Alert archive / Montana / Winter Storm Warnings in 2008
Winter Storm Warning 18, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Dec 24, 2008, 2:49 AM PST for Clearwater County, Idaho County, Idaho; 7 counties in Montana. It took effect at Dec 24, 2008, 4:00 PM PST. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 24, 2008, 2:49 AM PST (10:49 UTC)
- In effect from
- Dec 24, 2008, 4:00 PM PST
- Expired
- Dec 25, 2008, 4:00 PM PST
- In force
- 24 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID, Flathead County, MT, Granite County, MT, Lincoln County, MT, Mineral County, MT, Missoula County, MT, Ravalli County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 53 km from the middle of the area, began a volume at 10:55 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 00:00Z, 10.8 hours before the alert went out and 146 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
- 653 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 153 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 241049 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 349 AM MST WED DEC 24 2008 ...ANOTHER WINTER STORM WILL IMPACT WESTERN MONTANA AND CENTRAL IDAHO THROUGH CHRISTMAS... .A VERY MOIST AND DYNAMIC WINTER STORM IS COMING ASHORE THIS MORNING AND WILL BEGIN TO CROSS THE NORTHERN ROCKIES REGION DURING THE AFTERNOON HOURS. DEEP LIFTING OF WARM...MOIST AIR OVER THE DOME OF COLD AIR CURRENTLY OVER THE REGION WILL PRODUCE PERSISTENT LIGHT TO MODERATE SNOWFALL THIS AFTERNOON THROUGH CHRISTMAS DAY OVER NORTHWEST MONTANA AND NORTH CENTRAL IDAHO. THE SNOW WILL INTENSIFY OVERNIGHT WEDNESDAY INTO CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. CURRENT TIMING PLACES THIS FEATURE INTO WESTERN MONTANA EARLY CHRISTMAS MORNING...SPREADING MODERATE TO HEAVY SNOWFALL EAST OF THE BITTERROOTS. SHOWERY CONDITIONS BEHIND THE FRONT WILL CONTINUE ACCUMULATING SNOWFALL THROUGH CHRISTMAS DAY. IDZ005-006-MTZ001-004-006-241900- /O.UPG.KMSO.WS.A.0022.081224T1800Z-081226T0000Z/ /O.NEW.KMSO.WS.W.0018.081225T0000Z-081226T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS- 349 AM MST WED DEC 24 2008 /249 AM PST WED DEC 24 2008/ ...WINTER STORM WARNING IN EFFECT FROM 5 PM MST /4 PM PST/ THIS AFTERNOON TO 5 PM MST /4 PM PST/ THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 5 PM MST /4 PM PST/ THIS AFTERNOON TO 5 PM MST /4 PM PST/ THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. LIGHT SNOW WILL BEGIN TO ACCUMULATE THROUGHOUT THE DAY BECOMING HEAVIER LATE THIS AFTERNOON AND OVERNIGHT THROUGH CHRISTMAS DAY. MOST AREAS WILL SEE TOTAL SNOWFALL OF 8 TO 12 INCHES BY THE END OF CHRISTMAS DAY WITH UP TO 16 INCHES POSSIBLE IN THE MOUNTAINS. TRAVEL OVER LOOKOUT...LOLO...AND LOST TRAIL PASSES WILL BE IMPACTED BY THIS STORM. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ002-241900- /O.UPG.KMSO.WS.A.0022.081224T1800Z-081226T0000Z/ /O.NEW.KMSO.WW.Y.0020.081225T0600Z-081226T0000Z/ WEST GLACIER REGION- 349 AM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. LIGHT SNOW WILL BEGIN TO FALL LATE THIS AFTERNOON...GRADUALLY INCREASING OVERNIGHT AND CONTINUING THROUGH CHRISTMAS DAY. THE HEAVIEST PRECIPITATION CAN BE EXPECTED ON CHRISTMAS DAY AS A COLD FRONT APPROACHES THE REGION. A TOTAL OF 3 TO 6 INCHES OF SNOWFALL CAN BE EXPECTED BY LATE CHRISTMAS DAY WITH LOCAL AREAS AND HIGHER MOUNTAINS RECEIVING UP TO 8 INCHES OF ADDITIONAL SNOWFALL. TRAVEL OVER MARIAS PASS MAY BECOME DIFFICULT AT TIMES. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ003-241900- /O.NEW.KMSO.WW.Y.0020.081225T0000Z-081226T0000Z/ FLATHEAD/MISSION VALLEYS- 349 AM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST THURSDAY. LIGHT SNOW WILL GRADUALLY BECOME MORE INTENSE OVERNIGHT AND THROUGH CHRISTMAS DAY AS A COLD FRONT APPROACHES THE REGION. MOST AREAS CAN EXPECT TO SEE 3 TO 6 INCHES OF TOTAL SNOWFALL BY THE END OF CHRISTMAS DAY. THIS STORM WILL IMPACT BOTH THE FLATHEAD AND MISSION VALLEYS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ005-241900- /O.NEW.KMSO.WW.Y.0020.081225T0000Z-081226T0000Z/ MISSOULA/BITTERROOT VALLEYS- 349 AM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST THURSDAY. LIGHT SNOW WILL GRADUALLY BECOME MORE INTENSE OVERNIGHT AND THROUGH CHRISTMAS DAY AS A COLD FRONT APPROACHES THE REGION. MOST AREAS CAN EXPECT TO SEE 3 TO 6 INCHES OF TOTAL SNOWFALL BY THE END OF CHRISTMAS DAY. THIS STORM WILL IMPACT BOTH THE MISSOULA AND BITTERROOT VALLEYS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ007-241900- /O.NEW.KMSO.WW.Y.0020.081225T0000Z-081225T1800Z/ OROFINO/GRANGEVILLE REGION- 249 AM PST WED DEC 24 2008 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST THURSDAY. LIGHT SNOW WILL BEGIN TO FALL...MAINLY NORTH OF KOOSKIA...LATE THIS AFTERNOON AND GRADUALLY BECOME HEAVIER OVERNIGHT INTO CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. LOCATIONS SOUTH TOWARDS GRANGEVILLE WILL INITIALLY BE DOWN SLOPED EXPERIENCING SOUTH WINDS OF 25 TO 40 MPH. ALTHOUGH ACCUMULATING SNOWFALL IS NOT EXPECTED UNTIL AFTER 10 PM AROUND GRANGEVILLE...GUSTY WINDS WILL PRODUCE AREAS OF BLOWING SNOW...ESPECIALLY ACROSS THE CAMAS PRAIRIE. 