Alert archive / Montana / Winter Storm Warnings in 2011
Winter Storm Warning 17, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Nov 10, 2011, 12:24 PM MST for 8 counties in Montana; Clearwater County, Idaho County, Lemhi County, Idaho. It took effect at Nov 11, 2011, 8:00 PM MST. It was in force for 13 hr. 1 report 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
- Nov 10, 2011, 12:24 PM MST (19:24 UTC)
- In effect from
- Nov 11, 2011, 8:00 PM MST
- Expired
- Nov 12, 2011, 9:24 AM MST
- In force
- 13 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID, Lemhi County, ID, Flathead County, MT, Granite County, MT, Lake County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 39 km from the middle of the area, began a volume at 19:29 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 |
|---|---|---|---|
| Nov 12, 9:00 AM MST | SNOW 9 | 10 Nw Saltese, MT | LOOKOUT PASS SKI AREA |
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, 7.4 hours before the alert went out and 186 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
- 1520 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 202 m²/s²
- 0-3 km storm-relative helicity
- 310 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
273 WWUS45 KMSO 101924 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1224 PM MST THU NOV 10 2011 MTZ004-111200- /O.UPG.KMSO.WS.A.0008.111112T0100Z-111113T0000Z/ /O.NEW.KMSO.WS.W.0017.111112T0100Z-111112T1800Z/ LOWER CLARK FORK REGION- 1224 PM MST THU NOV 10 2011 ...WINTER STORM WARNING IN EFFECT FROM 6 PM FRIDAY TO 11 AM MST SATURDAY ABOVE 4000 FEET FOR...EVARO HILL...LOOKOUT PASS... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND WIND ABOVE 4000 FEET...WHICH IS IN EFFECT FROM 6 PM FRIDAY TO 11 AM MST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS...PARTICULARLY I-90 OVER LOOKOUT PASS AND HIGHWAY 93 OVER EVARO HILL DURING THIS TIME FRAME. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET INCLUDING OVER EVARO HILL AND LOOKOUT PASS. 1 TO 2 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 20 TO 25 MPH WITH GUSTS TO 35 MPH...MAINLY IN THE HIGHER TERRAIN AND OVER LOOKOUT PASS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ002-111200- /O.UPG.KMSO.WS.A.0008.111112T0100Z-111113T0000Z/ /O.NEW.KMSO.WS.W.0017.111112T0100Z-111112T1800Z/ WEST GLACIER REGION- 1224 PM MST THU NOV 10 2011 ...WINTER STORM WARNING IN EFFECT FROM 6 PM FRIDAY TO 11 AM MST SATURDAY ABOVE 4000 FEET FOR...MARIAS PASS... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND WIND ABOVE 4000 FEET...WHICH IS IN EFFECT FROM 6 PM FRIDAY TO 11 AM MST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS OVER HIGHWAY 2/MARIAS PASS DURING THIS TIME FRAME. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET INCLUDING OVER MARIAS PASS. 2 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 25 TO 30 MPH WITH GUSTS TO 40 MPH...MAINLY IN THE HIGHER TERRAIN AND OVER MARIAS PASS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ005-006-MTZ006-111200- /O.UPG.KMSO.WS.A.0008.111112T0100Z-111113T0000Z/ /O.NEW.KMSO.WS.W.0017.111112T0300Z-111113T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- BITTERROOT/SAPPHIRE MOUNTAINS- 1224 PM MST THU NOV 10 2011 /1124 AM PST THU NOV 10 2011/ ...WINTER STORM WARNING IN EFFECT FROM 8 PM MST /7 PM PST/ FRIDAY TO 5 PM MST /4 PM PST/ SATURDAY ABOVE 4000 FEET... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND WIND ABOVE 4000 FEET...WHICH IS IN EFFECT FROM 8 PM MST /7 PM PST/ FRIDAY TO 5 PM MST /4 PM PST/ SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS...PARTICULARLY HIGHWAY 12 OVER LOLO PASS AND HIGHWAY 93 OVER LOST TRAIL PASS DURING THIS TIME FRAME. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET INCLUDING OVER LOLO AND LOST TRAIL PASSES. 1 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 20 TO 25 MPH WITH GUSTS TO 35 MPH...MAINLY IN THE HIGHER TERRAIN AND OVER LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ043-111200- /O.UPG.KMSO.WS.A.0008.111112T0100Z-111113T0000Z/ /O.NEW.KMSO.WS.W.0017.111112T0100Z-111112T1800Z/ POTOMAC/SEELEY LAKE REGION- 1224 PM MST THU NOV 10 2011 ...WINTER STORM WARNING IN EFFECT FROM 6 PM FRIDAY TO 11 AM MST SATURDAY ABOVE 4000 FEET FOR...HIGHWAY 83 SEELEY LAKE TO CONDON... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW ABOVE 4000 FEET...WHICH IS IN EFFECT FROM 6 PM FRIDAY TO 11 AM MST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS...PARTICULARLY OVER HIGHWAY 83 BETWEEN SEELEY LAKE AND CONDON DURING THIS TIME FRAME. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND ON ROADWAYS ABOVE 4000 FEET...1 TO 3 INCHES POSSIBLE BELOW 4000 FEET. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-111200- /O.NEW.KMSO.WW.Y.0061.111112T0100Z-111112T1800Z/ KOOTENAI/CABINET REGION- 1224 PM MST THU NOV 10 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM FRIDAY TO 11 AM MST SATURDAY ABOVE 3000 FEET... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW ABOVE 3000 FEET...WHICH IS IN EFFECT FROM 6 PM FRIDAY TO 11 AM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW WILL DEVELOP LATE FRIDAY NIGHT AND PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME HAZARDOUS...ESPECIALLY ON HIGHWAY 2 BETWEEN LIBBY AND KALISPELL AND ALONG HIGHWAY 93 BETWEEN EUREKA AND WHITEFISH. * SNOW ACCUMULATIONS: 3 TO 5 INCHES...LOCALLY UP TO 6 INCHES. ELEVATIONS BELOW 3000 FEET WILL SEE 1 TO 2 INCHES OF SNOW. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 93 EUREKA TO WHITEFISH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
6 follow-up statements
105 WWUS45 KMSO 111057 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 357 AM MST FRI NOV 11 2011 MTZ004-112200- /O.CON.KMSO.WS.W.0017.111112T0100Z-111112T1800Z/ LOWER CLARK FORK REGION- 357 AM MST FRI NOV 11 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY ABOVE 4000 FEET FOR...EVARO HILL...LOOKOUT PASS... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS...PARTICULARLY I-90 OVER LOOKOUT PASS AND HIGHWAY 93 OVER EVARO HILL DURING THIS TIME FRAME. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET INCLUDING OVER EVARO HILL AND LOOKOUT PASS. 1 TO 2 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 20 TO 25 MPH WITH GUSTS TO 35 MPH...MAINLY IN THE HIGHER TERRAIN AND OVER LOOKOUT PASS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ002-112200- /O.CON.KMSO.WS.W.0017.111112T0100Z-111112T1800Z/ WEST GLACIER REGION- 357 AM MST FRI NOV 11 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY ABOVE 4000 FEET FOR...MARIAS PASS... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS OVER HIGHWAY 2/MARIAS PASS DURING THIS TIME FRAME. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET INCLUDING OVER MARIAS PASS. 2 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 25 TO 30 MPH WITH GUSTS TO 40 MPH...MAINLY IN THE HIGHER TERRAIN AND OVER MARIAS PASS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ005-006-MTZ006-112200- /O.CON.KMSO.WS.W.0017.111112T0300Z-111113T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- BITTERROOT/SAPPHIRE MOUNTAINS- 357 AM MST FRI NOV 11 2011 /257 AM PST FRI NOV 11 2011/ ...WINTER STORM WARNING REMAINS IN EFFECT FROM 8 PM MST /7 PM PST/ THIS EVENING TO 5 PM MST /4 PM PST/ SATURDAY ABOVE 4000 FEET... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM 8 PM MST /7 PM PST/ THIS EVENING TO 5 PM MST /4 PM PST/ SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS...PARTICULARLY HIGHWAY 12 OVER LOLO PASS AND HIGHWAY 93 OVER LOST TRAIL PASS DURING THIS TIME FRAME. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET INCLUDING OVER LOLO AND LOST TRAIL PASSES. 1 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 20 TO 25 MPH WITH GUSTS TO 35 MPH...MAINLY IN THE HIGHER TERRAIN AND OVER LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ043-112200- /O.CON.KMSO.WS.W.0017.111112T0100Z-111112T1800Z/ POTOMAC/SEELEY LAKE REGION- 357 AM MST FRI NOV 11 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY ABOVE 4000 FEET FOR...HIGHWAY 83 SEELEY LAKE TO CONDON... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS... PARTICULARLY OVER HIGHWAY 83 BETWEEN SEELEY LAKE AND CONDON DURING THIS TIME FRAME. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND ON ROADWAYS ABOVE 4000 FEET...1 TO 3 INCHES POSSIBLE BELOW 4000 FEET. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-112200- /O.CON.KMSO.WW.Y.0061.111112T0100Z-111112T1800Z/ KOOTENAI/CABINET REGION- 357 AM MST FRI NOV 11 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY ABOVE 3000 FEET... A WINTER WEATHER ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW WILL DEVELOP LATE TONIGHT AND PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME HAZARDOUS...ESPECIALLY ON HIGHWAY 2 BETWEEN LIBBY AND KALISPELL AND ALONG HIGHWAY 93 BETWEEN EUREKA AND WHITEFISH. * SNOW ACCUMULATIONS: 3 TO 5 INCHES...LOCALLY UP TO 6 INCHES. ELEVATIONS BELOW 3000 FEET WILL SEE 1 TO 2 INCHES OF SNOW. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 93 EUREKA TO WHITEFISH PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
