Alert archive / Montana / Winter Storm Warnings in 2016
Winter Storm Warning 9, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Dec 15, 2016, 5:58 AM MST for 9 counties in Montana. It was in force for 5 hr. 26 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 15, 2016, 5:58 AM MST (12:58 UTC)
- Expired
- Dec 15, 2016, 11:00 AM MST
- In force
- 5 hr
- Issued by
- NWS Missoula, MT
Counties Deer Lodge County, MT, Granite County, MT, Lake County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 34 km from the middle of the area, began a volume at 13:00 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 15, 6:12 AM MST | SNOW 3.4 | 4 Wnw West Valley, MT | 0.25 OF SNOW WATER EQUIVALENT. 13.6 TO 1 SNOW TO LIQUID RATIO. TEMPERATURE 15 DEGREES WITH NO WIND. . |
| Dec 15, 6:12 AM MST | SNOW 5.5 | Bonner, MT | . |
| Dec 15, 6:29 AM MST | SNOW 6 | Lolo, MT | . |
| Dec 15, 6:30 AM MST | SNOW 6.5 | 2 N Hamilton, MT | 1.5 INCHES IN THE LAST HOUR. . |
| Dec 15, 6:31 AM MST | SNOW 5.5 | 3 E Florence, MT | . |
| Dec 15, 6:39 AM MST | SNOW 7 | 1 Wsw Georgetown, MT | GEORGETOWN LAKE. |
| Dec 15, 6:43 AM MST | SNOW 7 | Stevensville, MT | 7 OF SNOW OVERNIGHT WITH MODERATE SNOW AT THE TIME OF THE REPORT. |
| Dec 15, 7:00 AM MST | SNOW 3 | 3 S White Pine, MT | COCORAHS STATION 3 S WHITE PINE /MT-SN-4/. THE DURATION OF THE SNOW EVENT WAS 24 HOURS. |
| Dec 15, 7:00 AM MST | SNOW 4 | 1 Nnw Evaro, MT | COCORAHS STATION EVARO /MT-MS-9/. THE DURATION OF THE SNOW EVENT WAS 24 HOURS. |
| Dec 15, 7:00 AM MST | SNOW 5 | 2 Nnw East Missoula, MT | . THE DURATION OF THE SNOW EVENT WAS 9 HOURS. |
| Dec 15, 7:27 AM MST | SNOW 6 | 2 Wnw Stevensville, MT | 6 INCHES TOTAL OVERNIGHT AND STILL SNOWING. |
| Dec 15, 7:36 AM MST | SNOW 4 | Polson, MT | MDT REPORTED 4 OF NEW SNOW OVERNIGHT. |
| Dec 15, 7:37 AM MST | SNOW 4 | Rollins, MT | MDT REPORTED 4 OF NEW SNOW OVERNIGHT. |
| Dec 15, 7:42 AM MST | SNOW 5 | 3 S Missoula, MT | MISSOULA CITY TRANSPORTATION REPORTED THEY ARE UNABLE TO SERVICE THE HIGH PARK WAY AND WHITAKER DRIVE DUE TO SNOW. UP TO 5 OR MORE OF SNOW HAS BEEN REPORTED IN THE AREA. |
| Dec 15, 8:13 AM MST | SNOW 7 | 4 Ne Stevensville, MT | 7 INCHES OF NEW SNOW OVERNIGHT. STILL SNOWING AT THE TIME OF THE REPORT. |
| Dec 15, 8:16 AM MST | SNOW 6.1 | Corvallis, MT | . |
| Dec 15, 8:44 AM MST | SNOW 4 | Ronan, MT | . |
| Dec 15, 8:49 AM MST | SNOW 4 | 1 N Greenough, MT | ONE MILE VISIBILITY WITH SNOW. 8 INCHES SNOW DEPTH. . THE DURATION OF THE SNOW EVENT WAS 10 HOURS. |
| Dec 15, 9:00 AM MST | SNOW 3 | 3 Sw Ovando, MT | COCORAHS STATION 2 WSW OVANDO /MT-PW-3/. THE DURATION OF THE SNOW EVENT WAS 12 HOURS. |
| Dec 15, 9:15 AM MST | SNOW 8 | 1 Nnw Hamilton, MT | 8 OF NEW SNOW OVERNIGHT AND THIS MORNING. |
| Dec 15, 9:48 AM MST | SNOW 2.8 | 2 Sw Newcomb, MT | . THE DURATION OF THE SNOW EVENT WAS 24 HOURS. |
| Dec 15, 9:49 AM MST | HEAVY SNOW 8 | 2 Wnw Stevensville, MT | 1 INCH OF ACCUMULATION IN THE LAST HOUR. . THE DURATION OF THE HEAVY SNOW EVENT WAS 12 HOURS. |
| Dec 15, 9:52 AM MST | HEAVY SNOW 6.6 | Lolo, MT | . THE DURATION OF THE HEAVY SNOW EVENT WAS 12 HOURS. |
| Dec 15, 9:58 AM MST | HEAVY SNOW 6 | 1 W Deer Lodge, MT | STARTED A LITTLE BIT AFTER 9 PM LAST EVENING. . THE DURATION OF THE HEAVY SNOW EVENT WAS 12 HOURS. |
| Dec 15, 10:20 AM MST | HEAVY SNOW 13 | Darby, MT | 12 INCHES AT 8 AM. 1 INCH ADDITIONAL SINCE THEN. . THE DURATION OF THE HEAVY SNOW EVENT WAS 24 HOURS. |
| Dec 15, 10:24 AM MST | HEAVY SNOW 10.5 | 5 Ene Sula, MT | MODERATE SNOW NOW. . THE DURATION OF THE HEAVY SNOW EVENT WAS 13 HOURS. |
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, 1.0 hours before the alert went out and 221 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
- 672 m above ground
- 0-6 km bulk shear
- 87 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 283 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
