Alert archive / Montana / Snow Advisories in 2007
Snow Advisory 45, NWS Missoula, MT
NWS Missoula, MT issued this snow advisory at Dec 23, 2007, 12:53 PM PST for Clearwater County, Idaho County, Lemhi County, Idaho; 6 counties in Montana. It took effect at Dec 23, 2007, 4:56 PM PST. It was in force for 23 hr.
The area
The counties it named.
The facts
- Issued
- Dec 23, 2007, 12:53 PM PST (20:53 UTC)
- In effect from
- Dec 23, 2007, 4:56 PM PST
- Expired
- Dec 24, 2007, 4:00 PM PST
- In force
- 23 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID, Lemhi County, ID, Flathead County, MT, Granite County, MT, Lincoln County, MT, Missoula County, MT, Ravalli County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 50 km from the middle of the area, began a volume at 20:52 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 8.9 hours before the alert went out and 168 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
- 501 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS45 KMSO 232053 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 153 PM MST SUN DEC 23 2007 .A MOIST WINTER WEATHER SYSTEM WILL MOVE ACROSS NORTH CENTRAL IDAHO AND WESTERN MONTANA TONIGHT THROUGH MONDAY AFTERNOON. MODERATE TO HEAVY SNOWFALL IS EXPECTED AS THE SYSTEM PASSES AND AS SNOW LEVELS GRADUALLY FALL TO THE LOWER ELEVATIONS BY EARLY MONDAY MORNING. MUCH OF NORTHWEST AND WEST CENTRAL MONTANA WILL ALSO SEE SNOW WITH THIS WEATHER SYSTEM...BUT ACCUMULATIONS IN THESE AREAS ARE EXPECTED TO BE LIGHTER. MTZ004-240500- /O.UPG.KMSO.WS.A.0021.071224T0600Z-071225T0000Z/ /O.NEW.KMSO.HS.W.0023.071224T0000Z-071224T1800Z/ LOWER CLARK FORK REGION- 153 PM MST SUN DEC 23 2007 ...HEAVY SNOW WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST MONDAY ABOVE 3500 FEET NEAR LOOKOUT PASS... ...WINTER STORM WATCH NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HEAVY SNOW WARNING ABOVE 3500 FEET NEAR LOOKOUT PASS...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 6 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET NEAR LOOKOUT PASS BY 11 AM MONDAY. OTHER LOCATIONS CAN EXPECT TO SEE 2 TO 7 INCHES OF NEW SNOWFALL ACCUMULATIONS DURING THIS SAME TIME FRAME. A HEAVY SNOW WARNING FOR LOOKOUT PASS MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ006-240430- /O.UPG.KMSO.WS.A.0021.071224T0600Z-071225T0000Z/ /O.NEW.KMSO.SN.Y.0045.071224T0900Z-071224T2100Z/ BITTERROOT/SAPPHIRE MOUNTAINS- 153 PM MST SUN DEC 23 2007 ...SNOW ADVISORY IN EFFECT FROM 2 AM TO 2 PM MST MONDAY... ...WINTER STORM WATCH NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 2 PM MST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 3 TO 7 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY AFTERNOON. BOTH LOLO PASS AND LOST TRAIL PASS WILL BE IMPACTED BY THIS SYSTEM. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ005-006-240500- /O.UPG.KMSO.WS.A.0021.071224T0600Z-071225T0000Z/ /O.NEW.KMSO.SN.Y.0045.071224T0900Z-071224T2100Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- 1253 PM PST SUN DEC 23 2007 ...SNOW ADVISORY IN EFFECT FROM 1 AM TO 1 PM PST MONDAY ABOVE 3500 FEET... ...WINTER STORM WATCH NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY ABOVE 3500 FEET...WHICH IS IN EFFECT FROM 1 AM TO 1 PM PST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 3 TO 7 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY AFTERNOON. LOLO PASS AND OTHER LOCATIONS ABOVE 3500 FEET WILL BE IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ010-240500- /O.UPG.KMSO.WS.A.0021.071224T1200Z-071225T0000Z/ /O.NEW.KMSO.SN.Y.0045.071224T0900Z-071224T2100Z/ EASTERN LEMHI COUNTY- 153 PM MST SUN DEC 23 2007 ...SNOW ADVISORY IN EFFECT FROM 2 AM TO 2 PM MST MONDAY... ...WINTER STORM WATCH NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 2 PM MST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 3 TO 7 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY AFTERNOON. US HIGHWAY 93 FROM NORTH FORK TO LOST TRAIL PASS WILL BE THE AREA MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ009-240500- /O.NEW.KMSO.SN.Y.0045.071224T0900Z-071224T2100Z/ WESTERN LEMHI COUNTY- 153 PM MST SUN DEC 23 2007 ...SNOW ADVISORY IN EFFECT FROM 2 AM TO 2 PM MST MONDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 2 PM MST MONDAY. 3 TO 7 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY AFTERNOON. SALMON RIVER ROAD HEADING WEST TO SHOUP WILL BE AMONG THE AREAS IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
8 follow-up statements
000 WWUS45 KMSO 240056 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 556 PM MST SUN DEC 23 2007 .A MOIST WINTER WEATHER SYSTEM WILL MOVE ACROSS NORTH CENTRAL IDAHO AND WESTERN MONTANA TONIGHT THROUGH MONDAY AFTERNOON. MODERATE TO HEAVY SNOWFALL IS EXPECTED AS THE SYSTEM PASSES AND AS SNOW LEVELS QUICKLY FALL TO THE LOWER ELEVATIONS BY EARLY MONDAY MORNING. LOWER ELEVATION AREAS OF NORTHWEST AND WEST CENTRAL MONTANA MAY SEE MIXED PRECIPITATION TONIGHT OF RAIN AND SNOW WITH LOCAL FREEZING RAIN...BUT ACCUMULATIONS IN THESE AREAS ARE EXPECTED TO BE LIGHTER. IDZ006-MTZ006-240900- /O.UPG.KMSO.SN.Y.0045.071224T0900Z-071224T2100Z/ /O.EXB.KMSO.HS.W.0023.071224T0400Z-071224T2100Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 556 PM MST SUN DEC 23 2007 /456 PM PST SUN DEC 23 2007/ ...HEAVY SNOW WARNING IN EFFECT FROM 9 PM MST /8 PM PST/ THIS EVENING TO 2 PM MST /1 PM PST/ MONDAY ABOVE 4000 FEET... ...SNOW ADVISORY NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HEAVY SNOW WARNING ABOVE 4000 FEET...WHICH IS IN EFFECT FROM 9 PM MST /8 PM PST/ THIS EVENING TO 2 PM MST /1 PM PST/ MONDAY. THE SNOW ADVISORY IS NO LONGER IN EFFECT. 