GRADE TO WEIPPE... 1 TO 2 INCHES ON THE CAMAS PRAIRIE. * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE $$
151 WWUS45 KMSO 221252 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 552 AM MST TUE DEC 22 2015 IDZ005-006-MTZ004-006-230000- /O.CON.KMSO.WS.W.0013.000000T0000Z-151223T0000Z/ 552 AM MST TUE DEC 22 2015 /452 AM PST TUE DEC 22 2015/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL CONTINUE TO IMPACT HOLIDAY TRAVEL THROUGH TODAY. IN ADDITION...GUSTY WESTERLY WINDS WILL BE ASSOCIATED WITH THIS SYSTEM. THE COMBINATION OF SNOW AND WIND WILL CAUSE PERIODS OF BLOWING SNOW...ESPECIALLY OVER MOUNTAIN PASSES. DIFFICULT DRIVING CONDITIONS ARE ANTICIPATED FOR AREA ROADWAYS. * STORM TOTAL SNOW ACCUMULATIONS: 5 TO 10 INCHES OVER MOUNTAIN PASSES WITH 2 TO 5 INCHES EXPECTED IN THE LOWER ELEVATIONS * WINDS: WESTERLY WINDS GUSTING UP TO 30 MPH. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS... HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN... HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ001-230000- /O.CON.KMSO.WS.W.0013.000000T0000Z-151223T0000Z/ 552 AM MST TUE DEC 22 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL CONTINUE TO IMPACT HOLIDAY TRAVEL THROUGH TODAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * STORM TOTAL SNOW ACCUMULATIONS: 3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS BY THIS AFTERNOON. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH $$ MTZ003-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 552 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL CONTINUE TO IMPACT HOLIDAY TRAVEL THROUGH TODAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 2 TO 4 INCHES WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON $$ MTZ002-043-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 552 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL CONTINUE TO IMPACT HOLIDAY TRAVEL THROUGH TODAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * STORM TOTAL SNOW ACCUMULATIONS: 3 TO 6 INCHES...WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I- 90 EAST MISSOULA TO BEARMOUTH $$ IDZ009-010-MTZ007-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 552 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL CONTINUE TO IMPACT HOLIDAY TRAVEL THROUGH TODAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...SHOUP...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS...SALMON...BUTTE...GEORGETOWN LAKE... HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS $$ MTZ005-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 552 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL CONTINUE TO IMPACT HOLIDAY TRAVEL THROUGH TODAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 1 TO 3 INCHES. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ IDZ007-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 452 AM PST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * IMPACTS/TIMING: A SIGNIFICANT SYSTEM WILL CONTINUE TO IMPACT HOLIDAY TRAVEL THROUGH TODAY. SNOWY ROADS WILL LIKELY CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL. * SNOW ACCUMULATIONS: 3 TO 5 INCHES OVER GREER GRADE TO WEIPPE... 1 TO 2 INCHES ON THE CAMAS PRAIRIE. * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE $$ IDZ008-230000- /O.CON.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 452 AM PST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * IMPACTS/TIMING: PERIODS OF LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH TODAY. SNOWY ROADS WILL CREATE DIFFICULT DRIVING CONDITIONS AND IMPACT HOLIDAY TRAVEL OVER WHITE BIRD GRADE. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 95 SLATE CREEK TO RIGGINS...WHITE BIRD GRADE $$