541 WWUS45 KMSO 112110 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 210 PM MST FRI NOV 11 2011 IDZ010-121200- /O.EXB.KMSO.WS.W.0017.111112T0600Z-111113T0000Z/ EASTERN LEMHI COUNTY- 210 PM MST FRI NOV 11 2011 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST SATURDAY ABOVE 6000 FEET... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING ABOVE 6000 FEET...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS...PARTICULARLY OVER THE MOUNTAIN PASSES AND GILMORE SUMMIT DURING THIS TIME FRAME. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS OF LEMHI COUNTY SATURDAY NIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 9 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 6000 FEET INCLUDING LOST TRAIL...LEMHI... BANNOCK PASSES AND GILMORE SUMMIT BY LATE SATURDAY AFTERNOON. 1 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH...MAINLY IN THE HIGHER TERRAIN AND LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...LEMHI PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ004-121200- /O.EXT.KMSO.WS.W.0017.111112T0300Z-111112T1800Z/ LOWER CLARK FORK REGION- 210 PM MST FRI NOV 11 2011 ...WINTER STORM WARNING NOW IN EFFECT FROM 8 PM THIS EVENING TO 11 AM MST SATURDAY ABOVE 4000 FEET FOR...EVARO HILL... THE WINTER STORM WARNING ABOVE 4000 FEET IS NOW IN EFFECT FROM 8 PM THIS EVENING TO 11 AM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS...PARTICULARLY I-90 OVER LOOKOUT PASS AND HIGHWAY 93 OVER EVARO HILL. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS OF LEMHI COUNTY SATURDAY NIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 1 TO 2 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH...MAINLY IN THE HIGHER TERRAIN AND LOOKOUT PASS. && $$ MTZ002-121200- /O.EXT.KMSO.WS.W.0017.111112T0300Z-111112T1800Z/ WEST GLACIER REGION- 210 PM MST FRI NOV 11 2011 ...WINTER STORM WARNING NOW IN EFFECT FROM 8 PM THIS EVENING TO 11 AM MST SATURDAY ABOVE 4000 FEET FOR...MARIAS PASS... THE WINTER STORM WARNING ABOVE 4000 FEET IS NOW IN EFFECT FROM 8 PM THIS EVENING TO 11 AM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS OVER HIGHWAY 2/MARIAS PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS OF LEMHI COUNTY SATURDAY NIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 2 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 25 TO 30 MPH WITH GUSTS TO 40 MPH...MAINLY IN THE HIGHER TERRAIN AND MARIAS PASS. && $$ MTZ043-121200- /O.EXT.KMSO.WS.W.0017.111112T0500Z-111113T0000Z/ POTOMAC/SEELEY LAKE REGION- 210 PM MST FRI NOV 11 2011 ...WINTER STORM WARNING NOW IN EFFECT FROM 10 PM THIS EVENING TO 5 PM MST SATURDAY ABOVE 4000 FEET FOR...HIGHWAY 83 SEELEY LAKE TO CONDON... THE WINTER STORM WARNING ABOVE 4000 FEET IS NOW IN EFFECT FROM 10 PM THIS EVENING TO 5 PM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS... PARTICULARLY OVER HIGHWAY 83 BETWEEN SEELEY LAKE AND CONDON DURING THIS TIME FRAME. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS OF LEMHI COUNTY SATURDAY NIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 9 INCHES IN THE HIGHER TERRAIN AND ON ROADWAYS ABOVE 4000 FEET. 1 TO 3 INCHES ARE POSSIBLE BELOW 4000 FEET. && $$ IDZ005-006-MTZ006-121200- /O.CON.KMSO.WS.W.0017.111112T0300Z-111113T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- BITTERROOT/SAPPHIRE MOUNTAINS- 210 PM MST FRI NOV 11 2011 /110 PM PST FRI NOV 11 2011/ ...WINTER STORM WARNING REMAINS IN EFFECT FROM 8 PM MST /7 PM PST/ THIS EVENING TO 5 PM MST /4 PM PST/ SATURDAY ABOVE 4000 FEET... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM 8 PM MST /7 PM PST/ THIS EVENING TO 5 PM MST /4 PM PST/ SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME DANGEROUS...PARTICULARLY HIGHWAY 12 OVER LOLO PASS AND HIGHWAY 93 OVER LOST TRAIL PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS OF LEMHI COUNTY SATURDAY NIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 1 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH...MAINLY IN THE HIGHER TERRAIN AND OVER LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS. && $$ MTZ001-121200- /O.CON.KMSO.WW.Y.0061.111112T0100Z-111112T1800Z/ KOOTENAI/CABINET REGION- 210 PM MST FRI NOV 11 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY ABOVE 3000 FEET... A WINTER WEATHER ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST SATURDAY. * IMPACTS/TIMING: MODERATE TO HEAVY SNOW WILL DEVELOP LATE TONIGHT AND PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BECOME HAZARDOUS...ESPECIALLY ON HIGHWAY 2 BETWEEN LIBBY AND KALISPELL AND ALONG HIGHWAY 93 BETWEEN EUREKA AND WHITEFISH. * SNOW ACCUMULATIONS: 3 TO 5 INCHES...LOCALLY UP TO 6 INCHES. ELEVATIONS BELOW 3000 FEET WILL SEE 1 TO 2 INCHES OF SNOW. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 93 EUREKA TO WHITEFISH. && $$
492 WWUS45 KMSO 121158 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 458 AM MST SAT NOV 12 2011 MTZ004-121800- /O.CON.KMSO.WS.W.0017.000000T0000Z-111112T1800Z/ LOWER CLARK FORK REGION- 458 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 4000 FEET FOR...LOOKOUT PASS AND EVARO HILL... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOW SHOWERS WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL REMAIN HAZARDOUS...PARTICULARLY ON I-90 OVER LOOKOUT PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: STORM TOTAL OF 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 1 TO 2 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH... MAINLY IN THE HIGHER TERRAIN AND LOOKOUT PASS. && $$ MTZ002-121800- /O.CON.KMSO.WS.W.0017.000000T0000Z-111112T1800Z/ WEST GLACIER REGION- 458 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 4000 FEET FOR...MARIAS PASS... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOW SHOWERS WILL CONTINUE TO COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL REMAIN DIFFICULT OVER HIGHWAY 2...MAINLY FROM ESSEX TO MARIAS PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 2 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 25 TO 30 MPH WITH GUSTS TO 40 MPH...MAINLY IN THE HIGHER TERRAIN AND MARIAS PASS. && $$ IDZ005-006-MTZ006-122000- /O.CON.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- BITTERROOT/SAPPHIRE MOUNTAINS- 458 AM MST SAT NOV 12 2011 /358 AM PST SAT NOV 12 2011/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON ABOVE 4000 FEET... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON. * IMPACTS/TIMING: SNOW SHOWERS WILL CONTINUE TO COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BE DIFFICULT AT TIMES...PARTICULARLY HIGHWAY 12 OVER LOLO PASS AND HIGHWAY 93 OVER LOST TRAIL PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 8 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 1 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH... MAINLY IN THE HIGHER TERRAIN AND OVER LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ043-122000- /O.CON.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ POTOMAC/SEELEY LAKE REGION- 458 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 4000 FEET FOR...HIGHWAY 83 SEELEY LAKE TO CONDON... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL PRODUCE LOW VISIBILITY AND SLICK ROADS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE HIGHER ELEVATIONS WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 9 INCHES IN THE HIGHER TERRAIN AND ON ROADWAYS ABOVE 4000 FEET. 1 TO 3 INCHES ARE POSSIBLE BELOW 4000 FEET. && $$ IDZ010-122000- /O.CON.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ EASTERN LEMHI COUNTY- 458 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 6000 FEET... A WINTER STORM WARNING ABOVE 6000 FEET REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL COULD BECOME DANGEROUS...PARTICULARLY OVER THE MOUNTAIN PASSES AND GILMORE SUMMIT DURING THIS TIME FRAME. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS AND MOUNTAIN PASSES OF LEMHI COUNTY TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 9 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 6000 FEET INCLUDING LOST TRAIL...LEMHI... BANNOCK PASSES AND GILMORE SUMMIT BY LATE SATURDAY AFTERNOON. 