5 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 4000 FEET TONIGHT THROUGH MONDAY AFTERNOON. BOTH LOLO PASS AND LOST TRAIL PASS WILL BE IMPACTED BY THIS SYSTEM. BELOW 4000 FEET...SNOW THIS MAY MIX WITH OR CHANGE TO RAIN BY MIDNIGHT...THEN CHANGE BACK TO SNOW EARLY MONDAY MORNING. TOTAL SNOWFALL COULD TOTAL 2 TO 4 INCHES BELOW 4000 FEET IN THE SOUTHERN CLEARWATER MOUNTAINS IN NORTH CENTRAL IDAHO AND THE EAST SLOPES OF THE BITTERROOT MOUNTAINS BY MONDAY AFTERNOON. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. $$ MTZ002-240900- /O.EXB.KMSO.HS.W.0023.071224T0400Z-071224T1800Z/ WEST GLACIER REGION- 556 PM MST SUN DEC 23 2007 ...HEAVY SNOW WARNING IN EFFECT FROM 9 PM THIS EVENING TO 11 AM MST MONDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HEAVY SNOW WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 11 AM MST MONDAY. 6 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM MONDAY. THIS WILL IMPACT HIGHWAY 2 FROM EAST OF WEST GLACIER TO MARIAS PASS. OTHER LOCATIONS BELOW 3500 FEET SUCH AS HUNGRY HORSE...WEST GLACIER AND SWAN LAKE CAN EXPECT TO SEE 2 TO 5 INCHES OF NEW SNOWFALL DURING THIS SAME TIME FRAME. A HEAVY SNOW WARNING MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ004-240900- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ LOWER CLARK FORK REGION- 556 PM MST SUN DEC 23 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST MONDAY ABOVE 3500 FEET... A HEAVY SNOW WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 11 AM MST MONDAY. 6 TO 12 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM MONDAY ALONG I-90 FROM SALTESE TO LOOKOUT PASS. AT OTHER LOCATIONS BELOW 3500 FEET THE SNOW MAY MIX WITH OR CHANGE TO RAIN BY MIDNIGHT AND THEN CHANGE BACK TO SNOW BY MONDAY MORNING. THESE LOWER ELEVATION LOCATIONS CAN EXPECT TO SEE 2 TO 4 INCHES OF NEW SNOWFALL ACCUMULATIONS DURING THIS SAME TIME FRAME...INCLUDING SAINT REGIS...TROUT CREEK...AND THOMPSON FALLS. A HEAVY SNOW WARNING FOR LOOKOUT PASS MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ005-240900- /O.EXT.KMSO.SN.Y.0045.071224T0056Z-071224T1800Z/ NORTHERN CLEARWATER MOUNTAINS- 456 PM PST SUN DEC 23 2007 ...SNOW ADVISORY NOW IN EFFECT UNTIL 10 AM PST MONDAY ABOVE 3000 FEET... THE SNOW ADVISORY ABOVE 3000 FEET IS NOW IN EFFECT UNTIL 10 AM PST MONDAY. 3 TO 6 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY MORNING. THE SNOW MAY BRIEFLY MIX WITH AND CHANGE TO RAIN LATER TONIGHT AND THEN BACK TO SNOW BY MORNING. HEADQUARTERS AND PIERCE AND OTHER LOCATIONS ABOVE 3000 FEET WILL BE IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ009-010-240900- /O.EXT.KMSO.SN.Y.0045.071224T0800Z-071225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 556 PM MST SUN DEC 23 2007 ...SNOW ADVISORY NOW IN EFFECT FROM 1 AM TO 5 PM MST MONDAY ABOVE 4000 FEET... THE SNOW ADVISORY ABOVE 4000 FEET IS NOW IN EFFECT FROM 1 AM TO 5 PM MST MONDAY. 2 TO 5 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY AFTERNOON. SALMON RIVER ROAD HEADING WEST TO SHOUP...HIGHWAY 93 NORTH OF NORTH FORK AND HIGHWAY 28 SOUTH OF LEMHI WILL BE THE AREAS MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 240538 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1038 PM MST SUN DEC 23 2007 .A MOIST WINTER WEATHER SYSTEM WILL MOVE ACROSS NORTH CENTRAL IDAHO AND WESTERN MONTANA TONIGHT THROUGH MONDAY AFTERNOON. MODERATE TO HEAVY SNOWFALL IS EXPECTED AS THE SYSTEM PASSES AND AS SNOW LEVELS QUICKLY FALL TO THE LOWER ELEVATIONS BY EARLY MONDAY MORNING. LOWER ELEVATION AREAS OF NORTHWEST AND WEST CENTRAL MONTANA MAY SEE MIXED PRECIPITATION TONIGHT OF RAIN AND SNOW WITH LOCAL FREEZING RAIN...BUT ACCUMULATIONS IN THESE AREAS ARE EXPECTED TO BE LIGHTER. MTZ002-241200- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ WEST GLACIER REGION- 1038 PM MST SUN DEC 23 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST MONDAY... A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST MONDAY. 6 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM MONDAY. THIS WILL IMPACT HIGHWAY 2 FROM EAST OF WEST GLACIER TO MARIAS PASS. OTHER LOCATIONS BELOW 3500 FEET SUCH AS HUNGRY HORSE...WEST GLACIER AND SWAN LAKE CAN EXPECT TO SEE 2 TO 5 INCHES OF NEW SNOWFALL DURING THIS SAME TIME FRAME. A HEAVY SNOW WARNING MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ004-241200- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ LOWER CLARK FORK REGION- 1038 PM MST SUN DEC 23 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST MONDAY ABOVE 3500 FEET... A HEAVY SNOW WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 11 AM MST MONDAY. 6 TO 12 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM MONDAY ALONG I-90 FROM SALTESE TO LOOKOUT PASS. AT OTHER LOCATIONS BELOW 3500 FEET THE SNOW MAY MIX WITH OR CHANGE TO RAIN BY MIDNIGHT AND THEN CHANGE BACK TO SNOW BY MONDAY MORNING. THESE LOWER ELEVATION LOCATIONS CAN EXPECT TO SEE 2 TO 4 INCHES OF NEW SNOWFALL ACCUMULATIONS DURING THIS SAME TIME FRAME...INCLUDING SAINT REGIS...TROUT CREEK...AND THOMPSON FALLS. A HEAVY SNOW WARNING FOR LOOKOUT PASS MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ006-MTZ006-241200- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T2100Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 1038 PM MST SUN DEC 23 2007 /938 PM PST SUN DEC 23 2007/ ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 2 PM MST /1 PM PST/ MONDAY ABOVE 4000 FEET... A HEAVY SNOW WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 2 PM MST /1 PM PST/ MONDAY. 