203 WWUS45 KMSO 151258 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 558 AM MST THU DEC 15 2016 MTZ005-151800- /O.UPG.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ /O.NEW.KMSO.WS.W.0009.161215T1258Z-161215T1800Z/ 558 AM MST THU DEC 15 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING FOR BITTERROOT VALLEY AND MISSOULA... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY WILL MAKE TRAVEL HAZARDOUS, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 3 TO 4 INCHES FOR MISSOULA VALLEY. 4 TO 6 INCHES POSSIBLE FOR BITTEROOT VALLEY WITH THE HIGHER AMOUNTS BEING ON THE SOUTHERN END. $$ IDZ009-010-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 558 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THROUGH THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. IN ADDITION, FREEZING RAIN IS POSSIBLE FOR THE LOWER ELEVATIONS OF LEMHI COUNTY THIS MORNING. CONFIDENCE IN VALLEY FREEZING RAIN IS LOW. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR THE VALLEYS. 3 TO 6 INCHES FOR THE MOUNTAINS, WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: SHOUP, BANNOCK PASS, HIGHWAY 28 TENDOY TO LONE PINE, HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE, LEMHI PASS, AND SALMON $$ IDZ007-008-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 458 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 1 TO 4 INCHES, WITH 4 TO 6 INCHES FOR THE HIGHER TERRAIN AND WHITE BIRD GRADE. * LOCATIONS IMPACTED INCLUDE: CAMAS PRAIRIE, GRANGEVILLE AND VICINITY, GREER GRADE, HIGHWAY 95 SLATE CREEK TO RIGGINS, AND WHITE BIRD GRADE $$ IDZ005-006-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 458 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 4 TO 8 INCHES WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO HEADQUARTERS, PIERCE, DIXIE, ELK CITY, AND HIGHWAY 12 LOWELL TO LOLO PASS $$ MTZ006-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 558 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 7 TO 12 INCHES. $$ MTZ007-161300- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 558 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. AN ARCTIC FRONT WILL BEGIN TO SLIDE DOWN THIS EVENING INTO FRIDAY AND WILL BRING ANOTHER ROUND OF SNOW, SOME BREEZY WINDS, BLOWING SNOW, AND FRIGID TEMPERATURES TO THE AREA. * SNOW ACCUMULATIONS BY THURSDAY MORNING: 3 TO 5 INCHES FOR THE VALLEYS, 5 TO 8 INCHES OVER THE PASSES AND IN THE HIGHER ELEVATIONS WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS $$ MTZ004-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 558 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 2 TO 5 INCHES FOR THE VALLEYS. 4 TO 6 INCHES FOR THE MOUNTAINS, WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 LOOKOUT PASS TO HAUGAN $$ MTZ043-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 558 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 2 TO 5 INCHES FOR THE VALLEYS. 4 TO 6 INCHES FOR THE MOUNTAINS, WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH $$
4 follow-up statements
970 WWUS45 KMSO 151446 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 746 AM MST THU DEC 15 2016 MTZ043-151800- /O.UPG.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ /O.EXA.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ 746 AM MST THU DEC 15 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: VERY HEAVY SNOW WITH LITTLE TO NO VISIBILITY DUE TO FALLING SNOW AND SNOW BEING KICKED UP FROM CARS IS EXPECTED THROUGH 9AM ESPECIALLY FOR I-90 AND HIGHWAY 200. CONDITIONS SHOULD START TO IMPROVE BETWEEN 9 AND 10 AM. ROAD CONDITIONS ARE POOR AND TRAVEL WILL BE SLOW AT BEST. * STORM TOTAL SNOW ACCUMULATIONS: 5 TO 8 INCHES BY 11AM. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH $$ MTZ004-151800- /O.UPG.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ /O.EXA.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ 746 AM MST THU DEC 15 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: VERY HEAVY SNOW WITH LITTLE TO NO VISIBILITY DUE TO FALLING SNOW AND SNOW BEING KICKED UP FROM CARS IS EXPECTED THROUGH 9AM. I-90 BETWEEN MISSOULA AND SAINT REGIS ARE EXPECTED TO HAVE THE WORST OF THE DRIVING CONDITIONS WHICH SHOULD START TO IMPROVE BETWEEN 9 AND 10 AM. ROAD CONDITIONS ARE POOR AND TRAVEL WILL BE SLOW AT BEST. * STORM TOTAL SNOW ACCUMULATIONS: 4 TO 7 INCHES BY 11AM. * LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 LOOKOUT PASS TO HAUGAN $$ MTZ005-151800- /O.CON.