1 TO 2 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH... MAINLY IN THE HIGHER TERRAIN AND LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE... LEMHI PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ001-121800- /O.CON.KMSO.WW.Y.0061.000000T0000Z-111112T1800Z/ KOOTENAI/CABINET REGION- 458 AM MST SAT NOV 12 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 3000 FEET... A WINTER WEATHER ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOW SHOWERS SNOW WILL CONTINUE TO PRODUCE LOW VISIBILITY AND SLICK ROADS THIS MORNING. TRAVEL WILL BE DIFFICULT AT TIMES...ESPECIALLY ON HIGHWAY 2 BETWEEN LIBBY AND KALISPELL AND ALONG HIGHWAY 93 BETWEEN EUREKA AND WHITEFISH. * SNOW ACCUMULATIONS: 3 TO 5 INCHES...LOCALLY UP TO 6 INCHES. ELEVATIONS BELOW 3000 FEET WILL SEE 1 TO 2 INCHES OF SNOW. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 93 EUREKA TO WHITEFISH $$
603 WWUS45 KMSO 121422 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 722 AM MST SAT NOV 12 2011 MTZ004-121800- /O.CON.KMSO.WS.W.0017.000000T0000Z-111112T1800Z/ LOWER CLARK FORK REGION- 722 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 4000 FEET FOR...EVARO HILL... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOW SHOWERS WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL REMAIN HAZARDOUS...PARTICULARLY ON I-90 OVER LOOKOUT PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: STORM TOTAL OF 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 1 TO 2 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH... MAINLY IN THE HIGHER TERRAIN AND LOOKOUT PASS. && $$ MTZ002-121800- /O.CON.KMSO.WS.W.0017.000000T0000Z-111112T1800Z/ WEST GLACIER REGION- 722 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 4000 FEET FOR...MARIAS PASS... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOW SHOWERS WILL CONTINUE TO COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL REMAIN DIFFICULT OVER HIGHWAY 2...MAINLY FROM ESSEX TO MARIAS PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 2 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 25 TO 30 MPH WITH GUSTS TO 40 MPH...MAINLY IN THE HIGHER TERRAIN AND MARIAS PASS. && $$ IDZ005-006-MTZ006-122230- /O.CON.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- BITTERROOT/SAPPHIRE MOUNTAINS- 722 AM MST SAT NOV 12 2011 /622 AM PST SAT NOV 12 2011/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON ABOVE 4000 FEET... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON. * IMPACTS/TIMING: SNOW SHOWERS WILL CONTINUE TO COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BE DIFFICULT AT TIMES...PARTICULARLY HIGHWAY 12 OVER LOLO PASS AND HIGHWAY 93 OVER LOST TRAIL PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 8 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 1 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH... MAINLY IN THE HIGHER TERRAIN AND OVER LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ043-122230- /O.CON.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ POTOMAC/SEELEY LAKE REGION- 722 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 4000 FEET FOR...HIGHWAY 83 SEELEY LAKE TO CONDON... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL PRODUCE LOW VISIBILITY AND SLICK ROADS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE HIGHER ELEVATIONS WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 9 INCHES IN THE HIGHER TERRAIN AND ON ROADWAYS ABOVE 4000 FEET. 1 TO 3 INCHES ARE POSSIBLE BELOW 4000 FEET. && $$ IDZ010-122230- /O.CON.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ EASTERN LEMHI COUNTY- 722 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 6000 FEET... A WINTER STORM WARNING ABOVE 6000 FEET REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL COULD BECOME DANGEROUS...PARTICULARLY OVER THE MOUNTAIN PASSES AND GILMORE SUMMIT DURING THIS TIME FRAME. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS AND MOUNTAIN PASSES OF LEMHI COUNTY TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 9 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 6000 FEET INCLUDING LOST TRAIL...LEMHI... BANNOCK PASSES AND GILMORE SUMMIT BY LATE SATURDAY AFTERNOON. 