3 TO 6 INCHES OF TOTAL SNOWFALL ARE EXPECTED THROUGHOUT THE AREA BY MID DAY ON CHRISTMAS. A SECONDARY WEATHER FEATURE MAY MOVE OVER THE AREA CHRISTMAS NIGHT WITH THE POTENTIAL TO BRING AN ADDITIONAL 2 TO 4 INCHES OF SNOWFALL BY FRIDAY MORNING.. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ043-241900- /O.NEW.KMSO.WW.Y.0020.081225T0600Z-081226T0000Z/ POTOMAC/SEELEY LAKE REGION- 349 AM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. LIGHT SNOW WILL GRADUALLY BECOME MORE INTENSE OVERNIGHT AND THROUGH CHRISTMAS DAY AS A COLD FRONT APPROACHES THE REGION. MOST AREAS CAN EXPECT TO SEE 3 TO 6 INCHES OF TOTAL SNOWFALL BY THE END OF CHRISTMAS DAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
6 follow-up statements
000 WWUS45 KMSO 241835 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1135 AM MST WED DEC 24 2008 ...ANOTHER WINTER STORM WILL MOVE THROUGH WESTERN MONTANA AND CENTRAL IDAHO THROUGH CHRISTMAS... ...DIFFICULT TRAVEL OVER LOOKOUT AND LOLO PASSES EXPECTED... .A MOIST AND DYNAMIC WINTER STORM IS MOVING ASHORE AND WILL BEGIN TO CROSS THE NORTHERN ROCKIES REGION LATE THIS AFTERNOON THROUGH THE EVENING HOURS. DEEP LIFTING OF WARM...MOIST AIR OVER THE DOME OF COLD AIR CURRENTLY OVER THE REGION WILL PRODUCE PERSISTENT LIGHT TO MODERATE SNOWFALL THIS AFTERNOON THROUGH CHRISTMAS DAY OVER NORTHWEST MONTANA AND NORTH CENTRAL IDAHO. THE SNOW WILL INTENSIFY OVERNIGHT INTO CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. CURRENT TIMING MOVES THE COLD FRONT THROUGH WESTERN MONTANA BY LATE CHRISTMAS MORNING...SPREADING LIGHT TO MODERATE SNOWFALL AT TIMES. SHOWERY CONDITIONS BEHIND THE FRONT WILL CONTINUE LIGHT ACCUMULATING SNOWFALL THROUGH CHRISTMAS DAY. IDZ005-006-MTZ001-004-006-250330- /O.CON.KMSO.WS.W.0018.081225T0000Z-081226T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS- 1135 AM MST WED DEC 24 2008 /1035 AM PST WED DEC 24 2008/ ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM MST /4 PM PST/ THIS AFTERNOON TO 5 PM MST /4 PM PST/ THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM MST /4 PM PST/ THIS AFTERNOON TO 5 PM MST /4 PM PST/ THURSDAY. LIGHT SNOW WILL BEGIN TO ACCUMULATE THROUGHOUT THE DAY BECOMING HEAVIER LATE THIS AFTERNOON AND OVERNIGHT THROUGH CHRISTMAS DAY. MOST AREAS WILL SEE TOTAL SNOWFALL OF 8 TO 12 INCHES BY THE END OF CHRISTMAS DAY WITH UP TO 16 INCHES POSSIBLE IN THE MOUNTAINS. TRAVEL OVER LOOKOUT...LOLO...AND LOST TRAIL PASSES WILL BE DIFFICULT AT TIMES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ003-250330- /O.CON.KMSO.WW.Y.0020.081225T0000Z-081226T0000Z/ FLATHEAD/MISSION VALLEYS- 1135 AM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST THURSDAY. PERIODS OF LIGHT SNOW WILL BEGIN THIS EVENING GRADUALLY BECOME MORE INTENSE OVERNIGHT AND THROUGH CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. SNOW SHOWERS ARE LIKELY BEHIND THE FRONT IN THE AFTERNOON AND EVENING OF CHRISTMAS. MOST AREAS CAN EXPECT TO SEE 2 TO 4 INCHES OF TOTAL SNOWFALL BY THE END OF CHRISTMAS DAY. TRAVEL OVER EVARO HILL MAY BE DIFFICULT AT TIMES. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ005-250330- /O.CON.KMSO.WW.Y.0020.081225T0000Z-081226T0000Z/ MISSOULA/BITTERROOT VALLEYS- 1135 AM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST THURSDAY. PERIODS OF LIGHT SNOW WILL BEGIN LATE THIS EVENING AND CONTINUE THROUGH CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. SNOW SHOWERS WILL CONTINUE IN THE AFTERNOON AND EVENING OF CHRISTMAS. MOST AREAS CAN EXPECT TO SEE 1 TO 3 INCHES OF TOTAL SNOWFALL BY THE END OF CHRISTMAS DAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ007-250330- /O.CON.KMSO.WW.Y.0020.081225T0000Z-081225T1800Z/ OROFINO/GRANGEVILLE REGION- 1035 AM PST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST THURSDAY. LIGHT SNOW WILL BEGIN TO FALL...MAINLY NORTH OF KOOSKIA...THIS AFTERNOON AND GRADUALLY BECOME HEAVIER OVERNIGHT INTO CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. LOCATIONS SOUTH TOWARDS GRANGEVILLE WILL INITIALLY BE DOWN SLOPED EXPERIENCING SOUTH WINDS OF 25 TO 40 MPH THIS EVENING. THOUGH ACCUMULATING SNOWFALL IS NOT EXPECTED UNTIL AFTER 10 PM AROUND GRANGEVILLE... GUSTY WINDS WILL PRODUCE AREAS OF BLOWING SNOW...ESPECIALLY ACROSS THE CAMAS PRAIRIE. 