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ 746 AM MST THU DEC 15 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR BITTERROOT VALLEY AND MISSOULA... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: VERY HEAVY SNOW WITH LITTLE TO NO VISIBILITY DUE TO FALLING SNOW AND SNOW BEING KICKED UP FROM CARS IS EXPECTED THROUGH 9AM. CONDITIONS SHOULD START TO IMPROVE BETWEEN 9 AND 10 AM. ROAD CONDITIONS ARE POOR AND TRAVEL WILL BE SLOW AT BEST. * STORM TOTAL SNOW ACCUMULATIONS: 5 TO 8 INCHES BY 11AM. $$ IDZ009-010-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 746 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THROUGH THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. IN ADDITION, FREEZING RAIN IS POSSIBLE FOR THE LOWER ELEVATIONS OF LEMHI COUNTY THIS MORNING. CONFIDENCE IN VALLEY FREEZING RAIN IS LOW. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR THE VALLEYS. 3 TO 6 INCHES FOR THE MOUNTAINS, WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: SHOUP, BANNOCK PASS, HIGHWAY 28 TENDOY TO LONE PINE, HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE, LEMHI PASS, AND SALMON $$ IDZ007-008-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 646 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. WHITE BIRD HILL IS PARTICULARLY SNOWY AND CONDITIONS ARE POOR. * SNOW ACCUMULATIONS: 1 TO 4 INCHES, WITH 4 TO 6 INCHES FOR THE HIGHER TERRAIN AND WHITE BIRD GRADE. * LOCATIONS IMPACTED INCLUDE: CAMAS PRAIRIE, GRANGEVILLE AND VICINITY, GREER GRADE, HIGHWAY 95 SLATE CREEK TO RIGGINS, AND WHITE BIRD GRADE $$ IDZ005-006-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 646 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 4 TO 8 INCHES WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO HEADQUARTERS, PIERCE, DIXIE, ELK CITY, AND HIGHWAY 12 LOWELL TO LOLO PASS $$ MTZ006-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 746 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 7 TO 12 INCHES. $$ MTZ007-161500- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 746 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. AN ARCTIC FRONT WILL BEGIN TO SLIDE DOWN THIS EVENING INTO FRIDAY AND WILL BRING ANOTHER ROUND OF SNOW, SOME BREEZY WINDS, BLOWING SNOW, AND FRIGID TEMPERATURES TO THE AREA. * SNOW ACCUMULATIONS BY 11AM: 3 TO 5 INCHES FOR THE VALLEYS, 7 TO 10 INCHES OVER THE PASSES AND IN THE HIGHER ELEVATIONS WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS $$
739 WWUS45 KMSO 151536 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 836 AM MST THU DEC 15 2016 MTZ007-161545- /O.EXA.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ /O.CON.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 836 AM MST THU DEC 15 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: SNOW WILL BECOME HEAVY BETWEEN 8:30AM AND 10:00 AM THIS MORNING ON I-90 GARRISON TO BUTTE. VERY POOR CONDITIONS ARE EXPECTED AND SLIDE-OFFS ARE ALREADY OCCURRING. TRAVEL IS SLICK AND SLOW AT BEST AND WILL CONTINUE TO BE VERY POOR THROUGH 11AM. AN ARCTIC FRONT WILL BEGIN TO SLIDE DOWN THIS EVENING INTO FRIDAY AND WILL BRING ANOTHER ROUND OF SNOW, SOME BREEZY WINDS, BLOWING SNOW, AND FRIGID TEMPERATURES TO THE AREA. * STORM TOTAL SNOW ACCUMULATIONS BY 11AM: 4 TO 6 INCHES FOR THE VALLEYS, 7 TO 10 INCHES OVER THE PASSES AND IN THE HIGHER ELEVATIONS WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS $$ MTZ004-151800- /O.CON.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ 836 AM MST THU DEC 15 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: VERY HEAVY SNOW WITH LITTLE TO NO VISIBILITY DUE TO FALLING SNOW AND SNOW BEING KICKED UP FROM CARS IS EXPECTED THROUGH 9:30 AM. I-90 BETWEEN MISSOULA AND SAINT REGIS ARE EXPECTED TO HAVE THE WORST OF THE DRIVING CONDITIONS WHICH SHOULD START TO IMPROVE BETWEEN AFTER 10 AM. ROAD CONDITIONS ARE POOR AND TRAVEL WILL BE SLOW AT BEST. * STORM TOTAL SNOW ACCUMULATIONS: 5 TO 7 INCHES BY 11 AM. * LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 LOOKOUT PASS TO HAUGAN $$ MTZ005-151800- /O.CON.