1 TO 2 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH... MAINLY IN THE HIGHER TERRAIN AND LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE... LEMHI PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ007-121800- /O.EXA.KMSO.WW.Y.0061.000000T0000Z-111112T1800Z/ BUTTE/BLACKFOOT REGION- 722 AM MST SAT NOV 12 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: A QUICK BURST OF MODERATE SNOW WITH THE PASSAGE OF A COLD FRONT THIS MORNING HAS LEFT AREA ROADWAYS SNOW COVERED AND SLIPPERY THIS MORNING. SNOW WILL BE DECREASING TO SCATTERED SHOWERS SHORTLY AFTER SUNRISE...BUT LOCAL GUSTY WINDS WILL BE BLOWING AND DRIFTING SNOW. * SNOW ACCUMULATIONS: TOTAL 2 TO 4 INCHES BY LATE THIS MORNING... LOCALLY UP TO 6 INCHES OVER HOMESTAKE PASS AND GEORGETOWN LAKE AREA. ELEVATIONS BELOW 4500 FEET WILL SEE 1 TO 2 INCHES OF SNOW. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES DUE TO BLOWING SNOW...AND USE CAUTION WHILE DRIVING. $$ MTZ001-121800- /O.CON.KMSO.WW.Y.0061.000000T0000Z-111112T1800Z/ KOOTENAI/CABINET REGION- 722 AM MST SAT NOV 12 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 3000 FEET... A WINTER WEATHER ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOW SHOWERS SNOW WILL CONTINUE TO PRODUCE LOW VISIBILITY AND SLICK ROADS THIS MORNING. TRAVEL WILL BE DIFFICULT AT TIMES...ESPECIALLY ON HIGHWAY 2 BETWEEN LIBBY AND KALISPELL AND ALONG HIGHWAY 93 BETWEEN EUREKA AND WHITEFISH. * SNOW ACCUMULATIONS: 3 TO 5 INCHES...LOCALLY UP TO 6 INCHES. ELEVATIONS BELOW 3000 FEET WILL SEE 1 TO 2 INCHES OF SNOW. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 93 EUREKA TO WHITEFISH $$
226 WWUS45 KMSO 121430 CCA WSWMSO URGENT - WINTER WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE MISSOULA MT 730 AM MST SAT NOV 12 2011 MTZ004-121800- /O.COR.KMSO.WS.W.0017.000000T0000Z-111112T1800Z/ LOWER CLARK FORK REGION- 730 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 4000 FEET FOR...LOOKOUT PASS... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOW SHOWERS WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL REMAIN HAZARDOUS...PARTICULARLY ON I-90 OVER LOOKOUT PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: STORM TOTAL OF 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 1 TO 2 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH... MAINLY IN THE HIGHER TERRAIN AND LOOKOUT PASS. && $$ MTZ002-121800- /O.CON.KMSO.WS.W.0017.000000T0000Z-111112T1800Z/ WEST GLACIER REGION- 730 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 4000 FEET FOR...MARIAS PASS... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOW SHOWERS WILL CONTINUE TO COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL REMAIN DIFFICULT OVER HIGHWAY 2...MAINLY FROM ESSEX TO MARIAS PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 10 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 2 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST WINDS 25 TO 30 MPH WITH GUSTS TO 40 MPH...MAINLY IN THE HIGHER TERRAIN AND MARIAS PASS. && $$ IDZ005-006-MTZ006-122245- /O.CON.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- BITTERROOT/SAPPHIRE MOUNTAINS- 730 AM MST SAT NOV 12 2011 /630 AM PST SAT NOV 12 2011/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON ABOVE 4000 FEET... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON. * IMPACTS/TIMING: SNOW SHOWERS WILL CONTINUE TO COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL WILL BE DIFFICULT AT TIMES...PARTICULARLY HIGHWAY 12 OVER LOLO PASS AND HIGHWAY 93 OVER LOST TRAIL PASS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE MOUNTAIN PASSES WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 8 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 4000 FEET. 1 TO 4 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH... MAINLY IN THE HIGHER TERRAIN AND OVER LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...DIXIE...ELK CITY...HIGHWAY 93 SULA TO LOST TRAIL PASS...LOLO PASS $$ MTZ043-122245- /O.CON.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ POTOMAC/SEELEY LAKE REGION- 730 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 4000 FEET FOR...HIGHWAY 83 SEELEY LAKE TO CONDON... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL PRODUCE LOW VISIBILITY AND SLICK ROADS. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL OVER THE HIGHER ELEVATIONS WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 9 INCHES IN THE HIGHER TERRAIN AND ON ROADWAYS ABOVE 4000 FEET. 1 TO 3 INCHES ARE POSSIBLE BELOW 4000 FEET. && $$ IDZ010-122245- /O.CON.