5 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 4000 FEET TONIGHT THROUGH MONDAY AFTERNOON. BOTH LOLO PASS AND LOST TRAIL PASS WILL BE IMPACTED BY THIS SYSTEM. BELOW 4000 FEET...SNOW THIS MAY MIX WITH OR CHANGE TO RAIN BY MIDNIGHT...THEN CHANGE BACK TO SNOW EARLY MONDAY MORNING. TOTAL SNOWFALL COULD TOTAL 2 TO 4 INCHES BELOW 4000 FEET IN THE SOUTHERN CLEARWATER MOUNTAINS IN NORTH CENTRAL IDAHO AND THE EAST SLOPES OF THE BITTERROOT MOUNTAINS BY MONDAY AFTERNOON. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. $$ MTZ001-241200- /O.EXB.KMSO.SN.Y.0045.071224T0538Z-071224T1500Z/ KOOTENAI/CABINET REGION- 1038 PM MST SUN DEC 23 2007 ...SNOW ADVISORY IN EFFECT UNTIL 8 AM MST MONDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 8 AM MST MONDAY. 2 TO 6 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED NOW THROUGH MONDAY MONDAY. TROY...LIBBY...YAAK AND THE HIGHWAY 2 CORRIDOR FROM THE IDAHO BORDER TO MARION WILL BE AREAS MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ005-241200- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071224T1800Z/ NORTHERN CLEARWATER MOUNTAINS- 938 PM PST SUN DEC 23 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY ABOVE 3000 FEET... A SNOW ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 10 AM PST MONDAY. 3 TO 6 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY MORNING. THE SNOW MAY BRIEFLY MIX WITH AND CHANGE TO RAIN LATER TONIGHT AND THEN BACK TO SNOW BY MORNING. HEADQUARTERS AND PIERCE AND OTHER LOCATIONS ABOVE 3000 FEET WILL BE IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ009-010-241200- /O.CON.KMSO.SN.Y.0045.071224T0800Z-071225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 1038 PM MST SUN DEC 23 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST MONDAY ABOVE 4000 FEET... A SNOW ADVISORY ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST MONDAY. 2 TO 5 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY AFTERNOON. SALMON RIVER ROAD HEADING WEST TO SHOUP...HIGHWAY 93 NORTH OF NORTH FORK AND HIGHWAY 28 SOUTH OF LEMHI WILL BE THE AREAS MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 240936 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 236 AM MST MON DEC 24 2007 .A MOIST WINTER WEATHER SYSTEM WILL MOVE ACROSS NORTH CENTRAL IDAHO AND WESTERN MONTANA TONIGHT THROUGH MONDAY AFTERNOON. MODERATE TO HEAVY SNOWFALL IS EXPECTED AS THE SYSTEM PASSES AND AS SNOW LEVELS QUICKLY FALL TO THE LOWER ELEVATIONS BY EARLY MONDAY MORNING. LOWER ELEVATION AREAS OF NORTHWEST AND WEST CENTRAL MONTANA MAY SEE MIXED PRECIPITATION TONIGHT OF RAIN AND SNOW WITH LOCAL FREEZING RAIN...BUT ACCUMULATIONS IN THESE AREAS ARE EXPECTED TO BE LIGHTER. MTZ002-241300- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ WEST GLACIER REGION- 236 AM MST MON DEC 24 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. 6 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM MONDAY. THIS WILL IMPACT HIGHWAY 2 FROM EAST OF WEST GLACIER TO MARIAS PASS. OTHER LOCATIONS BELOW 3500 FEET SUCH AS HUNGRY HORSE...WEST GLACIER AND SWAN LAKE CAN EXPECT TO SEE 2 TO 5 INCHES OF NEW SNOWFALL DURING THIS SAME TIME FRAME. A HEAVY SNOW WARNING MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ004-241300- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ LOWER CLARK FORK REGION- 236 AM MST MON DEC 24 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 3500 FEET... A HEAVY SNOW WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. 6 TO 12 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM MONDAY ALONG I-90 FROM SALTESE TO LOOKOUT PASS. AT OTHER LOCATIONS BELOW 3500 FEET THE SNOW MAY MIX WITH OR CHANGE TO RAIN BY MIDNIGHT AND THEN CHANGE BACK TO SNOW BY MONDAY MORNING. THESE LOWER ELEVATION LOCATIONS CAN EXPECT TO SEE 2 TO 4 INCHES OF NEW SNOWFALL ACCUMULATIONS DURING THIS SAME TIME FRAME...INCLUDING SAINT REGIS...TROUT CREEK...AND THOMPSON FALLS. A HEAVY SNOW WARNING FOR LOOKOUT PASS MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ006-MTZ006-241300- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T2100Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 236 AM MST MON DEC 24 2007 /136 AM PST MON DEC 24 2007/ ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 2 PM MST /1 PM PST/ THIS AFTERNOON ABOVE 4000 FEET... A HEAVY SNOW WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 2 PM MST /1 PM PST/ THIS AFTERNOON. 5 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 4000 FEET TONIGHT THROUGH MONDAY AFTERNOON. BOTH LOLO PASS AND LOST TRAIL PASS WILL BE IMPACTED BY THIS SYSTEM. BELOW 4000 FEET...SNOW THIS MAY MIX WITH OR CHANGE TO RAIN BY MIDNIGHT...THEN CHANGE BACK TO SNOW EARLY MONDAY MORNING. TOTAL SNOWFALL COULD TOTAL 2 TO 4 INCHES BELOW 4000 FEET IN THE SOUTHERN CLEARWATER MOUNTAINS IN NORTH CENTRAL IDAHO AND THE EAST SLOPES OF THE BITTERROOT MOUNTAINS BY MONDAY AFTERNOON. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. $$ MTZ005-241300- /O.NEW.KMSO.ZR.Y.0004.071224T0936Z-071224T1300Z/ MISSOULA/BITTERROOT VALLEYS- 236 AM MST MON DEC 24 2007 ...FREEZING RAIN ADVISORY IN EFFECT UNTIL 6 AM MST EARLY THIS MORNING FOR THE MISSOULA VALLEY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A FREEZING RAIN ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM MST EARLY THIS MORNING FOR THE MISSOULA VALLEY. PRECIPITATION HAS TRANSITIONED TO FREEZING RAIN OVER THE MISSOULA VALLEY THIS MORNING AS A WARM FRONT HAS INCREASED TEMPERATURES TO ABOVE FREEZING ALOFT. PRECIPITATION IS EXPECTED TO TRANSITION BACK TO SNOW WITHIN A FEW HOURS...HOWEVER ROADS WILL BECOME SLICK UNTIL THIS TRANSITION OCCURS. ACCUMULATIONS ARE EXPECTED TO REMAIN LIGHT. A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING. $$ MTZ001-241300- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071224T1500Z/ KOOTENAI/CABINET REGION- 236 AM MST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING. 2 TO 6 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED NOW THROUGH MONDAY MONDAY. TROY...LIBBY...YAAK AND THE HIGHWAY 2 CORRIDOR FROM THE IDAHO BORDER TO MARION WILL BE AREAS MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ005-241300- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071224T1800Z/ NORTHERN CLEARWATER MOUNTAINS- 136 AM PST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING ABOVE 3000 FEET... A SNOW ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING. 3 TO 6 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY MORNING. THE SNOW MAY BRIEFLY MIX WITH AND CHANGE TO RAIN LATER TONIGHT AND THEN BACK TO SNOW BY MORNING. HEADQUARTERS AND PIERCE AND OTHER LOCATIONS ABOVE 3000 FEET WILL BE IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ009-010-241300- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 236 AM MST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 4000 FEET... A SNOW ADVISORY ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. 2 TO 5 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED FROM LATE TONIGHT THROUGH MONDAY AFTERNOON. SALMON RIVER ROAD HEADING WEST TO SHOUP...HIGHWAY 93 NORTH OF NORTH FORK AND HIGHWAY 28 SOUTH OF LEMHI WILL BE THE AREAS MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 241245 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 545 AM MST MON DEC 24 2007 .A MOIST WINTER WEATHER SYSTEM WILL CONTINUE TO MOVE ACROSS NORTH CENTRAL IDAHO AND WESTERN MONTANA THROUGH THIS AFTERNOON. MODERATE TO HEAVY SNOWFALL IS EXPECTED AS THE SYSTEM PASSES AND AS SNOW LEVELS QUICKLY FALL TO THE LOWER ELEVATIONS BY EARLY MONDAY MORNING. LOWER ELEVATION AREAS OF NORTHWEST AND WEST CENTRAL MONTANA MAY SEE MIXED PRECIPITATION EARLY THIS MORNING OF RAIN AND SNOW WITH LOCAL FREEZING RAIN...BUT ACCUMULATIONS IN THESE AREAS ARE EXPECTED TO BE LIGHTER. MTZ005-241345- /O.EXP.KMSO.ZR.Y.0004.000000T0000Z-071224T1300Z/ MISSOULA/BITTERROOT VALLEYS- 545 AM MST MON DEC 24 2007 ...FREEZING RAIN ADVISORY WILL EXPIRE AT 6 AM MST EARLY THIS MORNING FOR THE MISSOULA VALLEY... THE FREEZING RAIN ADVISORY WILL EXPIRE AT 6 AM MST EARLY THIS MORNING FOR THE MISSOULA VALLEY. PRECIPITATION HAS WEAKENED AND TRANSITIONED TO MAINLY SNOW THIS MORNING AS A COLD FRONT HAS PUSHED THROUGH THE MISSOULA VALLEY. A FEW POCKETS OF FREEZING RAIN IS POSSIBLE OVER THE NEXT HOUR...BUT IS EXPECTED TO REMAIN LIGHT AND ISOLATED IN NATURE. $$ MTZ002-241500- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ WEST GLACIER REGION- 545 AM MST MON DEC 24 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. 6 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM THIS MORNING. THIS WILL IMPACT HIGHWAY 2 FROM EAST OF WEST GLACIER TO MARIAS PASS. OTHER LOCATIONS BELOW 3500 FEET SUCH AS HUNGRY HORSE...WEST GLACIER AND SWAN LAKE CAN EXPECT TO SEE 2 TO 5 INCHES OF NEW SNOWFALL DURING THIS SAME TIME FRAME. A HEAVY SNOW WARNING MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ004-241500- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ LOWER CLARK FORK REGION- 545 AM MST MON DEC 24 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 3500 FEET... A HEAVY SNOW WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. 6 TO 12 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM THIS MORNING ALONG I-90 FROM SALTESE TO LOOKOUT PASS. AT OTHER LOCATIONS BELOW 3500 FEET THE SNOW MAY MIX WITH OR CHANGE TO FREEZING RAIN EARLY THIS MORNING AND THEN CHANGE BACK TO SNOW. THESE LOWER ELEVATION LOCATIONS CAN EXPECT TO SEE 2 TO 4 INCHES OF NEW SNOWFALL ACCUMULATIONS DURING THIS SAME TIME FRAME...INCLUDING SAINT REGIS...TROUT CREEK...AND THOMPSON FALLS. A HEAVY SNOW WARNING FOR LOOKOUT PASS MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ006-MTZ006-241500- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T2100Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 545 AM MST MON DEC 24 2007 /445 AM PST MON DEC 24 2007/ ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 2 PM MST /1 PM PST/ THIS AFTERNOON ABOVE 4000 FEET... A HEAVY SNOW WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 2 PM MST /1 PM PST/ THIS AFTERNOON. 5 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 4000 FEET BY THIS AFTERNOON. BOTH LOLO PASS AND LOST TRAIL PASS WILL BE IMPACTED BY THIS SYSTEM. BELOW 4000 FEET...SNOW THIS MAY MIX WITH OR CHANGE TO RAIN...THEN CHANGE BACK TO SNOW BY LATE THIS MORNING. TOTAL SNOWFALL COULD TOTAL 2 TO 4 INCHES BELOW 4000 FEET IN THE SOUTHERN CLEARWATER MOUNTAINS IN NORTH CENTRAL IDAHO AND THE EAST SLOPES OF THE BITTERROOT MOUNTAINS BY MONDAY AFTERNOON. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. $$ MTZ001-241500- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071224T1500Z/ KOOTENAI/CABINET REGION- 545 AM MST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING. 2 TO 6 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED BY MID MORNING. TROY...LIBBY...YAAK AND THE HIGHWAY 2 CORRIDOR FROM THE IDAHO BORDER TO MARION WILL BE AREAS MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ005-241500- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071224T1800Z/ NORTHERN CLEARWATER MOUNTAINS- 445 AM PST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING ABOVE 3000 FEET... A SNOW ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING. 3 TO 6 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED THROUGH THIS MORNING. HEADQUARTERS AND PIERCE AND OTHER LOCATIONS ABOVE 3000 FEET WILL BE IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ009-010-241500- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 545 AM MST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 4000 FEET... A SNOW ADVISORY ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. 2 TO 5 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED THROUGH THIS AFTERNOON. SALMON RIVER ROAD HEADING WEST TO SHOUP...HIGHWAY 93 NORTH OF NORTH FORK AND HIGHWAY 28 SOUTH OF LEMHI WILL BE THE AREAS MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 241444 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 744 AM MST MON DEC 24 2007 .A MOIST WINTER WEATHER SYSTEM WILL CONTINUE TO MOVE ACROSS NORTH CENTRAL IDAHO AND WESTERN MONTANA THROUGH THIS AFTERNOON. MODERATE TO HEAVY SNOWFALL IS EXPECTED AS THE SYSTEM PASSES AND AS SNOW LEVELS QUICKLY FALL TO THE LOWER ELEVATIONS THIS MORNING. LOWER ELEVATION AREAS OF NORTHWEST AND WEST CENTRAL MONTANA HAS SEEN AND WILL CONTINUE TO SEE MIXED PRECIPITATION THIS MORNING OF RAIN AND SNOW WITH LOCAL FREEZING RAIN...BUT ACCUMULATIONS IN THESE AREAS ARE EXPECTED TO BE LIGHTER. MTZ001-241545- /O.EXP.KMSO.SN.Y.0045.000000T0000Z-071224T1500Z/ KOOTENAI/CABINET REGION- 744 AM MST MON DEC 24 2007 ...SNOW ADVISORY WILL EXPIRE AT 8 AM MST THIS MORNING... THE SYSTEM RESPONSIBLE FOR THE SNOW THAT FELL ACROSS LINCOLN COUNTY TONIGHT HAS MOVED INTO WEST CENTRAL AND SOUTHWEST MONTANA. SCATTERED SNOW SHOWERS WILL LINGER TODAY. $$ MTZ002-241800- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ WEST GLACIER REGION- 744 AM MST MON DEC 24 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... 6 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM THIS MORNING. THIS WILL IMPACT HIGHWAY 2 FROM EAST OF WEST GLACIER TO MARIAS PASS. OTHER LOCATIONS BELOW 3500 FEET SUCH AS HUNGRY HORSE...WEST GLACIER AND SWAN LAKE CAN EXPECT TO SEE 2 TO 5 INCHES OF NEW SNOWFALL DURING THIS SAME TIME FRAME. A HEAVY SNOW WARNING MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ004-241800- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ LOWER CLARK FORK REGION- 744 AM MST MON DEC 24 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 3500 FEET... 6 TO 12 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 3500 FEET BY 11 AM THIS MORNING ALONG I-90 FROM SALTESE TO LOOKOUT PASS. AT OTHER LOCATIONS BELOW 3500 FEET THE SNOW MAY MIX WITH OR CHANGE TO FREEZING RAIN EARLY THIS MORNING AND THEN CHANGE BACK TO SNOW. THESE LOWER ELEVATION LOCATIONS CAN EXPECT TO SEE 2 TO 4 INCHES OF NEW SNOWFALL ACCUMULATIONS DURING THIS SAME TIME FRAME...INCLUDING SAINT REGIS...TROUT CREEK...AND THOMPSON FALLS. A HEAVY SNOW WARNING FOR LOOKOUT PASS MEANS THAT SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED NEAR AND AT THE PASS. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ006-MTZ006-241800- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T2100Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 744 AM MST MON DEC 24 2007 /644 AM PST MON DEC 24 2007/ ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 2 PM MST /1 PM PST/ THIS AFTERNOON ABOVE 4000 FEET... 5 TO 10 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED ABOVE 4000 FEET BY THIS AFTERNOON. BOTH LOLO PASS AND LOST TRAIL PASS WILL BE IMPACTED BY THIS SYSTEM. BELOW 4000 FEET...SNOW THIS MAY MIX WITH OR CHANGE TO RAIN...THEN CHANGE BACK TO SNOW BY LATE THIS MORNING. TOTAL SNOWFALL COULD TOTAL 2 TO 4 INCHES BELOW 4000 FEET IN THE SOUTHERN CLEARWATER MOUNTAINS IN NORTH CENTRAL IDAHO AND THE EAST SLOPES OF THE BITTERROOT MOUNTAINS BY MONDAY AFTERNOON. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. $$ IDZ005-241800- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071224T1800Z/ NORTHERN CLEARWATER MOUNTAINS- 644 AM PST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING ABOVE 3000 FEET... 3 TO 6 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED THROUGH THIS MORNING. HEADQUARTERS AND PIERCE AND OTHER LOCATIONS ABOVE 3000 FEET WILL BE IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ009-010-241800- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 744 AM MST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 4000 FEET... 2 TO 5 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED THROUGH THIS AFTERNOON. SALMON RIVER ROAD HEADING WEST TO SHOUP...HIGHWAY 93 NORTH OF NORTH FORK AND HIGHWAY 28 SOUTH OF LEMHI WILL BE THE AREAS MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 241741 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1041 AM MST MON DEC 24 2007 .A MOIST WINTER WEATHER SYSTEM WILL CONTINUE TO MOVE ACROSS NORTH CENTRAL IDAHO AND WESTERN MONTANA THROUGH THIS AFTERNOON. MODERATE TO HEAVY SNOWFALL IS EXPECTED AS THE SYSTEM PASSES. SNOW LEVELS HAVE FALLEN TO THE LOWER ELEVATIONS THIS MORNING...BUT ACCUMULATIONS IN THE VALLEYS ARE EXPECTED TO BE LIGHTER. MTZ002-241845- /O.EXP.