3 TO 6 INCHES OF TOTAL SNOWFALL ARE EXPECTED THROUGHOUT THE AREA BY MID DAY ON CHRISTMAS. A SECONDARY WEATHER FEATURE MAY MOVE OVER THE AREA CHRISTMAS NIGHT WITH THE POTENTIAL TO BRING AN ADDITIONAL 2 TO 4 INCHES OF SNOWFALL BY FRIDAY MORNING.. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ002-043-250330- /O.CON.KMSO.WW.Y.0020.081225T0600Z-081226T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 1135 AM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. LIGHT SNOW WILL BEGIN TO FALL LATE THIS AFTERNOON...GRADUALLY INCREASING OVERNIGHT AND CONTINUING THROUGH CHRISTMAS DAY. THE HEAVIEST PRECIPITATION CAN BE EXPECTED ON CHRISTMAS DAY AS A COLD FRONT APPROACHES THE REGION. A TOTAL OF 3 TO 6 INCHES OF SNOWFALL CAN BE EXPECTED BY LATE CHRISTMAS DAY WITH LOCAL AREAS AND HIGHER MOUNTAINS RECEIVING UP TO 8 INCHES OF ADDITIONAL SNOWFALL. TRAVEL OVER MARIAS PASS MAY BECOME DIFFICULT AT TIMES. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 242027 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 127 PM MST WED DEC 24 2008 ...ANOTHER WINTER STORM WILL MOVE THROUGH WESTERN MONTANA AND CENTRAL IDAHO THROUGH CHRISTMAS... ...DIFFICULT TRAVEL OVER LOOKOUT AND LOLO PASSES EXPECTED... .A MOIST AND DYNAMIC WINTER STORM IS MOVING ASHORE AND WILL BEGIN TO CROSS THE NORTHERN ROCKIES REGION LATE THIS AFTERNOON THROUGH THE EVENING HOURS. DEEP LIFTING OF WARM...MOIST AIR OVER THE DOME OF COLD AIR CURRENTLY OVER THE REGION WILL PRODUCE PERSISTENT LIGHT TO MODERATE SNOWFALL THIS AFTERNOON THROUGH CHRISTMAS DAY OVER NORTHWEST MONTANA AND NORTH CENTRAL IDAHO. THE SNOW WILL INTENSIFY OVERNIGHT INTO CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. CURRENT TIMING MOVES THE COLD FRONT THROUGH WESTERN MONTANA BY LATE CHRISTMAS MORNING...SPREADING LIGHT TO MODERATE SNOWFALL AT TIMES. SHOWERY CONDITIONS BEHIND THE FRONT WILL CONTINUE LIGHT ACCUMULATING SNOWFALL THROUGH CHRISTMAS DAY. IDZ005-006-MTZ001-004-006-250330- /O.CON.KMSO.WS.W.0018.081225T0000Z-081226T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS- 127 PM MST WED DEC 24 2008 /1227 PM PST WED DEC 24 2008/ ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM MST /4 PM PST/ THIS AFTERNOON TO 5 PM MST /4 PM PST/ THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM MST /4 PM PST/ THIS AFTERNOON TO 5 PM MST /4 PM PST/ THURSDAY. LIGHT SNOW WILL BEGIN TO ACCUMULATE THROUGHOUT THE DAY BECOMING HEAVIER LATE THIS AFTERNOON AND OVERNIGHT THROUGH CHRISTMAS DAY. MOST AREAS WILL SEE TOTAL SNOWFALL OF 8 TO 12 INCHES BY THE END OF CHRISTMAS DAY WITH UP TO 16 INCHES POSSIBLE IN THE MOUNTAINS. TRAVEL OVER LOOKOUT...LOLO...AND LOST TRAIL PASSES WILL BE DIFFICULT AT TIMES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ003-250330- /O.EXT.KMSO.WW.Y.0020.081225T0300Z-081226T0000Z/ FLATHEAD/MISSION VALLEYS- 127 PM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST THURSDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST THURSDAY. PERIODS OF LIGHT SNOW WILL BEGIN THIS EVENING GRADUALLY BECOME MORE INTENSE OVERNIGHT AND THROUGH CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. SNOW SHOWERS ARE LIKELY BEHIND THE FRONT IN THE AFTERNOON AND EVENING OF CHRISTMAS. MOST AREAS CAN EXPECT TO SEE 2 TO 4 INCHES OF TOTAL SNOWFALL BY THE END OF CHRISTMAS DAY. TRAVEL OVER EVARO HILL MAY BE DIFFICULT AT TIMES. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ005-250330- /O.EXT.KMSO.WW.Y.0020.081225T0600Z-081226T0000Z/ MISSOULA/BITTERROOT VALLEYS- 127 PM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. PERIODS OF LIGHT SNOW WILL BEGIN LATE THIS EVENING AND CONTINUE THROUGH CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. SNOW SHOWERS WILL CONTINUE IN THE AFTERNOON AND EVENING OF CHRISTMAS. MOST AREAS CAN EXPECT TO SEE 1 TO 3 INCHES OF TOTAL SNOWFALL BY THE END OF CHRISTMAS DAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ007-250330- /O.CON.KMSO.WW.Y.0020.081225T0000Z-081225T1800Z/ OROFINO/GRANGEVILLE REGION- 1227 PM PST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST THURSDAY. LIGHT SNOW WILL BEGIN TO FALL...MAINLY NORTH OF KOOSKIA...THIS AFTERNOON AND GRADUALLY BECOME HEAVIER OVERNIGHT INTO CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. LOCATIONS SOUTH TOWARDS GRANGEVILLE WILL INITIALLY BE DOWN SLOPED EXPERIENCING SOUTH WINDS OF 25 TO 40 MPH THIS EVENING. THOUGH ACCUMULATING SNOWFALL IS NOT EXPECTED UNTIL AFTER 10 PM AROUND GRANGEVILLE... GUSTY WINDS WILL PRODUCE AREAS OF BLOWING SNOW...ESPECIALLY ACROSS THE CAMAS PRAIRIE. 