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ EASTERN LEMHI COUNTY- 730 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 6000 FEET... A WINTER STORM WARNING ABOVE 6000 FEET REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * IMPACTS/TIMING: MODERATE TO HEAVY SNOWFALL WILL COMBINE WITH GUSTY WINDS TO PRODUCE LOW VISIBILITY AND SLICK ROADS. TRAVEL COULD BECOME DANGEROUS...PARTICULARLY OVER THE MOUNTAIN PASSES AND GILMORE SUMMIT DURING THIS TIME FRAME. A SECOND WEATHER SYSTEM WILL DELIVER YET ANOTHER ROUND OF MODERATE TO HEAVY SNOW AND GUSTY WINDS TO THE HIGHER ELEVATIONS AND MOUNTAIN PASSES OF LEMHI COUNTY TONIGHT THROUGH SUNDAY. DIFFICULT TRAVEL WILL LIKELY CONTINUE THROUGH THE REMAINDER OF THE WEEKEND. * SNOW ACCUMULATIONS: 6 TO 9 INCHES IN THE HIGHER TERRAIN AND MOUNTAIN PASSES ABOVE 6000 FEET INCLUDING LOST TRAIL...LEMHI... BANNOCK PASSES AND GILMORE SUMMIT BY LATE SATURDAY AFTERNOON. 1 TO 2 INCHES ARE POSSIBLE BELOW 4000 FEET. * WINDS: SOUTHWEST TO WEST 20 TO 25 MPH WITH GUSTS TO 35 MPH... MAINLY IN THE HIGHER TERRAIN AND LOST TRAIL PASS. * LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE... LEMHI PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR ICE ACCUMULATIONS ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ MTZ007-121800- /O.EXA.KMSO.WW.Y.0061.000000T0000Z-111112T1800Z/ BUTTE/BLACKFOOT REGION- 730 AM MST SAT NOV 12 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: A QUICK BURST OF MODERATE SNOW WITH THE PASSAGE OF A COLD FRONT THIS MORNING HAS LEFT AREA ROADWAYS SNOW COVERED AND SLIPPERY THIS MORNING. SNOW WILL BE DECREASING TO SCATTERED SHOWERS SHORTLY AFTER SUNRISE...BUT LOCAL GUSTY WINDS WILL BE BLOWING AND DRIFTING SNOW. * SNOW ACCUMULATIONS: TOTAL 2 TO 4 INCHES BY LATE THIS MORNING... LOCALLY UP TO 6 INCHES OVER HOMESTAKE PASS AND GEORGETOWN LAKE AREA. ELEVATIONS BELOW 4500 FEET WILL SEE 1 TO 2 INCHES OF SNOW. * LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 12 GARRISON TO ELLISTON...MACDONALD PASS PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES DUE TO BLOWING SNOW...AND USE CAUTION WHILE DRIVING. $$ MTZ001-121800- /O.CON.KMSO.WW.Y.0061.000000T0000Z-111112T1800Z/ KOOTENAI/CABINET REGION- 730 AM MST SAT NOV 12 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 3000 FEET... A WINTER WEATHER ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * IMPACTS/TIMING: SNOW SHOWERS SNOW WILL CONTINUE TO PRODUCE LOW VISIBILITY AND SLICK ROADS THIS MORNING. TRAVEL WILL BE DIFFICULT AT TIMES...ESPECIALLY ON HIGHWAY 2 BETWEEN LIBBY AND KALISPELL AND ALONG HIGHWAY 93 BETWEEN EUREKA AND WHITEFISH. * SNOW ACCUMULATIONS: 3 TO 5 INCHES...LOCALLY UP TO 6 INCHES. ELEVATIONS BELOW 3000 FEET WILL SEE 1 TO 2 INCHES OF SNOW. * LOCATIONS IMPACTED INCLUDE...HIGHWAY 2 KALISPELL TO LIBBY... HIGHWAY 93 EUREKA TO WHITEFISH $$
297 WWUS45 KMSO 121624 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 924 AM MST SAT NOV 12 2011 IDZ005-006-010-MTZ006-043-121730- /O.CAN.KMSO.WS.W.0017.000000T0000Z-111113T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- EASTERN LEMHI COUNTY-BITTERROOT/SAPPHIRE MOUNTAINS- POTOMAC/SEELEY LAKE REGION- 924 AM MST SAT NOV 12 2011 /824 AM PST SAT NOV 12 2011/ ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. MOUNTAIN PASSES WILL CONTINUE TO BE SLICK DUE TO SNOW COVERED ROADS...HOWEVER ADDITIONAL ACCUMULATIONS SHOULD BE MINOR. $$ MTZ002-004-121730- /O.CAN.KMSO.WS.W.0017.000000T0000Z-111112T1800Z/ WEST GLACIER REGION-LOWER CLARK FORK REGION- 924 AM MST SAT NOV 12 2011 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER STORM WARNING. MOUNTAIN PASSES WILL CONTINUE TO BE SLICK DUE TO SNOW COVERED ROADS...HOWEVER ADDITIONAL ACCUMULATIONS SHOULD BE MINOR. $$ MTZ001-007-121730- /O.CAN.KMSO.WW.Y.0061.000000T0000Z-111112T1800Z/ KOOTENAI/CABINET REGION-BUTTE/BLACKFOOT REGION- 924 AM MST SAT NOV 12 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER WEATHER ADVISORY. MOUNTAIN PASSES WILL CONTINUE TO BE SLICK DUE TO SNOW COVERED ROADS...HOWEVER ADDITIONAL ACCUMULATIONS SHOULD BE MINOR. $$
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 Nov 10, 3:37 AM MST, 8 hours 47 minutes earlier.