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ 836 AM MST THU DEC 15 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR BITTERROOT VALLEY AND MISSOULA... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: VERY HEAVY SNOW WITH LITTLE TO NO VISIBILITY DUE TO FALLING SNOW AND SNOW BEING KICKED UP FROM CARS IS EXPECTED THROUGH 9:30 AM. CONDITIONS SHOULD START TO IMPROVE BETWEEN AFTER 10 AM. ROAD CONDITIONS ARE POOR AND TRAVEL WILL BE SLOW AT BEST. * STORM TOTAL SNOW ACCUMULATIONS: 5 TO 8 INCHES BY 11AM. $$ MTZ043-151800- /O.CON.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ 836 AM MST THU DEC 15 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: VERY HEAVY SNOW WITH LITTLE TO NO VISIBILITY DUE TO FALLING SNOW AND SNOW BEING KICKED UP FROM CARS IS EXPECTED THROUGH 10 AM ESPECIALLY FOR I-90 AND HIGHWAY 200. CONDITIONS SHOULD START TO IMPROVE BY 11 AM. ROAD CONDITIONS ARE POOR AND TRAVEL WILL BE SLOW AT BEST. * STORM TOTAL SNOW ACCUMULATIONS: 5 TO 8 INCHES BY 11AM. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH $$ IDZ009-010-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 836 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THROUGH THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. IN ADDITION, FREEZING RAIN IS POSSIBLE FOR THE LOWER ELEVATIONS OF LEMHI COUNTY THIS MORNING. CONFIDENCE IN VALLEY FREEZING RAIN IS LOW. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR THE VALLEYS. 3 TO 6 INCHES FOR THE MOUNTAINS, WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: SHOUP, BANNOCK PASS, HIGHWAY 28 TENDOY TO LONE PINE, HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE, LEMHI PASS, AND SALMON $$ IDZ007-008-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 736 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. WHITE BIRD HILL IS PARTICULARLY SNOWY AND CONDITIONS ARE POOR. * SNOW ACCUMULATIONS: 1 TO 4 INCHES, WITH 4 TO 6 INCHES FOR THE HIGHER TERRAIN AND WHITE BIRD GRADE. * LOCATIONS IMPACTED INCLUDE: CAMAS PRAIRIE, GRANGEVILLE AND VICINITY, GREER GRADE, HIGHWAY 95 SLATE CREEK TO RIGGINS, AND WHITE BIRD GRADE $$ IDZ005-006-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 736 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 4 TO 8 INCHES WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO HEADQUARTERS, PIERCE, DIXIE, ELK CITY, AND HIGHWAY 12 LOWELL TO LOLO PASS $$ MTZ006-151800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 836 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 7 TO 12 INCHES. $$
792 WWUS45 KMSO 151707 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1007 AM MST THU DEC 15 2016 MTZ007-161715- /O.CON.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ /O.CON.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1007 AM MST THU DEC 15 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: SNOW WILL BECOME HEAVY BETWEEN 8:30AM AND 10:00 AM THIS MORNING ON I-90 GARRISON TO BUTTE. VERY POOR CONDITIONS ARE EXPECTED AND SLIDE-OFFS ARE ALREADY OCCURRING. TRAVEL IS SLICK AND SLOW AT BEST AND WILL CONTINUE TO BE VERY POOR THROUGH 11AM. AN ARCTIC FRONT WILL BEGIN TO SLIDE DOWN THIS EVENING INTO FRIDAY AND WILL BRING ANOTHER ROUND OF SNOW, SOME BREEZY WINDS, BLOWING SNOW, AND FRIGID TEMPERATURES TO THE AREA. * STORM TOTAL SNOW ACCUMULATIONS BY 11AM: 4 TO 6 INCHES FOR THE VALLEYS, 7 TO 10 INCHES OVER THE PASSES AND IN THE HIGHER ELEVATIONS WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS $$ MTZ004-151815- /O.CON.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ 1007 AM MST THU DEC 15 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: VERY HEAVY SNOW WITH LITTLE TO NO VISIBILITY DUE TO FALLING SNOW AND SNOW BEING KICKED UP FROM CARS IS EXPECTED THROUGH 9:30 AM. I-90 BETWEEN MISSOULA AND SAINT REGIS ARE EXPECTED TO HAVE THE WORST OF THE DRIVING CONDITIONS WHICH SHOULD START TO IMPROVE BETWEEN AFTER 10 AM. ROAD CONDITIONS ARE POOR AND TRAVEL WILL BE SLOW AT BEST. * STORM TOTAL SNOW ACCUMULATIONS: 5 TO 7 INCHES BY 11 AM. * LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 LOOKOUT PASS TO HAUGAN $$ MTZ005-151815- /O.CON.