3 TO 6 INCHES OF TOTAL SNOWFALL ARE EXPECTED THROUGHOUT THE AREA BY MID DAY ON CHRISTMAS. A SECONDARY WEATHER FEATURE MAY MOVE OVER THE AREA CHRISTMAS NIGHT WITH THE POTENTIAL TO BRING AN ADDITIONAL 2 TO 4 INCHES OF SNOWFALL BY FRIDAY MORNING.. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ002-043-250330- /O.CON.KMSO.WW.Y.0020.081225T0600Z-081226T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 127 PM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. LIGHT SNOW WILL BEGIN TO FALL LATE THIS AFTERNOON...GRADUALLY INCREASING OVERNIGHT AND CONTINUING THROUGH CHRISTMAS DAY. THE HEAVIEST PRECIPITATION CAN BE EXPECTED ON CHRISTMAS DAY AS A COLD FRONT APPROACHES THE REGION. A TOTAL OF 3 TO 6 INCHES OF SNOWFALL CAN BE EXPECTED BY LATE CHRISTMAS DAY WITH LOCAL AREAS AND HIGHER MOUNTAINS RECEIVING UP TO 8 INCHES OF ADDITIONAL SNOWFALL. TRAVEL OVER MARIAS PASS MAY BECOME DIFFICULT AT TIMES. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 250119 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 619 PM MST WED DEC 24 2008 ...ANOTHER WINTER STORM WILL MOVE THROUGH WESTERN MONTANA AND CENTRAL IDAHO THROUGH CHRISTMAS... ...DIFFICULT TRAVEL OVER LOOKOUT AND LOLO PASSES EXPECTED... .A MOIST WINTER STORM IS PUSHING INTO THE NORTHERN ROCKIES THIS EVENING. DEEP LIFTING OF WARM...MOIST AIR OVER THE DOME OF COLD AIR CURRENTLY OVER THE REGION WILL SPREAD PERSISTENT MODERATE TO HEAVY SNOW OVER NORTH CENTRAL IDAHO AND FAR WESTERN MONTANA TONIGHT. A COLD FRONT WILL MAINTAIN THE SNOW AS IT PUSHES INTO NORTHERN IDAHO LATE TONIGHT THEN THROUGH WESTERN MONTANA AND SOUTHEASTERN IDAHO TOMORROW. SHOWERY CONDITIONS BEHIND THE FRONT WILL CONTINUE LIGHT ACCUMULATING SNOWFALL THROUGH THE AFTERNOON. IDZ005-006-MTZ001-004-006-251230- /O.CON.KMSO.WS.W.0018.000000T0000Z-081226T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS- 619 PM MST WED DEC 24 2008 /519 PM PST WED DEC 24 2008/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THURSDAY. MOST AREAS WILL SEE TOTAL SNOWFALL OF 8 TO 12 INCHES BY THE END OF CHRISTMAS DAY WITH UP TO 16 INCHES POSSIBLE IN THE MOUNTAINS. TRAVEL OVER LOOKOUT...LOLO...AND LOST TRAIL PASSES WILL BE DIFFICULT AT TIMES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IDZ009-010-251230- /O.EXB.KMSO.WW.Y.0020.081225T1200Z-081226T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 619 PM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 AM TO 5 PM MST THURSDAY. LIGHT SNOW WILL BEGIN OVER LEMHI COUNTY LATE TONIGHT...HOWEVER THE BEST ACCUMULATIONS WILL BE THURSDAY MORNING THROUGH THE AFTERNOON AS A COLD FRONT APPROACHES THE AREA. THE LOWER VALLEYS WILL SEE 2 TO 5 INCHES...WHILE HIGHER VALLEYS AND MOUNTAINS COULD SEE 4 TO 8 INCHES. THIS MAY CAUSE HAZARDOUS TRAVEL AT TIMES...PARTICULARLY ALONG HIGHWAY 93 FROM NORTH FORK TO LOST TRAIL PASS...AS WELL AS BANNOCK AND LEMHI PASSES AND GILMORE SUMMIT ALONG HIGHWAY 28. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ003-251230- /O.CON.KMSO.WW.Y.0020.081225T0300Z-081226T0000Z/ FLATHEAD/MISSION VALLEYS- 619 PM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THURSDAY. MOST AREAS CAN EXPECT TO SEE 2 TO 4 INCHES OF TOTAL SNOWFALL BY THE END OF CHRISTMAS DAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ005-251230- /O.CON.KMSO.WW.Y.0020.081225T0600Z-081226T0000Z/ MISSOULA/BITTERROOT VALLEYS- 619 PM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. PERIODS OF LIGHT TO MODERATE SNOW WILL BEGIN LATE THIS EVENING AND PERSIST THROUGH CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. WIDESPREAD SNOW SHOWERS WILL CONTINUE BEHIND THE FRONT. MOST AREAS CAN EXPECT TO SEE 1 TO 3 INCHES OF TOTAL SNOWFALL BY THE END OF CHRISTMAS DAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ007-251230- /O.CON.KMSO.WW.Y.0020.000000T0000Z-081225T1800Z/ OROFINO/GRANGEVILLE REGION- 519 PM PST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THURSDAY. SNOW WILL GRADUALLY BECOME HEAVIER OVERNIGHT INTO CHRISTMAS MORNING AS A COLD FRONT APPROACHES THE REGION. 3 TO 6 INCHES OF TOTAL SNOWFALL ARE EXPECTED THROUGHOUT THE AREA BY MID DAY ON CHRISTMAS. BLOWING SNOW IS ALSO POSSIBLE ACROSS THE CAMAS PRAIRIE THIS EVENING DUE TO GUSTY WINDS MAINLY OUT OF THE SOUTH. A SECONDARY WEATHER FEATURE MAY MOVE OVER THE AREA CHRISTMAS NIGHT WITH THE POTENTIAL TO BRING AN ADDITIONAL 2 TO 4 INCHES OF SNOWFALL BY FRIDAY MORNING.. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ002-043-251230- /O.CON.KMSO.WW.Y.0020.081225T0600Z-081226T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 619 PM MST WED DEC 24 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST THURSDAY. LIGHT SNOW WILL GRADUALLY INCREASING OVERNIGHT AND CONTINUE THROUGH CHRISTMAS DAY. ACCUMULATIONS WILL GENERALLY RANGE FROM 3 TO 6 INCHES. TRAVEL OVER MARIAS PASS MAY BECOME DIFFICULT AT TIMES. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 251024 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 324 AM MST THU DEC 25 2008 ...ANOTHER WINTER STORM WILL CONTINUE TO MOVE THROUGH WESTERN MONTANA AND CENTRAL IDAHO TODAY... ...DIFFICULT TRAVEL OVER LOOKOUT AND LOLO PASSES EXPECTED... .A MOIST WINTER STORM IS PUSHING INTO THE NORTHERN ROCKIES TODAY. A COLD FRONT WILL MAINTAIN THE SNOW AS IT PUSHES INTO NORTHERN IDAHO AND WESTERN MONTANA AND SOUTHEASTERN IDAHO TODAY. SHOWERY CONDITIONS BEHIND THE FRONT WILL CONTINUE LIGHT ACCUMULATING SNOWFALL THROUGH THE EVENING. IDZ005-006-MTZ001-004-006-251830- /O.CON.KMSO.WS.W.0018.000000T0000Z-081226T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS- 324 AM MST THU DEC 25 2008 /224 AM PST THU DEC 25 2008/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON. MOST AREAS WILL SEE TOTAL SNOWFALL OF 8 TO 12 INCHES BY THE END OF TODAY WITH UP TO 16 INCHES POSSIBLE IN THE MOUNTAINS. TRAVEL OVER LOOKOUT...LOLO...AND LOST TRAIL PASSES WILL BE DIFFICULT AT TIMES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ003-251830- /O.CON.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ FLATHEAD/MISSION VALLEYS- 324 AM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. MOST AREAS CAN EXPECT TO SEE 2 TO 4 INCHES OF TOTAL SNOWFALL BY THE END OF TODAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ005-251830- /O.CON.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ MISSOULA/BITTERROOT VALLEYS- 324 AM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. PERIODS OF LIGHT TO MODERATE SNOW WILL PERSIST TODAY AS A COLD FRONT APPROACHES THE REGION. WIDESPREAD SNOW SHOWERS WILL CONTINUE BEHIND THE FRONT. MOST AREAS CAN EXPECT TO SEE 1 TO 4 INCHES OF TOTAL SNOWFALL BY THE END TODAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ002-043-251830- /O.CON.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 324 AM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH TODAY. ACCUMULATIONS WILL GENERALLY RANGE FROM 3 TO 6 INCHES. TRAVEL OVER MARIAS PASS MAY BECOME DIFFICULT AT TIMES. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ007-251800- /O.CON.KMSO.WW.Y.0020.000000T0000Z-081225T1800Z/ OROFINO/GRANGEVILLE REGION- 224 AM PST THU DEC 25 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING. SNOW WILL CONTINUE THROUGH THIS MORNING AS A COLD FRONT APPROACHES THE REGION. 3 TO 6 INCHES OF TOTAL SNOWFALL ARE EXPECTED THROUGHOUT THE AREA BY MID DAY TODAY. A SECONDARY WEATHER FEATURE MAY MOVE OVER THE AREA TONIGHT WITH THE POTENTIAL TO BRING AN ADDITIONAL 2 TO 4 INCHES OF SNOWFALL BY FRIDAY MORNING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ009-010-251830- /O.CON.KMSO.WW.Y.0020.081225T1200Z-081226T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 324 AM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. LIGHT SNOW WILL CONTINUE OVER LEMHI COUNTY THIS MORNING...HOWEVER THE BEST ACCUMULATIONS WILL BE THIS AFTERNOON AS A COLD FRONT APPROACHES THE AREA. THE LOWER VALLEYS WILL SEE 2 TO 5 INCHES...WHILE HIGHER VALLEYS AND MOUNTAINS COULD SEE 4 TO 8 INCHES. BLOWING AND DRIFTING SNOW IS ALSO POSSIBLE ACROSS LEMHI COUNTY THIS MORNING DUE TO GUSTY WINDS MAINLY OUT OF THE SOUTH. THIS MAY CAUSE HAZARDOUS TRAVEL AT TIMES...PARTICULARLY ALONG HIGHWAY 93 FROM NORTH FORK TO LOST TRAIL PASS...AS WELL AS BANNOCK AND LEMHI PASSES AND GILMORE SUMMIT ALONG HIGHWAY 28. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 251750 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1050 AM MST THU DEC 25 2008 ...A WINTER STORM WILL CONTINUE TO MOVE THROUGH WESTERN MONTANA AND CENTRAL IDAHO TODAY... ...DIFFICULT TRAVEL OVER LOOKOUT AND LOLO PASSES EXPECTED... .A MOIST WINTER STORM IS PUSHING INTO THE NORTHERN ROCKIES TODAY. A COLD FRONT WILL MAINTAIN THE SNOW AS IT PUSHES INTO NORTHERN IDAHO AND WESTERN MONTANA AND SOUTHEASTERN IDAHO TODAY. SHOWERY CONDITIONS BEHIND THE FRONT WILL CONTINUE LIGHT ACCUMULATING SNOWFALL THROUGH THE EVENING. IDZ007-251900- /O.CAN.KMSO.WW.Y.0020.000000T0000Z-081225T1800Z/ OROFINO/GRANGEVILLE REGION- 950 AM PST THU DEC 25 2008 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WINTER WEATHER ADVISORY. SNOWFALL HAS TAPERED OFF IN THE OROFINO GRANGEVILLE AREA WITH ONLY LIGHT ACCUMULATIONS REPORTED. SOME SCATTERED SNOW SHOWERS WITH LIGHT ACCUMULATIONS ARE EXPECTED THROUGH THIS EVENING THUS THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. $$ IDZ005-006-MTZ001-004-006-260000- /O.CON.KMSO.WS.W.0018.000000T0000Z-081226T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS- 1050 AM MST THU DEC 25 2008 /950 AM PST THU DEC 25 2008/ ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON. MOST AREAS WILL SEE TOTAL SNOWFALL OF 8 TO 12 INCHES BY THE END OF TODAY WITH UP TO 16 INCHES POSSIBLE IN THE MOUNTAINS. TRAVEL OVER LOOKOUT...LOLO...AND LOST TRAIL PASSES WILL BE DIFFICULT AT TIMES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MTZ003-260000- /O.CON.