Area forecast discussion, Nov 10, 3:37 AM MST, 8 hours 47 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
337 AM MST THU NOV 10 2011
...WIND AND SNOW EXPECTED OVER MOUNTAIN PASSES FRIDAY NIGHT AND
SATURDAY...
.DISCUSSION...TODAY AND TONIGHT...OTHER THAN SOME HIGH CLOUD
COVER...TODAY WILL BE ANOTHER NEAR NORMAL FALL DAY.
FRIDAY THROUGH SUNDAY...NO SIGNIFICANT CHANGES TO THE FORECAST.
THIS PERIOD REMAINS A HIGH CONFIDENCE...HIGH IMPACT PERIOD. FRIDAY
NIGHT A STRONG COLD FRONT WITH VERY GOOD JET SUPPORT WILL PASS
THROUGH THE REGION TO USHER IN A MAJOR PATTERN CHANGE. AHEAD OF
THE FRONT STRONG WESTERLY WINDS AND SNOW WILL MAKE HAZARDOUS
DRIVING CONDITIONS ON AREA PASSES...ESPECIALLY LOOKOUT AND MARIAS
PASSES. FIVE TO SIX INCHES OF NEW SNOW ARE POSSIBLE ON THE PASSES
OVERNIGHT WITH SNOW SHOWERS CONTINUING SATURDAY MORNING. SNOW WILL
DECREASE THROUGH THE DAY SATURDAY...BUT THE AREA WILL REMAIN UNDER
UNSTABLE NORTHWEST FLOW. SO FREQUENT SNOW SHOWERS ARE LIKELY.
SEVERAL SMALLER DISTURBANCES WILL MOVE ALONG THE NORTHWEST FLOW
CAUSING RAIN AND SNOW SHOWERS. THE FIRST WILL ARRIVE SATURDAY
NIGHT AND SUNDAY MORNING. PRECIPITATION WITH THESE DISTURBANCES
WILL BE INTERMITTENT AND WILL HAVE LESS ACCUMULATION THAN THE MAIN
COLD FRONTAL PASSAGE FRIDAY NIGHT.
THIS UPCOMING WEEK...CONFIDENCE IS HIGH FOR WELL ABOVE AVERAGE
CHANCES FOR SNOW REGION WIDE THROUGH AT LEAST WEDNESDAY. TIMING
AND SNOW AMOUNTS ARE NOT AS CERTAIN BUT THE MOUNTAINS WILL LIKELY
SEE CONSISTENT ACCUMULATING SNOW THROUGH THE MIDDLE OF THE WEEK
WITH ON AND OFF CHANCES IN THE LOWER ELEVATIONS.
&&
.AVIATION...HIGH PRESSURE WILL DOMINATE IDAHO AND WESTERN MONTANA
TODAY. STABLE CONDITIONS HAVE ALLOWED FOG TO FORM AT KGPI THAT WILL
LAST INTO THIS MORNING. AFTER THE FOG LIFTS CONDITIONS IN THE
REGION WILL BE FAIRLY BENIGN WITH PASSING HIGH LEVEL CLOUDS.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER STORM WATCH FROM FRIDAY EVENING THROUGH SATURDAY
AFTERNOON ABOVE 4000 FEET FOR THE BITTERROOT/SAPPHIRE
MOUNTAINS.
WINTER STORM WATCH FROM FRIDAY EVENING THROUGH SATURDAY
AFTERNOON ABOVE 4000 FEET FOR THE LOWER CLARK FORK REGION.
WINTER STORM WATCH FROM FRIDAY EVENING THROUGH SATURDAY
AFTERNOON ABOVE 4000 FEET FOR THE POTOMAC/SEELEY LAKE
REGION...WEST GLACIER REGION.
ID...WINTER STORM WATCH FROM FRIDAY AFTERNOON THROUGH SATURDAY
AFTERNOON ABOVE 4000 FEET FOR THE NORTHERN CLEARWATER
MOUNTAINS...SOUTHERN CLEARWATER MOUNTAINS.
&&
LEACH/KITSMILLERThe office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 10, 12:24 PM MST | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lincoln, Powell, Sanders and 1 more | 45 hr |
| Nov 10, 2:02 PM MST | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 24 hr |
Nearby
Winter Storm Warnings in Montana, 2011Winter Storm Warnings in Idaho, 2011Every winter storm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.