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ 1007 AM MST THU DEC 15 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR BITTERROOT VALLEY AND MISSOULA... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * IMPACTS/TIMING: VERY HEAVY SNOW WITH LITTLE TO NO VISIBILITY DUE TO FALLING SNOW AND SNOW BEING KICKED UP FROM CARS IS EXPECTED THROUGH 9:30 AM. CONDITIONS SHOULD START TO IMPROVE BETWEEN AFTER 10 AM. ROAD CONDITIONS ARE POOR AND TRAVEL WILL BE SLOW AT BEST. * STORM TOTAL SNOW ACCUMULATIONS: 5 TO 8 INCHES BY 11AM. $$ MTZ043-151815- /O.CON.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ 1007 AM MST THU DEC 15 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: VERY HEAVY SNOW WITH LITTLE TO NO VISIBILITY DUE TO FALLING SNOW AND SNOW BEING KICKED UP FROM CARS IS EXPECTED THROUGH 10 AM ESPECIALLY FOR I-90 AND HIGHWAY 200. CONDITIONS SHOULD START TO IMPROVE BY 11 AM. ROAD CONDITIONS ARE POOR AND TRAVEL WILL BE SLOW AT BEST. * STORM TOTAL SNOW ACCUMULATIONS: 5 TO 8 INCHES BY 11AM. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH $$ MTZ003-161715- /O.EXA.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1007 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: SNOW HAS BEEN FALLING ON THE SOUTH SIDE OF FLATHEAD LAKE AND THERE HAVE BEEN REPORTS OF SLICK AND SNOW COVERED ROADWAYS. ADDITIONAL SNOW IS EXPECTED TODAY THROUGHOUT THE MISSION AND FLATHEAD VALLEYS. ALONG WITH SNOW, NORTH WINDS WILL INCREASE THIS AFTERNOON CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * NEW SNOW ACCUMULATIONS: 2 TO 4 INCHES ON THE SOUTH SIDE OF FLATHEAD LAKE INCLUDING POLSON. 1 TO 3 INCHES ELSEWHERE. * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25 IN THE FLATHEAD VALLEY. AROUND NEGATIVE 10 IN THE MISSION VALLEY. * LOCATIONS IMPACTED INCLUDE: FLATHEAD LAKE, FLATHEAD VALLEY, MISSION VALLEY, AND POLSON $$ MTZ001-161715- /O.EXA.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1007 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: ADDITIONAL SNOW IS EXPECTED TODAY. ALONG WITH SNOW, NORTH AND EAST WINDS THIS AFTERNOON WILL CREATE BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * NEW SNOW ACCUMULATIONS: 1 TO 3 INCHES * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND HIGHWAY 93 EUREKA TO WHITEFISH $$ MTZ002-161715- /O.EXA.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1007 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: ADDITIONAL SNOW IS EXPECTED TODAY. ALONG WITH SNOW, NORTH AND EAST WINDS WILL INCREASE THIS AFTERNOON CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * NEW SNOW ACCUMULATIONS: 2 TO 4 INCHES * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25. * LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE $$ IDZ009-010-151815- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 1007 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THROUGH THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES COULD MAKE TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. IN ADDITION, FREEZING RAIN IS POSSIBLE FOR THE LOWER ELEVATIONS OF LEMHI COUNTY THIS MORNING. CONFIDENCE IN VALLEY FREEZING RAIN IS LOW. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR THE VALLEYS. 3 TO 6 INCHES FOR THE MOUNTAINS, WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * LOCATIONS IMPACTED INCLUDE: SHOUP, BANNOCK PASS, HIGHWAY 28 TENDOY TO LONE PINE, HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE, LEMHI PASS, AND SALMON $$ IDZ007-008-151815- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 907 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. WHITE BIRD HILL IS PARTICULARLY SNOWY AND CONDITIONS ARE POOR. * SNOW ACCUMULATIONS: 1 TO 4 INCHES, WITH 4 TO 6 INCHES FOR THE HIGHER TERRAIN AND WHITE BIRD GRADE. * LOCATIONS IMPACTED INCLUDE: CAMAS PRAIRIE, GRANGEVILLE AND VICINITY, GREER GRADE, HIGHWAY 95 SLATE