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ WEST GLACIER REGION- 1041 AM MST MON DEC 24 2007 ...HEAVY SNOW WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... HEAVY SNOWFALL THAT HAS BEEN FALLING OVER NORTHWEST MONTANA SINCE LAST NIGHT HAS TAPERED OFF TO SCATTERED SNOW SHOWERS THIS MORNING. SNOW ACCUMULATIONS ARE EXPECTED TO BE LIGHT AND END BY TONIGHT. THEREFORE...THE HEAVY SNOW WARNING FOR WEST GLACIER REGION HAS BEEN ALLOWED TO EXPIRE. $$ MTZ004-241845- /O.EXP.KMSO.HS.W.0023.000000T0000Z-071224T1800Z/ LOWER CLARK FORK REGION- 1041 AM MST MON DEC 24 2007 ...HEAVY SNOW WARNING WILL EXPIRE AT 11 AM MST THIS MORNING ABOVE 3500 FEET... HEAVY SNOWFALL THAT HAS BEEN FALLING OVER NORTHWEST MONTANA SINCE LAST NIGHT HAS TAPERED OFF TO SCATTERED SNOW SHOWERS THIS MORNING. SNOW ACCUMULATIONS ARE EXPECTED TO BE LIGHT AND END BY TONIGHT. THEREFORE...THE HEAVY SNOW WARNING FOR LOWER CLARK FORK REGION HAS BEEN ALLOWED TO EXPIRE. $$ IDZ005-241845- /O.EXP.KMSO.SN.Y.0045.000000T0000Z-071224T1800Z/ NORTHERN CLEARWATER MOUNTAINS- 941 AM PST MON DEC 24 2007 ...SNOW ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING ABOVE 3000 FEET... THE SYSTEM RESPONSIBLE FOR THE SNOW THAT FELL ACROSS THE NORTHERN CLEARWATER MOUNTAINS THIS MORNING HAS MOVED INTO SOUTHWEST MONTANA. SCATTERED SNOW SHOWERS WILL LINGER TODAY WITH A FEW LOCATIONS RECEIVING LIGHT SNOW ACCUMULATIONS. $$ IDZ006-MTZ006-242100- /O.CON.KMSO.HS.W.0023.000000T0000Z-071224T2100Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 1041 AM MST MON DEC 24 2007 /941 AM PST MON DEC 24 2007/ ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 2 PM MST /1 PM PST/ THIS AFTERNOON ABOVE 4000 FEET... BELOW 4000 FEET...SNOW THIS MAY MIX WITH OR CHANGE TO RAIN...THEN CHANGE BACK TO SNOW BY LATE THIS MORNING. TOTAL SNOWFALL COULD TOTAL 2 TO 4 INCHES BELOW 4000 FEET IN THE SOUTHERN CLEARWATER MOUNTAINS IN NORTH CENTRAL IDAHO AND THE EAST SLOPES OF THE BITTERROOT MOUNTAINS BY MONDAY AFTERNOON. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. $$ IDZ009-010-242100- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 1041 AM MST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 4000 FEET... 2 TO 5 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED THROUGH THIS AFTERNOON. SALMON RIVER ROAD HEADING WEST TO SHOUP...HIGHWAY 93 NORTH OF NORTH FORK AND HIGHWAY 28 SOUTH OF LEMHI WILL BE THE AREAS MOST IMPACTED BY THIS EVENT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 242041 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 141 PM MST MON DEC 24 2007 .A MOIST WINTER WEATHER SYSTEM WILL CONTINUE TO MOVE ACROSS NORTH CENTRAL IDAHO AND WESTERN MONTANA THROUGH THIS AFTERNOON. MODERATE TO HEAVY SNOWFALL IS EXPECTED AS THE SYSTEM PASSES. SNOW LEVELS HAVE FALLEN TO THE LOWER ELEVATIONS THIS MORNING...BUT ACCUMULATIONS IN THE VALLEYS ARE EXPECTED TO BE LIGHTER. IDZ006-MTZ006-242145- /O.EXP.KMSO.HS.W.0023.000000T0000Z-071224T2100Z/ SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS- 141 PM MST MON DEC 24 2007 /1241 PM PST MON DEC 24 2007/ ...HEAVY SNOW WARNING WILL EXPIRE AT 2 PM MST /1 PM PST/ THIS AFTERNOON ABOVE 4000 FEET... HEAVY SNOWFALL THAT HAS BEEN FALLING OVER WESTERN MONTANA SINCE LAST NIGHT HAS TAPERED OFF TO SCATTERED SNOW SHOWERS THIS AFTERNOON. SNOW ACCUMULATIONS ARE EXPECTED TO BE LIGHT AND END BY TONIGHT. THEREFORE...THE HEAVY SNOW WARNING FOR THE SOUTHERN CLEARWATER...BITTERROOT AND SAPPHIRE MOUNTAINS HAS BEEN ALLOWED TO EXPIRE. $$ IDZ009-010-250000- /O.CON.KMSO.SN.Y.0045.000000T0000Z-071225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 141 PM MST MON DEC 24 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON ABOVE 4000 FEET... 2 TO 5 INCHES OF NEW SNOWFALL ACCUMULATIONS ARE EXPECTED THROUGH THIS AFTERNOON. SALMON RIVER ROAD HEADING WEST TO SHOUP...HIGHWAY 93 NORTH OF NORTH FORK AND HIGHWAY 28 SOUTH OF LEMHI WILL BE THE AREAS MOST IMPACTED BY THIS EVENT. GUSTY WESTERLY WINDS COULD CAUSE LOCAL BLOWING SNOW...ESPECIALLY ACROSS OPEN OR EXPOSED LOCATIONS. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 242347 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 447 PM MST MON DEC 24 2007 IDZ009-010-250100- /O.EXP.KMSO.SN.Y.0045.000000T0000Z-071225T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 447 PM MST MON DEC 24 2007 ...SNOW ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON ABOVE 4000 FEET... THE SNOW ADVISORY ABOVE 4000 FEET WILL EXPIRE AT 5 PM MST THIS AFTERNOON. A FEW LIGHT LIGHT SNOW SHOWERS WILL CONTINUE THROUGH MID EVENING WITH ONLY LOCAL LIGHT ADDITIONAL ACCUMULATIONS OF LESS THEN AN INCH EXPECTED. $$
What forecasters said that day
The local office's own words before this snow advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this snow advisory went out at Dec 23, 8:14 AM PST, 4 hours 39 minutes earlier.
