Alert archive / Montana / Snow Advisories in 2007
Snow Advisory 48, NWS Missoula, MT
NWS Missoula, MT issued this snow advisory at Dec 29, 2007, 5:23 AM MST for 5 counties in Montana. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Dec 29, 2007, 5:23 AM MST (12:23 UTC)
- Expired
- Dec 29, 2007, 12:50 PM MST
- In force
- 7 hr
- Issued by
- NWS Missoula, MT
Counties Flathead County, MT, Lake County, MT, Missoula County, MT, Ravalli County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 40 km from the middle of the area, began a volume at 12:28 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, 0.4 hours before the alert went out and 165 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
- 548 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 77 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 291223 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 523 AM MST SAT DEC 29 2007 ...SEVERAL WINTER STORMS EXPECTED TO IMPACT THE REGION... .A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL PUSH A SERIES OF WINTER STORMS ACROSS THE AREA THROUGH SUNDAY AFTERNOON. HEAVY SNOWFALL AMOUNTS ARE EXPECTED IN THE MOUNTAINS...WITH LESSER AMOUNTS EXPECTED IN THE VALLEYS. WINDS WILL INTENSIFY ON SUNDAY ACROSS SOME OF THE HIGHER TERRAIN CREATING BLOWING AND DRIFTING SNOWFALL IN ADDITION TO THE FALLING SNOW. THERE IS A CHANCE THAT THIS EVENT COULD CONTINUE INTO MONDAY AS THE ENERGETIC NORTHWESTERLY FLOW REMAINS OVERHEAD. MTZ001-292200- /O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/ KOOTENAI/CABINET REGION- 523 AM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY ABOVE 3000 FEET... A HEAVY SNOW WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 8 TO 13 INCHES WITH LOCAL AMOUNTS UP TO 17 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 3000 FEET. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ007-292200- /O.CON.KMSO.HS.W.0024.071229T1800Z-071231T0600Z/ BUTTE/BLACKFOOT REGION- 523 AM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM MST SUNDAY ABOVE 6000 FEET... A HEAVY SNOW WARNING ABOVE 6000 FEET REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST TOWARD MCDONALD PASS. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ010-292200- /O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/ EASTERN LEMHI COUNTY- 523 AM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY ABOVE 6500 FEET... A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 6 TO 12 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL PASS. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ005-006-MTZ006-292200- /O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- BITTERROOT/SAPPHIRE MOUNTAINS- 523 AM MST SAT DEC 29 2007 /423 AM PST SAT DEC 29 2007/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ SUNDAY. TOTAL SNOWFALL AMOUNTS OF 13 TO 18 INCHES WITH LOCAL AMOUNTS UP TO 24 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT... INCLUDING LOLO AND LOST TRAIL PASSES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ004-292200- /O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/ LOWER CLARK FORK REGION- 523 AM MST SAT DEC 29 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY ABOVE 3000 FEET... A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 11 TO 16 INCHES WITH LOCAL AMOUNTS UP TO 24 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 3000 FEET. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOOKOUT PASS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ002-043-292200- /O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 523 AM MST SAT DEC 29 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY ABOVE 4000 FEET... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 9 TO 15 INCHES WITH LOCAL AMOUNTS UP TO 21 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 4000 FEET. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING MARIAS PASS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ003-292200- /O.NEW.KMSO.SN.Y.0048.071229T1223Z-071230T1800Z/ FLATHEAD/MISSION VALLEYS- 523 AM MST SAT DEC 29 2007 ...SNOW ADVISORY IN EFFECT UNTIL 11 AM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM MST SUNDAY. PERIODS OF SNOW WILL PRODUCE 3 TO 6 INCHES OF SNOWFALL ACROSS THE FLATHEAD AND MISSION VALLEYS THROUGH SUNDAY MORNING. KALISPELL...COLUMBIA FALLS...WHITEFISH AND POLSON WILL BE AMONG THE AREAS IMPACTED BY THE INTERMITTENT HEAVY SNOW SHOWERS. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ005-292200- /O.NEW.KMSO.SN.Y.0048.071229T1223Z-071230T1800Z/ MISSOULA/BITTERROOT VALLEYS- 523 AM MST SAT DEC 29 2007 ...SNOW ADVISORY IN EFFECT UNTIL 11 AM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM MST SUNDAY. PERIODS OF SNOW WILL PRODUCE 2 TO 4 INCHES OF SNOWFALL ACROSS THE MISSOULA VALLEY AND ALONG THE BENCHES OF THE BITTERROOT VALLEY THROUGH SUNDAY MORNING. THE US HIGHWAY 93 CORRIDOR BETWEEN LOLO AND DARBY CAN EXPECT TO SEE UP TO 2 INCHES FROM THE INTERMITTENT HEAVY SNOW SHOWERS DURING THIS PERIOD. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ007-008-292200- /O.CON.KMSO.SB.Y.0012.071229T2100Z-071231T0000Z/ OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 423 AM PST SAT DEC 29 2007 ...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 4 PM PST SUNDAY ABOVE 3000 FEET... A SNOW AND BLOWING SNOW ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 4 PM PST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 5 TO 9 INCHES ARE EXPECTED ABOVE 3000 FEET FROM EARLY THIS AFTERNOON THROUGH SUNDAY AFTERNOON. BREEZY WEST TO NORTHWEST WINDS WILL CREATE LOCAL BLOWING AND DRIFTING SNOW...ESPECIALLY OVER THE CAMAS PRAIRIE. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$
3 follow-up statements
000 WWUS45 KMSO 291506 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 806 AM MST SAT DEC 29 2007 ...SEVERAL WINTER STORMS EXPECTED TO IMPACT THE REGION... .A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL PUSH A SERIES OF WINTER STORMS ACROSS THE AREA THROUGH SUNDAY AFTERNOON. HEAVY SNOWFALL AMOUNTS ARE EXPECTED IN THE MOUNTAINS...WITH LESSER AMOUNTS EXPECTED IN THE VALLEYS. WINDS WILL INTENSIFY ON SUNDAY ACROSS SOME OF THE HIGHER TERRAIN CREATING BLOWING AND DRIFTING SNOWFALL IN ADDITION TO THE FALLING SNOW. THERE IS A CHANCE THAT THIS EVENT COULD CONTINUE INTO MONDAY AS THE ENERGETIC NORTHWESTERLY FLOW REMAINS OVERHEAD. MTZ001-292200- /O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/ KOOTENAI/CABINET REGION- 806 AM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 8 TO 13 INCHES WITH LOCAL AMOUNTS UP TO 18 INCHES ABOVE 3000 FEET ARE EXPECTED BY LATE SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ007-292200- /O.CON.KMSO.HS.W.0024.071229T1800Z-071231T0600Z/ BUTTE/BLACKFOOT REGION- 806 AM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM MST SUNDAY ABOVE 6000 FEET... A HEAVY SNOW WARNING ABOVE 6000 FEET REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST TOWARD MCDONALD PASS. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ010-292200- /O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/ EASTERN LEMHI COUNTY- 806 AM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY ABOVE 6500 FEET... A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 8 TO 12 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL PASS. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ005-006-MTZ004-006-292200- /O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS- 806 AM MST SAT DEC 29 2007 /706 AM PST SAT DEC 29 2007/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ SUNDAY. TOTAL SNOWFALL AMOUNTS OF 13 TO 18 INCHES WITH LOCAL AMOUNTS UP TO 24 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT... INCLUDING LOLO AND LOST TRAIL PASSES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ002-043-292200- /O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 806 AM MST SAT DEC 29 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY ABOVE 4000 FEET... A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 9 TO 15 INCHES WITH LOCAL AMOUNTS UP TO 21 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 4000 FEET. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING MARIAS PASS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IDZ007-008-292200- /O.EXT.KMSO.SB.Y.0012.071229T1506Z-071231T0000Z/ OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 706 AM PST SAT DEC 29 2007 ...SNOW AND BLOWING SNOW ADVISORY NOW IN EFFECT UNTIL 4 PM PST SUNDAY... THE SNOW AND BLOWING SNOW ADVISORY IS NOW IN EFFECT UNTIL 4 PM PST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 5 TO 9 INCHES ARE EXPECTED THROUGH SUNDAY AFTERNOON. BREEZY WEST TO NORTHWEST WINDS WILL CREATE LOCAL BLOWING AND DRIFTING SNOW...ESPECIALLY OVER THE CAMAS PRAIRIE. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$ MTZ003-292200- /O.CON.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/ FLATHEAD/MISSION VALLEYS- 806 AM MST SAT DEC 29 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. PERIODS OF SNOW WILL PRODUCE 3 TO 6 INCHES OF SNOWFALL ACROSS THE FLATHEAD AND MISSION VALLEYS THROUGH SUNDAY MORNING. KALISPELL... COLUMBIA FALLS...WHITEFISH AND POLSON WILL BE AMONG THE AREAS IMPACTED BY THE INTERMITTENT HEAVY SNOW SHOWERS. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ005-292200- /O.CON.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/ MISSOULA/BITTERROOT VALLEYS- 806 AM MST SAT DEC 29 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. PERIODS OF SNOW WILL PRODUCE 2 TO 4 INCHES OF SNOWFALL ACROSS THE MISSOULA VALLEY AND ALONG THE BENCHES OF THE BITTERROOT VALLEY THROUGH SUNDAY MORNING. THE US HIGHWAY 93 CORRIDOR BETWEEN LOLO AND DARBY CAN EXPECT TO SEE UP TO 2 INCHES FROM THE INTERMITTENT HEAVY SNOW SHOWERS DURING THIS PERIOD. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 291717 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1017 AM MST SAT DEC 29 2007 .A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL CONTINUE TO PUSH WINTER WEATHER ACROSS THE AREA THROUGH SUNDAY AFTERNOON. HEAVY SNOWFALL AMOUNTS ARE EXPECTED IN THE MOUNTAINS...WITH LESSER AMOUNTS EXPECTED IN THE VALLEYS. WINDS WILL INTENSIFY ON SUNDAY ACROSS SOME OF THE HIGHER TERRAIN CREATING BLOWING AND DRIFTING SNOWFALL IN ADDITION TO THE FALLING SNOW. THERE IS A CHANCE THAT THIS EVENT COULD CONTINUE INTO MONDAY AS THE ENERGETIC NORTHWESTERLY FLOW REMAINS OVERHEAD. IDZ007-008-291830- /O.CAN.KMSO.SB.Y.0012.000000T0000Z-071231T0000Z/ OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 917 AM PST SAT DEC 29 2007 ...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW AND BLOWING SNOW ADVISORY. ANOTHER WINTER WEATHER HIGHLIGHT FOR TONIGHT MAY BE ISSUED THIS AFTERNOON. AN ADDITIONAL 1-2 INCHES MAY ACCUMULATE THIS AFTERNOON AS SHOWERS MOVE TROUGH THE REGION. $$ MTZ005-291830- /O.CAN.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/ MISSOULA/BITTERROOT VALLEYS- 1017 AM MST SAT DEC 29 2007 ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW ADVISORY. ANOTHER WINTER WEATHER HIGHLIGHT FOR TONIGHT MAY BE ISSUED THIS AFTERNOON. AN ADDITIONAL 1-2 INCHES MAY ACCUMULATE THIS AFTERNOON AS SHOWERS MOVE TROUGH THE REGION. $$ MTZ007-292300- /O.EXT.KMSO.HS.W.0024.071230T0000Z-071231T0600Z/ BUTTE/BLACKFOOT REGION- 1017 AM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING NOW IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM MST SUNDAY ABOVE 6000 FEET... THE HEAVY SNOW WARNING ABOVE 6000 FEET IS NOW IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST TOWARD MCDONALD PASS. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ001-292300- /O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/ KOOTENAI/CABINET REGION- 1017 AM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. ALTHOUGH SNOW IS TAPERING OFF THIS MORNING...ANOTHER POTENT WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM WILL BRING MORE SNOW AND WINTER WEATHER. TOTAL SNOWFALL AMOUNTS OF 8 TO 13 INCHES WITH LOCAL AMOUNTS UP TO 18 INCHES ABOVE 3000 FEET ARE EXPECTED BY LATE SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ010-292300- /O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/ EASTERN LEMHI COUNTY- 1017 AM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY ABOVE 6500 FEET... A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 8 TO 12 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL PASS. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ005-006-MTZ004-006-292300- /O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS- 1017 AM MST SAT DEC 29 2007 /917 AM PST SAT DEC 29 2007/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ SUNDAY. ALTHOUGH SNOW IS TAPERING OFF THIS MORNING...ANOTHER POTENT WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM WILL BRING MORE SNOW AND WINTER WEATHER. TOTAL SNOWFALL AMOUNTS OF 13 TO 18 INCHES WITH LOCAL AMOUNTS UP TO 24 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT... INCLUDING LOLO AND LOST TRAIL PASSES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ002-043-292300- /O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 1017 AM MST SAT DEC 29 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. ALTHOUGH SNOW IS TAPERING OFF THIS MORNING...ANOTHER POTENT WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM WILL BRING MORE SNOW AND WINTER WEATHER. TOTAL SNOWFALL AMOUNTS OF 9 TO 15 INCHES WITH LOCAL AMOUNTS UP TO 21 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 4000 FEET. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING MARIAS PASS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ003-292300- /O.CON.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/ FLATHEAD/MISSION VALLEYS- 1017 AM MST SAT DEC 29 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. PERIODS OF SNOW WILL PRODUCE 3 TO 6 INCHES OF SNOWFALL ACROSS THE FLATHEAD AND MISSION VALLEYS THROUGH SUNDAY MORNING. KALISPELL... COLUMBIA FALLS...WHITEFISH AND POLSON WILL BE AMONG THE AREAS IMPACTED BY THE INTERMITTENT HEAVY SNOW SHOWERS. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 291950 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1250 PM MST SAT DEC 29 2007 .A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL CONTINUE TO PUSH WINTER WEATHER ACROSS THE AREA THROUGH SUNDAY AFTERNOON. HEAVY SNOWFALL AMOUNTS ARE EXPECTED IN THE MOUNTAINS...WITH LESSER AMOUNTS EXPECTED IN THE VALLEYS. WINDS WILL INTENSIFY ON SUNDAY ACROSS SOME OF THE HIGHER TERRAIN CREATING BLOWING AND DRIFTING SNOWFALL IN ADDITION TO THE FALLING SNOW. THERE IS A CHANCE THAT THIS EVENT COULD CONTINUE INTO MONDAY AS THE ENERGETIC NORTHWESTERLY FLOW REMAINS OVERHEAD. MTZ003-292100- /O.CAN.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/ FLATHEAD/MISSION VALLEYS- 1250 PM MST SAT DEC 29 2007 ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW ADVISORY. ANOTHER WINTER WEATHER HIGHLIGHT FOR TONIGHT MAY BE ISSUED THIS AFTERNOON. AN ADDITIONAL 1-2 INCHES MAY ACCUMULATE THIS AFTERNOON AS SHOWERS MOVE TROUGH THE REGION. $$ MTZ001-292300- /O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/ KOOTENAI/CABINET REGION- 1250 PM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. ALTHOUGH SNOW IS TAPERING OFF THIS MORNING...ANOTHER POTENT WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM WILL BRING MORE SNOW AND WINTER WEATHER. TOTAL SNOWFALL AMOUNTS OF 8 TO 13 INCHES WITH LOCAL AMOUNTS UP TO 18 INCHES ABOVE 3000 FEET ARE EXPECTED BY LATE SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ MTZ007-292300- /O.CON.KMSO.HS.W.0024.071230T0000Z-071231T0600Z/ BUTTE/BLACKFOOT REGION- 1250 PM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM MST SUNDAY ABOVE 6000 FEET... A HEAVY SNOW WARNING ABOVE 6000 FEET REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST TOWARD MCDONALD PASS. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ010-292300- /O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/ EASTERN LEMHI COUNTY- 1250 PM MST SAT DEC 29 2007 ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY ABOVE 6500 FEET... A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. TOTAL SNOWFALL AMOUNTS OF 8 TO 12 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL PASS. A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. $$ IDZ005-006-MTZ004-006-292300- /O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS- 1250 PM MST SAT DEC 29 2007 /1150 AM PST SAT DEC 29 2007/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ SUNDAY. ALTHOUGH SNOW IS TAPERING OFF THIS MORNING...ANOTHER POTENT WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM WILL BRING MORE SNOW AND WINTER WEATHER. TOTAL SNOWFALL AMOUNTS OF 13 TO 18 INCHES WITH LOCAL AMOUNTS UP TO 24 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT... INCLUDING LOLO AND LOST TRAIL PASSES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ002-043-292300- /O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 1250 PM MST SAT DEC 29 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. ALTHOUGH SNOW IS TAPERING OFF THIS MORNING...ANOTHER POTENT WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM WILL BRING MORE SNOW AND WINTER WEATHER. TOTAL SNOWFALL AMOUNTS OF 9 TO 15 INCHES WITH LOCAL AMOUNTS UP TO 21 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 4000 FEET. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT... INCLUDING MARIAS PASS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$
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 29, 2:36 AM MST, 2 hours 47 minutes earlier.