CREEK TO RIGGINS, AND WHITE BIRD GRADE $$ IDZ005-006-151815- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 907 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 4 TO 8 INCHES WITH LOCALLY HIGHER AMOUNTS. * LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO HEADQUARTERS, PIERCE, DIXIE, ELK CITY, AND HIGHWAY 12 LOWELL TO LOLO PASS $$ MTZ006-151815- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161215T1800Z/ 1007 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * IMPACTS/TIMING: SNOW WILL CONTINUE THIS MORNING. SNOW ACCUMULATIONS ON ROADS AND REDUCED VISIBILITY AT TIMES ARE MAKING TRAVEL SLICK AND SLOW, ESPECIALLY FOR THE MORNING COMMUTE. * SNOW ACCUMULATIONS: 7 TO 12 INCHES. $$
729 WWUS45 KMSO 151803 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1103 AM MST THU DEC 15 2016 MTZ004-161800- /O.EXP.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ /O.EXA.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1103 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST FRIDAY... ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... * IMPACTS/TIMING: ADDITIONAL SNOW IS EXPECTED TODAY. ALONG WITH SNOW, NORTH AND EAST WINDS WILL INCREASE TONIGHT CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * ADDITIONAL SNOW ACCUMULATIONS: 2 TO 4 INCHES * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25. * LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 LOOKOUT PASS TO HAUGAN $$ MTZ043-161800- /O.EXP.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ /O.EXA.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1103 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST FRIDAY... ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... * IMPACTS/TIMING: ADDITIONAL SNOW IS EXPECTED TODAY. ALONG WITH SNOW, NORTH AND EAST WINDS WILL INCREASE TONIGHT CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * ADDITIONAL SNOW ACCUMULATIONS: 2 TO 4 INCHES * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH $$ MTZ007-161800- /O.EXP.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ /O.CON.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1103 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... * * IMPACTS/TIMING: SNOW WILL CONTINUE THROUGH THIS AFTERNOON WITH SLOW TRAVEL TO CONTINUE. AN ARCTIC FRONT WILL BEGIN TO SLIDE DOWN THIS EVENING INTO FRIDAY AND WILL BRING ANOTHER ROUND OF SNOW, SOME BREEZY WINDS, BLOWING SNOW, AND FRIGID TEMPERATURES TO THE AREA. * ADDITIONAL SNOW ACCUMULATIONS: 2 TO 4 INCHES. * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25. * LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS $$ MTZ005-161800- /O.EXP.KMSO.WS.W.0009.000000T0000Z-161215T1800Z/ /O.EXA.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1103 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST FRIDAY FOR BITTERROOT VALLEY AND MISSOULA... ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING FOR BITTERROOT VALLEY AND MISSOULA... * IMPACTS/TIMING: ADDITIONAL SNOW IS EXPECTED TODAY. ALONG WITH SNOW, NORTH AND EAST WINDS WILL INCREASE THIS EVENING CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * ADDITIONAL SNOW ACCUMULATIONS: 1 TO 3 INCHES * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25. $$ IDZ009-010-161800- /O.EXT.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1103 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: SNOW WILL CONTINUE TODAY WITH SLOW TRAVEL TO REMAIN. ALONG WITH SNOW, NORTH AND EAST WINDS WILL INCREASE THIS EVENING CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * SNOW ACCUMULATIONS: 1 TO 3 INCHES. * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25. * LOCATIONS IMPACTED INCLUDE: SHOUP, BANNOCK PASS, HIGHWAY 28 TENDOY TO LONE PINE, HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE, LEMHI PASS, AND SALMON $$ IDZ007-008-161800- /O.EXT.