Alert archive / Montana / Winter Storm Warnings in 2017
Winter Storm Warning 1, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Jan 1, 2017, 4:57 AM MST for 7 counties in Montana. It took effect at Jan 1, 2017, 11:00 AM MST. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 1, 2017, 4:57 AM MST (11:57 UTC)
- In effect from
- Jan 1, 2017, 11:00 AM MST
- Expired
- Jan 1, 2017, 6:27 PM MST
- In force
- 7 hr
- Issued by
- NWS Missoula, MT
Counties Deer Lodge County, MT, Granite County, MT, Lake County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 66 km from the middle of the area, began a volume at 11:58 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
Great_falls, MT (KTFX), launched 00:00Z, 12.0 hours before the alert went out and 238 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
- 1999 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 247 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
114 WWUS45 KMSO 011157 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 457 AM MST SUN JAN 1 2017 MTZ043-012200- /O.CAN.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.NEW.KMSO.WS.W.0001.170101T1800Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 457 AM MST SUN JAN 1 2017 ...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: WHILE SNOW WILL BEGIN THIS MORNING, VISIBILITY REDUCTIONS DUE TO WIND AND BLOWING SNOW ARE EXPECTED TO START THIS AFTERNOON AND CONTINUE INTO MONDAY. A PERIOD OF WHITEOUT CONDITIONS WILL BE POSSIBLE LOCALLY THIS AFTERNOON AND EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 1 TO 3 INCHES FOR LOWER ELEVATIONS AND 4 TO 6 INCHES IN HIGHER TERRAIN. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS OVER 40 MPH SUNDAY AFTERNOON AND EVENING. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH $$ MTZ007-012200- /O.CAN.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.NEW.KMSO.WS.W.0001.170101T1800Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 457 AM MST SUN JAN 1 2017 ...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: WHILE SNOW WILL BEGIN AROUND MID DAY, VISIBILITY REDUCTIONS DUE TO WIND AND BLOWING SNOW ARE EXPECTED TO START THIS AFTERNOON AND CONTINUE INTO MONDAY. A PERIOD OF WHITEOUT CONDITIONS WILL BE POSSIBLE LOCALLY THIS AFTERNOON AND EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR THE LOWER ELEVATIONS AND HOMESTAKE PASS. 5 TO 7 INCHES IN THE HIGHER TERRAIN AND FOR MACDONALD PASS. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS. * LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS $$ MTZ006-012200- /O.CAN.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.NEW.KMSO.WS.W.0001.170101T1800Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 457 AM MST SUN JAN 1 2017 ...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM MST MONDAY FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * IMPACTS/TIMING: WHILE SNOW WILL BEGIN AROUND MID DAY, VISIBILITY REDUCTIONS DUE TO WIND AND BLOWING SNOW ARE EXPECTED TO START LATE THIS AFTERNOON AND CONTINUE INTO MONDAY. A PERIOD OF WHITEOUT CONDITIONS WILL BE POSSIBLE LOCALLY THIS EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR LOWER ELEVATIONS. 4 TO 6 INCHES OVER LOLO PASS. 2 TO 4 INCHES OVER LOST TRAIL PASS. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS. $$ MTZ005-012200- /O.CAN.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.NEW.KMSO.WS.W.0001.170101T1800Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 457 AM MST SUN JAN 1 2017 ...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM MST MONDAY FOR BITTERROOT VALLEY AND MISSOULA... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON FOR BITTERROOT VALLEY AND MISSOULA... * IMPACTS/TIMING: WHILE SNOW WILL BEGIN THIS MORNING, VISIBILITY REDUCTIONS DUE TO WIND AND BLOWING SNOW ARE EXPECTED TO START THIS AFTERNOON AND CONTINUE INTO MONDAY. A PERIOD OF WHITEOUT CONDITIONS WILL BE POSSIBLE LOCALLY THIS AFTERNOON AND EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS NEARER TO HELLGATE CANYON. $$ MTZ001-012200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 457 AM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND AND BLOWING SNOW WILL CAUSE LOW VISIBILITY THIS MORNING, CONTINUING INTO MONDAY. WHITEOUT CONDITIONS WILL BE POSSIBLE LOCALLY THROUGH THIS AFTERNOON. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DURING THIS TIME. * SNOW ACCUMULATIONS: 2 TO 4 INCHES IN THE LOWER ELEVATIONS AND 7 TO 10 INCHES IN HIGHER TERRAIN. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS TO 40 MPH. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND HIGHWAY 93 EUREKA TO WHITEFISH $$ MTZ002-012200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 457 AM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND AND BLOWING SNOW WILL CAUSE LOW VISIBILITY THIS MORNING, CONTINUING INTO MONDAY. WHITEOUT CONDITIONS WILL BE POSSIBLE LOCALLY THROUGH THIS AFTERNOON. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DURING THIS TIME. * SNOW ACCUMULATIONS: 2 TO 4 INCHES AT LOWER ELEVATIONS AND 6 TO 8 INCHES AT MARIAS PASS. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS OVER 40 MPH SUNDAY MORNING AROUND BADROCK CANYON. * LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE $$ MTZ003-012200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 457 AM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND AND BLOWING SNOW WILL CAUSE LOW VISIBILITY THIS MORNING, CONTINUING INTO MONDAY. WHITEOUT CONDITIONS WILL BE POSSIBLE LOCALLY THROUGH THIS AFTERNOON. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DURING THIS TIME. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR LOWER ELEVATIONS AND 5 TO 8 INCHES IN HIGHER TERRAIN. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS OVER 40 MPH SUNDAY MORNING. LOCALLY STRONGER DOWNSLOPING WINDS MAY ALSO IMPACT HIGHWAY 35 ALONG FLATHEAD LAKE. * LOCATIONS IMPACTED INCLUDE: FLATHEAD LAKE, FLATHEAD VALLEY, MISSION VALLEY, AND POLSON $$ MTZ004-012200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ 457 AM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... * IMPACTS/TIMING: SNOW, WIND AND BLOWING SNOW WILL CAUSE LOW VISIBILITY THIS MORNING, CONTINUING INTO MONDAY. WHITEOUT CONDITIONS WILL BE POSSIBLE LOCALLY THROUGH THIS AFTERNOON. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR LOWER ELEVATIONS AND 5 TO 8 INCHES FOR HIGHER TERRAIN INCLUDING LOOKOUT PASS. * WINDS: EASTERLY 15 TO 25 MPH WITH GUSTS OVER 30 MPH SUNDAY MORNING. * LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 LOOKOUT PASS TO HAUGAN $$ IDZ005>008-012200- /O.CON.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ 357 AM PST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... * IMPACTS/TIMING: A COMBINATION OF SNOW AND BLUSTERY WINDS WILL CAUSE LOCALIZED AREAS OF BLOWING SNOW...LOW VISIBILITIES...AND DIFFICULT TRAVEL CONDITIONS SUNDAY MORNING THROUGH MONDAY MORNING. TEMPERATURES WILL DROP RAPIDLY SUNDAY NIGHT WITH WIND CHILLS TO 20 DEGREES BELOW ZERO POSSIBLE. * SNOW ACCUMULATIONS: 2 TO 5 INCHES FOR LOWER ELEVATIONS. 6 TO 12 INCHES FOR HIGHER TERRAIN IN CLEARWATER COUNTY AND THE NORTHERN HALF OF IDAHO COUNTY. * 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 95 SLATE CREEK TO RIGGINS, AND WHITE BIRD GRADE $$
3 follow-up statements
810 WWUS45 KMSO 011930 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1230 PM MST SUN JAN 1 2017 MTZ001-022200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 1230 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: BLOWING SNOW WILL CONTINUE TO CAUSE LOW VISIBILITY FOR THOSE TRAVELING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DURING THIS TIME. * SNOW ACCUMULATIONS: AN ADDITIONAL TRACE TO 2 INCHES THROUGH THIS EVENING BEFORE DIMINISHING. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS TO 40 MPH. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND HIGHWAY 93 EUREKA TO WHITEFISH $$ MTZ002-022200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 1230 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CONTINUE TO CAUSE LOW VISIBILITY FOR THOSE TRAVELING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DURING THIS TIME. * SNOW ACCUMULATIONS: 2 TO 4 INCHES AT LOWER ELEVATIONS AND 6 TO 8 INCHES AT MARIAS PASS. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS OVER 40 MPH. * LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE $$ MTZ003-022200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 1230 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CONTINUE TO CAUSE LOW VISIBILITY FOR THOSE TRAVELING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DURING THIS TIME. * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 3 INCHES THROUGH THIS EVENING BEFORE DIMINISHING. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS OVER 40 MPH. LOCALLY STRONGER DOWNSLOPING WINDS TO IMPACT HIGHWAY 35 ALONG FLATHEAD LAKE. * LOCATIONS IMPACTED INCLUDE: FLATHEAD LAKE, FLATHEAD VALLEY, MISSION VALLEY, AND POLSON $$ MTZ043-022200- /O.CON.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 1230 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE A PERIOD OF NEAR-WHITEOUT CONDITIONS THROUGH THIS EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 1 TO 3 INCHES FOR LOWER ELEVATIONS AND 4 TO 6 INCHES IN HIGHER TERRAIN. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS OVER 40 MPH. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH $$ MTZ007-022200- /O.CON.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 1230 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE A PERIOD OF NEAR-WHITEOUT CONDITIONS THROUGH THIS EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR THE LOWER ELEVATIONS AND HOMESTAKE PASS. 5 TO 7 INCHES IN THE HIGHER TERRAIN AND FOR MACDONALD PASS. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS LIKELY. * LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS $$ MTZ006-022200- /O.CON.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 1230 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE A PERIOD OF NEAR-WHITEOUT CONDITIONS THROUGH THIS EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR LOWER ELEVATIONS. 4 TO 6 INCHES OVER LOLO PASS. 2 TO 4 INCHES OVER LOST TRAIL PASS. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS LIKELY. $$ MTZ005-022200- /O.CON.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 1230 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY FOR BITTERROOT VALLEY AND MISSOULA... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON FOR BITTERROOT VALLEY AND MISSOULA... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS THROUGH LATER THIS EVENING. LOCALIZED NEAR-WHITEOUT CONDITIONS ARE LIKELY FROM BLOWING SNOW. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS NEARER TO HELLGATE CANYON. $$ MTZ004-022200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ 1230 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS THROUGH LATER THIS EVENING. LOCALIZED NEAR-WHITEOUT CONDITIONS ARE LIKELY FROM BLOWING SNOW. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR LOWER ELEVATIONS AND 5 TO 8 INCHES FOR HIGHER TERRAIN INCLUDING LOOKOUT PASS. * WINDS: EASTERLY 15 TO 25 MPH WITH GUSTS OVER 30 MPH. * LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 LOOKOUT PASS TO HAUGAN $$ IDZ005>008-021800- /O.CON.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ 1130 AM PST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... * IMPACTS/TIMING: A COMBINATION OF SNOW AND BLUSTERY WINDS WILL CAUSE LOCALIZED AREAS OF BLOWING SNOW...LOW VISIBILITIES...AND DIFFICULT TRAVEL CONDITIONS THROUGH MONDAY MORNING. TEMPERATURES WILL DROP RAPIDLY WITH WIND CHILLS TO 20 DEGREES BELOW ZERO POSSIBLE THROUGH MONDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 5 INCHES FOR LOWER ELEVATIONS. 6 TO 12 INCHES FOR HIGHER TERRAIN IN CLEARWATER COUNTY AND THE NORTHERN HALF OF IDAHO COUNTY. * LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO HEADQUARTERS, PIERCE, DIXIE, ELK CITY, HIGHWAY 12 LOWELL TO LOLO PASS, CAMAS PRAIRIE, GRANGEVILLE AND VICINITY, GREER GRADE, HIGHWAY 95 SLATE CREEK TO RIGGINS, AND WHITE BIRD GRADE $$