127 WWUS45 KMSO 221625 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 925 AM MST TUE DEC 22 2015 IDZ005-006-MTZ004-006-222100- /O.CAN.KMSO.WS.W.0013.000000T0000Z-151223T0000Z/ /O.EXB.KMSO.WW.Y.0054.000000T0000Z-151222T2100Z/ 925 AM MST TUE DEC 22 2015 /825 AM PST TUE DEC 22 2015/ ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 2 PM MST /1 PM PST/ THIS AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 2 PM MST /1 PM PST/ THIS AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED. * IMPACTS/TIMING: THE MAIN SYSTEM HAS MOVED OUT OF THE REGION...BUT SNOW SHOWERS WILL CONTINUE TO CAUSE MODERATE SNOWFALL AT TIMES. ROADWAYS...ESPECIALLY MOUNTAIN PASSES...COULD BE SLICK AND HAZARDOUS THROUGH AT LEAST THE EARLY AFTERNOON. * SNOW ACCUMULATIONS: 1 TO 2 INCHES OF NEW SNOW TODAY. * LOCATIONS IMPACTED INCLUDE...ELK RIVER...HIGHWAY 11 PIERCE TO HEADQUARTERS...PIERCE...DIXIE...ELK CITY...HIGHWAY 12 LOWELL TO LOLO PASS...EVARO HILL...HIGHWAY 200 THOMPSON FALLS TO PLAINS... HIGHWAY 200 TROUT CREEK TO HERON...I-90 LOOKOUT PASS TO HAUGAN... HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ001-222100- /O.CAN.KMSO.WS.W.0013.000000T0000Z-151223T0000Z/ /O.EXB.KMSO.WW.Y.0054.000000T0000Z-151222T2100Z/ 925 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED. * IMPACTS/TIMING: THE MAIN SYSTEM HAS MOVED OUT OF THE REGION...BUT SNOW SHOWERS WILL CONTINUE TO CAUSE LIGHT TO MODERATE SNOWFALL AT TIMES. ROADWAYS COULD BE SLICK AND HAZARDOUS THROUGH AT LEAST THE EARLY AFTERNOON. * SNOW ACCUMULATIONS: 1 TO 2 INCHES OF NEW SNOW TODAY. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 37 EUREKA TO LIBBY...HIGHWAY 56 BULL LAKE ROAD... HIGHWAY 93 EUREKA TO WHITEFISH $$ IDZ008>010-221730- /O.CAN.KMSO.WW.Y.0054.000000T0000Z-151223T0000Z/ 925 AM MST TUE DEC 22 2015 /825 AM PST TUE DEC 22 2015/ ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER WEATHER ADVISORY. THE STORM SYSTEM HAS MOVED OUT OF THE AREA...BUT VERY LIGHT SNOW SHOWERS COULD MOVE OVER THE AREA TODAY. $$ MTZ003-222100- /O.EXT.KMSO.WW.Y.0054.000000T0000Z-151222T2100Z/ 925 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * IMPACTS/TIMING: THE MAIN SYSTEM HAS MOVED OUT OF THE REGION...BUT LINGERING SNOW SHOWERS WILL CAUSE LIGHT TO MODERATE SNOWFALL AT TIMES. ROADWAYS COULD BE SLICK AND HAZARDOUS THROUGH AT LEAST THE EARLY AFTERNOON. * SNOW ACCUMULATIONS: 1 TO 2 INCHES OF NEW SNOW TODAY. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON $$ MTZ002-043-222100- /O.EXT.KMSO.WW.Y.0054.000000T0000Z-151222T2100Z/ 925 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * IMPACTS/TIMING: THE MAIN SYSTEM HAS MOVED OUT OF THE REGION...BUT LINGERING SNOW SHOWERS WILL CAUSE LIGHT TO MODERATE SNOWFALL AT TIMES. ROADWAYS WILL BE SLICK AND HAZARDOUS THROUGH AT LEAST THE EARLY AFTERNOON. * ADDITIONAL SNOW ACCUMULATIONS: 2 TO 5 INCHES...WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE...BAD ROCK CANYON...ESSEX...HIGHWAY 83 BIGFORK TO SWAN LAKE...MARIAS PASS...POLEBRIDGE...HIGHWAY 200 BONNER TO GREENOUGH...HIGHWAY 83 SEELEY LAKE TO CONDON...I- 90 EAST MISSOULA TO BEARMOUTH $$ MTZ007-222100- /O.EXT.KMSO.WW.Y.0054.000000T0000Z-151222T2100Z/ 925 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * IMPACTS/TIMING: THE MAIN SYSTEM HAS MOVED OUT OF THE REGION...BUT LINGERING SNOW SHOWERS WILL CAUSE LIGHT TO MODERATE SNOWFALL ALONG AND NORTH OF A LINE FROM GARRISON JUNCTION TO MACDONALD PASS. ROADWAYS WILL CONTINUE TO BE SLICK AND HAZARDOUS THROUGH AT LEAST THE EARLY AFTERNOON. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS $$ MTZ005-222100- /O.EXT.KMSO.WW.Y.0054.000000T0000Z-151222T2100Z/ 925 AM MST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * IMPACTS/TIMING: THE MAIN SYSTEM HAS MOVED OUT OF THE REGION...BUT LINGERING SNOW SHOWERS WILL CAUSE LIGHT TO MODERATE SNOWFALL IN THE BITTERROOT VALLEY. ROADWAYS WILL CONTINUE TO BE SLICK AND HAZARDOUS THROUGH AT LEAST THE EARLY AFTERNOON. * SNOW ACCUMULATIONS: 1 TO 3 INCHES. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA $$ IDZ007-222100- /O.EXT.KMSO.WW.Y.0054.000000T0000Z-151222T2100Z/ 825 AM PST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... * IMPACTS/TIMING: THE MAIN SYSTEM HAS MOVED OUT OF THE REGION...BUT LINGERING SNOW SHOWERS WILL CAUSE LIGHT TO MODERATE SNOWFALL NEAR WEIPPE AND GRANGEMONT ROAD AREA. ROADWAYS WILL CONTINUE TO BE SLICK AND HAZARDOUS THROUGH AT LEAST THE EARLY AFTERNOON. * SNOW ACCUMULATIONS: 1 TO 2 NEW SNOW TODAY. * LOCATIONS IMPACTED INCLUDE...CAMAS PRAIRIE...GRANGEVILLE AND VICINITY...GREER GRADE $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 2:31 PM MST | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more | 47 hr |
Nearby
Winter Storm Warnings in Montana, 2015Winter Storm Warnings in Idaho, 2015Every winter storm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.