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ FLATHEAD/MISSION VALLEYS- 1050 AM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. MOST AREAS CAN EXPECT TO SEE 2 TO 4 INCHES OF TOTAL SNOWFALL...WITH LOCAL AREAS TO 6 INCHES BY THE END OF TODAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ005-260000- /O.CON.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ MISSOULA/BITTERROOT VALLEYS- 1050 AM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. PERIODS OF LIGHT TO MODERATE SNOW WILL PERSIST TODAY AS A COLD FRONT APPROACHES THE REGION. WIDESPREAD SNOW SHOWERS WILL CONTINUE BEHIND THE FRONT. MOST AREAS CAN EXPECT TO SEE 1 TO 4 INCHES OF TOTAL SNOWFALL BY THE END TODAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MTZ002-043-260000- /O.CON.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 1050 AM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH TODAY. ACCUMULATIONS WILL GENERALLY RANGE FROM 3 TO 6 INCHES WITH LOCALLY HIGER AMOUNTS TO 8 INCHES. TRAVEL OVER MARIAS PASS MAY BECOME DIFFICULT AT TIMES. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IDZ009-010-260000- /O.CON.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 1050 AM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. LIGHT SNOW WILL CONTINUE OVER LEMHI COUNTY THIS MORNING...HOWEVER THE BEST ACCUMULATIONS WILL BE THIS AFTERNOON AS A COLD FRONT APPROACHES THE AREA. THE LOWER VALLEYS WILL SEE 2 TO 5 INCHES... WHILE HIGHER VALLEYS AND MOUNTAINS COULD SEE 4 TO 8 INCHES. BLOWING AND DRIFTING SNOW IS ALSO POSSIBLE ACROSS LEMHI COUNTY THIS MORNING DUE TO GUSTY WINDS MAINLY OUT OF THE SOUTH. THIS MAY CAUSE HAZARDOUS TRAVEL AT TIMES...PARTICULARLY ALONG HIGHWAY 93 FROM NORTH FORK TO LOST TRAIL PASS...AS WELL AS BANNOCK AND LEMHI PASSES AND GILMORE SUMMIT ALONG HIGHWAY 28. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS45 KMSO 252348 WSWMSO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 448 PM MST THU DEC 25 2008 IDZ005-006-MTZ001-004-006-260100- /O.EXP.KMSO.WS.W.0018.000000T0000Z-081226T0000Z/ NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION- BITTERROOT/SAPPHIRE MOUNTAINS- 448 PM MST THU DEC 25 2008 /348 PM PST THU DEC 25 2008/ ...WINTER STORM WARNING WILL EXPIRE AT 5 PM MST /4 PM PST/ THIS AFTERNOON... THE WINTER STORM WARNING WILL EXPIRE AT 5 PM MST /4 PM PST/ THIS AFTERNOON. THE MAIN FRONTAL SYSTEM HAS PASSED THE REGION LEAVING ONLY LIGHT SNOWFALL IN ITS WAKE. THERE IS SECONDARY CIRCULATION OVER EASTERN WASHINGTON THAT COULD PROVIDE ANOTHER SHORT BURST OF SNOW LATER TONIGHT...BUT ADDITIONAL ACCUMULATIONS WILL GENERALLY BE LESS THAN TWO INCHES. $$ MTZ003-260100- /O.EXP.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ FLATHEAD/MISSION VALLEYS- 448 PM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON. THE MAIN FRONTAL SYSTEM HAS PASSED THE REGION LEAVING ONLY LIGHT SNOWFALL IN ITS WAKE. THERE IS SECONDARY CIRCULATION OVER EASTERN WASHINGTON THAT COULD PROVIDE MORE LIGHT SNOW ACCUMULATIONS LATER TONIGHT...BUT AMOUNTS WILL GENERALLY BE LESS THAN AN INCH. $$ MTZ005-260100- /O.EXP.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ MISSOULA/BITTERROOT VALLEYS- 448 PM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON. THE MAIN FRONTAL SYSTEM HAS PASSED THE REGION LEAVING ONLY LIGHT SNOWFALL IN ITS WAKE. THERE IS SECONDARY CIRCULATION OVER EASTERN WASHINGTON THAT COULD PROVIDE MORE LIGHT SNOW ACCUMULATIONS LATER TONIGHT...BUT AMOUNTS WILL GENERALLY BE LESS THAN AN INCH. $$ MTZ002-043-260100- /O.EXP.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION- 448 PM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON. THE MAIN FRONTAL SYSTEM IS EXITING THE REGION. SNOW SHOWERS WILL PERSIST OVERNIGHT IN THE UNSTABLE AIR MASS...BUT ADDITIONAL ACCUMULATIONS WILL GENERALLY BE LESS THAN TWO INCHES. $$ IDZ009-010-260100- /O.EXP.KMSO.WW.Y.0020.000000T0000Z-081226T0000Z/ WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- 448 PM MST THU DEC 25 2008 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON. THE MAIN FRONTAL SYSTEM IS EXITING THE REGION. SNOW SHOWERS WILL PERSIST OVERNIGHT IN THE UNSTABLE AIR MASS...BUT ADDITIONAL ACCUMULATIONS WILL GENERALLY BE LESS THAN TWO INCHES. $$
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this winter storm warning went out at Dec 23, 8:18 PM PST, 6 hours 31 minutes earlier.