595 WWUS45 KMSO 012047 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 147 PM MST SUN JAN 1 2017 IDZ007-008-012200- /O.CAN.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ 1247 PM PST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER WEATHER ADVISORY. $$ MTZ001-022200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 147 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: BLOWING SNOW WILL CONTINUE TO CAUSE LOW VISIBILITY FOR THOSE TRAVELING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DURING THIS TIME. * SNOW ACCUMULATIONS: AN ADDITIONAL TRACE TO 2 INCHES THROUGH THIS EVENING BEFORE DIMINISHING. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS TO 40 MPH. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND HIGHWAY 93 EUREKA TO WHITEFISH $$ MTZ002-022200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 147 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CONTINUE TO CAUSE LOW VISIBILITY FOR THOSE TRAVELING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DURING THIS TIME. * SNOW ACCUMULATIONS: 2 TO 4 INCHES AT LOWER ELEVATIONS AND 6 TO 8 INCHES AT MARIAS PASS. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS OVER 40 MPH. * LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE $$ MTZ003-022200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 147 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CONTINUE TO CAUSE LOW VISIBILITY FOR THOSE TRAVELING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. THERE IS ALSO A POTENTIAL FOR POWER OUTAGES DURING THIS TIME. * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 3 INCHES THROUGH THIS EVENING BEFORE DIMINISHING. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS OVER 40 MPH. LOCALLY STRONGER DOWNSLOPING WINDS TO IMPACT HIGHWAY 35 ALONG FLATHEAD LAKE. * LOCATIONS IMPACTED INCLUDE: FLATHEAD LAKE, FLATHEAD VALLEY, MISSION VALLEY, AND POLSON $$ MTZ043-022200- /O.CON.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 147 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE A PERIOD OF NEAR-WHITEOUT CONDITIONS THROUGH THIS EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 1 TO 3 INCHES FOR LOWER ELEVATIONS AND 4 TO 6 INCHES IN HIGHER TERRAIN. * WINDS: EASTERLY 20 TO 30 MPH WITH GUSTS OVER 40 MPH. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH $$ MTZ007-022200- /O.CON.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 147 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE A PERIOD OF NEAR-WHITEOUT CONDITIONS THROUGH THIS EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR THE LOWER ELEVATIONS AND HOMESTAKE PASS. 5 TO 7 INCHES IN THE HIGHER TERRAIN AND FOR MACDONALD PASS. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS LIKELY. * LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS $$ MTZ006-022200- /O.CON.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 147 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE A PERIOD OF NEAR-WHITEOUT CONDITIONS THROUGH THIS EVENING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR LOWER ELEVATIONS. 4 TO 6 INCHES OVER LOLO PASS. 2 TO 4 INCHES OVER LOST TRAIL PASS. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS LIKELY. $$ MTZ005-022200- /O.CON.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 147 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY FOR BITTERROOT VALLEY AND MISSOULA... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON FOR BITTERROOT VALLEY AND MISSOULA... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS THROUGH LATER THIS EVENING. LOCALIZED NEAR-WHITEOUT CONDITIONS ARE LIKELY FROM BLOWING SNOW. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS NEARER TO HELLGATE CANYON. $$ MTZ004-022200- /O.CON.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ 147 PM MST SUN JAN 1 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST MONDAY... * IMPACTS/TIMING: SNOW, WIND, AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS THROUGH LATER THIS EVENING. LOCALIZED NEAR-WHITEOUT CONDITIONS ARE LIKELY FROM BLOWING SNOW. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 4 INCHES FOR LOWER ELEVATIONS AND 5 TO 8 INCHES FOR HIGHER TERRAIN INCLUDING LOOKOUT PASS. * WINDS: EASTERLY 15 TO 25 MPH WITH GUSTS OVER 30 MPH. * LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 LOOKOUT PASS TO HAUGAN $$ IDZ005-006-021800- /O.CON.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ 1247 PM PST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... * IMPACTS/TIMING: A COMBINATION OF SNOW AND BLUSTERY WINDS WILL CAUSE LOCALIZED AREAS OF BLOWING SNOW...LOW VISIBILITIES...AND DIFFICULT TRAVEL CONDITIONS THROUGH MONDAY MORNING. TEMPERATURES WILL DROP RAPIDLY WITH WIND CHILLS TO 20 DEGREES BELOW ZERO POSSIBLE THROUGH MONDAY MORNING. * SNOW ACCUMULATIONS: 2 TO 5 INCHES FOR LOWER ELEVATIONS. 6 TO 12 INCHES FOR HIGHER TERRAIN IN CLEARWATER COUNTY AND THE NORTHERN HALF OF IDAHO COUNTY. * LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO HEADQUARTERS, PIERCE, DIXIE, ELK CITY, AND HIGHWAY 12 LOWELL TO LOLO PASS $$
175 WWUS45 KMSO 020127 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 627 PM MST SUN JAN 1 2017 MTZ001-030130- /O.CAN.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.EXA.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 627 PM MST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. * IMPACTS/TIMING: SLICK ROAD CONDITIONS, LOW WIND CHILL READINGS AND LOCALIZED BLOWING SNOW WILL CONTINUE TO IMPACT THE AREA THROUGH MONDAY MORNING. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: LITTLE TO NO NEW SNOW ACCUMULATIONS. * WINDS: EASTERLY 10 TO 15 MPH WITH GUSTS TO 25 MPH. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD, AND HIGHWAY 93 EUREKA TO WHITEFISH $$ MTZ002-030130- /O.CAN.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.EXA.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 627 PM MST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. * IMPACTS/TIMING: SLICK ROAD CONDITIONS, LOW WIND CHILL READINGS AND LOCALIZED BLOWING SNOW WILL CONTINUE TO IMPACT THE AREA THROUGH MONDAY MORNING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 1 TO 2 INCHES OF NEW SNOW MAINLY ALONG THE DIVIDE. * WINDS: EASTERLY 10 TO 15 MPH WITH GUSTS OVER 25 MPH. * LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83 BIGFORK TO SWAN LAKE, MARIAS PASS, AND POLEBRIDGE $$ MTZ003-030130- /O.CAN.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.EXA.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 627 PM MST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. * IMPACTS/TIMING: SLICK ROAD CONDITIONS, LOW WIND CHILL READINGS AND LOCALIZED BLOWING SNOW WILL CONTINUE TO IMPACT THE AREA THROUGH MONDAY MORNING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 20 TO 30 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: LITTLE TO NO NEW SNOW ACCUMULATIONS. * WINDS: NORTHERLY 10 TO 15 MPH WITH GUSTS OVER 25 MPH. LOCALLY STRONGER NEAR BADROCK CANYON AND DOWNSLOPING WINDS IMPACTING HIGHWAY 35 ALONG FLATHEAD LAKE. * LOCATIONS IMPACTED INCLUDE: FLATHEAD LAKE, FLATHEAD VALLEY, MISSION VALLEY, AND POLSON $$ MTZ043-030130- /O.CAN.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.EXA.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 627 PM MST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. * IMPACTS/TIMING: SLICK ROAD CONDITIONS, LOW WIND CHILL READINGS AND LOCALIZED BLOWING SNOW WILL CONTINUE TO IMPACT THE AREA THROUGH MONDAY MORNING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: LITTLE TO NO NEW SNOW ACCUMULATIONS. * WINDS: EASTERLY 10 TO 15 MPH WITH GUSTS TO 25 MPH. * LOCATIONS IMPACTED INCLUDE: HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH $$ MTZ007-030130- /O.CAN.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.EXA.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 627 PM MST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. * IMPACTS/TIMING: LIGHT SNOW, SLICK ROAD CONDITIONS, LOW WIND CHILL READINGS AND LOCALIZED BLOWING SNOW WILL CONTINUE TO IMPACT THE AREA THROUGH MONDAY MORNING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 1 TO 3 INCHES. * WINDS: EASTERLY 10 TO 20 MPH WITH HIGHER GUSTS LIKELY. * LOCATIONS IMPACTED INCLUDE: BUTTE, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS, AND MACDONALD PASS $$ MTZ006-030130- /O.CAN.