Area forecast discussion, Dec 29, 2:36 AM MST, 2 hours 47 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
236 AM MST SAT DEC 29 2007
DISCUSSION...A STRONG AND MOIST WEST TO NORTHWEST FLOW WILL
PERSIST OVER WESTERN MONTANA AND NORTH CENTRAL IDAHO THROUGH
SUNDAY AFTERNOON. DURING THIS PERIOD A SERIES OF DISTURBANCES WILL
MOVE OVER THE AREA IN THE FLOW PRODUCING HEAVY SNOWFALL IN THE
MOUNTAINS. SNOWFALL AMOUNTS WILL BE ENHANCED BY THE EXPECTED
STRONG UPSLOPE FLOW AND AN UPPER LEVEL JET STREAM THAT WILL
POSITION ITSELF OVER THE AREA LATER THIS AFTERNOON THROUGH SUNDAY.
AS THE PRESSURE GRADIENTS AND LOW LEVEL WIND FLOW INTENSIFY ON
SUNDAY...WINDS WILL INCREASE ACROSS THE HIGHER TERRAIN. FOR THIS
REASON...WINTER STORM WARNINGS HAVE BEEN ISSUED FOR NORTH CENTRAL
IDAHO...THE BITTERROOT/SAPPHIRE MOUNTAINS...LOOKOUT PASS
AREA...AND THE GLACIER PARK AREA (INCLUDING US HIGHWAY 2 NEAR
MARIAS PASS.)
THERE IS A POSSIBILITY THAT THE WARNINGS COULD BE EXTENDED INTO
MONDAY (AS HEAVY SNOW WARNINGS.) THOUGH THE LOW LEVEL WIND FLOW
WEAKENS...THE NW FLOW ALOFT IS EXPECTED TO INTENSIFY AS THE UPPER
LEVEL JET ONCE AGAIN MOVES OVER THE AREA. AS A RESULT...HAVE KEPT
LIKELY POPS IN THE FORECAST THROUGH MONDAY.
AN UPPER LEVEL RIDGE BUILDS INTO THE INTERMOUNTAIN WEST ON TUESDAY
BRINGING WITH IT DRIER AIR ALOFT THAT WILL LEAD TO SOME CLEAR
SKIES. A LITTLE MOISTURE LEFT OVER IN THE LOW LEVELS MAY BE JUST
ENOUGH FOR SOME FOG EARLY TUESDAY. WITH THE FRESH SNOW COVER AND CLEAR
SKIES...VALLEY INVERSIONS WILL SETUP AND WITH WARM AIR MOVING IN
ALOFT IT WILL BE HARD TO MIX THEM OUT. A STRONG PRESSURE GRADIENT
ON WEDNESDAY SHOULD BE ENOUGH TO MIX OUT SOME OF THE LARGER
VALLEYS ACROSS WESTERN MONTANA AND CENTRAL IDAHO. THE MISSOULA
VALLEY NORTH TO EXTREME NORTHWEST MONTANA WILL LIKELY NOT HAVE A
STRONG ENOUGH GRADIENT TO MIX OUT THE INVERSION LEAVING THESE
LOCATIONS A BIT COOLER. THE RIDGE WILL START TO BREAK DOWN ON
THURSDAY AS OUR NEXT PACIFIC STORM APPROACHES BRINGING THE CHANCE
OF PRECIPITATION BY THURSDAY NIGHT.