Area forecast discussion, Dec 23, 8:18 PM PST, 6 hours 31 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
918 PM MST TUE DEC 23 2008
.DISCUSSION...LOW LEVEL STRATUS CONTINUES ACROSS NORTHWEST AND
WEST CENTRAL MONTANA. VERY LIGHT SNOW IS FALLING...MAINLY IN THE
MOUNTAINS...FROM THIS LOW STRATUS DECK AND WILL PERSIST THROUGH
MORNING. EXPECT LITTLE IF ANY SNOWFALL ACCUMULATION...EXCEPT FOR
AN INCH AT THE HIGHER ELEVATIONS.
&&
.AVIATION...LOW CEILINGS WILL CONTINUE TO OBSCURE THE HIGHER
TERRAIN THROUGH THE OVERNIGHT HOURS AS A SECONDARY WAVE OF ENERGY
ROTATES THROUGH THE NORTHERN ROCKIES. SNOW SHOWERS...PERIODICALLY
LOWERING VISIBILITY...WILL PERSIST THROUGH THE MORNING HOURS
MAINLY IN THE HIGHER ELEVATIONS. SNOW SHOWERS WILL INCREASE
THURSDAY MORNING AS ANOTHER WINTER SYSTEM MOVES INTO THE REGION.
.PREV DISCUSSION... /ISSUED 252 PM MST TUE DEC 23 2008/
.DISCUSSION...A WEAK WAVE OF ENERGY WILL CONTINUE TO ROTATE
THROUGH WESTERN MONTANA AND NORTH CENTRAL IDAHO THIS EVENING.
EXPECT TO SEE SNOW SHOWERS CONTINUE AHEAD OF THIS
FEATURE...ESPECIALLY IN SOUTHWEST AND WEST CENTRAL MONTANA WHERE
SNOW HAS BEEN PERSISTENT THROUGH MUCH OF THE DAY. INTENSITY OF
THESE SHOWERS SHOULD REMAIN LIGHT BUT SOME ACCUMULATIONS UP TO AN
INCH WILL BE POSSIBLE. ACROSS NORTHWEST MONTANA AND NORTH CENTRAL
IDAHO...EXPECT SNOW SHOWERS TO DISSIPATE THIS AFTERNOON AS THE
BACKSIDE OF THE WAVE PREVIOUSLY MENTIONED EXITS THE AREA.
ANOTHER SIGNIFICANT SYSTEM IS STILL EXPECTED TO SPREAD SNOW ACROSS
THE REGION WEDNESDAY THROUGH THURSDAY. MUCH OF THE ENERGY WITH
THIS SYSTEM WILL MOVE WELL SOUTH OF THE NORTHERN ROCKIES...WITH
SOME QUESTIONS IN TIMING AND OVERALL STRENGTH STILL TO BE
RESOLVED. THEREFORE...HAVE KEPT THE WINTER HIGHLIGHTS AS WATCHES
FOR NOW. CURRENT TIMING SUGGESTS LIGHT TO MODERATE ACCUMULATIONS
BEGINNING OVER THE PANHANDLE AND EXTREME NORTHWEST MONTANA MIDDAY
WEDNESDAY DUE TO THE LIFT IN THE WARM SECTOR OF THE SYSTEM. SNOW
WILL INTENSIFY AND BEGIN TO SPREAD EAST WEDNESDAY NIGHT AS A COLD
FRONT APPROACHES. THIS LOOKS LIKE THE PERIOD FOR BEST
ACCUMULATIONS ACROSS NORTHERN IDAHO AND THE FAR WESTERN MONTANA
MOUNTAINS. THE FRONT WILL MOVE ACROSS WESTERN MONTANA
THURSDAY...SPREADING THE POSSIBILITY OF MODERATE TO HEAVY
ACCUMULATIONS INTO THAT AREA.
THE MAIN UPPER TROUGH AXIS WILL CROSS THE REGION THURSDAY NIGHT
MAINTAINING UNSTABLE SHOWERY CONDITIONS. THIS WILL PROVIDE A MORE
NORTHWESTERLY FLOW REGIME...MAINTAINING ACCUMULATING SNOW DUE TO
OROGRAPHIC LIFT OVER THE HIGHER TERRAIN...AS WELL AS THE
GRANGEVILLE AREA.
A PATTERN CHANGE IS IN THE OFFING FOR THE WEEKEND THROUGH MUCH OF
NEXT WEEK AS THE LONGWAVE TROUGH FINALLY MOVES EASTWARD ALLOWING A
VERY MOIST WESTERLY FLOW OVER THE NORTHWEST U.S. THIS WILL MODIFY
THE COOL AIR MASS THAT HAS BEEN IN PLACE AS SEVERAL WEAK WARM
FRONT-COLD FRONT SYSTEMS PUSH THROUGH. THE MOUNTAINS COULD SEE
NEARLY PERSISTENT LIFT AND ACCUMULATING SNOW THROUGH AT LEAST
MIDWEEK.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT... WINTER STORM WATCH FROM WEDNESDAY MORNING THROUGH THURSDAY
AFTERNOON FOR BITTERROOT/SAPPHIRE MOUNTAINS-
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-WEST
GLACIER REGION.