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.EXA.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 627 PM MST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. * IMPACTS/TIMING: SLICK ROAD CONDITIONS, LOW WIND CHILL READINGS AND LOCALIZED BLOWING SNOW WILL CONTINUE TO IMPACT THE AREA THROUGH MONDAY MORNING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 30 TO 40 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 1 TO 3 INCHES. * WINDS: EASTERLY 20 TO 30 MPH WITH HIGHER GUSTS LIKELY. $$ MTZ005-030130- /O.CAN.KMSO.WS.W.0001.000000T0000Z-170103T0000Z/ /O.EXA.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ /O.CON.KMSO.WC.A.0001.170103T0000Z-170104T0000Z/ 627 PM MST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY FOR BITTERROOT VALLEY AND MISSOULA... ...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON FOR BITTERROOT VALLEY AND MISSOULA... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. * IMPACTS/TIMING: SLICK ROAD CONDITIONS, LOW WIND CHILL READINGS AND LOCALIZED BLOWING SNOW WILL CONTINUE TO IMPACT THE AREA THROUGH MONDAY MORNING. TEMPERATURES WILL DECREASE QUICKLY WITH WINDS CONTINUING THROUGH MONDAY NIGHT. DANGEROUS WIND CHILLS AS LOW AS 20 TO 30 DEGREES BELOW ZERO WILL BE POSSIBLE BY MONDAY NIGHT INTO TUESDAY MORNING. * SNOW ACCUMULATIONS: 1 TO 3 INCHES SOUTHERN PART OF THE BITTERROOT VALLEY THIS EVENING. * WINDS: EASTERLY 10 TO 20 MPH WITH HIGHER GUSTS NEAR HELLGATE CANYON. $$ MTZ004-021800- /O.CAN.KMSO.WS.W.0014.000000T0000Z-170103T0000Z/ /O.EXA.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ 627 PM MST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. * IMPACTS/TIMING: A COMBINATION OF SNOW AND BLUSTERY WINDS WILL CAUSE LOCALIZED AREAS OF BLOWING SNOW...LOW VISIBILITIES...AND DIFFICULT TRAVEL CONDITIONS THROUGH MONDAY MORNING. TEMPERATURES WILL DROP RAPIDLY WITH WIND CHILLS TO 10 DEGREES BELOW ZERO POSSIBLE THROUGH MONDAY MORNING. * SNOW ACCUMULATIONS: UP TO 1 INCH BY LOOKOUT PASS. * LOCATIONS IMPACTED INCLUDE: EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY 200 TROUT CREEK TO HERON, AND I- 90 LOOKOUT PASS TO HAUGAN $$ IDZ005-006-021800- /O.CON.KMSO.WW.Y.0071.000000T0000Z-170102T1800Z/ 527 PM PST SUN JAN 1 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... * IMPACTS/TIMING: A COMBINATION OF SNOW AND BLUSTERY WINDS WILL CAUSE LOCALIZED AREAS OF BLOWING SNOW...LOW VISIBILITIES...AND DIFFICULT TRAVEL CONDITIONS THROUGH MONDAY MORNING. TEMPERATURES WILL DROP RAPIDLY WITH WIND CHILLS TO 10 DEGREES BELOW ZERO POSSIBLE THROUGH MONDAY MORNING. * SNOW ACCUMULATIONS: ADDITIONAL 1 TO 3 INCHES TONIGHT. * LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO HEADQUARTERS, PIERCE, DIXIE, ELK CITY, AND HIGHWAY 12 LOWELL TO LOLO PASS $$
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 Jan 1, 4:10 AM MST, 47 minutes earlier.
Area forecast discussion, Jan 1, 4:10 AM MST, 47 minutes before
Area Forecast Discussion
National Weather Service Missoula MT
410 AM MST Sun Jan 1 2017
...Snow, blowing snow and difficult travel today...
...Dangerous wind chills Monday into Tuesday morning...
.DISCUSSION...A strong arctic front is still poised to affect
western Montana and central Idaho with snow, blowing snow and wind
today. The entire system has been delayed by roughly 6 hours,
however the arctic front is now crossing the Canadian border and
should begin to move into northwest Montana this morning. Ahead of
the front, widespread snow has developed for northwest Montana and
the Idaho panhandle. As the arctic front pushes southwestward
through the day today, this area of snowfall will also shift south
with time. Because of the delayed arrival of the arctic front, a
bit more snow may accumulate across northwest Montana than
previously forecasted. However, the best snow accumulations are
still anticipated through central Idaho, and along the
Idaho/western Montana border where 4 to 8 inches of snow, higher
amounts in the terrain, are expected.