AVIATION...SNOW WILL OBSCURE MOUNTAINS AND PEAKS THROUGH SUNDAY
AS A SERIES OF WINTER WEATHER SYSTEMS MOVE ACROSS THE AREA.
AIRFIELDS AT KMSO AND KGPI MAY PICK UP A FEW INCHES OF SNOW.
BREEZY WINDS AND FALLING SNOW NEAR GRANGEVILLE MAY CREATE LOCAL
WHITEOUT CONDITIONS THROUGH SUNDAY AFTERNOON.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER STORM WARNING UNTIL 5 PM MST SUNDAY FOR
BITTERROOT/SAPPHIRE MOUNTAINS.
WINTER STORM WARNING UNTIL 5 PM MST SUNDAY ABOVE 4000 FEET FOR
POTOMAC/SEELEY LAKE REGION-WEST GLACIER REGION.
HEAVY SNOW WARNING UNTIL 5 PM MST SUNDAY ABOVE 3000 FEET FOR
KOOTENAI/CABINET REGION.
HEAVY SNOW WARNING FROM 11 AM THIS MORNING TO 11 PM MST SUNDAY
ABOVE 6000 FEET FOR BUTTE/BLACKFOOT REGION.
WINTER STORM WARNING UNTIL 5 PM MST SUNDAY ABOVE 3000 FEET FOR
LOWER CLARK FORK REGION.
ID...SNOW AND BLOWING SNOW ADVISORY FROM 1 PM THIS AFTERNOON TO 4 PM
PST SUNDAY ABOVE 3000 FEET FOR LOWER HELLS CANYON/SALMON
RIVER REGION-OROFINO/GRANGEVILLE REGION.
WINTER STORM WARNING UNTIL 4 PM PST SUNDAY FOR NORTHERN
CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS.
HEAVY SNOW WARNING UNTIL 5 PM MST SUNDAY ABOVE 6500 FEET FOR
EASTERN LEMHI COUNTY.
&&
SHORT TERM...HENRY
LONG TERM....LOEFFELBEIN
AVIATION...HENRYHazardous weather outlook, Dec 29, 3:03 AM MST, 2 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MISSOULA MT 303 AM MST SAT DEC 29 2007 MTZ003-005-292200- FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS- 303 AM MST SAT DEC 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST MONTANA AND WEST CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT LIGHT TO MODERATE SNOWFALL AMOUNTS ARE POSSIBLE ACROSS THE VALLEYS LATER TODAY THROUGH SUNDAY. WINTER WEATHER HIGHLIGHTS MAY BE NEEDED. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY ACCUMULATING SNOWFALL MAY CONTINUE INTO SUNDAY NIGHT AS THE ACTIVE PATTERN PERSISTS OVER THE AREA. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. IDZ009-292200- WESTERN LEMHI COUNTY- 303 AM MST SAT DEC 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO. .DAY ONE...TODAY AND TONIGHT LIGHT TO MODERATE SNOWFALL ACCUMULATIONS ARE POSSIBLE NEAR SHOUP THIS AFTERNOON AND TONIGHT. WINTER WEATHER HIGHLIGHTS MAY BE NEEDED. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY HAZARDOUS WEATHER IS NOT EXPECTED. .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 29, 2:27 AM MST | Winter Storm Warning | MSO | Flathead, Granite, Lake, Mineral, Missoula, Powell and 2 more | 36 hr |
| Dec 29, 3:18 PM MST | Snow and Blowing Snow Advisory | MSO | Flathead, Granite, Lake, Mineral, Missoula, Powell and 2 more | 29 hr |
| Dec 29, 3:18 PM MST | Snow Advisory | MSO | Flathead, Lake, Missoula, Ravalli, Sanders | 24 hr |
Nearby
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.