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1003 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST FRIDAY... * IMPACTS/TIMING: SNOW WILL BECOME SHOWERY TODAY BEFORE RETURNING FOR THIS EVENING AND TONIGHT. ALONG WITH SNOW, NORTH AND EAST WINDS WILL INCREASE TONIGHT CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES, WITH 4 TO 6 INCHES FOR THE HIGHER TERRAIN AND WHITE BIRD GRADE BR FRIDAY MORNING. * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 5 TO NEGATIVE 15. * LOCATIONS IMPACTED INCLUDE: CAMAS PRAIRIE, GRANGEVILLE AND VICINITY, GREER GRADE, HIGHWAY 95 SLATE CREEK TO RIGGINS, AND WHITE BIRD GRADE $$ IDZ005-006-161800- /O.EXT.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1003 AM PST THU DEC 15 2016 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST FRIDAY... * IMPACTS/TIMING: SNOW WILL BECOME SHOWERY TODAY BEFORE RETURNING FOR THIS EVENING AND TONIGHT. ALONG WITH SNOW, NORTH AND EAST WINDS WILL INCREASE TONIGHT CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 5 INCHES. * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 5 TO NEGATIVE 15. * LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO HEADQUARTERS, PIERCE, DIXIE, ELK CITY, AND HIGHWAY 12 LOWELL TO LOLO PASS $$ MTZ006-161800- /O.EXT.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1103 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST FRIDAY FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * IMPACTS/TIMING: ADDITIONAL SNOW IS EXPECTED TODAY. ALONG WITH SNOW, NORTH AND EAST WINDS WILL INCREASE THIS EVENING CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * ADDITIONAL SNOW ACCUMULATIONS: 3 TO 5 INCHES. * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 5 TO NEGATIVE 15. $$ MTZ003-161800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1103 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: SNOW HAS BEEN FALLING ON THE SOUTH SIDE OF FLATHEAD LAKE AND THERE HAVE BEEN REPORTS OF SLICK AND SNOW COVERED ROADWAYS. ADDITIONAL SNOW IS EXPECTED TODAY THROUGHOUT THE MISSION AND FLATHEAD VALLEYS. ALONG WITH SNOW, NORTH WINDS WILL INCREASE THIS AFTERNOON CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * NEW SNOW ACCUMULATIONS: 2 TO 4 INCHES ON THE SOUTH SIDE OF FLATHEAD LAKE INCLUDING POLSON. 1 TO 3 INCHES ELSEWHERE. * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25 IN THE FLATHEAD VALLEY. AROUND NEGATIVE 10 IN THE MISSION VALLEY. * LOCATIONS IMPACTED INCLUDE: FLATHEAD LAKE, FLATHEAD VALLEY, MISSION VALLEY, AND POLSON $$ MTZ001-161800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1103 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: ADDITIONAL SNOW IS EXPECTED TODAY. ALONG WITH SNOW, NORTH AND EAST WINDS THIS AFTERNOON WILL CREATE BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * NEW SNOW ACCUMULATIONS: 1 TO 3 INCHES * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND HIGHWAY 93 EUREKA TO WHITEFISH $$ MTZ002-161800- /O.CON.KMSO.WW.Y.0065.000000T0000Z-161216T1800Z/ 1103 AM MST THU DEC 15 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * IMPACTS/TIMING: ADDITIONAL SNOW IS EXPECTED TODAY. ALONG WITH SNOW, NORTH AND EAST WINDS WILL INCREASE THIS AFTERNOON CREATING BLOWING SNOW AND VERY COLD WIND CHILLS THROUGH FRIDAY MORNING. * NEW SNOW ACCUMULATIONS: 2 TO 4 INCHES * WIND CHILLS BY FRIDAY MORNING: NEGATIVE 15 TO NEGATIVE 25. * LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE $$
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this winter storm warning went out at Dec 15, 3:46 AM MST, 2 hours 12 minutes earlier.
Area forecast discussion, Dec 15, 3:46 AM MST, 2 hours 12 minutes before
Area Forecast Discussion
National Weather Service Missoula MT
346 AM MST Thu Dec 15 2016
...Widespread Snow Across North Central Idaho and West Central
Montana Today...
...Arctic Airmass Impacting the Area Tonight into Friday...
.DISCUSSION...A warm front moved into north central Idaho and
west central Montana last night, causing fairly steady snow this
morning. Areas south of a line from Lookout pass to McDonald pass
should receive a couple to several inches of snow by this
afternoon, so the winter weather advisories are still in place.
The steady snow will shift to southwest Montana this afternoon, as
scattered showers affect the remainder of the Northern Rockies.