Area forecast discussion, Dec 23, 8:14 AM PST, 4 hours 39 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
914 AM MST SUN DEC 23 2007
.DISCUSSION...LATEST RADAR AND SATELLITE IMAGERY SHOW THAT THE
CURRENT FORECAST PACKAGE IS RIGHT ON TRACK. THOUGH MORNING TEMPS
ARE A GOOD BIT HIGHER THIS MORNING THAN THEY HAVE BEEN
RECENTLY...THINKING THAT THE CURRENT FORECAST HIGH TEMPERATURES
ARE WITHIN ABOUT 2 DEGREES OF WHAT WILL BE OBSERVED THIS
AFTERNOON...EVEN THOUGH THEY ARE CURRENTLY ONLY ABOUT 5 DEGREES
AWAY FROM THEIR FORECASTED HIGH TEMPS. ADVANCING CLOUD
COVER...LIGHT LOW LEVEL WIND FLOW AND WEAK MID LEVEL LAPSE RATES
SHOULD PREVENT TOTAL MIXING IN THE VALLEYS. THEREFORE ONLY
EXPECTING TEMPERATURES TO RISE INTO THE LOWER 30S TODAY IN MOST
VALLEY LOCATIONS.
IN REGARD TO TONIGHTS WATCHES THAT ARE OUT...I AM STRONGLY
CONSIDERING CONVERTING THEM OVER TO SNOW ADVISORIES INSTEAD OF
WARNINGS (EXCEPT AT LOOKOUT PASS.) THE REASON FOR THIS IS THAT SNOW
LEVELS ARE EXPECTED TO RISE TO BE ABOVE IMPACT AREAS BY THIS
EVENING...WHICH IS WHEN THE EVENT BEGINS. SNOW LEVELS ARE NOT
EXPECTED TO FALL DOWN TO IMPACT AREAS UNTIL ABOUT 12Z
MONDAY...WHICH IS AROUND THE MID POINT OF THE EVENT. THE ONLY
POSSIBLE EXCEPTION TO THIS MAY BE LOOKOUT PASS WHERE TEMPS AND WET
BULB TEMPS COULD REMAIN BELOW FREEZING FOR THE ENTIRE EVENT AS A
WARM FRONT STALLS JUST TO THE SOUTH OVER THE NRN CREST OF THE
BITTERROOT MTNS. I MAY END UP GOING FOR A HEAVY SNOW WARNING FOR
LOOKOUT PASS AND A SNOW ADVISORY ELSEWHERE WITH THE AFTERNOON
PACKAGE.
&&
.AVIATION...AREAS OF SNOW AND RAIN WILL OBSCURE MOUNTAINS AND
PEAKS TONIGHT THROUGH MUCH OF MONDAY AS A WINTER WEATHER SYSTEM
MOVES SOUTHEAST ACROSS THE AREA.
&&
.PREV DISCUSSION... /ISSUED 651 AM MST SUN DEC 23 2007/
UPDATE...DID A QUICK UPDATE TO CANCEL SNOW ADVISORIES FOR THE
NORTHERN AND SOUTHERN CLEARWATER MOUNTAINS IN IDAHO. PRECIPITATION HAS
WEAKENED CONSIDERABLY AND THUS ADVISORIES ARE NO LONGER NEEDED.
AVIATION...SNOW SHOWERS WILL CONTINUE TO PRODUCE LOCAL VISIBILITY
CONCERNS ROUGHLY SOUTH AND EAST OF MISSOULA THROUGH MID MORNING.
THE NEXT SYSTEM WILL MOVE OVER THE NORTHERN ROCKIES LATE THIS
AFTERNOON. THE FOCUS FOR SNOW WILL BE OVER NORTH CENTRAL IDAHO
TONIGHT THEN SHIFT TO SOUTHWEST MONTANA AND SOUTHEAST IDAHO
MONDAY. HOWEVER...MOUNTAIN OBSCURATIONS AND AREAS OF WIDESPREAD
SNOW WILL BE OBSERVED THROUGHOUT THE NORTHERN ROCKIES TONIGHT AND
MONDAY.