ID...WINTER STORM WATCH FROM WEDNESDAY MORNING THROUGH THURSDAY
AFTERNOON FOR NORTHERN CLEARWATER MOUNTAINS-SOUTHERN
CLEARWATER MOUNTAINS.
&&
SHORT TERM...RPN
LONG TERM....RPN
AVIATION...RPNHazardous weather outlook, Dec 23, 1:56 PM PST, 12 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MISSOULA MT 256 PM MST TUE DEC 23 2008 IDZ005-006-MTZ001-002-004-006-241000- NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS- KOOTENAI/CABINET REGION-WEST GLACIER REGION- LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS- 256 PM MST TUE DEC 23 2008 /156 PM PST TUE DEC 23 2008/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO...NORTHWEST MONTANA AND WEST CENTRAL MONTANA. FOR THE LATEST INFORMATION ON WATCHES...WARNINGS AND ADVISORIES...GO TO WEATHER.GOV/MISSOULA. .DAY ONE...THIS AFTERNOON AND TONIGHT LIGHT SNOW WILL CONTINUE THROUGHOUT THE REGION TONIGHT...BUT LITTLE ADDITIONAL ACCUMULATION IS EXPECTED. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY ANOTHER STRONG WINTER STORM WILL IMPACT THE AREA CHRISTMAS EVE THROUGH CHRISTMAS DAY. TRAVEL OVER MOUNTAIN PASSES WILL BE HAZARDOUS AT TIMES. PLEASE SEE WWW.WEATHER.GOV/MISSOULA FOR FURTHER DETAILS ABOUT THIS STORM. FORECAST MODELS CONTINUE TO SHOW THE POTENTIAL DEVELOPMENT OF AN EXTREMELY MOIST AND DYNAMIC WEATHER PATTERN NEXT WEEKEND CAPABLE OF PRODUCING VERY HEAVY MOUNTAIN SNOWFALL. CONSIDERING THE LARGE AMOUNT OF HOLIDAY TRAFFIC ANTICIPATED ON THE HIGHWAYS...DRIVERS THROUGHOUT THE AREA WILL WANT TO STAY ABREAST OF THE LATEST WEATHER FORECASTS AND POTENTIAL WINTER WEATHER HIGHLIGHTS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. IDZ007-008-241000- OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION- 156 PM PST TUE DEC 23 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO. .DAY ONE...THIS AFTERNOON AND TONIGHT LIGHT SNOW WILL CONTINUE THROUGHOUT THE REGION TONIGHT...BUT LITTLE ADDITIONAL ACCUMULATION IS EXPECTED. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY AN APPROACHING WINTER STORM WILL PRODUCE A TIGHTENING PRESSURE GRADIENT WHICH COULD RESULT IN STRONG AND GUSTY WINDS THROUGHOUT THE AREA WEDNESDAY AFTERNOON THROUGH THE EARLY EVENING. AS THESE WINDS INCREASE...THE POTENTIAL FOR BLOWING AND DRIFTING SNOW WILL EXIST DUE TO THE FRESH...LIGHT SNOW WHICH FELL OVER THE WEEKEND. THIS COULD PRODUCE LOWERED VISIBILITY AND SOME TRAVEL DIFFICULTIES. THEN POTENTIALLY MODERATE TO HEAVY SNOWFALL WILL BECOME POSSIBLE ACROSS THE AREA THROUGH CHRISTMAS DAY. FORECAST MODELS CONTINUE TO SHOW THE POTENTIAL DEVELOPMENT OF AN EXTREMELY MOIST AND DYNAMIC WEATHER PATTERN NEXT WEEKEND CAPABLE OF PRODUCING VERY HEAVY MOUNTAIN SNOWFALL. CONSIDERING THE LARGE AMOUNT OF HOLIDAY TRAFFIC ANTICIPATED ON THE HIGHWAYS...DRIVERS THROUGHOUT THE AREA WILL WANT TO STAY ABREAST OF THE LATEST WEATHER FORECASTS AND POTENTIAL WINTER WEATHER HIGHLIGHTS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. IDZ009-010-MTZ003-005-007-043-241000- WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY- FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS- BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION- 256 PM MST TUE DEC 23 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO...NORTHWEST MONTANA AND WEST CENTRAL MONTANA. .DAY ONE...THIS AFTERNOON AND TONIGHT LIGHT SNOW WILL CONTINUE THROUGHOUT THE REGION TONIGHT...BUT LITTLE ADDITIONAL ACCUMULATION IS EXPECTED. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY ANOTHER STRONG WINTER STORM...CAPABLE OF PRODUCING HEAVY SNOWFALL IN THE MOUNTAINS AND QUITE POSSIBLY THE VALLEYS...IS EXPECTED TO IMPACT THE AREA CHRISTMAS EVE THROUGH CHRISTMAS DAY. TRAVEL OVER MOUNTAIN PASSES AND ON LOCAL ROADS MAY BE HAZARDOUS AT TIMES DUE TO SNOW COVERED ROADWAYS. FORECAST MODELS CONTINUE TO SHOW THE POTENTIAL DEVELOPMENT OF AN EXTREMELY MOIST AND DYNAMIC WEATHER PATTERN NEXT WEEKEND CAPABLE OF PRODUCING VERY HEAVY MOUNTAIN SNOWFALL. CONSIDERING THE LARGE AMOUNT OF HOLIDAY TRAFFIC ANTICIPATED ON THE HIGHWAYS...DRIVERS THROUGHOUT THE AREA WILL WANT TO STAY ABREAST OF THE LATEST WEATHER FORECASTS AND POTENTIAL WINTER WEATHER HIGHLIGHTS. .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 24, 2:49 AM PST | Winter Weather Advisory | MSO | Clearwater, Idaho, Lemhi | 37 hr |
Nearby
Winter Storm Warnings in Montana, 2008Winter Storm Warnings in Idaho, 2008Every winter storm warning in 2008
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.