An arctic airmass will be moving into the Northern Rockies tonight
causing gusty easterly winds, especially the favored narrow
valley locations. The cold air combined with gusty easterly winds
will create dangerous wind chills, particularly along the
Continental Divide. As this air is ushered into the region, it
could pick up the previously fallen snow, creating blowing and
drifting snow. The models are also indicating that the low
pressure system that will be moving through the Great Basin wraps
precipitation into southwest Montana and Lemhi county Thursday
night into Friday morning. This wrap around moisture should allow
for a couple of more inches of new snow to fall across the
aforementioned area.
The precipitation and clouds will move out of the area Friday
night, allowing for a fairly clear night. The well entrenched
arctic air will cause temperatures to drop dramatically by
Saturday morning. A few of the cold high valley locations along
the divide could have readings around -20 to -30 degrees on
Saturday morning.
Forecast models are indicating a weak disturbance dropping into
northwest Montana Saturday night which could increase shower
activity. The Glacier Park region appears to have the best chance
of receiving light snow from this disturbance.
Northwest flow with weak passing disturbances will bring light
snow to portions of northwest/west-central Montana and north
central Idaho Sunday into Monday. Favored upslope areas, such as
the Mission and Clearwater Mountains, the Seeley/Swan valleys and
locations near the Idaho panhandle can expect several inches of
new snow, even down into the lowest elevations.
A series of fronts will move through the region Tuesday into
Wednesday. Initially, a warm front will begin to moderate
temperatures with a strong southerly flow. The degree to which
temperatures moderate will depend greatly on the strength of
inversions however. Locations on the Camas Prairie may experience
a period of strong southerly winds Monday afternoon into Tuesday.
Then a strong Pacific cold front will pass Tuesday afternoon,
bringing gusty west winds to the region. Precipitation (in the
form of snow) will be prevalent across the region, though larger
valleys (such as the Missoula/Bitterroot and Mission valleys) will
see downsloping during this time frame.
&&
.AVIATION...The warm front has moved into north central Idaho and
west central Montana. This front is causing widespread snow with
KMSO, KSMN and KBTM being impacted by low visibilities and
ceilings. The focus of snow will shift to southwest Montana (KBTM)
by this afternoon. An arctic cold front will push into the
Northern Rockies tonight creating gusty easterly to northerly
winds. Also southwest Montana and Lemhi county could continue to
experience steady snow as a low pressure moves across southern
Idaho tonight.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...Winter Weather Advisory until 11 AM MST this morning
Bitterroot/Sapphire Mountains.
Winter Weather Advisory until 11 AM MST this morning
Potomac/Seeley Lake Region.
Winter Weather Advisory until 11 AM MST Friday Butte/Blackfoot
Region.
Winter Weather Advisory until 11 AM MST this morning Lower Clark
Fork Region.
Winter Weather Advisory until 11 AM MST this morning
Missoula/Bitterroot Valleys.
ID...Winter Weather Advisory until 10 AM PST this morning Northern
Clearwater Mountains...Southern Clearwater Mountains.
Winter Weather Advisory until 11 AM MST this morning Eastern
Lemhi County...Western Lemhi County.
Winter Weather Advisory until 10 AM PST this morning Lower Hells
Canyon/Salmon River Region...Orofino/Grangeville Region.
&&In the hours before
Local storm report, Dec 15, 4:40 AM MST, 1 hour 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
440 AM MST THU DEC 15 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0440 AM HEAVY SNOW 3 E FLORENCE 46.63N 114.01W
12/15/2016 M4.1 INCH RAVALLI MT NWS EMPLOYEE
.
&&
NWS MISSOULA MT
IRIS SYSTEMLocal storm report, Dec 15, 5:12 AM MST, 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
512 AM MST THU DEC 15 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0512 AM HEAVY SNOW 6 NW MISSOULA 46.92N 114.09W
12/15/2016 M3.2 INCH MISSOULA MT OFFICIAL NWS OBS
.
&&
NWS MISSOULA MT
IRIS SYSTEMLocal storm report, Dec 15, 5:35 AM MST, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
535 AM MST THU DEC 15 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0535 AM HEAVY SNOW 2 E FLORENCE 46.63N 114.04W
12/15/2016 E4.5 INCH RAVALLI MT PUBLIC
.
&&
NWS MISSOULA MT
IRIS SYSTEMThe office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 3:14 PM MST | Winter Storm Warning | MSO | Deer Lodge, Granite, Powell, Silver Bow | 31 hr |
Nearby
Winter Storm Warnings in Montana, 2016Every winter storm warning in 2016
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.