Of bigger concern will be the wind, which is expected to interact
with the snowfall occurring ahead of the front to cause periods
of blowing snow and low visibility today into tonight. Blowing
snow is expected to pose the largest problem across northwest
Montana where winds gusting up to 40 mph, possibly higher through
terrain gaps, may cause periods of whiteout conditions later this
morning into the afternoon. It still looks possible that a
mountain wave may develop off the Mission Mountains over the
east side of Flathead Lake, though the timing of this looks more
likely this afternoon into the early evening hours. Tree and
powerline damage will be possible. The arctic front is expected
to arrive into west-central/southwest Montana this afternoon and
into central Idaho this evening. As this occurs, blowing snow and
low visibilities will become a problem, making travel across the
area difficult. The previously issued winter weather products
remain in effect, though the timing has been slowed down for
southwest and west-central Montana due to the slower progression
of the arctic front.
By Monday into Tuesday, snowfall will largely taper off across the
region, though some light snowfall will be possible, especially
through central Idaho. As much colder air continues to spill into
the region, the concern for this time frame will be for dangerous
wind chills, especially across western Montana. Values as cold as
20 to 40 below zero will be possible by Tuesday morning. Frostbite
can occur on exposed skin in as little 10 to 30 minutes under
these conditions, which is something to keep in mind for those who
have to be out and about Tuesday morning.
Winds will gradually diminish Tuesday afternoon and with
some clearing overnight, it will allow temperatures to rapidly
cool overnight. Wednesday or Thursday morning still looks to be
the coldest day of this week but there is still quite a bit of
uncertainty in how much cloud cover there will be. There is no
doubt we will be very cold, but a little cloud cover could help
temperatures from becoming extremely cold. With a very cold
airmass in place, temperatures will be very slow to moderate, and
we should see ice jams developing around the Northern Rockies.
&&
.AVIATION...Widespread snow has developed this morning across
northwest Montana and central Idaho ahead of an arctic cold
front. This area of snowfall will gradually shift southward into
west-central/southwest Montana through the day as the arctic
front moves into the region. Expect widespread low ceilings and
visibility reductions due to this area of snowfall. KGPI will
likely see snow continue through around 01/1500z. KMSO will likely
see snow develop around 01/1200z and will continue through
roughly 01/2200z. KBTM should expect snowfall between roughly
01/1800z and 02/0000z and KSMN will see its best shot of snowfall
between 01/1400z and 01/1800z.
The arctic front is anticipated to pack some gusty northeast to
east winds as it moves into the region. The strongest winds are
anticipated across northwest Montana, particularly through favored
terrain gaps (such as Badrock Canyon) and along the west side of
the Mission Mountains. Gusts up 45 kts will be possible in these
areas. Locations further south into west-central and southwest
Montana may see winds gusting up to 35 kts. A big concern with the
winds will be a period of very low visibility due to blowing and
drifting snow. Current forecast models indicate the wind and
blowing snow will enter into KGPI around 01/1400z, into KMSO
around 01/2000z, into KBTM around 01/2200z and into KSMN around
02/0300z.
Snow will largely decrease tonight into Monday, though central
Idaho may continue to see some light snow fall. Gusty winds will
continue into well into Monday.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...Winter Storm Warning until 5 PM MST Monday Butte/Blackfoot
Region.
Wind Chill Watch from Monday afternoon through Tuesday afternoon
Bitterroot/Sapphire Mountains...Butte/Blackfoot Region...
Flathead/Mission Valleys...Kootenai/Cabinet Region...
Missoula/Bitterroot Valleys...Potomac/Seeley Lake Region...
West Glacier Region.
Winter Storm Warning until 5 PM MST Monday Bitterroot/Sapphire
Mountains.
Winter Storm Warning until 5 PM MST Monday Lower Clark Fork
Region.
Winter Storm Warning until 5 PM MST Monday Missoula/Bitterroot
Valleys.
Winter Storm Warning until 5 PM MST Monday Flathead/Mission
Valleys.
Winter Storm Warning until 5 PM MST Monday West Glacier Region.
Winter Storm Warning until 5 PM MST Monday Kootenai/Cabinet
Region.
Winter Storm Warning until 5 PM MST Monday Potomac/Seeley Lake
Region.
ID...Winter Weather Advisory until 10 AM PST Monday Lower Hells
Canyon/Salmon River Region...Northern Clearwater
Mountains...Orofino/Grangeville Region...Southern
Clearwater Mountains.
&&Nearby
Winter Storm Warnings in Montana, 2017Every winter storm warning in 2017
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.