PREV DISCUSSION... /ISSUED 339 AM MST SUN DEC 23 2007/
DISCUSSION...THE AIR MASS OVER THE NORTHERN ROCKIES WILL SEE SOME
DRYING THIS MORNING AS HIGH PRESSURE BUILDS ALOFT. THIS WILL
CONTINUE TO DIMINISH THE SNOW SHOWER ACTIVITY THAT HAS PERSISTED
ACROSS NORTH CENTRAL IDAHO AND WEST CENTRAL MONTANA. THE BIG STORY
OF THE SHORT TERM IS THE MOIST SYSTEM ARRIVING OVER NORTHERN IDAHO
AND FAR WESTERN MONTANA THIS EVENING AND THEN SPREADING TO
SOUTHWEST MONTANA AND SOUTHEAST IDAHO THROUGH THE DAY MONDAY. THIS
STILL HAS THE POTENTIAL TO BE A GOOD SNOW PRODUCER OVER NORTHERN
IDAHO AND PRIMARILY THE MOUNTAINS OF FAR WESTERN MONTANA...BUT THE
AMOUNT OF ACCUMULATION IS STILL A TOUGH NUT TO CRACK. THE SURFACE
COLD FRONT WITH THIS SYSTEM WILL MOVE THROUGH MUCH OF THE REGION
JUST PRIOR TO DAYBREAK WITH WARM AIR EXPECTED AHEAD OF THIS
FEATURE. WITH THE ORIENTATION OF THE UPPER LEVEL FEATURE...THIS
WARM AIR ADVECTION COULD BE OVER A PROLONGED PERIOD...HAVING AN
IMPACT NOT ONLY ON SNOW LEVELS BUT ALSO ON THE SNOW TO WATER
RATIOS. THEREFORE THERE COULD BE GOOD PRECIPITATION BUT LESS THAN
IDEAL SNOWFLAKE GROWTH...AND THUS UNDER DOING THE SNOW
ACCUMULATION. ALL THIS LEADS TO THE FACT THAT IT IS STILL TOO
EARLY TO DETERMINE WHETHER THE FAVORED AREAS MENTIONED ABOVE WILL
SEE HEAVY SNOW OR SOMEWHAT LESSER SNOW ADVISORY LEVEL
ACCUMULATIONS. GIVEN THIS UNCERTAINTY...WILL MAINTAIN THE WINTER
STORM WATCH HIGHLIGHTING THE POTENTIAL FOR HEAVY SNOW IN NORTHERN
IDAHO AND THE MAIN PASSES THROUGH THE BITTERROOTS.
THE DEVELOPING SOUTHERLY PRESSURE GRADIENT IN THE WARM AIR PATTERN
AHEAD OF THE COLD FRONT WILL PRODUCE ANOTHER ROUND OF WINDS ON THE
CAMAS PRAIRIE OF IDAHO AND THE SOUTH TO NORTH ORIENTED CANYONS
SOUTH OF THERE. THESE AREAS WILL LIKELY SEE WINDS OF 25 TO 35 MPH
OR SO TONIGHT...THEN DIMINISH AS THE FRONT PASSES IN THE EARLY
MORNING.
PRECIPITATION IS EXPECTED TO GRADUALLY DECREASE CHRISTMAS EVE AS
DRY AND STABLE AIR MOVES OVER THE NORTHERN ROCKIES ALONG WITH A
WEAK RIDGE OF HIGH PRESSURE. A BRIEF PERIOD OF SNOW BANDING COULD
OCCUR IN THE EARLY EVENING...BUT WILL DIMINISH BY CHRISTMAS MORNING
AS THE STABILITY PROFILE BECOMES LESS FAVORABLE ALOFT. DRIER
CONDITIONS WITH CLEARING SKIES OVER THE LARGER VALLEYS WILL
PERSIST INTO CHRISTMAS DAY.
BEYOND TUESDAY...A FAIRLY ACTIVE PATTERN WILL PERSIST THROUGH THE
WEEK WITH INDIVIDUAL SHORTWAVE FEATURES PERIODICALLY BRINGING SNOW
SHOWERS TO THE REGION. TEMPERATURES ARE EXPECTED TO REMAIN AT OR
SLIGHTLY BELOW SEASONAL NORMALS FOR THIS TIME FRAME.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER STORM WATCH FROM THIS EVENING THROUGH MONDAY AFTERNOON
ABOVE 3500 FEET FOR LOWER CLARK FORK REGION.
WINTER STORM WATCH FROM THIS EVENING THROUGH MONDAY AFTERNOON
ABOVE 3500 FEET FOR BITTERROOT/SAPPHIRE MOUNTAINS.
ID...WINTER STORM WATCH FROM THIS EVENING THROUGH MONDAY AFTERNOON
ABOVE 3500 FEET FOR NORTHERN CLEARWATER MOUNTAINS-SOUTHERN
CLEARWATER MOUNTAINS.
WINTER STORM WATCH FROM LATE TONIGHT THROUGH MONDAY AFTERNOON
FOR EASTERN LEMHI COUNTY.
&&
UPDATE...HENRY
PREVIOUS DISCUSSION...WHITMORE/VIAHazardous weather outlook, Dec 23, 3:21 AM PST, 9 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MISSOULA MT 421 AM MST SUN DEC 23 2007 IDZ007>009-MTZ001-002-043-232200- OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- WESTERN LEMHI COUNTY-KOOTENAI/CABINET REGION-WEST GLACIER REGION- POTOMAC/SEELEY LAKE REGION- 421 AM MST SUN DEC 23 2007 /321 AM PST SUN DEC 23 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO...NORTHWEST MONTANA AND WEST CENTRAL MONTANA. .DAY ONE...TODAY EXPECT A FEW LIGHT SNOW SHOWERS MAINLY THROUGH THE MORNING HOURS. .DAYS TWO THROUGH SEVEN...TONIGHT THROUGH SATURDAY A MOIST WEATHER SYSTEM WILL MOVE OVER NORTHERN IDAHO AND NORTHWEST MONTANA THIS EVENING...THEN SHIFT TO SOUTHERN IDAHO DURING THE DAY MONDAY. THIS STORM COULD PRODUCE 4 TO 8 INCHES IN THE MOUNTAINS AND UP TO 4 INCHES IN THE VALLEYS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 12:53 PM PST | Heavy Snow Warning | MSO | Idaho | 24 hr |
Nearby
Snow Advisories in Montana, 2007Snow Advisories in Idaho, 2007Every snow advisory in 2007
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.